Acetabularia: A genus of green algae found in the Mediterranean and other warm seas.Chlorophyta: A phylum of photosynthetic EUKARYOTA bearing double membrane-bound plastids containing chlorophyll a and b. They comprise the classical green algae, and represent over 7000 species that live in a variety of primarily aquatic habitats. Only about ten percent are marine species, most live in freshwater.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Nasturtium: A plant genus of the family BRASSICACEAE. Nasturtium is also used as a common name for TROPAEOLUM. The common name of watercress is also used for RORIPPA & TROPAEOLUM. This is the most popular of the edible cresses, is a hardy creeping perennial plant, native to Europe but extensively naturalized elsewhere in moist places.Seaweed: Multicellular marine macroalgae including some members of red (RHODOPHYTA), green (CHLOROPHYTA), and brown (PHAEOPHYTA) algae. They are widely distributed in the ocean, occurring from the tide level to considerable depths, free-floating (planktonic) or anchored to the substratum (benthic). They lack a specialized vascular system but take up fluids, nutrients, and gases directly from the water. They contain CHLOROPHYLL and are photosynthetic, but some also contain other light-absorbing pigments. Many are of economic importance as FOOD, fertilizer, AGAR, potash, or source of IODINE.Rhodiola: A plant genus of the family CRASSULACEAE. Members contain rhodioloside. This roseroot is unrelated to the familiar rose (ROSA). Some species in this genus are called stonecrop which is also a common name for SEDUM.WyomingBiodiversity: The variety of all native living organisms and their various forms and interrelationships.Marine Biology: The study of the origin, structure, development, growth, function, genetics, and reproduction of organisms which inhabit the OCEANS AND SEAS.Aquatic Organisms: Organisms that live in water.Reproductive Physiological Phenomena: Physiological processes, factors, properties and characteristics pertaining to REPRODUCTION.Potentilla: A plant genus of the family ROSACEAE. Members contain procyanidins and TANNINS.Acetabulum: The part of the pelvis that comprises the pelvic socket where the head of FEMUR joins to form HIP JOINT (acetabulofemoral joint).Commerce: The interchange of goods or commodities, especially on a large scale, between different countries or between populations within the same country. It includes trade (the buying, selling, or exchanging of commodities, whether wholesale or retail) and business (the purchase and sale of goods to make a profit). (From Random House Unabridged Dictionary, 2d ed, p411, p2005 & p283)Taxes: Governmental levies on property, inheritance, gifts, etc.Prescription Fees: The charge levied on the consumer for drugs or therapy prescribed under written order of a physician or other health professional.Philately: Study of stamps or postal markings. It usually refers to the design and commemorative aspects of the stamp.Great BritainGermanyMedicine, Arabic: Traditional Arabic methods used in medicine in the ARAB WORLD.Amoebozoa: A supergroup (some say phylum) of ameboid EUKARYOTES, comprising ARCHAMOEBAE; LOBOSEA; and MYCETOZOA.Euglenozoa: A large group of flagellated EUKARYOTES found in both free-living and parasitic forms. The flagella are present in pairs and contain unique paraxonemal rods.Eukaryota: One of the three domains of life (the others being BACTERIA and ARCHAEA), also called Eukarya. These are organisms whose cells are enclosed in membranes and possess a nucleus. They comprise almost all multicellular and many unicellular organisms, and are traditionally divided into groups (sometimes called kingdoms) including ANIMALS; PLANTS; FUNGI; and various algae and other taxa that were previously part of the old kingdom Protista.Giardia lamblia: A species of parasitic EUKARYOTES that attaches itself to the intestinal mucosa and feeds on mucous secretions. The organism is roughly pear-shaped and motility is somewhat erratic, with a slow oscillation about the long axis.Microsporidia: A phylum of fungi comprising minute intracellular PARASITES with FUNGAL SPORES of unicellular origin. It has two classes: Rudimicrosporea and MICROSPOREA.Toxoplasma: A genus of protozoa parasitic to birds and mammals. T. gondii is one of the most common infectious pathogenic animal parasites of man.Fishes: A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.Diving: An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Folklore: The common orally transmitted traditions, myths, festivals, songs, superstitions, and stories of all peoples.BrazilEthnology: The comparative and theoretical study of culture, often synonymous with cultural anthropology.Potassium: An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.Action Potentials: Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.Runaway Behavior: A behavioral response manifested by leaving home in order to escape from threatening situations. Children or adolescents leaving home without permission is usually implied.Membrane Potentials: The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).Sodium: A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.Potassium Channels: Cell membrane glycoproteins that are selectively permeable to potassium ions. At least eight major groups of K channels exist and they are made up of dozens of different subunits.Enterocolitis, Pseudomembranous: An acute inflammation of the INTESTINAL MUCOSA that is characterized by the presence of pseudomembranes or plaques in the SMALL INTESTINE (pseudomembranous enteritis) and the LARGE INTESTINE (pseudomembranous colitis). It is commonly associated with antibiotic therapy and CLOSTRIDIUM DIFFICILE colonization.Glutamate Dehydrogenase: An enzyme that catalyzes the conversion of L-glutamate and water to 2-oxoglutarate and NH3 in the presence of NAD+. (From Enzyme Nomenclature, 1992) EC 1.4.1.2.Clostridium difficile: A common inhabitant of the colon flora in human infants and sometimes in adults. It produces a toxin that causes pseudomembranous enterocolitis (ENTEROCOLITIS, PSEUDOMEMBRANOUS) in patients receiving antibiotic therapy.Drug Users: People who take drugs for a non-therapeutic or non-medical effect. The drugs may be legal or illegal, but their use often results in adverse medical, legal, or social consequences for the users.Terminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Molecular Sequence Data: 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.PseudouridineTranscranial Magnetic Stimulation: A technique that involves the use of electrical coils on the head to generate a brief magnetic field which reaches the CEREBRAL CORTEX. It is coupled with ELECTROMYOGRAPHY response detection to assess cortical excitability by the threshold required to induce MOTOR EVOKED POTENTIALS. This method is also used for BRAIN MAPPING, to study NEUROPHYSIOLOGY, and as a substitute for ELECTROCONVULSIVE THERAPY for treating DEPRESSION. Induction of SEIZURES limits its clinical usage.Pyramidal Tracts: Fibers that arise from cells within the cerebral cortex, pass through the medullary pyramid, and descend in the spinal cord. Many authorities say the pyramidal tracts include both the corticospinal and corticobulbar tracts.Motor Cortex: Area of the FRONTAL LOBE concerned with primary motor control located in the dorsal PRECENTRAL GYRUS immediately anterior to the central sulcus. It is comprised of three areas: the primary motor cortex located on the anterior paracentral lobule on the medial surface of the brain; the premotor cortex located anterior to the primary motor cortex; and the supplementary motor area located on the midline surface of the hemisphere anterior to the primary motor cortex.Research: Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)Electromyography: Recording of the changes in electric potential of muscle by means of surface or needle electrodes.PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Bulbo-Spinal Atrophy, X-Linked: An X-linked recessive form of spinal muscular atrophy. It is due to a mutation of the gene encoding the ANDROGEN RECEPTOR.

