A form-genus of CYANOBACTERIA in the order Nostocales, characterized by thin trichomes, cylindrical akinetes, and terminal heterocysts.
A form-genus of planktonic CYANOBACTERIA in the order Nostocales.
A compound that contains a reduced purine ring system but is not biosynthetically related to the purine alkaloids. It is a poison found in certain edible mollusks at certain times; elaborated by GONYAULAX and consumed by mollusks, fishes, etc. without ill effects. It is neurotoxic and causes RESPIRATORY PARALYSIS and other effects in MAMMALS, known as paralytic SHELLFISH poisoning.
A phylum of oxygenic photosynthetic bacteria comprised of unicellular to multicellular bacteria possessing CHLOROPHYLL a and carrying out oxygenic PHOTOSYNTHESIS. Cyanobacteria are the only known organisms capable of fixing both CARBON DIOXIDE (in the presence of light) and NITROGEN. Cell morphology can include nitrogen-fixing heterocysts and/or resting cells called akinetes. Formerly called blue-green algae, cyanobacteria were traditionally treated as ALGAE.
Toxic or poisonous substances elaborated by marine flora or fauna. They include also specific, characterized poisons or toxins for which there is no more specific heading, like those from poisonous FISHES.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
Free-floating minute organisms that are photosynthetic. The term is non-taxonomic and refers to a lifestyle (energy utilization and motility), rather than a particular type of organism. Most, but not all, are unicellular algae. Important groups include DIATOMS; DINOFLAGELLATES; CYANOBACTERIA; CHLOROPHYTA; HAPTOPHYTA; CRYPTOMONADS; and silicoflagellates.
The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.
A di-tert-butyl PHENOL with antioxidant properties.
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)
The metal-free blue phycobilin pigment in a conjugated chromoprotein of blue-green algae. It functions as light-absorbing substance together with chlorophylls.
An algal bloom where the algae produce powerful toxins that can kill fish, birds, and mammals, and ultimately cause illness in humans. The harmful bloom can also cause oxygen depletion in the water due to the death and decomposition of non-toxic algae species.
Flagellate EUKARYOTES, found mainly in the oceans. They are characterized by the presence of transverse and longitudinal flagella which propel the organisms in a rotating manner through the water. Dinoflagellida were formerly members of the class Phytomastigophorea under the old five kingdom paradigm.
The enrichment of a terrestrial or aquatic ECOSYSTEM by the addition of nutrients, especially nitrogen and phosphorus, that results in a superabundant growth of plants, ALGAE, or other primary producers. It can be a natural process or result from human activity such as agriculture runoff or sewage pollution. In aquatic ecosystems, an increase in the algae population is termed an algal bloom.
Cyclic heptapeptides found in MICROCYSTIS and other CYANOBACTERIA. Hepatotoxic and carcinogenic effects have been noted. They are sometimes called cyanotoxins, which should not be confused with chemicals containing a cyano group (CN) which are toxic.
A form-genus of CYANOBACTERIA in the order Chroococcales. Many species are planktonic and possess gas vacuoles.
Activity engaged in for pleasure.
Inland bodies of still or slowly moving FRESH WATER or salt water, larger than a pond, and supplied by RIVERS and streams.
The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
Naphthalene derivatives carrying one or more hydroxyl (-OH) groups at any ring position. They are often used in dyes and pigments, as antioxidants for rubber, fats, and oils, as insecticides, in pharmaceuticals, and in numerous other applications.
A soil-dwelling actinomycete with a complex lifecycle involving mycelial growth and spore formation. It is involved in the production of a number of medically important ANTIBIOTICS.
A genus of gram-negative, rod-shaped bacteria in the family PHYLLOBACTERIACEAE. They are able to invade root-hairs of a wide range of plants, inciting the production of PLANT ROOT NODULES.
7-carbon saturated monocarboxylic acids.
A genus of gram-negative, aerobic, nonsporeforming rods which usually contain granules of poly-beta-hydroxybutyrate. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
Sequential operating programs and data which instruct the functioning of a digital computer.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
The genetic complement of a BACTERIA as represented in its DNA.
A plant family of the order Myrtales, subclass Rosidae, class Magnoliopsida composed of tropical plants with parallel-nerved leaves.
Geological formations consisting of underground enclosures with access from the surface.
Small, hairy, moth-like flies which are of considerable public health importance as vectors of certain pathogenic organisms. Important disease-related genera are PHLEBOTOMUS, Lutzomyia, and Sergentomyia.
A large, subclass of arachnids comprising the MITES and TICKS, including parasites of plants, animals, and humans, as well as several important disease vectors.
Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed)
A chain of islands, cays, and reefs in the West Indies, lying southeast of Florida and north of Cuba. It is an independent state, called also the Commonwealth of the Bahamas or the Bahama Islands. The name likely represents the local name Guanahani, itself of uncertain origin. (From Webster's New Geographical Dictionary, 1988, p106 & Room, Brewer's Dictionary of Names, 1992, p45)
Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.
A form-genus of CYANOBACTERIA in the order Nostocales. Trichomes composed of spherical or ovoid vegetative cells along with heterocysts and akinetes. The species form symbiotic associations with a wide range of eukaryotes.
A form-genus of filamentous CYANOBACTERIA in the order Nostocales. Its members can be planktonic or benthic and the trichomes are composed of disc-shaped vegetative cells.
Removal of ENVIRONMENTAL POLLUTANTS or contaminants for the general protection of the environment. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with ENVIRONMENTAL MONITORING.
Methanes substituted with three halogen atoms, which may be the same or different.
Peptides whose amino and carboxy ends are linked together with a peptide bond forming a circular chain. Some of them are ANTI-INFECTIVE AGENTS. Some of them are biosynthesized non-ribosomally (PEPTIDE BIOSYNTHESIS, NON-RIBOSOMAL).
A plant genus of the family CYPERACEAE.
A plant family of the order Eucommiales, subclass Hamamelidae, class Magnoliopsida (some botanists have classified this in the order Hamamelidales or Urticales). Eucomia is an elmlike tree of central and eastern China. Leaves are alternate; deciduous flowers are solitary and unisexual and lack petals and sepals. The male flowers have 6 to 10 stamens and female flowers have one ovary of two carpels, one of which aborts during development so the fruit (a dry, winged structure) contains only one seed. The latex is a source of RUBBER. Tochu tea is an aqueous extract of Eucommia ulmoides leaves and a popular beverage in Japan. (Mutat Res 1997 Jan 15;388(1):7-20).
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.

