A species of the family Ranidae (true frogs). The only anuran properly referred to by the common name "bullfrog", it is the largest native anuran in North America.
Profound physical changes during maturation of living organisms from the immature forms to the adult forms, such as from TADPOLES to frogs; caterpillars to BUTTERFLIES.
Proteins obtained from species in the class of AMPHIBIANS.
The family of true frogs of the order Anura. The family occurs worldwide except in Antarctica.
An order of the class Amphibia, which includes several families of frogs and toads. They are characterized by well developed hind limbs adapted for jumping, fused head and trunk and webbed toes. The term "toad" is ambiguous and is properly applied only to the family Bufonidae.
Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.
One of the three ossicles of the middle ear. It transmits sound vibrations from the INCUS to the internal ear (Ear, Internal see LABYRINTH).
A genus of IRIDOVIRIDAE which infects fish, amphibians and reptiles. It is non-pathogenic for its natural host, Rana pipiens, but is lethal for other frogs, toads, turtles and salamanders. Frog virus 3 is the type species.
Vestibular nucleus lying immediately superior to the inferior vestibular nucleus and composed of large multipolar nerve cells. Its upper end becomes continuous with the superior vestibular nucleus.
An oval semitransparent membrane separating the external EAR CANAL from the tympanic cavity (EAR, MIDDLE). It contains three layers: the skin of the external ear canal; the core of radially and circularly arranged collagen fibers; and the MUCOSA of the middle ear.
A highly variable species of the family Ranidae in Canada, the United States and Central America. It is the most widely used Anuran in biomedical research.
Enzymes that catalyze the hydrolysis of ester bonds within RNA. EC 3.1.-.
Paired respiratory organs of fishes and some amphibians that are analogous to lungs. They are richly supplied with blood vessels by which oxygen and carbon dioxide are exchanged directly with the environment.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
A species of the family Ranidae occurring in a wide variety of habitats from within the Arctic Circle to South Africa, Australia, etc.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Cyanogen bromide (CNBr). A compound used in molecular biology to digest some proteins and as a coupling reagent for phosphoroamidate or pyrophosphate internucleotide bonds in DNA duplexes.
The oxygen-carrying proteins of ERYTHROCYTES. They are found in all vertebrates and some invertebrates. The number of globin subunits in the hemoglobin quaternary structure differs between species. Structures range from monomeric to a variety of multimeric arrangements.
A species of the family Ranidae which occurs primarily in Europe and is used widely in biomedical research.
Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins.
The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (= OXYGEN CONSUMPTION) or cell respiration (= CELL RESPIRATION).
The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.
A phylum of fungi that was formerly considered a subdivision of Phycomycetes. They are the only fungi that produce motile spores (zoospores) at some stage in their life cycle. Most are saprobes but they also include examples of plant, animal, and fungal pathogens.
VERTEBRATES belonging to the class amphibia such as frogs, toads, newts and salamanders that live in a semiaquatic environment.
Superficial infections of the skin or its appendages by any of various fungi.
Proteins which are synthesized in eukaryotic organisms and bacteria in response to hyperthermia and other environmental stresses. They increase thermal tolerance and perform functions essential to cell survival under these conditions.
A class of MOLECULAR CHAPERONES found in both prokaryotes and in several compartments of eukaryotic cells. These proteins can interact with polypeptides during a variety of assembly processes in such a way as to prevent the formation of nonfunctional structures.
A family of cellular proteins that mediate the correct assembly or disassembly of polypeptides and their associated ligands. Although they take part in the assembly process, molecular chaperones are not components of the final structures.
A family of low molecular weight heat-shock proteins that can serve as MOLECULAR CHAPERONES.
The commonest and widest ranging species of the clawed "frog" (Xenopus) in Africa. This species is used extensively in research. There is now a significant population in California derived from escaped laboratory animals.
A subfamily of small heat-shock proteins that function as molecular chaperones that aid in refolding of non-native proteins. They play a protective role that increases cellular survival during times of stress.
An serine-threonine protein kinase that requires the presence of physiological concentrations of CALCIUM and membrane PHOSPHOLIPIDS. The additional presence of DIACYLGLYCEROLS markedly increases its sensitivity to both calcium and phospholipids. The sensitivity of the enzyme can also be increased by PHORBOL ESTERS and it is believed that protein kinase C is the receptor protein of tumor-promoting phorbol esters.
A neoplasm characterized by abnormalities of the lymphoid cell precursors leading to excessive lymphoblasts in the marrow and other organs. It is the most common cancer in children and accounts for the vast majority of all childhood leukemias.
A family of enzymes that catalyze the conversion of ATP and a protein to ADP and a phosphoprotein.
Software used to locate data or information stored in machine-readable form locally or at a distance such as an INTERNET site.
A family of intracellular CYSTEINE ENDOPEPTIDASES that play a role in regulating INFLAMMATION and APOPTOSIS. They specifically cleave peptides at a CYSTEINE amino acid that follows an ASPARTIC ACID residue. Caspases are activated by proteolytic cleavage of a precursor form to yield large and small subunits that form the enzyme. Since the cleavage site within precursors matches the specificity of caspases, sequential activation of precursors by activated caspases can occur.
A progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow. Leukemias were originally termed acute or chronic based on life expectancy but now are classified according to cellular maturity. Acute leukemias consist of predominately immature cells; chronic leukemias are composed of more mature cells. (From The Merck Manual, 2006)
The immature stage in the life cycle of those orders of insects characterized by gradual metamorphosis, in which the young resemble the imago in general form of body, including compound eyes and external wings; also the 8-legged stage of mites and ticks that follows the first moult.
Method of making images on a sensitized surface by exposure to light or other radiant energy.
An edible species of the family Ranidae, occurring in Europe and used extensively in biomedical research. Commonly referred to as "edible frog".
The signs of life that may be monitored or measured, namely pulse rate, respiratory rate, body temperature, and blood pressure.

Backward movements of cross-bridges by application of stretch and by binding of MgADP to skeletal muscle fibers in the rigor state as studied by x-ray diffraction. (1/1086)

The effects of the applied stretch and MgADP binding on the structure of the actomyosin cross-bridges in rabbit and/or frog skeletal muscle fibers in the rigor state have been investigated with improved resolution by x-ray diffraction using synchrotron radiation. The results showed a remarkable structural similarity between cross-bridge states induced by stretch and MgADP binding. The intensities of the 14.4- and 7.2-nm meridional reflections increased by approximately 23 and 47%, respectively, when 1 mM MgADP was added to the rigor rabbit muscle fibers in the presence of ATP-depletion backup system and an inhibitor for muscle adenylate kinase or by approximately 33 and 17%, respectively, when rigor frog muscle was stretched by approximately 4.5% of the initial muscle length. In addition, both MgADP binding and stretch induced a small but genuine intensity decrease in the region close to the meridian of the 5.9-nm layer line while retaining the intensity profile of its outer portion. No appreciable influence was observed in the intensities of the higher order meridional reflections of the 14.4-nm repeat and the other actin-based reflections as well as the equatorial reflections, indicating a lack of detachment of cross-bridges in both cases. The changes in the axial spacings of the actin-based and the 14.4-nm-based reflections were observed and associated with the tension change. These results indicate that stretch and ADP binding mediate similar structural changes, being in the correct direction to those expected for that the conformational changes are induced in the outer portion distant from the catalytic domain of attached cross-bridges. Modeling of conformational changes of the attached myosin head suggested a small but significant movement (about 10-20 degrees) in the light chain-binding domain of the head toward the M-line of the sarcomere. Both chemical (ADP binding) and mechanical (stretch) intervensions can reverse the contractile cycle by causing a backward movement of this domain of attached myosin heads in the rigor state.  (+info)

Primary structure of a visual pigment in bullfrog green rods. (2/1086)

In frog retina there are special rod photoreceptor cells ('green rods') with physiological properties similar to those of typical vertebrate rods ('red rods'). A cDNA fragment encoding the putative green rod visual pigment was isolated from a retinal cDNA library of the bullfrog, Rana catesbeiana. Its deduced amino acid sequence has more than 65% identity with those of blue-sensitive cone pigments such as chicken blue and goldfish blue. Antisera raised against its C-terminal amino acid sequence recognized green rods. It is concluded that bullfrog green rods contain a visual pigment which is closely related to the blue-sensitive cone pigments of other non-mammalian vertebrates.  (+info)

Regulation of photoreceptor phosphodiesterase catalysis by its non-catalytic cGMP-binding sites. (3/1086)

The photoreceptor 3':5'-cyclic nucleotide phosphodiesterase (PDE) is the central enzyme of visual excitation in rod photoreceptors. The hydrolytic activity of PDE is precisely regulated by its inhibitory gamma subunit (Pgamma), which binds directly to the catalytic site. We examined the inhibition of frog rod outer segment PDE by endogenous Pgamma, as well as by synthetic peptides corresponding to its central and C-terminal domains, to determine whether the non-catalytic cGMP-binding sites on the catalytic alphabeta dimer of PDE allosterically regulate PDE activity. We found that the apparent binding affinity of Pgamma for PDE was 28 pM when cGMP occupied the non-catalytic sites, whereas Pgamma had an apparent affinity only 1/16 of this when the sites were empty. The elevated basal activity of PDE with empty non-catalytic sites can be decreased by the addition of nanomolar levels of cGMP, demonstrating that the high-affinity non-catalytic sites on the PDE catalytic dimer mediate this effect. No evidence for a direct allosteric effect of the non-catalytic sites on catalysis could be detected for the activated enzyme lacking bound Pgamma. The intrinsic affinity of a synthetic C-terminal (residues 63-87) Pgamma peptide to bind and to inhibit the hydrolytic activity of activated PDE was enhanced 300-fold in the presence of cGMP compared with cAMP. We conclude that the binding of cGMP to the non-catalytic sites of PDE induces an allosteric change in the structure of the catalytic domain that greatly enhances the interaction of the C-terminus of Pgamma with the catalytic domain.  (+info)

Depolarization-induced mitochondrial Ca accumulation in sympathetic neurons: spatial and temporal characteristics. (4/1086)