Classification of loops of lampbrush chromosomes according to the arrangement of transcriptional complexes. (1/41)

The arrangement of transcriptional units in the loops of lampbrush chromosomes from oocyte nuclei of urodele amphibia and from primary nuclei of the green alga Acetabularia have been studied in the electron microscope using spread preparations. Loops with different patterns of arrangement of matrix units (i.e. to a first approximation, transcriptional units) can be distinguished: (i) loops consisting of one active transcriptional unit; (ii) loops containing one active transcriptional unit plus additional fibril-free, i.e. apparently untranscribed, intercepts that may include 'spacer' regions; (iii) loops containing two or more transcriptional units arranged in identical or changing polarities, with or without interspersed apparent spacer regions. Morphological details of the transcriptional complexes are described. The observations are not compatible with the concept that one loop reflects one and only one transcriptional unit but, rather, lead to a classification of loop types according to the arrangement of their transcriptional units. We propose that the lampbrush chromosome loop can represent a unit for the coordinate transcription of either one gene or a set of several (different) genes.  (+info)

Temperature dependence of cycloheximide-sensitive phase of circadian cycle in Acetabularia mediterranea. (2/41)

The biochemical nature of the circadian regulatory system that controls many cellular activities is still unclear. Recent results obtained from the application of protein synthesis inhibitors to individual Acetabularia cells expressing circadian rhythms of photosynthesis indicate that some protein(s) must be synthesized on 80S ribosomes during a discrete part of each cycle to insure correct time-keeping. A comparative study of the effects of brief cycloheximide treatments on cells investigated at different temperature has revealed that the phase of cycloheximide sensitivity is 4-6 hr longer and occurs about 8 hr later in the cycle when cells are kept at 20 degrees rather than 25 degrees. Temperature is known to influence the function of the circadian regulatory system in Acetabularia, but the effect on frequency is small (Q10 approximately equal to 0.8) due to the existence of a temperature-compensating feature. The large effects of temperature observed here thus favor the interpretation that protein synthesis on 80S ribosomes, while providing an essential component of the circadian timing mechanism, does not itself generate the period of the photosynthesis rhythm.  (+info)

Whorl morphogenesis in the dasycladalean algae: the pattern formation viewpoint. (3/41)

The dasycladalean algae produce diverse whorled structures, among which the best known are the vegetative and reproductive whorls of Acetabularia acetabulum. In this paper, we review the literature pertaining to the origin of these structures. The question is addressed in terms of the necessary pattern-forming events and the possible mechanisms involved, an outlook we call the pattern formation viewpoint. The pattern-forming events involved in the morphogenesis of the vegetative and reproductive whorls of Acetabularia have been used to define five and six morphogenetic stages, respectively. We discuss three published mechanisms which account, at least in part, for the pattern-forming events. The mechanisms are mechanical buckling of the cell wall, reaction-diffusion of morphogen molecules along the cell membrane, and mechanochemical interactions between Ca2+ ions and the cytoskeleton in the cytosol. The numerous differences between these mechanisms provide experimental grounds to test their validity. To date, the results of these experiments point towards reaction diffusion as the most likely patterning mechanism. Finally, we consider the evolutionary origin of the vegetative and reproductive whorls and provide mechanistic explanations for some of the major evolutionary advances.  (+info)

Cytoplasmic induction of changes in the ultrastructure of the Acetabularia nucleus and perinuclear cytoplasm. (4/41)

The ultrasturcture of the cell nucleus and perinuclear cytoplasm in Acetabularia is quite different in young and old cells. When a nucleus of an old cell was implanted into the cytoplasm of a young cell the nucleus assumed the morphology typical of a young cell within less than 10 days. The cytoplasm of an old cell was able to induce the reverse change in an implanted nucleus from a young cell. This cytoplasmic induction of nuclear ageing appeared to proceed more rapidly than rejuvenation.  (+info)

Asymmetric subcellular mRNA distribution correlates with carbonic anhydrase activity in Acetabularia acetabulum. (5/41)

The unicellular green macroalga Acetabularia acetabulum L. Silva is an excellent system for studying regional differentiation within a single cell. In late adults, physiologically mediated extracellular alkalinity varies along the long axis of the alga with extracellular pH more alkaline along the apical and middle regions of the stalk than at and near the rhizoid. Respiration also varies with greater respiration at and near the rhizoid than along the stalk. We hypothesized that the apical and middle regions of the stalk require greater carbonic anhydrase (CA) activity to facilitate inorganic carbon uptake for photosynthesis. Treatment of algae with the CA inhibitors acetazolamide and ethoxyzolamide decreased photosynthetic oxygen evolution along the stalk but not at the rhizoid, indicating that CA facilitates inorganic carbon uptake in the apical portions of the alga. To examine the distribution of enzymatic activity within the alga, individuals were dissected into apical, middle, and basal tissue pools and assayed for both total and external CA activity. CA activity was greatest in the apical portions. We cloned two CA genes (AaCA1 and AaCA2). Northern analysis demonstrated that both genes are expressed throughout much of the life cycle of A. acetabulum. AaCA1 mRNA first appears in early adults. AaCA2 mRNA appears in juveniles. The AaCA1 and AaCA2 mRNAs are distributed asymmetrically in late adults with highest levels of each in the apical portion of the alga. mRNA localization and enzyme activity patterns correlate for AaCA1 and AaCA2, indicating that mRNA localization is one mechanism underlying regional differentiation in A. acetabulum.  (+info)

The circadian rhythm in photosynthesis in Acetabularia in the presence of actinomycin D, puromycin, and chloramphenicol. (6/41)

Anucleate Acetabularia crenulata shows a circadian rhythm in photosynthesis. In this study, an oxygen electrode was employed to measure this photosynthetic rhythm in the presence and absence of the inhibitors, actinomycin D, chloramphenicol, and puromycin. High concentrations of the inhibitors were used: actinomycin D, 20-40 micrograms ml-1; puromycin, 30 and 100 micrograms ml-1; and chloramphenicol, 250 micrograms ml-1. The effectiveness of these inhibitors on protein synthesis was also measured under the same conditions used for the determination of rhythmicity. In spite of large effects of all three inhibitors on the incorporation of 14C leucine, no effect on the period or the phase of the photosynthetic rhythm was observed. The higher concentration of puromycin and chloramphenicol produced toxic effects which were expressed as a reduction in the amount of photosynthesis, but rhythmicity was still apparent. After 3 or 4 days' exposure to actinomycin, Acetabularia became resistant to its effect. Recovery was also observed in the ability to incorporate leucine. The implications of these results for theories of the basic oscillator responsible for circadian rhythmicity are discussed.  (+info)

Growth of the nuclear envelope in the vegetative phase of the green alga Acetabularia. Evidence for assembly from membrane components synthesized in the cytoplasm. (7/41)

The primary nucleus of the green alga Acetabularia grows about 25,000-fold in volume while it is separated from the endoplasmic reticulum and the whole cytoplasm by a special paranuclear cisterna of a vacuolar labyrinthum system which shows only very few (two to six per square micrometer) and small (ca. 40-120 nm in diamter) fenestrations. The nuclear envelope does not bear polyribosomes, nor do they occur in the entire zone intermediate between the nuclear envelope and the paranuclear cisterna. It is suggested that this special form of nuclear envelope growth takes place by assembly from cytoplasmically synthesized proteins that are translocated across the paranuclear cisterna in a nonmembrane-structured form.  (+info)