Genetic diversity of Cylindrospermopsis strains (cyanobacteria) isolated from four continents. (1/17)

The genetic diversity of Cylindrospermopsis strains (cyanobacteria) was examined using mainly the 16S-23S internally transcribed spacer (ITS1) sequences. Strains were grouped in three clusters: (i) America, (ii) Europe, and (iii) Africa and Australia. These results suggested a recent spread of Cylindrospermopsis across the American and European continents from restricted warm refuge areas instead of exchanges between continents. On the other hand, they also suggested a recent colonization of Australia by African strains.  (+info)

Primary irritant and delayed-contact hypersensitivity reactions to the freshwater cyanobacterium Cylindrospermopsis raciborskii and its associated toxin cylindrospermopsin. (2/17)

BACKGROUND: Freshwater cyanobacteria are common inhabitants of recreational waterbodies throughout the world; some cyanobacteria can dominate the phytoplankton and form blooms, many of which are toxic. Numerous reports in the literature describe pruritic skin rashes after recreational or occupational exposure to cyanobacteria, but there has been little research conducted on the cutaneous effects of cyanobacteria. Using the mouse ear swelling test (MEST), we sought to determine whether three toxin-producing cyanobacteria isolates and the purified cyanotoxin cylindrospermopsin produced delayed-contact hypersensitivity reactions. METHODS: Between 8 and 10 female Balb/c mice in each experiment had test material applied to depilated abdominal skin during the induction phase and 10 or 11 control mice had vehicle only applied to abdominal skin. For challenge (day 10) and rechallenge (day 17), test material was applied to a randomly-allocated test ear; vehicle was applied to the other ear as a control. Ear thickness in anaesthetised mice was measured with a micrometer gauge at 24 and 48 hours after challenge and rechallenge. Ear swelling greater than 20% in one or more test mice is considered a positive response. Histopathology examination of ear tissues was conducted by independent examiners. RESULTS: Purified cylindrospermopsin (2 of 9 test mice vs. 0 of 5 control mice; p = 0.51) and the cylindrospermopsin-producing cyanobacterium C. raciborskii (8 of 10 test mice vs. 0 of 10 control mice; p = 0.001) were both shown to produce hypersensitivity reactions. Irritant reactions were seen on abdominal skin at induction. Two other toxic cyanobacteria (Microcystis aeruginosa and Anabaena circinalis) did not generate any responses using this model. Histopathology examinations to determine positive and negative reactions in ear tissues showed excellent agreement beyond chance between both examiners (kappa = 0.83). CONCLUSION: The irritant properties and cutaneous sensitising potential of cylindrospermopsin indicate that these toxicological endpoints should be considered by public health advisors and reservoir managers when setting guidelines for recreational exposure to cyanobacteria.  (+info)

Occurrence of toxin-producing cyanobacteria blooms in a Brazilian semiarid reservoir. (3/17)

We report the occurrence of cyanobacterial blooms and the presence of cyanotoxins in water samples from the Armando Ribeiro Goncalves reservoir (06 degrees 08 S and 37 degrees 07 W), located in the state of Rio Grande do Norte, in the semiarid region of northeastern Brazil. The cyanobacterial species were identified and quantified during the rainy and dry seasons in the year 2000. Cyanotoxins such as microcystins, saxitoxins and cylindrospermopsins were analyzed and quantified using HPLC and ELISA methods. The mixed toxic blooms of Cylindrospermopsis raciborskii, Microcystis spp (M. panniformis, M. protocystis, M. novacekii) and Aphanizomenon spp (Aphanizomenon gracile, A. cf. manguinii, A. cf. issastschenkoi) were persistent and represented 90-100% of the total phytoplankton species. Toxic cyanobacterial blooms from the Armando Ribeiro Goncalves reservoir were analyzed and found to have three phases in relation to the annual cycle. During the rainy season, an intense toxic bloom of Cylindrospermopsis raciborskii was recorded along with saxitoxins (3.14 microg.L(-1)). During the transition period, between the rainy and dry seasons, different species of Microscytis occurred and microcystin as high as 8.8 microg.L(-1) was recorded. In the dry season, co-dominance of Cylindrospermopsis raciborskii, Microcystis spp and Aphanizomenon spp occurred and the concentrations of saxitoxin remained very low. Our results indicate the presence of microcystins (8.8 microg.L(-1)) and saxitoxins (3.14 microg.L(-1)) into the crude water, with increasing concentrations from the second fortnight of April to late May 2000. The occurrence of toxic blooms in this reservoir points to a permanent risk of cyanotoxins in supply waters, indicating the need for the implementation of bloom control measures to improve the water quality. Exposure of the local population to cyanotoxins through their potential accumulation in fish muscle must also be considered.  (+info)

Characterization of the gene cluster responsible for cylindrospermopsin biosynthesis. (4/17)

Toxic cyanobacterial blooms cause economic losses and pose significant public health threats on a global scale. Characterization of the gene cluster for the biosynthesis of the cyanobacterial toxin cylindrospermopsin (cyr) in Cylindrospermopsis raciborskii AWT205 is described, and the complete biosynthetic pathway is proposed. The cyr gene cluster spans 43 kb and is comprised of 15 open reading frames containing genes required for the biosynthesis, regulation, and export of the toxin. Biosynthesis is initiated via an amidinotransfer onto glycine followed by five polyketide extensions and subsequent reductions, and rings are formed via Michael additions in a stepwise manner. The uracil ring is formed by a novel pyrimidine biosynthesis mechanism and tailoring reactions, including sulfation and hydroxylation that complete biosynthesis. These findings enable the design of toxic strain-specific probes and allow the future study of the regulation and biological role of cylindrospermopsin.  (+info)