Several lines of evidence suggest that neuronal mitochondria accumulate calcium when the cytosolic free Ca(2+) concentration ([Ca(2+)](i)) is elevated to levels approaching approximately 500 nM, but the spatial, temporal, and quantitative characteristics of net mitochondrial Ca uptake during stimulus-evoked [Ca(2+)](i) elevations are not well understood. Here, we report direct measurements of depolarization-induced changes in intramitochondrial total Ca concentration ([Ca](mito)) obtained by x-ray microanalysis of rapidly frozen neurons from frog sympathetic ganglia. Unstimulated control cells exhibited undetectably low [Ca](mito), but high K(+) depolarization (50 mM, 45 sec), which elevates [Ca(2+)](i) to approximately 600 nM, increased [Ca](mito) to 13.0 +/- 1.5 mmol/kg dry weight; this increase was abolished by carbonyl cyanide p-(trifluoromethoxy) phenylhydrazone (FCCP). The elevation of [Ca](mito) was a function of both depolarization strength and duration. After repolarization, [Ca](mito) recovered to prestimulation levels with a time course that paralleled the decline in [Ca(2+)](i). Depolarization-induced increases in [Ca](mito) were spatially heterogeneous. At the level of single mitochondria, [Ca](mito) elevations depended on proximity to the plasma membrane, consistent with predictions of a diffusion model that considers radial [Ca(2+)](i) gradients that exist early during depolarization. Within individual mitochondria, Ca was concentrated in small, discrete sites, possibly reflecting a high-capacity intramitochondrial Ca storage mechanism. These findings demonstrate that in situ Ca accumulation by mitochondria, now directly identified as the structural correlate of the "FCCP-sensitive store, " is robust, reversible, graded with stimulus strength and duration, and dependent on spatial location.  (+info)

Behavioral reduction of infection risk. (5/1086)

Evolutionary biologists have long postulated that there should be fitness advantages to animals that are able to recognize and avoid conspecifics infected with contact-transmitted disease. This avoidance hypothesis is in direct conflict with much of epidemiological theory, which is founded on the assumptions that the likelihood of infection is equal among members of a population and constant over space. The inconsistency between epidemiological theory and the avoidance hypothesis has received relatively little attention because, to date, there has been no evidence that animals can recognize and reduce infection risk from conspecifics. We investigated the effects of Candida humicola, a pathogen that reduces growth rates and can cause death of tadpoles, on associations between infected and uninfected individuals. Here we demonstrate that bullfrog (Rana catesbeiana) tadpoles avoid infected conspecifics because proximity influences infection. This avoidance behavior is stimulated by chemical cues from infected individuals and thus does not require direct contact between individuals. Such facultative modulations of disease infection risk may have critical consequences for the population dynamics of disease organisms and their impact on host populations.  (+info)

Activation by bitter substances of a cationic channel in membrane patches excised from the bullfrog taste receptor cell. (6/1086)

1. The response to bitter-tasting substances was recorded in outside-out membrane patches excised from the taste receptor cell of the bullfrog fungiform papilla. 2. Application of a bitter-tasting substance, quinine or denatonium, induced channel openings under conditions in which none of the second messenger candidates or their precursors (e.g. cyclic nucleotide, inositol 1,4,5-trisphosphate, Ca2+, ATP and GTP) were present on either side of the membrane. The response could be recorded > 10 min after excision of the patch membrane. These data suggest that the channel was directly gated by the bitter-tasting substances. 3. No change in response was detected upon addition to the cytoplasmic side of either GDPbetaS (1 mM) or GTPgammaS (1 mM), suggesting that the G protein cascade has no direct relation to response generation. 4. The quinine-induced current was dose dependent. The lowest effective concentration was approximately 0.1 mM, and the saturating concentration was near 1 mM. The dose-response curve was fitted by the Hill equation with a K of 0.52 mM and a Hill coefficient of 3.8. 5. The single channel conductance measured in 120 mM NaCl solution was 10 pS. The channel was cation selective, and the ratio of the permeabilities for Na+, K+ and Cs+ (PNa : PK : PCs) was 1 : 0.48 : 0.39. The unitary conductance was dependent on the extracellular Ca2+ concentration ([Ca2+]o); 9.2 pS in a nominally Ca2+-free solution, and 4.5 pS in 1. 8 mM [Ca2+]o. 6. The dose dependence, the ion selectivity and the dependence of the unitary conductance on [Ca2+]o were almost identical to those of the quinine-induced whole-cell current reported previously, indicating that the channel activity observed in the excised membrane is the basis of the whole-cell current. 7. The present observations suggest the new possibility that the cationic channel directly gated by bitter substances is involved in the bitter taste transduction mechanism.  (+info)

Acute effects of inhalable particles on the frog palate mucociliary epithelium. (7/1086)

This work was designed to evaluate the toxicity of inhalable particles [less than/equal to] 10 microm in aerodynamic diameter (PM(10)) collected from the urban air in Sao Paulo, Brazil, to the mucociliary apparatus using the frog palate preparation. Seven groups of frog palates were immersed in different concentrations of PM(10) diluted in Ringer's solution during 120 min: 0 (control, n = 31); 50 (n = 10); 100 (n = 9); 500 (n = 28); 1,000 (n = 10); 5,000 (n = 11); and 10,000 microg/m(3) (n = 10). Mucociliary transport and transepithelial potential difference were determined at 0, 30, 60, and 120 min exposure. Additional groups (control and 500 microg/m(3)) were studied by means of morphometric analyses (quantification of the amount of intraepithelial and surface mucins), measurement of cilia beat frequency, and quantification of total glutathione. Mucociliary transport and transepithelial potential difference were significantly decreased at higher concentrations of PM(10) (p = 0.03 and p = 0.02, respectively). Exposure to PM(10) also elicited a significant decrease of total glutathione (p = 0. 003) and depletion of neutral intraepithelial mucins (p = 0.0461). These results show that PM(10) can promote significant alterations in ciliated epithelium in vitro.  (+info)

Water diffusion, T(2), and compartmentation in frog sciatic nerve. (8/1086)

A potential relationship between structural compartments in neural tissue and NMR parameters may increase the specificity of MRI in diagnosing diseases. Nevertheless, our understanding of MR of nerves and white matter is limited, particularly the influence of various water compartments on the MR signal is not known. In this study, components of the (1)H transverse relaxation decay curve in frog peripheral nerve were correlated with the diffusion characteristics of the water in the nerve. Three T(2) values were identified with nerve. Water mobility was found to be unrestricted on the timescale of 100 msec in the component of the signal with the intermediate T(2) time, suggesting some contribution from the interstitial space to this T(2) component. Restricted diffusion was observed in the component with the longest T(2) time, supporting the assignment of at least part of the spins contributing to this component to an intracellular compartment. The observed nonexponential behavior of the diffusion attenuation curves was investigated and shown to be potentially caused by the wide range of axon sizes in the nerve. Magn Reson Med 42:911-918, 1999.  (+info)