Expression of V-ATPase proteolipid subunit of Acetabularia acetabulum in a VMA3-deficient strain of Saccharomyces cerevisiae and its complementation study. (8/41)

The function of the translation products of six different cDNAs for Acetabularia V-ATPase proteolipid subunit (AACEVAPD1 to AACEVAPD6) was examined using a Saccharomyces cerevisiae VMA3-deficient strain that lacked its own gene for one of the proteolipid subunits of V-ATPase. Expression of the cDNAs in the strain revealed that four cDNAs from the six complemented the proton transport activity into the vacuole, visualized by fluorescence microscopy. The vacuolar-membrane-enriched fractions from the four transformants showed cross-reactivity with antibodies against the subunits a and A of S. cerevisiae V-ATPase. Two translation products from the other two cDNAs were demonstrated not to be localized in vacuolar membranes, and thus could not complement the function of the VMA3-deficient strain. As the primary structures deduced from the former four cDNAs are similar but clearly different from those of the latter two, the latter two translation products may not be able to substitute for theVMA3 gene product.  (+info)

Acetabularia is a genus of green algae, specifically of the Polyphysaceae family, Typically found in subtropical waters, Acetabularia is a single-celled organism, but gigantic in size and complex in form, making it an excellent model organism for studying cell biology. In form, the mature Acetabularia resembles the round leaves of a nasturtium, is 0.5 to 10 cm tall and has three anatomical parts: a bottom rhizoid that resembles a set of short roots; a long stalk in the middle; and a top umbrella of branches that may fuse into a cap. The single nucleus of Acetabularia is located in the rhizoid, and allows the cell to regenerate completely if its cap is removed. The caps of two Acetabularia may also be exchanged, even from two different species.[citation needed] In addition, if a piece of the stem is removed, with no access to the nucleus in the rhizoid, this isolated stem piece will also grow a new cap. In the 1930s-1950s Joachim Hämmerling conducted experiments in which he demonstrated ...
Amputated apices from vegetative wildtype cells of the uninucleate green alga Acetabularia acetabulum can differentiate a reproductive structure of cap in the absence of the nucleus (Hammerling, J. (1932) Biologisches Zentralblatt 52, 42-61). To define the limits of the ability of wildtype cells to control reproductive differentiation, we determined when during development apices from wildtype cells first acquired the ability to make a cap in the absence of the nucleus and, conversely, when cells with a nucleus lost the ability to recover from the loss of their apices. To see when the apex acquired the ability to make a cap without the nucleus, we removed apices from cells varying either the developmental age of the cells or the cellular volume left with the apex. Cells must have attained the adult phase of development before the enucleate apex could survive amputation and make a cap. Apices removed from cells early in adult growth required more cell volume to make a cap without the nucleus ...
Stich, H. Trypaflavin und Ribonucleinsäure. Untersucht an Mäusegeweben, Condylostoma spec. und Acetabularia mediterranea. Naturwissenschaften 38, 435-436 (1951). https://doi.org/10.1007/BF00630746. Download ...
Algae Details | 2708 | Class: Chlorophyceae | Strain: Polyphysa clavata | Media: Dasycladales Seawater Medium | Origin: Okinawa, Japan | Description of Location: | Collection: J. Hí_mmerling (1956) | Isolation: | Isolator Number: | Deposition: S. Berger (12/6/96) | Relatives: MPI-Zb Polyphysa clavata | Also Known As: Acetabularia (Polyphysa) clavata (Yamada); Parvocaulis clavata (Berger 2003); Acetabularia clavata | Notes: (Berger & Kaever 1992); [Curators note: Berger & Kaever 1992 follow Bailey et al. 1976 in separating Polyphysa and Acetabularia along morphological lines. Alternatively, Silva et al. 1996 (p. 890-4) acknowledge the separation but concomitantly interpret some of the supporting molecular data (Olsen et al. 1994) as reason to invalidate the genus Polyphysa. They conclude that these species represent a genus that cannot be called Polyphysa and suggest recognizing only one genus, i.e., Acetabularia, until the picture is clarified. UTEX has accepted these cultures from the Max-Planck
... - Algas verdes. CLOROFITAS. * Acetabularia acetabulum * Caulerpa racemosa * Caulerpa peltata (Caulerpa chemnitzia) * Caulerpa webbiana * Cladophora. Se
additional source Fredericq, S., T. O. Cho, S. A. Earle, C. F. Gurgel, D. M. Krayesky, L. E. Mateo-Cid, A. C. Mendoza-González, J. N. Norris, and A. M. Suárez. 2009. Seaweeds of the Gulf of Mexico, Pp. 187-259 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico-Origins, Waters, and Biota. I. Biodiversity, pp. 187-259. Texas A&M Univ. Press. [details] ...
additional source Fredericq, S., T. O. Cho, S. A. Earle, C. F. Gurgel, D. M. Krayesky, L. E. Mateo-Cid, A. C. Mendoza-González, J. N. Norris, and A. M. Suárez. 2009. Seaweeds of the Gulf of Mexico, Pp. 187-259 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico-Origins, Waters, and Biota. I. Biodiversity, pp. 187-259. Texas A&M Univ. Press. [details] ...
Dr. Joachim Hämmerling ForMemRS (9 March 1901 - 5 August 1980) was a pioneering Danish-German biologist funded by Nazi Germany who determined that the nucleus of a cell controls the development of organisms. His experimentation with the green algae Acetabularia provided a model subject for modern cell biological research, and proved the existence of morphogenetic substances, or mRNP. Joachim August Wilhelm Hämmerling was born on 9 March 1901 in Berlin. He was educated at the University of Berlin and University of Marburg. He received his doctorate in 1924. From 1924 to 1931 he was a research assistant at the Kaiser Wilhelm Institute for Biology, and from 1931 to 1940 a lecturer. In 1940 he became Director of the German-Italian Institute of Marine Biology. In 1942 he became an associate professor of marine biology at the University of Berlin, before becoming the head of the Kaiser Wilhelm Institute for Biology in Langenargen am Bodensee in 1946. From 1949-1970 he served as the Director of the ...
The ultrastructure of twO kinds of transcription ally active chromatin, the lampbrush chromosome loops and the nucleoli from amphibian oocytes and primary nuclei of the green alga Acetabularia, has been examined after manual isolation and dispersion in low salt media of slightly alkaline pH using various electron microscopic staining techniques (positive staining, metal shadowing, negative staining, preparation on positively charged films, etc.) and compared with the appearance of chromatin from various somatic cells (hen erythrocytes, rat hepatocytes, ClIltured murine sarcoma cells) prepared in parallel. While typical nucleosomes were revealed with all the techniques for chromatin from the latter three cell system, no nucleosomes were identified in either the lampbrush chromosome structures or the nucleolar chromatin. Nucleosomal arrays were absent not only in maximally fibril-covered matrix units but also in fibril-free regions between transcriptional complexes, including the apparent spacer ...