Toxicity of cylindrospermopsin, and other apparent metabolites from Cylindrospermopsis raciborskii and Aphanizomenon ovalisporum, to the zebrafish (Danio rerio) embryo. (5/17)

 (+info)

The smallest known genomes of multicellular and toxic cyanobacteria: comparison, minimal gene sets for linked traits and the evolutionary implications. (6/17)

 (+info)

The cylindrospermopsin gene cluster of Aphanizomenon sp. strain 10E6: organization and recombination. (7/17)

 (+info)

Development of a hierarchical oligonucleotide primer extension assay for the qualitative and quantitative analysis of Cylindrospermopsis raciborskii subspecies in freshwater. (8/17)

A newly-developed molecular method, hierarchical oligonucleotide primer extension (HOPE), was used to analyze various groups within the species Cylindrospermopsis raciborskii. PCR-amplified internally transcribed spacer sequences of 16S-23S from C. raciborskii in reservoir samples of Taiwan and Kinmen were examined. One of eight sequevars in the clone libraries was closely related to strains obtained from the European continent, while the others, designated of Taiwan (TW) type, belonged to a novel group. Optimized HOPE analyses showed that C. raciborskii distributed in different reservoirs with a relative abundance of 0.5% to 76.4% in the cyanobacterial communities. They further detected the concurrence of three C. raciborskii subpopulations, in which European and TW groups were predominant. The TW sequevars accounted for greater than 87.5% of C. raciborskii in the reservoirs Taihu, Yangmin, Jinsha, and Mudan, while this decreased to 55.4-58.1%, accompanied by a proportional increase of the European group, in reservoirs Lantan and Renyi. These findings revealed the complex subspecies structure within C. raciborskii and the subspecies dynamics associated with geographic locations.  (+info)