TY - JOUR. T1 - Effect of activin A and follistatin on the release of pituitary hormones in the bullfrog Rana catesbeiana. AU - Koda, Aya. AU - Yamamoto, Kazutoshi. AU - Uchiyama, Hideho. AU - Vaudry, Hubert. AU - Kikuyama, Sakae. PY - 2000/9. Y1 - 2000/9. N2 - The effects of activin A and follistatin on the release of follicle-stimulating hormone (FSH), luteinizing hormone (LH), growth hormone (GH) and prolactin (PRL) from dispersed pituitary cells of the bullfrogs Rana catesbeiana were studied. Activin A stimulated the release of FSH, GH, and PRL dose-dependently, but not that of LH. Follistatin suppressed the activin-induced FSH, GH, and PRL release, but did not affect the basal secretion of those hormones. From the results obtained in this experiment, together with the previously obtained findings that activin B enhanced the release of FSH, LH, GH, and PRL, we conclude that activin A, in addition to activin B, influences the function of multiple types of pituitary cells in the ...
To test the susceptibility of bullfrogs (Rana catesbeiana) to amphibian chytridiomycosis, groups of captive bred, recently metamorphosed bullfrogs were inoculated with zoospores of Batrachochytrium dendrobatidis, the causative agent of chytridiomycosis, and assayed for clinical and pathological signs of infection. A novel technique for counting B. dendrobatidis zoospore inocula is described. Inoculation regimes varied from single exposures of 1-10 million zoospores per animal to inocula of 10 million zoospores per animal per day for a 31 day period. Twenty-five to fifty percent of each inoculated cohort was histologically positive for B. dendrobatidis on necropsy. However, lesions were focal, small with relatively little thickening of the keratinized epidermis and no clinical signs of chytridiomycosis were observed. Only one animal died during the experiment, due to cardiac puncture procedure. A fungal isolate used in these experiments was inoculated onto four metamorphosed poison dart frogs ...
Blue American bullfrog, Rana catesbeiana, a rare mutation of a normally green frog caused by a lack of yellow pigment in the frogs skin. Mendocino County, California.
Blue American bullfrog, Rana catesbeiana, a rare mutation of a normally green frog caused by a lack of yellow pigment in the frogs skin. Mendocino County, California.
TY - JOUR. T1 - Retention of nociceptor responses during deep barbiturate anesthesia in frogs. AU - Downes, Hall. AU - Koop, Dennis. AU - Klopfenstein, Bethany. AU - Lessov, Nickola. PY - 1999/10. Y1 - 1999/10. N2 - Bullfrogs (Rana catesbeiana) anesthetized with a large dose of thiopental (42.8 mg/kg) retained movement responses to nociceptor stimuli despite an average plasma drug level of 51 mg/l, of which 63% was bound to plasma proteins. This concentration, when corrected to include only unbound and uncharged drug, was 2-fold greater than those reported to abolish nociceptor response (NR) during surgical anesthesia in man. The median anesthetic dose (AD50) for loss of the righting reflex was 11.2 mg/kg by s.c. injection into the abdominal lymph sac; however, at 54.0 mg/kg, all frogs retained NRs, although otherwise deeply anesthetized. The ratio of NR-blocking dose to light AD was thus ,4.8, as compared to AB - Bullfrogs (Rana catesbeiana) anesthetized with a large dose of thiopental (42.8 ...
Learn about the American bullfrog, including their habitat, diet, range and population status, and where you can find them at the National Aquarium.
Bullfrogs, actually American bullfrogs (Rana catesbeiana), are native to almost all of eastern North America and south to Mexicos Isthmus of Tehuantepec. But they have also been introduced into swampy areas throughout much of North America, as far west as California and north to Canada. And it is likely that their range will continue to expand, as female bullfrogs can deposit huge egg-masses that can contain 20,000 eggs. Although those eggs and resultant tadpoles are subject to considerable predation, at least some of those baby bullfrogs are likely to survive. My bullfrog must have traveled overland as much as several miles to get into my pond. Yet bullfrogs can eat almost anything including other bullfrogs. Being cannibalistic, it is not unusual for a large adult to feed on its smaller companions. And when the adults grow up they also face the possibility of ending up as a human delicacy. Frog legs, fried to a golden brown and garnished with fried parsley and sliced lemon, can be superb ...
TY - JOUR. T1 - The secondary structure of a pyrimidine-guanine sequence-specific ribonuclease possessing cytotoxic activity from the oocytes of Rana catesbeiana. AU - Chen, Chinpan. AU - Hom, Kellie. AU - Huang, Rong Fong. AU - Chou, Ping Jung. AU - Liao, You Di. AU - Huang, Tai Huang. PY - 1996/1/1. Y1 - 1996/1/1. N2 - RC-RNase is a pyrimidine-guanine sequence-specific ribonuclease and a sialic-acid-binding lectin purified from Rana catesbeiana (bullfrog) oocytes. This 111-amino acid protein exhibits cytotoxicity toward several tumor cell lines. In this paper we report the assignments of proton NMR resonances and the identification of the secondary structure deduced from NOE constraints, chemical shift index, 3JNHα and amide proton exchange rates. The protein was directly isolated from bullfrog oocytes; we were able to assign all but five of the amino acid backbone protons of the unlabeled protein by analyzing a large set of two-dimensional proton NMR spectra obtained at several temperatures ...
Rabbits were immunized with frog or tadpole haemoglobin purified either by chromatography or by polyacrylamide gel electrophoresis. The obtained rabbit antisera were shown to be specific for frog or tadpole haemolysates by double diffusion, immunoprecipitation and immunofluorescence. Indirect immunofluorescent staining of peripheral blood smears of Rana catesbeiana tadpoles at the metamorphic climax revealed that 16% of the red cells were stained with antibodies against frog haemolysates, while almost all of them (98%) were stained with antibodies against tadpole haemolysates. These results are compatible with the possibility that some of the circulating red cells in metamorphosing tadpoles contain both tadpole and frog haemoglobins.. ...
I confirmed your identification, but it actually isnt possible to tell whether the frog in the picture is a bullfrog or a green frog. A clear picture of the back and head would have helped with identification. The backs of bullfrogs are smooth, while green frogs have a pair of ridges that run the length of the back, extending from just above their ear.. ...
Phenotypically similar species are hypothesized to adjust their behavior when they coexist to decrease competition. Pond-breeding frogs constitute an ideal system to address this hypothesis because multiple species may compete for noise-free periods to call for mates. American bullfrogs (Rana catesbeiana) and green frogs (R. clamitans) commonly co-occur in breeding ponds. Males of both species vocalize to defend territories and attract females. However, bullfrogs call more aggressively than green frogs and are expected to control access to the limiting acoustic resources. I predicted that green frogs increase chorusing activity in periods of bullfrog inactivity and that these patterns can be detected at both diel and seasonal scales. I used automated acoustic software to identify bullfrog and green frog vocalizations through two breeding seasons. Temporal partitioning occurs on a seasonal time scale. Bullfrog and green frog calling rates are both high early in the season in late May but then ...
Exposure of cells to environmental or chemical stressors will initiate the heat shock response, which is mediated by heat shock proteins. Heat shock proteins are molecular chaperones which are classified by size into six main families: HSP100, HSP90, HSP70, HSP60, HSP40 and the small heat shock proteins (sHsps). The sHsp family members bind to denatured proteins and maintain them in a folding competent state such that they may be refolded by other molecular chaperones. ,br /,,br /, The present study examined the expression and function of two amphibian sHsps, namely, ,em,Rana catesbeiana,/em, HSP30 and ,em,Xenopus laevis,/em, HSP27. Initially, an antisense riboprobe was produced to study the mRNA accumulation of ,em,Rana hsp30,/em, in cultured tongue fibroblast (FT) cells. Results showed that ,em,Rana hsp30,/em, mRNA was optimally induced when maintained at 35°C for 2 h. An antibody to the recombinant ,em,Rana,/em, HSP30 protein was also produced in order to study HSP30 protein accumulation ...
Rana catesbeiana. American bullfrog preserved in safe, nontoxic Carolinas Perfect Solution® and shipped immersed in preservation fluid in a sealed pail. Specimen is 6+ and single injected (red arteries). Prices listed are for 1 specimen.
Leukotriene (LT) C4, LTD4 and LTE4 have positive inotropic effects on contractility of the isolated perfused bullfrog heart. The effects of LTD4 and LTE4 but not LTC4 can be blocked by the mammalian antagonist L-649,923. Characterization of specific binding sites for [3H]LTC4 on membrane preparations from American bullfrog (Rana catesbeiana) ventricle was carried out. Binding assays were done in the presence of serine (5 mM) and borate (10 mM) for 30 min at 23 degrees C. Under these conditions, no metabolism of LTC4 to LTD4 occurred. Specific binding of [3H]LTC4 reached steady state within 10 min, remained constant for 60 min, and was reversible with the addition of 1000-fold excess unlabeled LTC4. Scatchard analysis of the binding data indicated a single class of binding sites with a Kd of 33.9 nM and maximal binding capacity of 51.6 pmol/mg of protein. Competition binding studies revealed an order of potency of LTC4 greater than LTD4 greater than LTE4 with Ki values of 47, 11766 and 32248 nM, ...
Dissection. Sacculi from adult American bullfrogs (Rana catesbeiana) were rapidly dissected into an oxygenated saline solution [containing (in mm): 120 NaCl, 2 KCl, 0.1 CaCl2, 3 dextrose, 5 HEPES, and 0.02% phenol red] and cleaned of extraneous tissue (Assad and Corey, 1992). The pH was adjusted to 7.23 with NaOH, and the final osmolarity was 250 mOsm/kg. Otolithic membranes overlying saccular epithelia were removed in fresh saline solution with fine forceps after incubation of the tissue in 75 μg/ml of subtilisin (Type XXVIII; Sigma, St. Louis, MO) for 20 min.. Immunohistochemistry. Tissues were fixed for 18 min in 4% formaldehyde in 80 mm sodium cacodylate buffer with 4 mm CaCl2, pH 7.35, at room temperature with gentle agitation. After fixation, tissues were rinsed (one time for 5 min) in 80 mm sodium cacodylate buffer without CaCl2 and (three times for 5 min each) in PBS (Life Technologies, Grand Island, NY) diluted to ∼250 mOsm, pH 7.4. This and all subsequent steps used PBS adjusted to ...