You can do the math. Lets think optimum conditions for SWD development. A single female can lay around 350 eggs during her lifetime, about 15 per day. The egg to adult phase of the life cycle takes as little as 6 days. So, one female in one day can result in 15 more adults 6 days later, and, during those 6 days, she will have laid another 90 eggs. 6 days after that, those 90 eggs will all be adults. Half of the 105 adults will be females, capable of laying ~350 eggs during their lifetimes...thats 18,375 eggs. A typical life span for SWD is 3 to 9 weeks and there are estimated to be about 10 generations per year in the US, depending on climate.. ...
Scrabble Solver word definintion for ACETABULA - Any cup-shaped structure, esp. a sucker, The socket of the hipbone, into which the head of the femur fits,
Plants in the juvenile phase of growth generally are easier to propagate vegetatively than plants that have reached the adult phase (Preece, 2002). Cuttings taken from adult shoots of plants can be rooted, but the frequency of success is low, especially with woody plants. Likewise, researchers have had great challenges when attempting to micropropagate adult forms of many woody species. In fact, the change from the juvenile to adult phase is considered to be the most serious constraint to rooting cuttings (Howard, 1990) and micropropagation of shrubs and trees. Most of the difficulty experienced in rooting mature shoots seems to be caused by their altered physiology, but can also be related to greater contamination with microorganisms and viruses than with juvenile forms.. Juvenile explants are usually most readily established in vitro, grow and proliferate at a more rapid rate, and are more rootable than adult material. This is especially true with tree species where mlcropropagatlon of adult ...
The Lyb-2 cell-surface alloantigens of the mouse are selectively and perhaps exclusively expressed in the B lymphocyte lineage, but not on antibody- forming cells. Thus if the Lyb-2 molecule is concerned in specific B cell function, it must participate in the generative phase of the antibody response. Accordingly, monoclonal Lyb-2 antibody was found to depress the plaque- forming cell (PFC) response to sheep erythrocytes in 5-d Mishell-Dutton assays when added within the first 3 d of culture, but not later. The rate of PFC generation was not affected, signifying an absolute reduction in the number of PFC generated. Because reduction of PFC counts by Lyb-2 antibody was not affected by exclusion of Lyt-2(+) T cells, it is unlikely that the reduction depends on augmented suppression by T cells. Augmented B cell- mediated suppression is also unlikely, because the PFC response of serial combinations of congenic Lyb-2.1 and Lyb-2.2 cells, in the presence of monoclonal Lyb-2.1 antibody, was reduced ...
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Pretre, J. G. (Jean Gabriel), b. 1769 (artist) and Risso, A. (Antoine), 1777-1845 (author), "Chrysoma mediterranea and various depictions of Scyllarus arctus larva from Rissos Histoire naturelle des principales productions de lEurope méridionale," AMNH Research Library , Digital Special Collections, accessed October 26, 2020, https://lbry-web-007.amnh.org/digital/items/show/18683 ...
Conversion chart for acetabulum (small cup) (Ancient Roman Measure (Liquid and Dry), historical units of volume). Instant units and measurements conversion for ancient, medieval and historical units.
PNEI REVIEW - Approccio integrato alla cura dello scompenso cardiaco ed aritmie ( Lapproccio integrato nella cura dello scompenso cardiaco e delle aritmie prevede il riconoscimento dei fattori ostacolanti il processo di guarigione del paziente e la definizione di un percorso di cura che incontri le esigenze del paziente stesso. Accanto alla terapia convenzionale, occorre controllare i fattori che potrebbero far precipitare il delicato equilibrio cardiovascolare (corretta gestione dellipertensione e dei tradizionali fattori di rischio cardiologici; attenzione alluso di farmaci antinfiammatori non steroidei e calcio antagonisti) e fornire al malato delle adeguate indicazioni sul suo stile di vita: cessazione del fumo e delluso di alcool; corretta alimentazione (dieta mediterranea) ed attività fisica aerobica per raggiungere un adeguato peso; restrizione salina ed idrica se necessari; utilizzare tecniche mente-corpo per una adeguata gestione dello stress e della depressione.)
PNEI REVIEW - Approccio integrato alla cura dello scompenso cardiaco ed aritmie ( Lapproccio integrato nella cura dello scompenso cardiaco e delle aritmie prevede il riconoscimento dei fattori ostacolanti il processo di guarigione del paziente e la definizione di un percorso di cura che incontri le esigenze del paziente stesso. Accanto alla terapia convenzionale, occorre controllare i fattori che potrebbero far precipitare il delicato equilibrio cardiovascolare (corretta gestione dellipertensione e dei tradizionali fattori di rischio cardiologici; attenzione alluso di farmaci antinfiammatori non steroidei e calcio antagonisti) e fornire al malato delle adeguate indicazioni sul suo stile di vita: cessazione del fumo e delluso di alcool; corretta alimentazione (dieta mediterranea) ed attività fisica aerobica per raggiungere un adeguato peso; restrizione salina ed idrica se necessari; utilizzare tecniche mente-corpo per una adeguata gestione dello stress e della depressione.)
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The ability of adolescents to access safe and effective new products for HIV prevention and treatment is optimised by adolescent licensure at the same time these products are approved and marketed for adults. Many adolescent product development programmes for HIV prevention or treatment products may proceed simultaneously with adult phase III development programmes. Appropriately implemented, this strategy is not expected to delay licensure as information regarding product efficacy can often be extrapolated from adults to adolescents, and pharmacokinetic properties of drugs in adolescents are expected to be similar to those in adults. Finally, adolescents enrolled in therapeutic HIV prevention and treatment research can be considered adults, based on US Food and Drug Administration (FDA) regulations and the appropriate application of state law. The FDA permits local jurisdictions to apply state and local HIV/sexually transmitted infection minor treatment laws so that adolescents who are ...
Acromegaly is caused by the hypersecretion of growth hormones or somatotrophic hormones during adult phase. This type of patient has a gorilla like appearance with huge hands and legs.. Cushing syndrome is caused by overproduction of ACTH or adrenocorticotrophic hormone.. Deficiency of growth hormone causes dwarfism. People suffering from this disease are very small (midget).. Cretinism refers to hyperthyroidism in an infant or child. It is an iodine deficiency syndrome.. ...
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1. Cup shaped; cuplike. 2. Relating to the c. cavity or acetabulum. [G. kotyle, a small cup, + eidos, appearance] * * * cot·y·loid kät əl .ȯid adj of or relating to an acetabulum * * * cot·y·loid (kotґə loid) [Gr. kotyloeides cup shaped] 1
Supplement to Applied Radiology December 2012, sponsored by Philips Dr. Muzaffar is a Fellow and Dr. Osman is the Program Director of the Division of Nuclear...
created by superposition of the most distal part of the medial wall of the acetabulum and the tip of the anterior/posterior horn of acetabulum ...
Amanifar, N., Taghavi, M., Izadpanah, K., Babaei, G., (2014). Phytopathologia Mediterranea 53(2), 318-327. Mediterranean Phytopathological Union, Firenze, Italy. English language. ...