Nagy, Veronika and Agócs, Attila and Deli, József and Gulyás, Gergely and Illyés, Tünde Zita and Turcsi, Erika Margit and Béni, Szabolcs and Vasas, Gábor (2018) Carotenoid glycoside isolated and identified from cyanobacterium Cylindrospermopsis raciborskii. JOURNAL OF FOOD COMPOSITION AND ANALYSIS, 65. pp. 6-10. ISSN 0889-1575 Nagy, Veronika and Agócs, Attila and Deli, József and Gulyás-Fekete, Gergely and Illyés, Tünde Zita and Kurtán, Tibor and Turcsi, Erika and Béni, Szabolcs and Dékány, Miklós and Ballot, Andreas and Vasas, Gábor (2017) Carotenoid glycoside isolated and identified from cyanobacterium Cylindrospermopsis raciborskii. JOURNAL OF FOOD COMPOSITION AND ANALYSIS, 65. pp. 6-10. ISSN 0889-1575 Agócs, Attila and Murillo, Enrique and Turcsi, Erika and Béni, Szabolcs and Darcsi, András (2017) Isolation of allene carotenoids from mamey. JOURNAL OF FOOD COMPOSITION AND ANALYSIS. pp. 1-5. ISSN 0889-1575 Agócs, Attila and Bokor, Éva and Takátsy, Anikó and Lóránd, ...
Cylindrospermopsis raciborskii is a freshwater cyanobacterium. This bacterium is an aquatic photosynthetic bacteria belonging to the phylum Cyanobacteria. They are composed of chained filaments known as trichomes that can show variation in morphology, varying from about 50-300 micrometers in length. These bacteria can also produce a thick walled, cylindrical, spore like structure known as akinetes, which also demonstrate variation in morphology. Some strains of this species are able to produce several toxins which affect humans: cylindrospermopsin, anatoxin-a and saxitoxin. This first toxin, cylindrospermopsin, has the ability to affect the liver and kidneys in humans as well as cause mild skin reactions upon exposure. The last two toxins, anatoxin-a and saxitoxin, are thought to be shellfish neurotoxins. Research has shown that C. raciborskii can naturally produce butylated hydroxytoluene, an antioxidant, food additive, and industrial chemical. Domain - Bacteria The Tree of Life contains three ...
Akinetes are the dormant cells of Nostocales (cyanobacteria) that enable the organisms to survive harsh environmental conditions while resting in bottom sediments. The germination of akinetes assists the dispersal and persistence of the species. The assessment of the akinete pool in lake sediments is essential to predict the bloom formation of the Nostocales population. We present here the implementation of an improved catalysed reporter deposition (CARD)-fluorescence in situ hybridization (FISH) protocol to assist the identification and quantification of akinetes in sediment samples. Several 16S rRNA gene oligonucleotide probes were evaluated for labelling akinetes of various species of Anabaena, Aphanizomenon and Cylindrospermopsis. Akinetes of all the taxa studied were successfully labelled and could be easily detected by their bright fluorescence signal. The probes specificity was tested with 32 strains of different taxa. All six Cylindrospermopsis raciborskii strains were labelled with a ...
Thus, the variation among global C. raciborskii populations was reflected differently in the nifH and cpcBA-IGS nucleotide sequences. Although nifH was the smaller of the two gene fragments sequenced, regional distinctions could be made based on these sequences. C. raciborskii isolates originating from Europe, Australia, or the Americas were separated phylogenetically into distinct clusters based upon the nifH sequence data. While there were distinctions between regions revealed by the nifH sequence data (variation of up to 2.5%), the amount of variation within each of these three geographic regions was very low (,1%). Phylogenetic analyses based upon cpcBA-IGS nucleotide sequences only differentiated American C. raciborskii isolates. The higher degree of similarity between European and Australian isolates within this part of the phycocyanin operon did not allow distinctions to be made among these groups. In previous studies, variation in cpcBA-IGS has been sufficient to differentiate strains of ...
The overall project goal is to adapt and validate a rapid and accurate optical fiber-based technology for cyanoHAB cell detection and enumeration in both laboratory and field settings. Specific objectives are to: 1) design ribosomal RNA (rRNA) signal and capture probes for the three most important toxic cyanobacteria (Microcystis aeruginosa, Cylindrospermopsis raciborskii, and Anabaena flos-aquae) using published sequences; 2) design and test a second probe pair for each species to incorporate redundancy into the array; 3) test these probes in the fiber-optic array format and determine detection limits, specificity, and dynamic range; 4) refine hybridization conditions to reduce processing time; 5) develop procedures to analyze multiple cyanoHAB species simultaneously using a single fiber bundle in a multiplexed format and validate it using mixed cultures and spiked and unspiked field samples; 6) work with individuals and agencies responsible for fresh- and brackish water management to determine ...
The freshwater cyanobacterium Microcystis is a nuisance species. It forms large blooms on the water surface and overwhelmingly dominates the ecosystem through the formation of colonies from single cells surrounded by mucilage; however, the mechanism of colony formation is poorly understood. Two mechanisms of Microcystis colony formation have been proposed: cell-division, where cells remain attached after binary fission; and cell-adhesion, where single cells stick together. This paper examined the published literature on Microcystis colony formation to clarify the mechanism of colony formation and its relationship to environmental drivers. This meta-analysis showed that in laboratory experiments, colony formation by cell-division was mainly induced by zooplankton filtrate, high Pb2+ concentrations, the presence of the cyanobacterium Cylindrospermopsis raciborskii, heterotrophic bacteria, and low temperature and low light intensities. Alternatively, colony formation by cell-adhesion was mainly ...