Stores iron in a soluble, non-toxic, readily available form. Important for iron homeostasis. Iron is taken up in the ferrous form and deposited as ferric hydroxides after oxidation.
We studied the uptake of 2-deoxy-D-glucose (2DG) and the synthesis of its phosphorylated product 2DG-6-phosphate (2DG-6P) by the retinas of the clawed frog (Xenopus laevis) and the bullfrog (Rana catesbeiana). Autoradiographs showed that most of the retinal 2DG uptake is by the photoreceptor layer. The 2DG accumulation by isolated Xenopus retinas was time and concentration dependent. The Kt for transport was 5.05 mM; Vmax was 6.99 X 10(-10) mol . mg-1 tissue wet weight min-1. The Km for 2DG-6P formation was estimated to be 2-3 mM and Vmax to be approximately 4 x 10(-9) mol . mg-1 min-1. 2DG uptake was inhibited competitively by glucose with a Ki of 2.29 mM. Exposure to light reduced 2DG uptake by no more than 10% as compared with dark uptake. Low sodium or ouabain (10(-4)-10(-7) M) treatment did not significantly alter 2DG uptake as compared with control retinas. In experiments upon intact, anesthetized bullfrogs, light reduced both the total amount of radioactivity acquired by the retina and ...
Medium, 4-5. Rana catesbeiana are usually available year round. Add 10% for sexing. Desired Date of Arrival can be entered during checkout. If you are ordering living organisms …
HaHaReptiles.com has Bullfrogs for sale (Rana catesbeiana) at wholesale prices. Free Shipping/500.00 More! No Box Charge! Min Order 200.00!
The first question is the easier. Mathew Fisher, an epidemiologist at Imperial College, says trade is getting this thing from continent to continent ... it doesnt survive in salt water, and, as far as we know, has no airborne stage. The most likely kind of trade is a trade in amphibians and there are two main possibilities - the African clawed frog and the North American bullfrog. Both can act as carriers because they are relatively resistant to Bd. The clawed frog is used in research whilst the bullfrog provides the frogs legs used in some cuisines. Circumstantial evidence from the UK and the Phillippines points to the bullfrog ...
It seems that not only is H. occidualis very specific are where it settles, it will also adjust accordingly if the host is different, to the degree that it would do so even if it has already developed into a fully-fledged adult fluke. When the researchers conducted further experiments where they transplanted adult flukes from under the tongue of gray tree frogs to other species of frogs, the flukes were quick to adjust. When the flukes were transplanted from a gray tree frog to yet another gray tree frog or a green frog, the fluke will move to its usual spot under the hosts tongue, even though it is now in a new host. But if those flukes were transplanted to an American bullfrog, the flukes would migrate to the bullfrogs stomach. Furthermore, when those parasites were then extracted from the bullfrog and transplanted back to the tree frog, they went back to living underneath the hosts tongue ...
A big male American Bullfrog calls from the edge of a lake in the daytime. He sat making single calls every few minutes, until suddenly lots of other bullfrogs began calling all around him and then he made his full calls. Here we see him start with a full series of calls, then wait a bit before making a second series of calls, but this time starting with some longer notes before doing his typical calls. There was a second male about 10 feet from him who was silent, but after the first male makes his second full series of calls, the second male begins calling at 1 minute 10 seconds into the video. We cant see him, but his calls sound about as loud as the first frog, but you hear them when you can see that the first frog is silent. This calling disturbed the first frog so much, he made a short, sharp, territorial call and leaps in the air in the direction of the second frog. When I finally found him again, he was closer to the second frog, but the second frog hadnt moved ...
Should have got this up yesterday as was my intention but time got tight and I missed. From a close encounter of the Lithobates catesbeianus kind, here is an American Bullfrog in a mud puddle near Hop Brook in Amherst. Getting this close is sometimes difficult but often not so much. It takes a slow approach…
Apoptosis, Leukemia, Acute Lymphoblastic Leukemia, Blood, Caspases, Kinase, Protein Kinase, Protein Kinase C, Isoforms, Kinases, Mice, and Inhibition
Hybridoma technology is used to fuse fusion a B cell and myeloma to form a hybridoma that produces identical monoclonal antibodies.
Large 2-4. Per 6. Desired Date of Arrival can be entered during checkout. If you are ordering living organisms and want more than one delivery date, you will need to make …
The modulation by muscarine or LHRH of the potassium M-current (IM) in whole-cell voltage-clamped bullfrog sympathetic neurons presents an initial phase of current reduction, followed, after agonist removal, by a transient enhancement or overrecovery. Employing a fast solution exchange system, an inhibitory process and an enhancing process were distinguished kinetically. The extent of overrecovery increased with the extent of the preceding inhibition. The rate and degree of inhibition increased with the concentration of agonist. In contrast, the rate of recovery and the extent of overrecovery were independent. The half-lives of the inhibitory and enhancing processes were 21 and 53 sec, respectively. Several observations suggest that arachidonic acid (AA) may be involved in overrecovery: (1) AA enhanced IM in a dose- dependent and reversible manner, with an IC50 of 2.8 microM. (2) Muscarine inhibited the A-current (IA), a potassium current that is blocked by AA. (3) Phospholipase A2 inhibitors ...
Reference : : Adams et al. 1982 - M-currents and other potassium currents in bullfrog sympathetic neurones :Comment: corrected rates using q10 = 2.3, target temperature 34, orginal 21 NEURON { SUFFIX Im USEION k READ ek WRITE ik RANGE gImbar, gIm, ik, offma, sloma, tauma, offmb, slomb, taumb } UNITS { (S) = (siemens) (mV) = (millivolt) (mA) = (milliamp) } PARAMETER { gImbar = 0.00001 (S/cm2) offma = -35 (mV) sloma = 10 (mV) tauma = 303.0303 (ms) offmb = -35 (mV) slomb = 10 (mV) taumb = 303.0303 (ms) } ASSIGNED { v (mV) ek (mV) ik (mA/cm2) gIm (S/cm2) mInf mTau mAlpha mBeta } STATE { m } BREAKPOINT { SOLVE states METHOD cnexp gIm = gImbar*m ik = gIm*(v-ek) } DERIVATIVE states { rates() m = (mInf-m)/mTau } INITIAL{ rates() m = mInf } PROCEDURE rates(){ LOCAL qt qt = 2.3^((34-21)/10) UNITSOFF mAlpha = exp(-(offma-v)/sloma)/tauma mBeta = exp((offmb-v)/slomb)/taumb mInf = mAlpha/(mAlpha + mBeta) mTau = (1/(mAlpha + mBeta))/qt UNITSON ...
South Korean researchers announced they have discovered a peptide in bullfrog skin that offer anti-oxidant and antiaging properties.
Bullfrog Dissection Model for biology and life science contains more than 150 labeled structures that make studying frog anatomy a breeze. Large size, detailed, three-dimensional structure.
Gene Sequences Published in PUBMED (NCBI). 1 FJ415875 : Kumar,A., Kumar,S., Chhokar,V., Rana, J.S., Kala, S.N., and Raut,A.A.,.( Nov.-2008) DGAT1 gene exon 8 sequence of ovine.. 2 FJ415876:Kumar,A., Kumar,S., Chhokar,V., Rana, J.S., Kala, S.N., Raut,A.A ( Nov.-2008) DGAT1 gene exon 8 sequence of caprine.. 3 FJ712657: Malik,G., Gupta,S., Pandey,A., Rana,J., Singh,N. and Gupta,N.. 4 FJ712658: Malik,G., Gupta,S., Rana,J., Singh,N., Pandey,A. and Gupta,N.. 5 FJ712659 Malik,G., Gupta,S., Rana,J., Singh,N., Pandey,A. and Gupta,N.. 6 FJ712660: Malik,G., Gupta,S., Rana,J., Pandey,A., Singh,N. and Gupta,N. 7 FJ712661: Malik,G., Gupta,N., Pandey,A., Rana,J., Singh,N. and Gupta,S.. 8 FJ712662 Malik,G., Gupta,N., Pandey,A., Rana,J., Singh,N. and Gupta,S.. 9 FJ712663: Malik,G., Gupta,S., Rana,J., Singh,N., Pandey,A. and Gupta,N.. 10 FJ712664: Malik,G., Gupta,N., Pandey,A., Rana,J., Singh,N. and Gupta,S.. 11 FJ712665: Malik,G., Gupta,N., Pandey,A., Rana,J., Singh,N. and Gupta,S.. 12 FJ712666 Malik,G., ...
Bullfrog Spas and the Marilyn Denis TV show gives away a free hot tub to a deserving mom as part of a backyard landscape makeover.
Uvod Prevalencija autoimunog tiroiditisa i celijakije je značajno češća u djece i adolescenata oboljelih od tip 1 šećerne bolesti nego u općoj populaciji. Celijakija je u dijabetičara često asimptomatska ili oligosimptomatska, a rizik za razvoj komplikacija je proporcionalan sa vremenom izloženošču glutenu, pa je neophodna rana dijagnoza celijakije. Autoimuni tiroiditis je čest uzrok stečenoj hipotireozi koja može utjecati na metaboličku kontrolu dijabetičara, te su rana dijagnoza i terapija od naročitog značaja. Do sada nema suglasja za probir na autoimuni tiroiditis i celijakiju u djece i adolescenata oboljelih od tip 1 šećerne bolesti. Cilj istraživanja Utvrditi pojavnost i tijek autoimunog tireoiditisa, poremećaja funkcije štitnjače i celijakije u djece i adolescenta oboljelih od tip 1 šećerne bolesti te čimbenike rizika za njihov razvoj. Također, analizirani su utjecaj autoimunog tiroiditisa i celijakije na rast, razvoj i metaboličku kontrolu dijabetičara. ...
U našoj poliklinici koristimo švicarsku tehnologiju PRP-a u cijeljenju rana, gdje posebnim postupkom (centrifugiranjem) iz krvi odvajamo krvne pločice i plazmu te dobivamo plazmu bogatu trombocitima, to jest PRP. Da bi ovakav pripravak bio spreman za kliničku uporabu dodatno se obogaćuje trombinskim serumom te ponovno centrifugira. PRP se primjenjuje nakon operacije u svrhu bržeg i manje bolnog zaraštavanje operativne rane.. Prednost ovakve terapije kod cijeljenja rana su:. ...
Dr Vibhuti Rana has been added to the yeastinfectionadvisor team because of her extensive experience in Microbiology, Molecular Biology and Biochemistry
When Ronald Renaud sold the company he was leading, Idenix Pharmaceuticals, to Merck for $3.85 billion six months ago, it was one of biotechs more unexpec
Herpetology A-96030 (MCZ:Herp:A-96030); Lithobates catesbeianus; North America: United States: Massachusetts: Berkshire; Massachusetts: Berkshire: Otis; Animalia Chordata Amphibia Lissamphibia Anura Ranoidea Ranidae Lithobates catesbeianus; American bullfrog; Animalia Chordata Amphibia Lissamphibia Anura Ranoidea Ranidae Rana catesbeiana; American bullfrog; Bullfrog