Novel glycine oxidase (GlyOX) from Marinomonas mediterranea depends on cysteine tryptophilquinone (CTQ) and catalyzes the oxidative deamination of glycine to produce a glyoxylate, ammonia, and hydrogen peroxide. M. mediterranea GlyOX genes (goxA and goxB) were cloned and recombinant GlyOX was heterologously expressed by E. coli. The purification of recombinant GlyOX was carried out by metal affinity and DEAE-Toyopearl 650M column chromatographies. M. mediterranea GlyOX was homotetramic with a molecular mass of 76kDa and showed optimum activity around 30°C and at pH 5.0, and stability below 50°C and between pH 5.0 to 9.0. M. mediterranea GlyOX shows a strict substrate specificity toward glycine, and the Michaelis constant for glycine was 0.5mM. M. mediterranea GlyOX could determine the quantity of glycine in human serum and human blood plasma with high sensitivity. This study revealed the catalytic and structural properties of M. mediterranea GlyOX with high substrate specificity. ...
Abscisic acid (ABA) has been implicated as a key component in water-deficit-induced responses, including those triggered by drought, NaCl, and low- temperature stress. In this study a role for ABA in mediating the NaCl-stress-induced increases in tonoplast H1-translocating ATPase (V-ATPase) and Na1/H1 antiport activity in Mesembryanthemum crystallinum, leading to vacuolar Na1 sequestration, were investigated. NaCl or ABA treatment of adult M. crystallinum plants induced V-ATPase H1 transport activity, and when applied in combination, an additive effect on V-ATPase stimulation was observed. In contrast, treatment of juvenile plants with ABA did not induce V-ATPase activity, whereas NaCl treatment resulted in a similar response to that observed in adult plants. Na1/H1 antiport activity was induced in both juvenile and adult plants by NaCl, but ABA had no effect at either developmental stage. Results indicate that ABA-induced changes in V-ATPase activity are dependent on the plant reaching its adult phase,
Ontogenetic changes in the relative growth of males and females of the spider crab Maja brachydactyla, a species with terminal moult and determinate growth, were analysed and related to their reproductive (maturity) status. Based on the allometry of cheliped size, two morphometric groups of males separated juvenile and adult phases. Juvenile males also showed two growth phases, immature (smaller ones, without spermatophores) and adolescent (with spermatophores). Size at gonad maturity in males (estimated as CL50) was 96.2 mm carapace length (CL). Histological analysis of males showed that ,60% of morphometric juveniles and 100% of morphometric adults had spermatophores in the gonad. Females begin to develop gonads 2-3 months after the terminal moult. Size at morphometric maturity was estimated comparing two methodologies: the size at 50% maturity (CL50) and the median size of adult cohorts (CLM). In all cases the CLM size at maturity was greater than that resulting from the CL50 method, and, in ...
Redox-regulation of receptors and transcription factors are important for lymphocyte activation, differentiation and apoptosis. Thioredoxin (Trx) is a key redox-regulating protein and oxidative stress sensor operating in synergy with Trx-reductase and protein disulfide isomerase (PDI). The expression of Trx, PDI, and the Trx-regulated transcription-factor Pax5 were analyzed in a panel of human B cell lines and were compared with that of the Bcl-2 family proteins, also redox-controlled. The panel included representative cells from various stages: FLEB14-4 (pro-B), REH and NALM-6 (pre-B), Rael and Daudi (small mature B), U-698 and NC0467.3 (B-blasts), LP-1, U-1996, and U-266 (plasma cells). We found a significant congruence and co-variation of Trx and Bcl-2 levels in the B-lineage, with high expression levels in early stages (pro-B and pre-B) and in the late stage representing terminally-differentiated plasma cells, whereas mid-stage small resting B cells showed a very low expression. PDI ...
I had a job interview today for a position that had already been filled which was strange. It was set up through Elaine, who I work with while interning at the Elizabeth Foundation. After she learned I had lost my job at the Princeton Review she made it her personal crusade to do find me some kind…
CT w/ iv contrast shows enlargement of the left pelvic floor musculature with mild sclerosis of the adjacent acetabulum compared with the right.
Photosynthesis is a fundamental process sustaining heterotrophic organisms at all trophic levels. Some mixotrophs can retain functional chloroplasts from food (kleptoplasty), and it is hypothesized that carbon acquired through kleptoplasty may enhance trophic energy transfer through increased host growth efficiency. Sacoglossan sea slugs are the only known metazoans capable of kleptoplasty, but the relative fitness contributions of heterotrophy through grazing, and phototrophy via kleptoplasts, are not well understood. Fitness benefits (i.e. increased survival or growth) of kleptoplasty in sacoglossans are commonly studied in ecologically unrealistic conditions under extended periods of complete darkness and/or starvation. We compared the growth efficiency of the sacoglossan Elysia viridis with access to algal diets providing kleptoplasts of differing functionality under ecologically relevant light conditions. Individuals fed Codium fragile, which provide highly functional kleptoplasts, nearly ...
Engineering of mixed-valence (MV) radical cations and intermolecular complexes based on pi-extended tetrathiafulvalenes (TTFs) is central for the development of organic conductors. On another front, redox-controlled dimerization of radical cations has recently been recognized as an important tool in supramolecular chemistry. Here we show that pi-extended TTFs based on the indenofluorene core, prepared by Horner-Wadsworth-Emmons reactions, undergo reversible and stepwise one-electron oxidations and that the detectable, intermediate radical cation forms remarkably strong intermolecular MV ([neutral.cation]) and pi-dimer ([cation.cation]) complexes with near-infrared radical cation absorptions. The radical cation itself seems to be a so-called Class III MV species in the Robin-Day classification. The formation of MV dimers was corroborated by ESR spectroelectrochemical studies, revealing two slightly different ESR signals upon oxidation, one assigned to the MV dimer and the other to the cation monomer.
The class Bolidophyceae includes a single genus Bolidomonas and two species (Bolidomonas pacifica and B. mediterranea) described from marine waters.. The Bolidophyceae was established by Guillou et al. (1999), as a new class of picoplankton isolated from both the equatorial Pacific and the Mediterranean Sea. One genus, Bolidomonas, and two species, Bolidomonas pacifica and B. mediterranea, have been described. Guillou et al. also proposed a subspecies of B. pacifica: B. pacifica var. eleuthra. Bolidomonas pacifica swims differently than B. mediterranea, and their flagella are oriented differently with respect to one another (Fig. 1). B. pacifica swims in a consistently straight pattern, and the flagella are oriented at a 90° angle with respect to one another. In contrast, B. mediterranea demonstrates frequent changes in swimming direction, and flagella are oriented at a 180° angle with respect to one another ...