Arginine (Arg) and glycine (Gly) seem to be the only substrates accepted by the amidinotransferase that catalyze the first step of the synthesis pathway of the cyanotoxin cylindrospermopsin (CYN), leading to guanidinoacetate (GAA). Here, the effect of these amino acids on the production of CYN in cultures of the cylindrospermopsin-producing strain, Aphanizomenon ovalisporum UAM-MAO, has been studied. Arg clearly increased CYN content, the increment appearing triphasic along the culture. On the contrary, Gly caused a decrease of CYN, observable from the first day on. Interestingly, the transcript of the gene ntcA, key in nitrogen metabolism control, was also enhanced in the presence of Arg and/or Gly, the trend of the transcript oscillations being like that of aoa/cyr. The inhibitory effect of Gly in CYN production seems not to result from diminishing the activity of genes considered involved in CYN synthesis, since Gly, as Arg, enhance the transcription of genes aoaA-C and cyrJ. On the other hand,
Arginine (Arg) and glycine (Gly) seem to be the only substrates accepted by the amidinotransferase that catalyze the first step of the synthesis pathway of the cyanotoxin cylindrospermopsin (CYN), leading to guanidinoacetate (GAA). Here, the effect of these amino acids on the production of CYN in cultures of the cylindrospermopsin-producing strain, Aphanizomenon ovalisporum UAM-MAO, has been studied. Arg clearly increased CYN content, the increment appearing triphasic along the culture. On the contrary, Gly caused a decrease of CYN, observable from the first day on. Interestingly, the transcript of the gene ntcA, key in nitrogen metabolism control, was also enhanced in the presence of Arg and/or Gly, the trend of the transcript oscillations being like that of aoa/cyr. The inhibitory effect of Gly in CYN production seems not to result from diminishing the activity of genes considered involved in CYN synthesis, since Gly, as Arg, enhance the transcription of genes aoaA-C and cyrJ. On the other hand,
Lake Thunderbird Algae Study 2003 Final Report Lake Thunderbird Algae 2003 for the Central Oklahoma Master Conservancy District May 2004 Final Report Oklahoma Water Resources Board 3800 North Classen Boulevard Oklahoma City, OK 73118 Oklahoma Water Resources Board LAKE THUNDERBIRD ALGAE STUDY FINAL REPORT 2 Executive Summary Algae have long been known to cause water quality problems in many municipal water systems. From the available data, Lake Thunderbird contains algae with the potential to produce taste and odor (T&O) and toxin chemicals (Table 0.1). Table 0.1: Summary of potential taste and odor and toxin producing species identified in Lake Thunderbird in 2003. Species Division Potential T&O Potential Toxin Anabaena bergeii v. limnetica Cyanophyta X X Anabaena flos-aquae Cyanophyta X X Anabaena spiroides Cyanophyta X X Anabaenopsis elenkinii** Cyanophyta X Aphanizomenon issatschenkoi Cyanophyta X X Cylindrospermopsis raciborskii Cyanophyta X Planktolyngbya contorta (Lyngbya lagerheimii f. ...
Lake Thunderbird Algae Study 2003 Final Report Lake Thunderbird Algae 2003 for the Central Oklahoma Master Conservancy District May 2004 Final Report Oklahoma Water Resources Board 3800 North Classen Boulevard Oklahoma City, OK 73118 Oklahoma Water Resources Board LAKE THUNDERBIRD ALGAE STUDY FINAL REPORT 2 Executive Summary Algae have long been known to cause water quality problems in many municipal water systems. From the available data, Lake Thunderbird contains algae with the potential to produce taste and odor (T&O) and toxin chemicals (Table 0.1). Table 0.1: Summary of potential taste and odor and toxin producing species identified in Lake Thunderbird in 2003. Species Division Potential T&O Potential Toxin Anabaena bergeii v. limnetica Cyanophyta X X Anabaena flos-aquae Cyanophyta X X Anabaena spiroides Cyanophyta X X Anabaenopsis elenkinii** Cyanophyta X Aphanizomenon issatschenkoi Cyanophyta X X Cylindrospermopsis raciborskii Cyanophyta X Planktolyngbya contorta (Lyngbya lagerheimii f. ...
December 2018. In This Edition Articles - Determination of heroin in street drug samples with printable surface enhanced Raman scattering (P-SERS) - Advances in Protein Sample Preparation: Centrifugation i.... ...
today i slept most of the day away..then at nite steph asks me to go out AGAIN..... so i sms rick cyn n manda...it was 10pm areadi. waitin for their reply... cyn calls to tell me she is goin out wit manda n her sis,her cuzns n her own bro. so i tot id rather go wit cyn they all, than jus me n steph.then i waited for ricks reply but received mandas... she was like (not today la,mebe another day..u enjoy urself la.) my blood boiled afta seeing tat.i felt like soo betrayed cuz i areadi knew she was goin out wit cyn n her family but she acts like shes bz with sumtin n tryin to hide tat she goin out wit them. its not as if im not close to them..im areadi frens wit all of them except for cyns bro .so i wanted a hailstorm to fall on manda rite then.then i called cyn to say im goin wit her afta tokin myself out of stephs outing cuz two ppl is jus too little.she said she was areadi eating wit them,then she say (shall i ask if u can come) but i was like.y cant i come?its like automatic la.rachel then ...
Many freshwater phytoplankton species have the potential to form transient nuisance blooms that affect water quality and other aquatic biota. Heterotrophic bacteria can influence such blooms via nutrient regeneration but also via antagonism and other biotic interactions. We studied the composition of bacterial communities associated with three bloom-forming freshwater phytoplankton species, the diatom Aulacoseira granulata and the cyanobacteria Microcystis aeruginosa and Cylindrospermopsis raciborskii. Experimental cultures incubated with and without lake bacteria were sampled in three different growth phases and bacterial community composition was assessed by 454-Pyrosequencing of 16S rRNA gene amplicons. Betaproteobacteria were dominant in all cultures inoculated with lake bacteria, but decreased during the experiment. In contrast, Alphaproteobacteria, which made up the second most abundant class of bacteria, increased overall during the course of the experiment. Other bacterial classes ...
INTRODUCTION. Pollution and eutrophication lead to the presence of high concentrations of organic and inorganic compounds, which enhance phytoplankton (including Cyanophyceae) blooms and concomitantly decrease water quality (Venter et al., 2003; Heisler et al., 2008 and Li et al., 2011). The occurrence of these blooms in the source water for drinking water production is of critical importance to drinking water providers as phytoplank-ton can have both a physical impact (e.g. clogging of filters) and chemical impact (e.g. production of cyanotoxins, disinfection by-products and taste and odour compounds) on the treatment process (Du Preez et al., 2007; Merel et al., 2010).. Phytoplankton known to cause problems during drinking water treatment, include groups like Dinophyceae (Ceratium hirundinella), Cyanophyceae (Microcystis aeruginosa, Anabaena circinalis, Oscillatoria simplicissma and Cylindrospermopsis), Bacillariophyceae (Aulacoseira granu-lata) as well as the Chlorophcyeae (Cladophora). ...