We identified four properties that reduced N-channel Po at depolarized voltages. These properties were null sweeps, low Po gating, inactivation, and slow activation. Several of these gating processes behaved in a manner consistent with the modal hypothesis. In particular, null sweeps were significantly clustered in the majority of our single N-channel patches. Clustering of null records has been reported for L-type calcium channels (Hess et al., 1984), skeletal muscle sodium channels (Horn et al., 1994), and N-type calcium channels (Rittenhouse and Hess, 1994). These clustered null sweeps were interpreted to result from a gating mode from which the channel will not open. Such a mode could be represented by a long-lived inactivated state that had a mean dwell time lasting several sweep intervals (4-6 s in our recordings). Whole-cell recordings have demonstrated an inactivation process from which N-current is slow to recover (Jones and Marks, 1989b).. In three single N-channel patches, we observed ...
mphibians are declining worldwide due to a variety of factors, including habitat loss and alteration, global climate change and predation and competition by non-native species. At the former Fort Ord in Monterey County, California the Bureau of Land Management (BLM) is attempting to document changes in amphibian populations by surveying each year. One of the concerns of the BLM is that the bullfrog (Rana catesbeiana), a non-native species, will negatively impact native amphibians living on the former Ft. Ord. Several sensitive species such as the California tiger salamander (Ambystoma tigrinum californiese), and the California red legged frog (Rana aurora draytonii) could be impacted. The 1999 survey include 3 vernal pools and 2 stock ponds and was completed between March 15 and May 2, 1999. This survey focused on the tadpole or larval stage of the amphibian life cycle. The results of the presence survey were analyzed using Sorensens coefficient or quotient of similarity. The vernal pools compared
Oxidative stress biomarkers, in vivo heart rate (f(H)), and contraction dynamics of ventricle strips of bullfrog (Lithobates catesbeiana) tadpoles were evaluated after 48 h of exposure to a sub-lethal concentration (1 ppm) of the herbicide Roundup Original (R) (glyphosate 41%). The activities of the antioxidant enzymes superoxide dismutase and catalase were increased in the liver and decreased in muscle, while oxidative damage to lipids increased above control values in both tissues, showing that the generation of reactive oxygen species and oxidative stress are involved in the toxicity induced by Roundup (R). Additionally, tadpoles hyperactivity was associated with tachycardia in vivo, probably due to a stress-induced adrenergic stimulation. Ventricle strips of Roundup (R)-exposed tadpoles (R-group) presented a faster relaxation and also a higher cardiac pumping capacity at the in vivo contraction frequency, indicating that bullfrog tadpoles were able to perform cardiac mechanistic adjustments ...
The American bullfrog is the largest frog found in BC. Adults can be up to 18-20 cm long, not including the legs. Bullfrogs were imported to BC for farming by frog leg farms. They have since become established throughout the Lower Mainland and on Vancouver Island from Victoria to Campbell River, and west to Port Alberni. They have also been found on several Gulf Islands and in the Kootenays. ...
During the day from spring through fall, visitors will not see or hear these animals unless they look under the bark of an old log or walk along a pond. However, just after sunset, a giant chorus of frogs begins to tune up, and the calls continue well into the night. Beginning in early March, spring peepers announce the coming of warmer weather, followed by the southeastern chorus frog, pickerel frog, and southern leopard frog. In May, calls of the northern green frog, American bullfrog, green tree frog, and Copes gray tree frog join in. By June, the Fowlers toad and eastern narrow-mouthed toads have their voices. Seven species of salamanders occur on Jamestown Island and six are found within the Yorktown Battlefield and along tour roads ...
Reference : : Adams et al. 1982 - M-currents and other potassium currents in bullfrog sympathetic neurones :Comment: corrected rates using q10 = 2.3, target temperature 34, orginal 21 NEURON { SUFFIX Im USEION k READ ek WRITE ik RANGE gImbar, gIm, ik, offma, sloma, tauma, offmb, slomb, taumb } UNITS { (S) = (siemens) (mV) = (millivolt) (mA) = (milliamp) } PARAMETER { gImbar = 0.00001 (S/cm2) offma = -35 (mV) sloma = 10 (mV) tauma = 303.0303 (ms) offmb = -35 (mV) slomb = 10 (mV) taumb = 303.0303 (ms) } ASSIGNED { v (mV) ek (mV) ik (mA/cm2) gIm (S/cm2) mInf mTau mAlpha mBeta } STATE { m } BREAKPOINT { SOLVE states METHOD cnexp gIm = gImbar*m ik = gIm*(v-ek) } DERIVATIVE states { rates() m = (mInf-m)/mTau } INITIAL{ rates() m = mInf } PROCEDURE rates(){ LOCAL qt qt = 2.3^((34-21)/10) UNITSOFF mAlpha = exp(-(offma-v)/sloma)/tauma mBeta = exp((offmb-v)/slomb)/taumb mInf = mAlpha/(mAlpha + mBeta) mTau = (1/(mAlpha + mBeta))/qt UNITSON ...
Extramacular hair cell from the bullfrog saccule, labeled with HCS1, a specific hair cellantibody, in red. Green is phalloidin label. For a detailed description, see the paper by Gales, Meyers, and Corwin in this issue.. ...
en] We report a case of lethal varicella developed in an immunocompromised man in his seventies. A study by immunohistochemistry and in situ hybridization was conducted revealing the presence of the glycoprotein gpI specific for VZV and its corresponding nucleic acids found in multiple foci of most tissues and organs, except in the brain and paravertebral sympathetic ganglia ...
Bullfrog Hot Tubs & BBQ of Ogden & Layton Utah is pleased to offer Wood Pellet Grills by Traeger. Why choose Traeger Pellet Grills? TASTE: Food
TORONTO, Sept. 8, 2016- Bullfrog Power and Beach Community Energy Co-operative Inc. launch solar installation on Torontos Kew Beach Junior Public School.
Tafelbier is a Saison / Farmhouse Ale style beer brewed by Bullfrog Brewery in Williamsport, PA. 3.9 average with 1 ratings, reviews and opinions.
Careful exploration has been made of the electrical activity of the brain of various mammals (Adrian and Matthews 1934; Gerard, Marshall and Saul 1936; Gerard 1936 a and b), but there has been very little study of the brains of other vertebrates (Adrian 1931; Umrath and Umrath 1934). The small size and relatively homogeneous cell population of the Amphibian brain offer certain advantages in analysis of the physicochemical factors determining activity; and further, the low metabolism of the poikilothermic brain at room temperature, together with the short distances for oxygen diffusion, suggested the possibility of studying sustained activity in the isolated organ. The present report covers a general exploration of spontaneous electrical changes in the neuraxis of the grass frog (Rana pipiens) and bull frog (R. catesbiana). ...
Find Written By Sarika Rana Latest News, Videos & Pictures on Written By Sarika Rana and see latest updates, news, information from NDTV.COM. Explore more on Written By Sarika Rana.
Connect with Dr. Rana Bahl, Cardiology, Montclair, CA. Video chat, send a message, ask a text question, or make a virtual appointment on the doctors Virtual Practice on HealthTap.
rana klatki piersiowej - tłumaczenie na angielski oraz definicja. Co znaczy i jak powiedzieć rana klatki piersiowej po angielsku? - chest injury
Bristol [UK], June 17 (ANI): Sneh Rana along with Deepti Sharma was one of the star performers for India on day one of the one-off Test against England here at the Bristol County Ground on Wednesday.
Dudok B, Klein PM, Hwaun E, Lee BR, Yao Z, Fong O, Bowler JC, Terada S, Sparks FT, Szabo GG, Farrell JS, Berg J, Daigle TL, Tasic B, Dimidschstein J, Fishell G, Losonczy A, Zeng H, Soltesz I. Alternating sources of perisomatic inhibition during behavior. Neuron. 2021 03 17; 109(6):997-1012.e9 ...
If there is no Gene record for this gene and organism, perform an All databases search with the gene name, product name, symbol, or accession number. For names, include the organism in the search to find the most relevant results, for example: Cytochrome c AND bullfrog[orgn] AND mrna[filter ...
Že po samem imenu (samotar) se lahko sklepa, da je ta vrsta pajka redko agresivna, zato so dejanski ugrizi relativno redki. Pajek bo ugriznil človeka v primeru, če se ga bo dotaknil (zato so pogosti ugrizi na roki) ali kakorkoli drugače pritisnil del telesa, kot npr. pri oblačenju ali obuvanju.[6][7] Večina ugrizov je nenevarnih brez nekroze. Resnost ugriza je odvisna predvsem od prejete količine toksina in zdravstvenega stanja človeka.[7] Navkljub temu manjše število ugrizov povzroči spekter simptomov, kolektivno znanih pod imenom loksoscelizem. Obstajata dve vrsti slednjega, in sicer kožni (kutani) ter sistemski (viscerokutani) loksoscelizem. Glede na to, da vključuje tudi morebitne poškodbe organov, lahko privede ugriz tudi do smrti; ogrožene skupine so otroci pod 7 let starosti, starejši ljudje in osebe z oslabljenim imunskim sistemom.[8] Sam ugriz je navadno neboleč, vendar lahko skozi čas nastane rana premera od 5-30 cm. Mesto ugriza postane boleče in srbeče po 2-8 ...
Get access to the latest Shift of Origin prepared with IIT JEE course curated by Sachin Rana on Unacademy to prepare for the toughest competitive exam.
Seme Paradajza BALKONSKA ZVEZDA Cena je za pakovanje od 500 semena. Idealan za vas balkon ili terasu. Ova velikih plodova, rana paradajz sorta
"Rana catesbeiana". AmphibiaWeb. University of California, Berkeley. Archived from the original on April 5, 2020. Retrieved ... "Rana berlandieri". AmphibiaWeb. University of California, Berkeley. Archived from the original on June 5, 2020. Retrieved ... "Rana blairi". AmphibiaWeb. University of California, Berkeley. Archived from the original on October 16, 2019. Retrieved ...
Phylogeny of the New World True frogs (Rana. Molecular Phylogenetics and Evolution 34:299-314. "Rana catesbeiana". Integrated ... The American bullfrog (Rana catesbeiana), often simply known as the bullfrog in Canada and the United States, is an aquatic ... The northern leopard frog (Rana pipiens)) is a species of leopard frog from the true frog family native to parts of Canada and ... The Columbia spotted frog (Rana luteiventris) is a North American species of frog. It is a medium-sized frog reaching lengths ...
Rana catesbeiana), started in Thailand in the 1990s. China imposed a ban, for exporting legs of Rana tigerina. Largest frogs' ... Flores Nava, A. (2005). "Rana catesbeiana". Cultured Aquatic Species Information Programme. FAO Fisheries and Aquaculture ... Rana tigrina is mostly solitary and nocturnal in nature. They inhabit holes and bushes near permanent water sources. The frog ... Fugler, Charles M. (April 1985). "Proposed management of the Indian bull frog, Rana tigrina, exclusive to Bangladesh". Food and ...