The phylum Echinodermata is well known for its extensive regenerative capabilities. Although there are substantial data now available that describe the histological and cellular bases of this phenomenon, little is known about the regulatory molecules involved. Here, we use an immunochemical approach to explore the potential role played by putative members of the transforming growth factor-β (TGF-β) family of secreted proteins in the arm regeneration process of the crinoid Antedon mediterranea. We show that a TGF-β-like molecule is present in normal and regenerating arms both in a propeptide form and in a mature form. During regeneration, the expression of the mature form is increased and appears to be accompanied by the appearance of an additional isoform. Immunocytochemistry indicates that TGF-β-like molecules are normally present in the nervous tissue and are specifically localized in both neural elements and non-neural migratory cells, mainly at the level of the brachial nerve. This ...
The acetabulum (plural: acetabula) is the large cup-shaped cavity on the anterolateral aspect of the pelvis that articulates with the femoral head to form the hip joint. Gross anatomy All three bones of the pelvis (the ilium, ischium, and pubis...
Purpose: Previous experiments have demonstrated that IFN-γ promotes conjunctival epithelial apoptosis and goblet cell loss. The objective of this study was to compare epithelial growth and differentiation in conjunctival epithelial cultures initiated from IFN-γ deficient mice and wild type (WT) C57BL/6 mice.. Methods: Primary conjunctival epithelial cultures were established in parallel from fresh tissue explants of forniceal conjunctiva dissected from IFN-γ gene knockout (IFN-γKO) and WT C57BL/6 age- and gender-matched mice. Cultures were incubated with Keratinocyte SFM (KSFM) medium supplemented with 80 ng/mL murine EGF and 3% fetal bovine serum. Cell proliferation was measured by WST-1 assay. Explant outgrowth areas were quantified using Celltrace Calcein Green AM staining and Nikon Elements software analysis. Keratin 7 (K7) and MUC5AC were immunodetected by immunofluorescent staining. K7 and MUC5AC mRNA expression were measured by quantitative real time PCR.. Results: Seventy-seven ...
Article of periodic. published at : Ecologia mediterranea. Editor : Millesime : 1988, vol. 14, no1-2 [pp. 155-183]. Bibliographic references : 3 p. ...
In the Enoteca di Palo, we entered while the owner was being interviewed by Public TV and was in the process of describing the merits of the Monte di Grazia Tintore no less! We were amazed. The interview over, Lou DiPalo (we think it was he) took us through his range and we immediately found a white we had never heard of: Mantonico. A not so quick Google throws up the slightly worrying information that Mantonico (or Montonico) Nero is nothing else by a synonym for Gaglioppo but fortunately the white Mantonico is something completely independent - Un vitigno misterioso, sicuramente proveniente dalla Grecia, deriverebbe, infatti, dalla voce "mantonikos", che significa indovino, profeta. Se ne trovano traccia nelle cronache cinquecentesche di G. Marafioti, come uva tipica calabrese. È un vino bianco di carattere, che si esprime nel tempo e che accompagna splendidamente la cucina mediterranea, ma si abbina bene anche a quella orientale ...
The unicellular green alga is becoming an invaluable super model tiffany livingston system in plant biology. presented into our algal appearance strains bring about recombinant protein deposition degrees of up to 0.25?% of the full total cellular protein. Furthermore, in ...
Vitapulse - Adducted and internally of the femur forward from its position on the dorsum of the ilium, but it could be placed in the acetabulum.
Veja Foto de stock de Chlamydomonas Are Common Unicellular Green Algae With Two Flagella Sem. Encontre fotografias premium e de alta resolução na Getty Images.
The Mediterranea Club will require pilots to visit the following 48 airports below. Ive added a new airline to go with this in anticipation of Alitalia ceasing to be a Delta codeshare. The new airline is Alitalia Historical DVA (AZD) which includes flights to two of these airports. Be sure to type in .update in the ACARS chat box to get the latest schedule and flights ...
ICD-10-PCS code 0Q9430Z for Drainage of Right Acetabulum with Drainage Device, Percutaneous Approach is a medical classification as listed by WHO unde
Introduction Indications Exposure of the inner surface of the pelvis from the sacroiliac joint to the pubic symphysis. Exposure of the anterior and medial surfaces of the acetabulum, which exposes anterior column fractures. Disadvantages Difficult approac
Tóth, Renáta and Alonso, Maria F. and Bain, Judith M. and Vágvölgyi, Csaba and Erwig, Lars-Peter and Gácser, Attila (2015) Different Candida parapsilosis clinical isolates and lipase deficient strain trigger an altered cellular immune response. Frontiers in microbiology, 6. No. 1102. ISSN 1664-302X Tóth, Renáta and Tóth, Adél and Papp, Csaba and Jankovics, Ferenc and Vágvölgyi, Csaba and Alonso, Maria F. and Bain, Judith M. and Erwig, Lars-Peter and Gácser, Attila (2014) Kinetic studies of Candida parapsilosis phagocytosis by macrophages and detection of intracellular survival mechanisms. Frontiers in microbiology, 5. No. 633. ISSN 1664-302X ...
1E2F: Insights Into the Phosphoryltransfer Mechanism of Human Thymidylate Kinase Gained from Crystal Structures of Enzyme Complexes Along the Reaction Coordinate
Acetabularia, algae. *Caulerpa, algae[58]. *Gromia sphaerica, amoeba. *Thiomargarita namibiensis is the largest bacterium, ...
Dasycladaceae: Acetabularia, and Batophora. Diplomonadida: Hexamita inflata, Diplomonadida ATCC50330, and ATCC50380. List of ... 5-bisphosphate carboxylase/oxygenase of two species of Acetabularia and the occurrence of unusual codon usage". Molecular & ...
Hämmerling began growing Acetabularia in laboratories in the 1930s. There he discovered that the plant had one cell and the ... Because of his work with Acetabularia, when a new species of the plant was discovered in the Pacific Ocean in the 1970s, it was ... In his experiments, he removed the nucleus from a specific species of Acetabularia called A. crenulata and grafted it onto the ... Then he began studying the roles of the nucleus and cytoplasm by experimenting with the Acetabularia. In 1938 while working at ...
Pars acetabularis of musculus iliotibialis lateralis absent. Pars caudalis of musculus caudofemoralis absent. Wing with 12 ...
Mummert H, Gradmann D (1991). "Action potentials in Acetabularia: measurement and simulation of voltage-gated fluxes". Journal ... such as the cardiac action potential and the action potential in the single-cell alga Acetabularia, respectively. Although ...
Mummert H, Gradmann D (1991). "Action potentials in Acetabularia: measurement and simulation of voltage-gated fluxes". Journal ...
Acetabularia, Batophora, Dasycladus, Neomeris, Cymopolia) Class Trentepohliophyceae Order Trentepohliales (e.g., Trentepohlia, ...
Other well-known members include Caulerpa, Codium, Acetabularia, Cladophora, Trentepohlia and Monostroma. The Ulvophytes are ...
Ube kinampay - purple yam; Dioscorea alata Ube- yam; Dioscorea alata other cash crops Acetabularia ambáng Chlorella Codium ...
... occurs in algae (e.g., Acetabularia acetabulum), fungi (hyphae) and plants (e.g. root hairs and pollen tubes). Tip ...