The purpose of this study is to describe the morphological characteristics of the Aphanizomenon spp. and related species from the natural samples collected in the Nakdong River of South Korea. Morphological characteristics in the four species classified into the genera Aphanizomenon Morren ex Bornet et Flahault 1888 and Cuspidothrix Rajaniemi et al. 2005 were observed by light microscopy. The following four taxa were identified: Aphanizomenon flos-aquae Ralfs ex Bornet et Flahault, Aphanizomenon klebahnii Elenkin ex Pechar, Aphanizomenon skujae Komárková-Legnerová et Cronberg, and Cuspidothrix issatschenkoi (Usačev) Rajaniemi et al. Aph. flos-aquae and Aph. klebahnii always formed in fascicles; the others only occurred in solitary. Aph. flos-aquae was similar to Aph. klebahnii, whereas these species differed from each other by the size and shape of fascicles, which was macroscopic in Aph. flos-aquae and microscopic in the Aph. klebahnii. One of their characteristics was that trichomes are easily
Cynthia Hazell Ewing met Cecil Clifford Costain on April 26th, 1948. Cec was a Canadian student at St. Johns College, Cambridge, on an 1851 scholarship for Commonwealth students, working on his PhD. in Physics with Dr. Gordon Sutherland. He wrote fewer letters than Cyn although he had traveled a lot more, on the aircraft carrier…
Creadur gyda dim ond un gell yw organeb ungellog. Mae bacteria yn organeb ungellol. Credir mai dymar math hynaf o fywyd ar wyneb y Ddaear, gydar protogell yn ffurfio rhwng 3.8 a 4 biliwn cyn y presennol (CP).[1][2] Gelwir creaduriaid gyda mwy nag un gell yn Organebau amlgellog. Y prif grwpiau o organebau ungellog yw: bacteria, archaea, protosoa, algae ungellog a ffwngi ungellog. Gellir eu dosbarthun ddau gategori: organebau procaryotig ac eucaryotig. ...
DATASHEET 62256 PDF - The CYN is a high performance CMOS static RAM organized as 32K words by 8 bits. Easy memory expansion is provided by an active. The CY is a
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dallUniversità di Modena e Reggio Emilia e delle regole riportate nel DM 598/2018 e allegata Tabella A. Cineca, lUniversità di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito alluso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti ...
Home Cyn Home. India, Switzerland, Life and everything in between. Food, decor and lifestyle of an expat in a multicultural relationship.
Benthyciwyd yn helaeth or Saesneg ir Gymraeg trwyr oesau. Benthyciwyd termau o feysydd amrywiol or Hen Saesneg gan gynnwys termau masnach (ee. punt o pŭnd), termaur tŷ ar fferm, (berfa o bearwe, llyffethair o lang feter). Enghreifftiau eraill or amrywiaeth o fenthyciadau a ddigwyddodd cyn dyfodiad y Normaniaid yw het o haet, hosan o hosa, cusan o cyssan, dewr o dior, sur o sūr. Wedi dyfod or Normaniaid parhau a wnaeth y benthyg geiriau yn sgil y mynd a dod ar draws Clawdd Offa. Gellir olrhain nifer o fenthyciadau i adeg Saesneg Canol (cyn yr unfed ganrif ar bymtheg) trwy fod olion yr ynganiad Saesneg Canol yn aros yn y gair Cymraeg modern ond bod yr ynganiad Saesneg wedi newid, e.e. abl, acer, bacwn (a fer Saesneg Canol wedi newid i a fel yn y gair Saesneg modern able) a cnaf, cnap, cnoc (lle collwyd yr c yn Saesneg). Erys ôl y terfyniad lluosog Saesneg Canol -es yn y geiriau Cymraeg lluosog betys, cocos, ffigys, taplas, ayb. Ers twf dwyieithrwydd a Seisnigeiddio yng Nghymru mae llu ...
51 Joehnk, K. D. Huisman, J., Sharples, J., Sommeijer, B., Visser, P.M. and Stroom, J. M (2007) Summer heatwaves promote blooms of harmful cyanobacteria. Global Change Biol. 14 495 512. Kratz, W. A. and Myers, J. (1955) Nutrition and growth of several blue -green algae. Am. J. Bot. 42, 282 287. Lewis W. M., Jr and Wurtsbaugh, W. A. (2008) Control of lacustri ne phytoplankton by nutrients: erosion of the phosphorus paradigm. Int. Rev. Hydrobiol., 93 446 465. Livingston, R. J. (1990) The R ivers of F lorida Springer -Verlag N ew York, NY Oliver, R. L. Ganf, G. G. Whitton, B. A. and Potts, M. (2000) The E cology of C yanobacteria: Their D iversity in T ime and S pace. Kluwer Academic Publishers Dordrecht NL Padisk, J. (1997) C ylindrospermopsis raciborskii (W oloszynska) Seenayya et S ubba R aju, an expanding, h ighly adaptive cyanobacterium: w orldwide distribution and review of its ecology. Arch Hydrobiol./ Suppl 107, 563 593. Paerl, H. W. and Huis man, J. (2009) Climate change: a catalyst for ...
Iris Kleerekooper, Zoé L.E. van Kempen, Cyra E. Leurs, Iris Dekker, Theo Rispens, Birgit I. Lissenberg-Witte, Caspar E.P. van Munster, Brigit A. de Jong, Bob W. van Oosten, Bernard M.J. Uitdehaag, Mike P. Wattjes, Joep Killestein ...
I started writing when I was in my last year of university. It was my cry for something other than squinting at a microscope, counting bacterial cultures and laborious protein identification (though Sonic Hedgehog was super interesting at first). Over the year and a half of clicking away at my keys, I discovered something I…
IDEM began blue-green algae sampling the week of May 15 and will end the week of August 28. IDEM samples for blue-green algae and analyzes those samples for the type and quantity of blue-green algae present and for the following toxins which may be produced by certain types of blue-green algae: microcystin, cylindrospermopsin (only done if species that produce it are present) and anatoxin-a. For protection of human health from exposure to the algae and any of the toxins, cyanobacteria will be compared to the World Health Organization (WHO) and United States Environmental Protection Agency (EPA) guidelines. WHO guidelines recommend using an action level of 100,000 cells/ml of cyanobacteria to post recreational advisory signs. New USEPA guidelines for microcystins recommend posting recreational advisories at 4 μg/l and DNR will issue an additional advisory at 4μg/l. Swimming will be prohibited at 20 μg/l, consistent with WHO guidelines. DNR will use the USEPA recommended cylindrospermopsin ...
Everbuild Industrial Grade Superglue GP Medium Viscosity 50g CYN50 medium viscosity flash setting industrial adhesive based on advanced cyanoacrylate technology. Benefits Flash setting formulation, Bonds to most non porous surfaces in seconds. Fills gaps up to 0.1mm Single component adhesive 100% solvent free Economical in use 5 to 15 seconds