"Rana catesbeiana". AmphibiaWeb. University of California, Berkeley. Archived from the original on April 5, 2020. Retrieved ... "Southern Leopard Frog (Rana sphenocephala)". Texas Parks & Wildlife Department. Archived from the original on March 9, 2020. ... "Rana berlandieri". AmphibiaWeb. University of California, Berkeley. Archived from the original on June 5, 2020. Retrieved ... "Rana blairi". AmphibiaWeb. University of California, Berkeley. Archived from the original on October 16, 2019. Retrieved ...
Phylogeny of the New World True Frogs (Rana. Molecular Phylogenetics and Evolution 34:299-314. "Rana catesbeiana". Integrated ... The American bullfrog (Rana catesbeiana), often simply known as the bullfrog in Canada and the United States, is an aquatic ... The wood frog (Rana sylvatica) has a broad distribution over North America, extending from the southern Appalachians to the ... The northern leopard frog (Rana pipiens)) is a species of Leopard frog from the true frog family native to parts of Canada and ...
Rana Catesbeiana): An attack on the biodiversity of Mexico? La introducción y el cultivo de la rana toro (Rana catesbeiana). ¿ ... Moyle, PB (1 January 1973). "Effects of introduced bullfrogs, Rana catesbeiana, on the native frogs of the San Joaquin Valley, ... "Rana catesbeiana". The Animal Diversity Web, The Regents of the University of Michigan. University of Michigan Museum of ...
"Rana catesbeiana". Utah Division of Wildlife Resources. Archived from the original on May 19, 2017. Retrieved May 19, 2017. " ... Rana catesbeiana) - not a native species Arizona toad (Bufo microscaphus) Canyon tree frog (Hyla arenicolor) Columbia spotted ... Rana clamitans) - not a native species New Mexico spadefoot toad (Spea multiplicata) Northern leopard frog (Rana pipiens) ... "Rana clamitans". Utah Division of Wildlife Resources. Archived from the original on May 19, 2017. Retrieved May 19, 2017. "Spea ...
I Rana catesbeiana." Journal of Comp Physiology 160(1987): (4):477-89. McClelland, BE., W. Wilczynski, and AS. Rand. Department ...
2004). "Rana catesbeiana". IUCN Red List of Threatened Species. 2004. Retrieved 2007-06-12.old-form url Unofficial English ... Retrieved 2007-06-12.old-form url Per Frost (2007). Given as Rana plancyi in Yang (2001) and older records, and as Rana ... range and the range of Rana amurensis is not known with certainty. Jae-Young Song (2008). "Rana coreana". IUCN Red List of ... Matsui, M. (2004). "Rana chosenica". IUCN Red List of Threatened Species. 2004. Retrieved 2007-06-12.old-form url Per Frost ( ...
Rana sylvatica); bullfrogs (Rana catesbeiana); green frogs (Rana clamitans); northwestern salamanders (Ambystoma gracile); ... The most common amphibians recognized were frogs (Rana and Hyla). Specific species of reptiles and amphibians prey include: ...
The American bullfrog (Rana catesbeiana, Salish: ɫmɫam̓aá), often simply known as the bullfrog in Canada and the United States ... CS1 maint: discouraged parameter (link) "Rana catesbeiana". Integrated Taxonomic Information System. Retrieved February 6, 2006 ... The northern leopard frog (Rana pipiens) is a species of leopard frog from the true frog family native to parts of Canada and ... The Columbia spotted frog (Rana luteiventris, Salish: ɫmɫam̓aá) is a North American species of frog. It is a medium-sized frog ...
The bullfrog (Rana catesbeiana) crouches down with eyes closed and head tipped forward when threatened. This places the ... Aquatic species such as the American bullfrog (Rana catesbeiana) normally sink to the bottom of the pond where they lie, semi- ... The annual global trade in the American bullfrog (Rana catesbeiana), mostly farmed in China, varies between 1200 and 2400 ... Genomes of Xenopus laevis, X. tropicalis, Rana catesbeiana, Rhinella marina, and Nanorana parkeri have been sequenced and ...
"Inheritance of the Call of the Bullfrog, Rana catesbeiana." Bulletin of the Southern California Academy of Sciences 95.2 (1996 ...
Bee, M (2002). "Territorial male bullfrogs (Rana catesbeiana) do not assess fighting ability based on size-related variation in ... Howard, R (1978). "The evolution of mating strategies in bullfrog, Rana catesbeiana". Evolution. 32 (4): 850-871. doi:10.2307/ ... Hetherington, T. E. (1994). "Sexual differences in the tympanic frequency responses of the American bullfrog (Rana catesbeiana ... Tsuji, H.; Lue, K. Y. (2000). "The reproductive ecology of female Rana (Limnonectes) kuhlii, a fanged frog of Taiwan, with ...
Rana catesbeiana, Preface, p. xiii). Knapp, W. W. (2008-05-28). "Bullfrog - Rana catesbeiana". The Frogs and Toads of Georgia. ... Some authorities use the scientific name, Lithobates catesbeiana, although others prefer Rana catesbeiana. The specific name, ... especially Rana catesbeiana". Herpetologica. 19 (2): 151. Emlen, Stephen T (1968). "Territoriality in the bullfrog, Rana ... Herps of Texas: Rana catesbeiana British Columbia Frog Watch Program: Bull Frog Fact Sheet Bullfrog at the Global Invasive ...
"Species Profile - Rana catesbeiana - Canyonlands National Park (CANY) - Present". National Park Service. Archived from the ... "Species Profile - Rana pipiens - Canyonlands National Park (CANY) - Present". National Park Service. Archived from the original ...
Sex differences in the middle ear of the bullfrog (Rana catesbeiana). Brain, Behavior and Evolution, 61:91-101. R.R., Capranica ... Three populations of primary auditory fibers in the bullfrog (Rana catesbiana): their peripheral origins and frequency ...
Rana catesbeiana). Amino acid sequences of pancreatic polypeptide, oxyntomodulin, and two glucagon-like peptides". The Journal ...
Family: Ranidae Rana catesbeiana (LC) List of amphibians of Hispaniola AmphibiaWeb 2012 AmphibiaWeb. Information on amphibian ...
Two American bullfrogs (Rana catesbeiana) were used as experimental subjects in the flight experiment. The bullfrog was chosen ...
... rana catesbeiana)". Journal of Comparative Psychology. 115 (1): 68-82. doi:10.1037/0735-7036.115.1.68. PMID 11334221. Raynor, H ...
Rana] catesbeiana). Reptiles: Listed by iNaturalist: Anolis carolinensis (Green Anole), Hemidactylus turcicus (Mediterranean ...
"Genotoxicity of select herbicides on Rana catesbeiana tadpoles using alkaline single-cell gel DNA electrophoresis (Comet) assay ...
They may also feed on juvenile American bullfrogs (Rana catesbeiana), but they are unable to consume adults; in fact, adult ... This subspecies avoids brackish marsh areas because its preferred prey, the California red-legged frog (Rana draytonii), cannot ... Adult snakes feed primarily on California red-legged frogs (Rana draytonii), which are federally listed as threatened. ...
The earliest documented case of the disease chytridiomycosis was an American bullfrog (Rana catesbeiana) collected in 1978. The ... The frog Rana muscosa, for example, has been found to have very low concentrations of violacein on its skin, yet the ... An example of probiotic application is in the species Rana muscosa in Sierra Nevada; individuals treated with the probiotic J. ... Rana pipiens) to clear the infection in about 15% of cases. Although many declines have been credited to the fungus B. ...
Rana catesbeiana)". The Journal of Experimental Biology. 205 (Pt 8): 1161-9. PMID 11919275. Angstadt JD, Grassmann JL, ...
Cardini, F. (1974). Specializations of the Feeding Response of the Bullfrog, Rana catesbeiana, for the Capture of Prey ... Rana sylvatica, new species, p. 282). Regosin J.V., Windmiller B.S., Reed J.M. (2003). "Terrestrial habitat use and winter ... LeConte J (1824). ""Remarks on the American species of the Genera Hyla and Rana ". Ann. Lyceum Nat. Hist. New-York". [sic]. 1: ... Hillis D.M., Wilcox T.P. (2005). "Phylogeny of the New World true frogs (Rana)". Mol. Phylogenet. Evol. 34 (2): 299-314. doi: ...
... of central chemoreception during fictive gill and lung ventilation in an in vitro brainstem preparation of Rana catesbeiana". ...
Rana catesbeiana, Rhacophorus leucomystax and Rana limnocharis.[27] ...
Rana [Lithobates] catesbeiana, North American bullfrog (2017)[49]. *Rhinella marina, Cane toad (2018)[50] ...
Rana catesbeiana). 8 other amphibians occur in this area and may be present. 35 mammals may be present including bobcat (Felis ...
RanaRana catesbeianaRana clamitans Rangifer Salix †Selaginella †Shepherdia †Shepherdia argentea Sorex †Sorex hoyi Sphaerium ... Eldredgeops rana †Encrinurus †Endoceras †Erieopterus †Favosites †Flexicalymene †Flexicalymene croneisi †Flexicalymene ...
Rana catesbeiana Cascades frog -- Rana cascadae Columbia spotted frog -- Rana luteiventris Oregon spotted frog -- Rana pretiosa ... Green frog -- Rana clamitans Northern leopard frog -- Rana pipiens Pacific chorus frog -- Pseudacris regilla = Pacific Treefrog ... Hyla regilla or Pseudacris regilla) Northern red-legged frog -- Rana aurora Coastal tailed frog -- Ascaphus truei Rocky ...
RanaRana catesbeianaRana pipiens Rangifer †Rangifer tarandus Raphitoma Reithrodontomys Reteporella Retusa Rhinobatos ...
RanaRana catesbeianaRana pipiens †Ranellina †Ranellina sulcata Rangifer †Rangifer tarandus Raphitoma †Raphitoma georgei † ...
Rana catesbeiana). All of these species are commonly found in the lowlands of Puerto Rico. Of the eight reptilian families ...
Phylogeny of the New World True Frogs (Rana. Molecular Phylogenetics and Evolution 34:299-314. "Rana catesbeiana". Integrated ... The American bullfrog (Rana catesbeiana), often simply known as the bullfrog in Canada and the United States, is an aquatic ... The foothill yellow-legged frog (Rana boylii) is a small-sized (3.72-8.2 cm) frog from the Rana genus in the family Ranidae. ... "Rana cascadae-Distribution". Amphibiaweb. Retrieved January 2, 2012. Robert N. Fisher and Ted J. Case, 2003 "Rana boylii". ...
Frogs & Toads of Georgia: Pig Frog Animal Diversity Web: Rana grylio Amphibian Species of the World: Rana grylio Hammerson; et ... Lithobates catesbeiana). Pig frogs grow to a snout to vent length (SVL) of 3.25 to 5.5 in (8.3 to 14.0 cm). They are known for ... Rana grylio, new species). Media related to Lithobates grylio at Wikimedia Commons Data related to Pig frog at Wikispecies. ... 2004). "Rana grylio". IUCN Red List of Threatened Species. 2004. Retrieved 10 May 2006.old-form url Database entry includes a ...
Rana catesbeiana), river frogs (Rana heckscheri), spring peeper treefrogs (Pseudacris crucifer), Carolina anole lizards (Anolis ...
RanaRana catesbiana - lapsus calami of Rana catesbeianaRana pipiens Rangia †Rangia cuneata Rangifer †Rangifer tarandus ...
RanaRana catesbeianaRana clamitans †Rana pipiens †Rana sylvatica †Regina †Regina grahami Reithrodontomys †Reithrodontomys ...
Italian agile frog Rana latastei Perez's frog Rana perezi Common frog Rana temporaria Discoglossidae Mediterranean painted frog ... They are listed here by family Anura Ranidae Bullfrog Lithobathes catesbeiana (introduced) Pool frog Pelophylax lessonae ... Italian pool frog Pelophylax bergeri Marsh frog Pelophylax ridibunda Agile frog Rana dalmatina Italian stream frog Rana italica ...