The thallus of the unicellular mermaid's wineglass, Acetabularia, can grow to several inches in length. The fronds of the ...
Ohhashi T, Katsu T, Ikeda M (1992). "Improvement of reconstitution of the Cl−-translocating ATPase isolated from Acetabularia ...
Family Polyphysaceae Mermaid's cup Acetabularia calyculus Lamouroux (Tropical Australia south to Adelaide, South Australia, and ...
Acetabularia. M.S. Voronin thoroughly studied the ontogenesis of Acetabularia and demonstrated that it was the initial stage in ...
It feeds on the algae Acetabularia acetabulum (from which it keeps the chloroplasts, that are able to continue photosynthesis ...
They feed on a broad food spectrum, including members of the genera Halimeda, Caulerpa, Udotea, Acetabularia and further ...
Improvement of reconstitution of the Cl--translocating ATPase isolated from Acetabularia acetabulum into liposomes and several ...
... as Acetabularia) to multicellular organisms, including early development in Drosophila. He proposed that morphogenetic fields, ...
... genetic information in eukaryotes had been established by Hämmerling in 1943 in his work on the single celled alga Acetabularia ...
Genomic analysis of Acetabularia acetabulum and Vaucheria litorea, the primary food sources of Elysia timida, has revealed that ...
Diplonts are: In archaeplastidans: some green algae (e.g., Cladophora glomerata, Acetabularia) In stramenopiles: some brown ...
... and Acetabularia as well as in the walls of some red algae, like Porphyra and Bangia. Xylans: Alginic acid: It is a common ...
Acetabularia acetabulum Madrepora verrucaria Madrepora turbinata Madrepora fungites Madrepora pileus Madrepora maeandrites ...
... acetabularia MeSH B02.080.300 --- caulerpa MeSH B02.080.344 --- chlamydomonas MeSH B02.080.344.650 --- chlamydomonas ...
In another experiment, Hämmerling inserted a nucleus from one species of Acetabularia into an intact Acetabularia of a ... doi:10.1007/978-3-642-46169-9_1. Cinelli, F. (1979). Acetabularia acetabulum (L.) Silva, Acetabularia parvula Solms-Laubach and ... Scholar references for Acetabularia NCBI taxonomy page for Acetabularia Search Tree of Life taxonomy pages for Acetabularia ... Acetabularia has been used to study circadian rhythms. [citation needed] Acetabularia species occasionally make their way into ...
In another experiment, Hämmerling inserted a nucleus from one species of Acetabularia into an intact Acetabularia of a ... doi:10.1007/978-3-642-46169-9_1. Cinelli, F. (1979). Acetabularia acetabulum (L.) Silva, Acetabularia parvula Solms-Laubach and ... Scholar references for Acetabularia NCBI taxonomy page for Acetabularia Search Tree of Life taxonomy pages for Acetabularia ... Acetabularia has been used to study circadian rhythms. [citation needed] Acetabularia species occasionally make their way into ...
Acetabularia crenulata J.V.Lamouroux, 1816). Published in AlgaeBase (from synonym Acetabularia caribaeum Lamarck, 1816). ... Acetabularia crenulata J.V.Lamouroux, 1816). To Encyclopedia of Life To Encyclopedia of Life (from synonym Acetabularia ... Acetabularia caraibica Kützing, 1856). Published in AlgaeBase (from synonym Acetabulum crenulatum (J.V.Lamouroux) Kuntze, 1891) ... Acetabularia crenulata J.V.Lamouroux, 1816) Guiry, M.D. & Guiry, G.M. (2018). AlgaeBase. World-wide electronic publication, ...
Our data suggest that internal cues, cell age and size, are used to regulate reproductive onset in Acetabularia acetabulum and ... Coordination of cellular events that precede reproductive onset in Acetabularia acetabulum: evidence for a loop in ... Amputated apices from vegetative wildtype cells of the uninucleate green alga Acetabularia acetabulum can differentiate a ... Coordination of cellular events that precede reproductive onset in Acetabularia acetabulum: evidence for a loop in ...
1976 in separating Polyphysa and Acetabularia along morphological lines. Alternatively, Silva et al. 1996 (p. 890-4) ... Acetabularia, until the picture is clarified. UTEX has accepted these cultures from the Max-Planck Institute fur Zellbiologie, ... Acetabularia clavata , Notes: (Berger & Kaever 1992); [Curators note: Berger & Kaever 1992 follow Bailey et al. ... Acetabularia (Polyphysa) clavata (Yamada); Parvocaulis clavata (Berger 2003); Acetabularia clavata. Notes:. (Berger & Kaever ...
Acetabularia acetabulum * Caulerpa racemosa * Caulerpa peltata (Caulerpa chemnitzia) * Caulerpa webbiana * Cladophora. Se ... Acetabularia acetabulum * Caulerpa racemosa * Caulerpa peltata (Caulerpa chemnitzia) * Caulerpa webbiana * Cladophora. Se ...
Acetabularia crenulata at SuriaLink M. D. Guiry & Wendy Guiry (2006-05-19). "Acetabularia crenulata J.V. Lamouroux". AlgaeBase ... Acetabularia crenulata, one of the many species known as mermaids wineglass, is a form of green alga generally found in ... Acetabularia crenulata in the NCBI Taxonomy Browser. ...
On the surface of the apical protoplast of growing cells of Acetabularia mediterranea structured fibrils are stainedwith the ... Anreicherung von Ribonucleinsäure in der Wuchszone vonAcetabularia mediterranea. Planta (Berl.)55, 22-37 (1960).Google Scholar ... Nucleo-cytoplasmic relationship in the development ofAcetabularia. Int. Rev. Cytol.2, 475 (1953).Google Scholar ... Neuere Versuche über Polarität und Differenzierung beiAcetabularia. Biol. Zbl.74, 545 (1955).Google Scholar ...
Schulze, K. L., 1939, Cytologische Untersuchungen anAcetabularia mediterranea undAcetabularia Wettsteinii. Arch. Protistenk.92. ... 1940, Transplantationsversuche zwischenAcetabularia mediterranea undcrenulata. Not. Ist. Biol. Rovigno2, Nr. 18.Google Scholar ... 1939a, Über die Bedingungen der Kernteilung und der Zystenbildung beiAcetabularia mediterranea. Biol. Z.59.Google Scholar ... Hämmerling, J., 1935, Über Genomwirkungen und Formbildungsfähigkeit beiAceta bularia. Roux Archiv132.Google Scholar ...
Acetabularia Name. Synonyms. Acetabulum Boehm.. Polyphisa Berthold, 1827. Polyphysa Lamarck, 1816. Homonyms. Acetabularia J.V. ... Acetabularia J.V.Lamouroux, 1812 Dataset GBIF Backbone Taxonomy Rank GENUS Published in N. Bull. Sci. Soc. Philom. Paris, 3 (63 ... Acetabularia (Berk.) Massee. Common names. Schirmalgen in German. カサノリ in Japanese. Bibliographic References. * Aphia2006, ...
The type species (holotype) of the genus Acetabularia is Acetabularia acetabulum (Linnaeus) P.C.Silva. ... Acetabularia calyculus J.V.Lamouroux. Classification: Empire Eukaryota. Kingdom Plantae. Subkingdom Viridiplantae. Infrakingdom ... Acetabularia suhrii Solms-Laubach 1895. Nomenclatural notes. According to Berger et al. (2003: 527), this species is frequently ... Oza, R.M. (1980). Meiosis in Acetabularia calyculus Quoy et Gaimard. In: Taxonomy of algae. (Desikachary, T.V. & Raja Rao, V.N ...
Revision history of "Acetabularia acetabulum". From MicrobeWiki, the student-edited microbiology resource ... Created page with ==Classification== Eukaryota; Chlorophyta; Dasycladophyceae; Dasycladales; Polyphysaceae; Acetabularia; ...
Acetabularia explanation free. What is Acetabularia? Meaning of Acetabularia medical term. What does Acetabularia mean? ... Looking for online definition of Acetabularia in the Medical Dictionary? ... Acetabularia. Also found in: Encyclopedia, Wikipedia. Acetabularia a genus of marine algae. Individuals may reach a size of 30 ... Acetabularia , definition of Acetabularia by Medical dictionary https://medical-dictionary.thefreedictionary.com/Acetabularia ...
... unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds ... ... Acetabularia mediterranea Cell Type. gamete Cellular Component. nucleus chloroplast plastid thylakoid membrane chloroplast ... At cyst formation in the giant unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently ... Ultrastructural features of the life cycle of Acetabularia I Gametogenesis. Proptoplasma 77, 313-319. ...
Figure 1. Acetabularia acetabulum. CC BY-NC-ND 2.0 CameliaTWU. If I asked you what was the experimental basis for the central ... Here is why: Acetabularia is such a large cell that it can be readily handled with ones hands. It can be amputated into pieces ... But the giant-celled algae, including Acetabularia, are high on this list. Of course, birds eggs are even larger and they are ... What is the current status of Acetabularia research? Work with this model organism has been helped greatly by manipulations ...
Acetabularia acetabulum (Linnaeus) P.C.Silva, 1952). Published in AlgaeBase (from synonym Acetabularia mediterranea J.V. ... To Global Biotic Interactions (GloBI) (from synonym Acetabularia subg. Acetabularia acetabulum (Linnaeus) P.C.Silva, 1952). To ... To Encyclopedia of Life (from synonym Acetabularia subg. Acetabularia acetabulum (Linnaeus) P.C.Silva, 1952). To Encyclopedia ... To PESI (from synonym Acetabularia subg. Acetabularia acetabulum (Linnaeus) P.C.Silva, 1952). To ITIS. ...
Acetabularia (Acetabularia) acetabulum (Linnaeus) P.C.Silva, 1952. Accessed through: Odido, M.; Appeltans, W.; BelHassen, M.; ... Acetabularia subg. Acetabularia acetabulum (Linnaeus) P.C.Silva, 1952. Accessed at: http://marinespecies.org/afremas/aphia.php? ...
RECONSTRU??O ACETABULAR EM DEFEITOS POR PAPROSKY TIPO III. Descrição: ABSTRACT Objectives: Severe pelvic deficiency presents a ... es acetabulares complexas realizadas entre 2006 e 2011. Esta s?rie inclui a curva de aprendizado do procedimento e tem um ...
Acetabularia acetabulumMedia: Dasycladales Seawater MediumOrigin: Island Mljet, South Dalmatia, Mediterranean SeaDescription of ... Location: Type Culture: NoCollection: H.G. Schweiger (1970)Isolation: Isolator Number: Acetabularia acetabulum line ... Acetabularia acetabulum. Upcoming Order Deadlines:. Orders for living algal strains placed after 5:00 PM CST on Wednesday, ... Isolator Number: Acetabularia acetabulum line 17. Deposition: S. Berger (12/6/96). Relatives: MPI- Zb. Also Known As: A. ...
Stable oxygen and carbon isotopes measured on Acetabularia crenulata. PANGAEA, https://doi.org/10.1594/PANGAEA.54084, In ... Acetabularia crenulata, δ18O. A. crenulata δ18O. ‰ PDB. Wefer, Gerold. Mass spectrometer VG Micromass 602. ... Acetabularia crenulata, δ13C. A. crenulata δ13C. ‰ PDB. Wefer, Gerold. Mass spectrometer VG Micromass 602. ... Wefer, Gerold (1985): Stable oxygen and carbon isotopes measured on Acetabularia crenulata. PANGAEA, https://doi.org/10.1594/ ...
... a kn1-like homeobox gene in Acetabularia acetabulum, undergoes developmentally regulated subcellular localization, Plant ... Elaboration of body plan and phase change during development of Acetabularia: how is the complex archi-tecture of a giant ... Axenic cultures of Acetabu-laria (Chlorophyta): a decontamination protocol with potential application to other algae ... As a way of studying how development is controlled in the unicellular green macroalga Acetabularia acetabulum, we used ...
Lhasa - Acetabularia. * Post a comment Miss Kittin & The Hacker - Lost Tracks Vol. 2. ...
... acetabularia quiz questions and answers pdf, online biology quiz, MCQs on acetabularia worksheets, learn animals growth and ... Acetabularia Multiple Choice Questions Online pdf eBooks Download. Learn acetabularia MCQs, online biology MCQ for test prep. ... MCQs on Acetabularia Quiz pdf Download. MCQ. Acetabularia is a kind of ... Free study guide is to practice acetabularia quiz online with MCQs to practice test questions with answers. Acetabularia Video ...
Acetabularia significantly differs from the other entries on this list in terms of its internal composition. As discussed ... Also known as Mermaids Wineglass, Acetabularia is a unique genus of mushroom-shaped algae that grows up to 10 centimeters (4 ... Yet despite dwarfing all the previous entries, Acetabularia spends most of its life with only a single, giant nucleus located ... There, they bud off into numerous spore-like reproductive cysts, ready to spread and give rise to new Acetabularia. ...
Die Wirkung von Strahlen auf Acetabularia. Six, Erich Page 598. Published Online: 06/02/2014 ...
Schnelle photoelektrische Effekte der Alge Acetabularia. Schilde, Claus Page 1369. Published Online: 06/02/2014 ...
  • Acetabularia is a genus of green algae, specifically of the Polyphysaceae family, Typically found in subtropical waters, Acetabularia is a single-celled organism, but gigantic in size and complex in form, making it an excellent model organism for studying cell biology. (wikipedia.org)
  • In the 19th century the same designation Acetabularia was proposed by George Edward Massee for a genus of fungi (now Cyphellopus), but this usage is obsolete and considered invalid as the algal name takes precedence. (wikipedia.org)
  • The caps of two Acetabularia may also be exchanged, even from two different species. (wikipedia.org)
  • The Acetabularia then produced a hybrid cap with characteristics of both species. (wikipedia.org)
  • citation needed] Acetabularia species occasionally make their way into the aquarium trade. (wikipedia.org)
  • However, they are suitable for a macroalgae display tank, and thus macroalgae suppliers often carry species of Acetabularia. (wikipedia.org)
  • Aceptado en febrero de Systematic Biology 54 6: A century of progress in the natural sciences, In older classification systems, it refers to a highly paraphyletic group of all the green algae within the green plants Viridiplantae and thus includes about 7, species of mostly algae photosynthetic eukaryotic organisms. (kemerescorttr.site)
  • citation needed] In addition to its gradient in specific mRNA molecules, Acetabularia exhibits concentration gradients in several types of molecules, such as ascorbic acid. (wikipedia.org)
  • citation needed] Acetabularia has been used to study circadian rhythms. (wikipedia.org)
  • Hammerling , J.: Nucleo-cytoplasmic interactions in Acetabularia and other cells. (springer.com)
  • Manosyl form microfibrils in the cell walls of a number of marine green algae including those from the genera, Codium , Dasycladus , and Acetabularia as well as in the walls of some red algae , like Porphyra and Bangia . (wikidoc.org)
  • Although a single cell, Acetabularia exhibits a remarkably complex shape and has therefore long been a model organism for studying gene expression and morphogenesis. (wikipedia.org)
  • Free study guide is to practice acetabularia quiz online with MCQs to practice test questions with answers. (mcqslearn.com)
  • Coming full circle to the spiraling leaves correlated with the Fibonacci series, Brian Goodwin has, in agreement with Thompson, proposed a developmental constraint to account for Acetabularia acetabulum's non-adaptive whorls . (leoalmanac.org)
  • It can be found attached on rocks or other hard substrates of the sublitoral zone usually forming dense colonies ( Acetabularia phase). (nmp-zak.org)
  • Acetabularia is such a large cell that it can be readily handled with one's hands. (asmblog.org)
  • But the giant-celled algae, including Acetabularia , are high on this list. (asmblog.org)