Supplementary Materialstoxins-12-00196-s001. resembling a natural cyanobacteria bloom. The estimated amount of toxins made by and were 0 respectively.023 pg/cell of microcystin-LR (MC-LR) and 7.854 pg/cell of cylindrospermopsin (CYN). After 15 times of contact with blended and one cyanobacteria, a depuration stage followed, where mussels had been fed only nontoxic microalga and modulate their cleansing and oxidative-stress protection systems after contact with MCs [23,24]. Certainly, contaminants of estuarine and seaside areas produced from the movement of polluted freshwaters from inland to the ocean have already been reported in various geographical locations [25,26,27], constituting a potential thread to sea ecosystems. For instance, high degrees of MCs had been within mussels gathered from SAN FRANCISCO BAY AREA Bay, California [26]. Furthermore, a monitoring research within this estuary demonstrated the fact that contaminants of bivalves with MCs is certainly recurrent being discovered in ...
Maynes, J. T. ; Luu, H. A. ; Cherney, M. M. ; Andersen, R. J. ; Williams, D. ; Holmes, C. F. B. ; James, M. N. G. Crystal Structures Of Protein Phosphatase-1 Bound To Motuporin And Dihydromicrocystin-La: Elucidation Of The Mechanism Of Enzyme Inhibition By Cyanobacterial Toxins. Journal of Molecular Biology 2006, 356, 111-120. ...
This bralette swim top features a triangle design, and a corset style lace-up back. Coordinating swim bottoms available separately.
There were many older kids (primary school age) who were really quite rough. They were probably having so much fun that they didnt look out for younger children who may be hurt by their thoughtless acts. Many of them ran around the shallow pool with water splashing high. Jase and char had water splashed into their noses a few times. Each time it happened, they would have a wanna-cry-coz-theyve-been-bullied-face. However, cyn would quickly put a stop to that by telling them it was fine and all they had to do was to stand up so as to prevent more water from splashing into their faces ...
Maer Rhewlifiad Cryogenaidd yn un o 5 rhewlifiad anferthol ar ail rewlif ers ffurfior Ddaear, gyda Rhewlifiad Hwronaidd oi flaen ar Rhewlifiad Andea-Saharaidd ar ei ôl. Tarddiad y gair ywr Hen Roeg cryos oerfel a genesis geni. Parodd y cyfnod hwn rhwng 720 i 635 miliwn o flynyddoedd cyn y presennol (CP). Wedi ffurfior Ddaear ar ddechraur Eon Hadeaidd, oerodd yn araf, dros gyfnod hir o amser, a chafwyd o leiaf 5 Oes yr Iâ (neu rewlifau) sylweddol: y Rhewlifiad Hwronaidd (Huronian), y Cryogenaidd, y Rhewlifiant Andea-Saharaidd (Andean-Saharan), Oes Iâ Karoo ar Rhewlifiant Cwaternaidd sef yr Oes Iâ rydym yn byw ynddi heddiw. Ar wahân ir 5 cyfnod yma, maen fwy na phosibl nad oedd rhew yn unman ar y Ddaear yn ystod y cyfnodau eraill.[1][2]. ...
Sorghum is an important crop in the semi-arid regions of Africa where rainfall is limited and water-intensive crops such as maize cannot be grown
RESCHEDULED FROM 8/15/17 The increase of cyanobacteria blooms and associated metabolite release (taste and odor-causing compounds and cyanotoxins) are causing numerous problems for water treatment plants in terms of maintaining treatment performance, managing disinfection by-products (DBPs), and dealing with the potential presence of the cyanotoxins themselves. The EPA issued health advisories in June 2015 for two cyanotoxins (microcystins and cylindrospermopsin) and utilities have been struggling with how to manage bloom events and optimize treatment to remove cyanotoxins. This webcast will highlight the effectiveness of conventional and advanced treatment processes for managing intracellular and extracellular cyanotoxins while minimizing unintended consequences. In addition, a summary of the Hazen-Adams CyanoTOX model v.2.0 will be presented. Case studies will be used to illustrate how the model worked at various utilities and will be used to provide a basis for evaluating treatment options. ...
Activation of the Ribotoxic Stress Response in Human Dermal Fibroblasts and HepG2 Cells Exposed to the Cyanobacterial Toxin Cylindropsermopsin ...
Abstract. In June 2016, massive cyanobacterial blooms occurred in the St. Lucie River in Florida, caused by nutrient and cyanobacterial-laden water releases fro
One of the most dangerous effects of cyanobacterial blooms is the release of secondary metabolites, many of which are very toxic (Carmichael 1992, Codd and Bell 1998, Chorus and Bertram 1999), into the environment. This consequence is often exacerbated by water treatment techniques that cause the algal cells to lyse, releasing the cell contents including the toxins into the treated water. In addition, when these compounds are chlorinated, some can produce trihalomethanes, which are human carcinogens.. Cyanobacterial biotoxins fall into four classes: hepatotoxins, neurotoxins, dermatotoxins, and lipopolysaccharides (Table 8.1). These substances are often algal genera, species-, or strain-specific. Hepatotoxic microcystins are the most common of the cyanobacterial toxins. They have the form of cyclic peptides, and can cause death through haemorrhages of the liver. Mortality can occur over a time period ranging from a few minutes to a few days after intoxication. Microcystins also are carcinogens, ...
Harmful cyanobacterial blooms have become a global threat to human health and aquatic biota around the world. While the ecotoxicity of cyanobacterial toxins such as microcystins (MCs) has been studied extensively, the toxicity of non-toxin producing
https://version-10-5.string-db.org/cgi/network.pl?all_channels_on=1&block_structure_pics_in_bubbles=0&direct_neighbor=1&hide_disconnected_nodes=0&hide_node_labels=0&network_display_mode=svg&network_flavor=evidence&targetmode=proteins&identifier=3055. ...
Mae eich ymgynghoriad gydar gweithiwr proffesiynol iechyd galwedigaethol yn debygol o bara tua 30-60 munud. Bydd y gweithiwr proffesiynol iechyd proffesiynol yn sicrhau eich bod yn deall pwrpas yr asesiad a rôl y gweithiwr o ran rhoi cyngor annibynnol, diduedd. Bydd angen eich caniatâd er mwyn bwrw ymlaen âr asesiad ac anfon adroddiad ysgrifenedig ynghylch eich iechyd galwedigaethol at eich rheolwr llinell. Cewch gynnig gweld yr adroddiad cyn iddo gael ei anfon at eich rheolwr. Os byddwch yn tynnu eich caniatâd yn ôl ar unrhyw adeg yn ystod y broses ni chaiff yr adroddiad ei rannu gydach rheolwr llinell. ...