Rana catesbeiana (American bullfrog) Acridotheres tristis (common myna) Columba livia (rock dove) Corvus splendens (house crow ...
... endemic Hylarana baramica Hylarana chalconota Hylarana erythraea Hylarana nicobariensis Odorrana hosii Rana catesbeiana - ...
RanaRana catesbeianaRana pipiens Reithrodontomys Rhineura Salvadora Scaphiopus †Sespia Sorex †Sorex cinereus Spea ...
... rana catesbeiana MeSH B01.150.900.090.180.708.240 - rana esculenta MeSH B01.150.900.090.180.708.310 - rana pipiens MeSH B01.150 ... 180.708.360 - rana ridibunda MeSH B01.150.900.090.180.708.420 - rana temporaria MeSH B01.150.900.090.608 - urodela MeSH B01.150 ...
RanaRana catesbiana - lapsus calami of Rana catesbeianaRana clamitans - or unidentified comparable form †Rana palustris † ... Rana pipiens †Rana sylvatica - or unidentified comparable form Rangia Rangifer †Rangifer tarandus Ranzania †Retinella Retusa † ...
Rana clamitans), wood frog (Rana sylvatica), pickerel frog (Rana palustris), bullfrog (Rana catesbeiana), gray tree frog (Hyla ... The blue-spotted salamander (Ambystoma laterale) and northern leopard frog (Rana pipiens) are uncommon, but likely are breeders ...
Rana catesbeiana Bullfrog, American Bullfrog. Subgenus: Aquarana. family: Ranidae Taxonomic Notes: This species was placed in ... Rana catesbeiana Shaw, 1802. American Bullfrog. Gary S. Casper1. Russ Hendricks2. 1. Historical versus Current Distribution. ... Historically, American bullfrogs (Rana catesbeiana; hereafter in this account referred to as bullfrogs) had one of the largest ... Rana aurora; Oregon, Kiesecker and Blaustein, 1997a, 1998); the apparently now extinct Vegas Valley leopard frog (Rana fisheri ...
In the Rana catesbeiana group of XXX. In the equivalent Rana (Rana) clamitans group of Dubois, 1987 "1986", Alytes, 5: 41, in ... Rana catesbeiana Bullfrog, American Bullfrog. Subgenus: Aquarana. family: Ranidae Taxonomic Notes: This species was placed in ... AmphibiaWeb recommends the optional use of these subgenera to refer to these major species groups, with names written as Rana ( ... 2016) recognized subgenera within Rana for the major traditional species groups, with Lithobates used as the subgenus for the ...
Lithobates catesbeianus, Rana catesbeiana. Return to the Amphibians homepage Return to the Actions homepage ... Rana catesbeiana). Schloegel et al. 2009 Biological Conservation. Letter from Dr. Peter Daszak. 2010. Letter from Dr. Whit ... Rana catesbeiana) into California. The report details the harm done to Californias wildlife by the bullfrogs and acknowledges ... Rana sierrae and Rana muscosa; Rachowicz et al. 2006). Different strains of the chytrid fungus exist, and thus further influx ...
Input and output characteristics of collision avoidance behavior in the frog Rana catesbeiana.. Yamamoto K1, Nakata M, Nakagawa ...
Ontogeny of regulation of gill and lung ventilation in the bullfrog, Rana catesbeiana.. Burggren W, Doyle M. ... Rana catesbeiana (n = 101, body mass 40 mg-90 g). Ventilatory frequencies in unanesthetized, unrestrained animals were ...
Citation: Wilczynski, Walter (1981)."Afferents to the midbrain auditory center in the bullfrog, Rana catesbeiana ." The Journal ...
Rana catesbeiana Cell Type. barrier epithelial cell Cellular Component. intermediate filament cytoskeleton plasma membrane ... John E. Michaels, Patricia A. Brown (2010) CIL:10441, Rana catesbeiana, barrier epithelial cell. CIL. Dataset. https://doi.org/ ...
Rana catesbeiana by isselee from Crestock Stock Photos ... Rana catesbeiana, looking at camera, white background, animal ... Image Description: American bullfrog or bullfrog - Rana catesbeiana Camera Data: NIKON D3X ...
Rana catesbeiana (American Bullfrog). The American bullfrog is native to the Southeastern, and far western regeions of North ...
Experimental evidence that the bullfrog (Rana catesbeiana) is a potential carrier of chytridiomycosis, an emerging fungal ... To test the susceptibility of bullfrogs (Rana catesbeiana) to amphibian chytridiomycosis, groups of captive bred, recently ... By demonstrating that R. catesbeiana is likely to be an efficient carrier of this pathogen, our experimental data add weight to ...
Majji S, LaPatra S, Long SM, Sample R, Bryan L, Sinning A, Rana catesbeiana virus Z (RCV-Z): a novel pathogenic ranavirus. Dis ... A mass die-off of wild North American bullfrog (Rana catesbeiana) larvae was discovered in a 1,000-m2 pond in western Japan. ... North American bullfrog (Rana catesbeiana) metamorphs infected with ranavirus RCV-JP. A) Necrosis of distal extremities (arrows ... North American bullfrog (Rana catesbeiana) metamorphs infected with ranavirus RCV-JP. A) Necrosis of distal extremities (arrows ...
Tail biopsies obtained from premetamorphic Rana catesbeiana tadpoles were exposed to 5 and 50 mg/L nitrate (NO3-N) and 0.5 and ... Thyroid hormone receptor β (TRβ) and Rana larval keratin type I (RLKI), both of which are TH-responsive gene transcripts, were ... Thyroid hormone receptor β (TRβ) and Rana larval keratin type I (RLKI), both of which are thyroid hormone responsive gene ... Tail biopsies obtained from premetamorphic Rana catesbeiana tadpoles were exposed to 5 mg/L and 50 mg/L nitrate (NO3-N) and 0.5 ...
Passive avoidance learning in bull frogs rana catesbeiana grass frogs rana pipiens and toads bufo americanus. Psychological ... Induced spawning of curimbata (Prochilodus affinis) with use of hypophyseal raw extract of bull frog (Rana catesbeiana). ... Rna synthesis during thyroxin hormone induced metamorphosis in bull frogs rana catesbeiana inst radioautography. Biochemical & ... Occurrence of yellow bull frogs rana catesbeiana in central pennsylvania usa. Proceedings of the Pennsylvania Academy of ...
Rana catesbeiana) alimentados com dietas contendo própolis Histology of kidney, liver and intestine of bullfrog tadpoles (Rana ... Histologia do rim, fígado e intestino de girinos de rã-touro (Rana catesbeiana) alimentados com dietas contendo própolis ... catesbeiana) fed with diets containing propolis. Luis Ricardo Romero Arauco Marta Verardino De Stéfani Laura Satiko Okada ...
Cases of buccal myiasis in the Bullfrog (Rana cates beiana Shaw, 1802), with larvae of Notochaeta sp. aldrich, 1916 (Diptera: ...
Glycan-Binding Profile and Cell Adhesion Activity of American Bullfrog (Rana catesbeiana) Oocyte Galectin-1. Author(s): Sarkar ... Title: Glycan-Binding Profile and Cell Adhesion Activity of American Bullfrog (Rana catesbeiana) Oocyte Galectin-1 ... Keywords: American bullfrog (Rana catesbeiana), blood type-A hexasaccharide, cell adhesion activity, frontal affinity ... Keywords:American bullfrog (Rana catesbeiana), blood type-A hexasaccharide, cell adhesion activity, frontal affinity ...
Structure and Immunological Function of Lymphomyeloid Organs in the Bullfrog, RanaCatesbeiana. ... RanaCatesbeiana. In: Hildemann W.H., Benedict A.A. (eds) Immunologic Phylogeny. Advances in Experimental Medicine and Biology, ...
Na-K-activated adenosinetriphosphatase and sodium transport in larval Rana catesbeiana Public Deposited ...
Characterization of the expression and function of ,em,Rana catesbeiana,/em, HSP30 and ,em,Xenopus laevis,/em, HSP27. ... br /,,br /, The present study examined the expression and function of two amphibian sHsps, namely, ,em,Rana catesbeiana,/em, ... Anne Mulligan Tuttle (2006). Characterization of the expression and function of ,em,Rana catesbeiana,/em, HSP30 and ,em,Xenopus ... br /,,br /, The molecular chaperone function of ,em,Rana,/em, HSP30 was also studied. Recombinant ,em,Rana,/em, HSP30 was found ...
Rana catesbeiana). Acta Zool. Mex [online]. 2006, vol.22, n.3, pp.01-10. ISSN 2448-8445. ...
Physiological Preparation of Hair Cells from the Sacculus of the American Bullfrog (Rana catesbeiana) ...
Rana catesbeiana, a rare mutation of a normally green frog caused by a lack of yellow pigment in the frogs skin. Mendocino ... Rana, Rana catesbeiana, rare, United States, unusual, USA, water, wildlife ... Blue American bullfrog, Rana catesbeiana, a rare mutation of a normally green frog caused by a lack of yellow pigment in the ...
Rana catesbeiana), Rana catesbeiana. From AllRefer.coms library of over millions of free images, photos & pictures. ... Bullfrog (Rana catesbeiana). (Rana catesbeiana). Bullfrog in water. Thumbnail, 72 dpi-web quality. File size approximately 50K ...
AUDIO: coming soon. Habitat: Large adult American Bullfrogs are highly aquatic and are generally found at large, permanent bodies of water such as large, deep lakes, reservoirs, and backwaters of large rivers. Smaller individuals and juveniles can be found along smaller wetlands, but typically remain in close proximity to larger bodies of water. Because larvae take multiple years to complete metamorphosis, tadpoles need deep, permanent bodies of water that do not freeze or dry up.. Natural History: Adult males are territorial and can be aggressive in defending their territory. This species is primarily active at night and a generalist predator that consumes a wide range of prey, including invertebrates, snakes, small mammals, and even birds. Unlike most other tadpoles, American Bullfrog tadpoles can secrete toxins from their skin that makes them distasteful, and as such, can be found in habitats where fish are abundant. During winter months, adults and juveniles bury into mud at the bottoms of ...
The Impact of Rana Catesbeiana in Arizona. 1023 Words , 4 Pages. legs. The frogs competed with the other native species with ... Worldwide Rana catesbeiana has driven over one-hundred native species of frogs to extinction (Save The Frogs! et al. 2013). ...
Rana catesbeiana. Together they form a unique fingerprint. * Rana catesbeiana Medicine & Life Sciences ... The authors have detached cilia from the olfactory epithelium of the bullfrog, Rana catesbeiana, via a calcium shock and ... The authors have detached cilia from the olfactory epithelium of the bullfrog, Rana catesbeiana, via a calcium shock and ... The authors have detached cilia from the olfactory epithelium of the bullfrog, Rana catesbeiana, via a calcium shock and ...
... Author Sasso-Cerri, Estela ... Testosterone-immunopositive primordial germ cells in the testis of the bullfrog, Rana catesbeiana. Login ... in the present study, testosterone location in the testes of Rana catesbeiana was investigated immunohistochemically during ... Thus, besides acting as stem cells, PG cells of R. catesbeiana could exert an androgen regulatory role during seasonal ...
Home » Explore Data » Species Rana catesbeiana was found by 4horange on 2017-05-11 ...
Rana catesbeiana. Together they form a unique fingerprint. * Rana catesbeiana Medicine & Life Sciences ... The complete amino acid sequence of prolactin from the bullfrog, Rana catesbeiana. In: General and Comparative Endocrinology. ... N2 - The complete amino acid sequence of prolactin (PRL) from an amphibian species, the bullfrog (Rana catesbeiana), has been ... AB - The complete amino acid sequence of prolactin (PRL) from an amphibian species, the bullfrog (Rana catesbeiana), has been ...
Latina: Rana catesbeiana. English: Bullfrog. Deutsch: Amerikanischer Ochsenfrosch. Latina: Ambystoma mexicanum. English: ...
  • Ontogeny of regulation of gill and lung ventilation in the bullfrog, Rana catesbeiana. (nih.gov)
  • Gill and lung ventilatory frequencies at 20-23 degrees C were recorded in five different larval stages and in the adults of the bullfrog, Rana catesbeiana (n = 101, body mass 40 mg-90 g). (nih.gov)
  • A mass die-off of wild North American bullfrog ( Rana catesbeiana ) larvae was discovered in a 1,000-m 2 pond in western Japan. (cdc.gov)
  • North American bullfrog (Rana catesbeiana) metamorphs infected with ranavirus RCV-JP. (cdc.gov)
  • Cases of buccal myiasis in the Bullfrog (Rana cates beiana Shaw, 1802), with larvae of Notochaeta sp. (scielo.br)
  • The glycan-binding profile of a β-galactoside-binding 15 kDa lectin (Galectin-1) purified from the oocytes of the American bullfrog, Rana catesbeiana, was studied using 61 pyridyl-aminated oligosaccharides by frontal affinity chromatography. (eurekaselect.com)
  • Blue American bullfrog, Rana catesbeiana, a rare mutation of a normally green frog caused by a lack of yellow pigment in the frog's skin. (photoshelter.com)
  • The authors have detached cilia from the olfactory epithelium of the bullfrog, Rana catesbeiana, via a calcium shock and partially purified them in high yield (226 ± 19 μg protein/frog, n = 14) by sucrose gradient centrifugation. (elsevier.com)
  • The complete amino acid sequence of prolactin (PRL) from an amphibian species, the bullfrog (Rana catesbeiana), has been determined and conserved residues and domains were analyzed by sequence comparison of PRLs from 15 species of five major vertebrate classes. (elsevier.com)
  • Cholecystokinin immunoreactivity in the digestive tract of bowfin (Amia calva), bluegill (Lepomis macrochirus), and bullfrog (Rana catesbeiana). (duke.edu)
  • The distribution of the intestinal hormone, cholecystokinin (CCK), was studied in the gastrointestinal tract of a holostean fish, the bowfin (Amia calva), and compared to a teleostean fish, the bluegill (Lepomis macrochirus), and an amphibian, the bullfrog (Rana catesbeiana), using an antiserum specific for the carboxyl terminal tetrapeptide of CCK in an unlabeled biotin-avidin immunoperoxidase procedure. (duke.edu)
  • RC-RNase is a pyrimidine-guanine sequence-specific ribonuclease and a sialic-acid-binding lectin purified from Rana catesbeiana (bullfrog) oocytes. (ntnu.edu.tw)
  • Developing bullfrog (Rana catesbeiana) eggs in New Jersey. (gettyimages.com)
  • Captive farming of this species as a food source, and also of the American bullfrog (Rana catesbeiana), started in Thailand in the 1990s. (wikipedia.org)
  • Daszak P, Strieby A, Cunningham AA, Longcore JE, Brown CC, Porter D (2004) Experimental evidence that the bullfrog ( Rana catesbeiana ) is a potential carrier of chytridomycosis, an emerging fungal disease of amphibians. (springer.com)
  • Ficetola GF, Coïc C, Detaint M, Berroneau M, Lorvelec O, Miaud C (2007a) Pattern of distribution of the American bullfrog Rana catesbeiana in Europe. (springer.com)
  • 2016) recognized subgenera within Rana for the major traditional species groups, with Lithobates used as the subgenus for the Rana palmipes group. (amphibiaweb.org)
  • Premetamorphic Rana (Lithobates) catesbeiana tadpoles were exposed to physiological concentrations of T4, T3, or 17-beta-estradiol (E2) through water bath immersion. (uvic.ca)
  • At the general meeting held by the International Epizootic Office in May 2008, iridoviruses of amphibians were added to the list of pathogens of wildlife that should be monitored ( www.oie.int/aac/eng/Publicat/Cardsenglish/Ranavirus%20card_final.pdf , www.oie.int/eng/normes/fcode/en_chapitre_2.4.2.htm , and www.jcu.edu.au/school/phtm/PHTM/frogs/otherdiseases-viruses.htm ). (cdc.gov)
  • Ranavirus in Wood Frogs (Rana Sylvatica): potential sources of transmission within and between ponds. (cefas.co.uk)
  • Adult snakes feed primarily on California red-legged frogs ( Rana draytonii ), which are federally listed as threatened. (wikipedia.org)
  • To test the susceptibility of bullfrogs (Rana catesbeiana) to amphibian chytridiomycosis, groups of captive bred, recently metamorphosed bullfrogs were inoculated with zoospores of Batrachochytrium dendrobatidis, the causative agent of chytridiomycosis, and assayed for clinical and pathological signs of infection. (columbia.edu)
  • The effects of activin A and follistatin on the release of follicle-stimulating hormone (FSH), luteinizing hormone (LH), growth hormone (GH) and prolactin (PRL) from dispersed pituitary cells of the bullfrogs Rana catesbeiana were studied. (elsevier.com)
  • We report the causative agent, Batrachochytrium dendrobatidis , in North American bullfrogs ( Rana catesbeiana ) farmed for the international restaurant trade. (cdc.gov)
  • Mass deaths occurred at a large rearing facility for North American bullfrogs ( Rana catesbeiana ), 46 km from Montevideo, Uruguay. (cdc.gov)
  • Tail biopsies obtained from premetamorphic Rana catesbeiana tadpoles were exposed to 5 and 50 mg/L nitrate (NO 3 -N) and 0.5 and 5 mg/L nitrite (NO 2 -N) in the absence and presence of 10 nM T 3 . (frontiersin.org)
  • The names "frog" and "toad" are used throughout this issue in order to use popular names for two generalized groups, but other than the Rana/Bufo stereotypes mentioned above, the names do not apply well, and in some cases are not only misleading, but also both names may be applied to the same species. (emporia.edu)
  • No dead adults of R . catesbeiana or other amphibian species were found. (cdc.gov)
  • AmphibiaWeb recommends the optional use of these subgenera to refer to these major species groups, with names written as Rana (Aquarana) catesbeiana, for example. (amphibiaweb.org)
  • By demonstrating that R. catesbeiana is likely to be an efficient carrier of this pathogen, our experimental data add weight to the hypothesis that this host species is important in the spread of chytridiomycosis, particularly by commercial activities. (columbia.edu)
  • It was concluded that galectin-1 from R. catesbeiana oocytes possesses different and rare glycan-binding properties from typical members in galectin family. (eurekaselect.com)
  • Thyroid hormone receptor β (TRβ) and Rana larval keratin type I (RLKI), both of which are TH-responsive gene transcripts, were measured using quantitative real time polymerase chain reaction. (frontiersin.org)
  • Rana catesbeiana ribonuclease (RC-RNase) possesses tumor-specific cytotoxicity, which can be synergized by IFN-γ. (houstonmethodist.org)
  • R. catesbeiana oocyte galectin adhered to human rhabdomyosarcoma cells dose dependently and the activity was specifically cancelled by the neoglycoprotein. (eurekaselect.com)
  • This subspecies avoids brackish marsh areas because its preferred prey , the California red-legged frog ( Rana draytonii ), cannot survive in saline water . (wikipedia.org)
  • Frog spawn {Rana temporaria} just a 1-2 days old, backlit on lightbox, Cornwall, UK. (gettyimages.com)
  • Rana tigrina is mostly solitary and nocturnal in nature. (wikipedia.org)
  • Phylogenetic analysis showed that virus detected in this study, designated RCV-JP, showed greater similarity to TW07-440 virus than to other ranaviruses, including tadpole edema virus ( 5 ), frog virus 3 ( 6 ), and R . catesbeiana virus Z ( 7 ). (cdc.gov)
  • By using known AMP characteristics and common ¬AMP properties, we developed a high throughput bioinformatics approach predicated on the use of R. catesbeiana genome resources. (uvic.ca)
  • 001), with salamanders and semi-aquatic snakes encountered with greater frequency than expected in the food plots, Rana and Eumeces in the forest plots, and Scincella lateralis and Storeria dekayi in the oil plots (Table 4). (thefreedictionary.com)
  • Thus, besides acting as stem cells, PG cells of R. catesbeiana could exert an androgen regulatory role during seasonal spermatogenesis. (unifesp.br)
  • China imposed a ban, for exporting legs of Rana tigerina. (wikipedia.org)
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. (photoshelter.com)
  • Aquatic frogs such as the leopard frog (Rana pipiens) and American bullfrog (Rana catesbeiana) typically hibernate underwater. (scientificamerican.com)
  • The American bullfrog ( Rana catesbeiana ) is its common name . (kiddle.co)
  • The bullfrog is known as Rana toro in Spanish countries and Ouaouaron in French speaking countries. (kiddle.co)
  • Catesbeiana came from Mark Catesby , an English naturalist , who first discovered the bullfrog. (kiddle.co)
  • Bullfrog (Rana catesbeiana) tadpoles collected from a reference site exhibited normal developmental features, with many completing metamorphoses. (ttu.edu)
  • The record for longest jump by an American bullfrog ( Rana catesbeiana ) recorded in a scientific paper is a little over 4 feet. (frogsaregreen.org)
  • We used PCR to sample for the presence of Bd in live individuals from nine seemingly healthy populations of the lowland leopard frog as well as four of the American bullfrog R. catesbeiana (a putative vector for Bd) from Arizona. (elsevier.com)
  • Here's how it worked: Two bullfrogs ( Rana catesbeiana ) were selected to go to space. (theguardian.com)
  • The species potential predators include opossums, raccoons, skunks, bullfrogs ( Rana Catesbeiana ) and mad brown thrashers ( Toxostoma rufum ). (weebly.com)
  • The American bullfrog's genus name comes from the Latin word rana, which means frog. (kiddle.co)
  • Say was en route to the American West as part of the scientific detachment (under Major Stephen Long) of the Yellowstone Expedition of General Henry Atkinson. (illinois.edu)
  • Garwood, J. M. and Welsh, H. H. Jr. Ecology of the Cascades frog ( Rana cascadae ) and interactions with garter snakes and nonnative trout in the Trinity Alps Wilderness, California (PDF) . (ca.gov)
  • Winter field surveys in the last decade have documented die-offs in populations of the lowland leopard frog Rana yavapaiensis with chytridiomycosis. (elsevier.com)
  • Barbara House, a WR&E permitted rehabilitator found an injured Bull frog (Rana catesbeiana) in the street near her house. (wildlifecenteroftexas.org)