Titre : HORMONAL INDUCTION OF ESTRUS IN HEIFERS OF BOS INDICUS OF SEMI-ARID REGION OF RAJASTHAN. Auteur : SINGH, SHRAVAN. Université de soutenance : Rajasthan University of Veterinary and Animal Sciences, Bikaner. Grade : Master of Veterinary Science 2007. Résumé partiel ...
Book an Eyelash Extensions appointment at Cyn City Lashes in Escondido, CA starting at $50.00. Book Online in 1-Click and get your appointment confirmed instantly!
So the last two months I have not been writing. Even though my doctors have said that my main disease, Wegeners Granulomatosis, is under control. I have had other issues. My kidneys creatinine level spiked, which meant that the kidney function was degrading. My blood pressure started to rise and my sleep was disturbed. The…
Díaz-Caravantes, R.E. & Sánchez-Flores, E., 2011. Water transfer effects on peri-urban land use/land cover: A case study in a semi-arid region of Mexico. Applied Geography, 31(2), pp.413-425 ...
The outbreak was traced back to a bloom of Cylindrospermopsis raciborskii in the local drinking water supply, and the toxin was ... Saxitoxin is produced by the cyanobacteria Anabaena spp., some Aphanizomenon spp., Cylindrospermopsis sp., Lyngbya sp. and ...
Cylindrospermopsis sp., Lyngbya sp., Planktothrix sp.) Saxitoxin accumulates particularly in bivalve filter feeders.[citation ... "The first evidence of paralytic shellfish toxins in the freshwater cyanobacterium Cylindrospermopsis raciborskii, isolated from ...
Cylindrospermopsis raciborskii (Woloszynska) Seenaya and Subba Raju isolated from a domestic water supply reservoir". Appl. ... which had been added to target a cyanobacteria bloom of Cylindrospermopsis raciborskii. The excessive dosing was following the ... "Identification of genes implicated in toxin production in the cyanobacterium Cylindrospermopsis raciborskii". Environ. Toxicol ...
The three cyanobacteria Microcystis aeruginosa, Cylindrospermopsis raciborskii and Oscillatoria sp. are the subject of research ...
The outbreak was traced back to a bloom of Cylindrospermopsis raciborskii in the local drinking water supply, and the toxin was ... Saker ML, Eaglesham GK (1999). "The accumulation of cylindrospermopsin from the cyanobacterium Cylindrospermopsis raciborskii ... and Cylindrospermopsis raciborskii, previously unknown in Australian waters. A mouse bioassay of the three demonstrated that ... Cylindrospermopsis raciborskii (Woloszynska) Seenaya and Subba Raju isolated from a domestic water supply reservoir". Applied ...
Cylindrospermopsis raciborskii (Woloszynska) Seenaya and Subba Raju isolated from a domestic water supply reservoir". Applied ... "Identification of genes implicated in toxin production in the cyanobacterium Cylindrospermopsis raciborskii". Environ. Toxicol ... the addition of excessive doses of copper sulfate to the water supply of Solomon Dam to target a bloom of Cylindrospermopsis ...
The symptoms of the disease are consistent with a hepatitis or liver disorder, and Cylindrospermopsis is known to be widespread ... Cyanobacterium Cylindro-spermopsis raciborskii as a probable cause of death in …, DEEDI. ... a toxin from Cylindrospermopsis raciborskii and other cyanobacteria, which is a hepatotoxin. ...
Saker ML, Eaglesham GK (July 1999). "The accumulation of cylindrospermopsin from the cyanobacterium Cylindrospermopsis ...
Phytoplankton, including the green algae Botryococcus braunii, as well as three different cyanobacteria (Cylindrospermopsis ...
Anabaena (Dolichospermum) Aphanizomenon Cylindrospermopsis Cylindrospermum Lyngbya Microcystis Nostoc Oscillatoria Phormidium ...
Cylindrospermopsis, and Lyngbya, all of which can cause short and long term health effects. Studies are ongoing to determine ...
Cylindrospermopsis MeSH B03.440.475.100.500 - Microcystis MeSH B03.440.475.100.550 - Nodularia MeSH B03.440.475.100.575 - ...
... is a planktonic genus of filamentous cyanobacteria known for its blooms in eutrophic waters. The type ... Guiry, M.D.; Guiry, G.M. (2008). "Cylindrospermopsis". AlgaeBase. World-wide electronic publication, National University of ... species is the tropical Cylindrospermopsis raciborskii (Woloszynska) Seenayya & Subbaraju. The cyanotoxin cylindrospermopsin ...
Species - Cylindrospermopsis raciborskii This bacterium is a freshwater cyanobacterium often found in tropical regions but can ... "Cylindrospermopsis raciborskii Factsheet". Archived from the original on 2014-08-10. Retrieved 2013-11-23. Babu B, Wu JT ( ... Genus - Cylindrospermopsis This genus of filamentous cyanobacteria is found in terrestrial and aquatic environments. In ... Cylindrospermopsis raciborskii is a filamentous cyanobacteria with the ability to fix nitrogen by converting atmospheric ...
Cylindrospermopsis raciborskii and Oscillatoria sp. are the subject of research into the natural production of butylated ...
Cylindrospermopsis is a planktonic genus of filamentous cyanobacteria known for its blooms in eutrophic waters. The type ... Guiry, M.D.; Guiry, G.M. (2008). "Cylindrospermopsis". AlgaeBase. World-wide electronic publication, National University of ... species is the tropical Cylindrospermopsis raciborskii (Woloszynska) Seenayya & Subbaraju. The cyanotoxin cylindrospermopsin ...
Species - Cylindrospermopsis raciborskii This bacterium is a freshwater cyanobacterium often found in tropical regions but can ... "Cylindrospermopsis raciborskii Factsheet". Archived from the original on 2014-08-10. Retrieved 2013-11-23. Babu B, Wu JT ( ... Genus - Cylindrospermopsis This genus of filamentous cyanobacteria is found in terrestrial and aquatic environments. In ... Cylindrospermopsis raciborskii is a filamentous cyanobacteria with the ability to fix nitrogen by converting atmospheric ...
Cylindrospermopsis raciborskii and Oscillatoria sp. are the subject of research into the natural production of butylated ... Cylindrospermopsis raciborskii classification essay. Introduction: Climate includes patterns of the temperature, rainfall, wind ... The principal species for CYN production is Cylindrospermopsis raciborskii, K.. Modern approach to the classification system of ... For these 16 species, each species had one specific band, except for Cylindrospermopsis raciborskii (bands 11 and 13). ...
Cylindrospermopsis raciborskii, a freshwater cyanobacterium of tropical origin, is not only increasingly found in (sub) ... occurrence in two German lakes and preliminary assessment of toxicity and toxin production of Cylindrospermopsis raciborskii ( ...
Cylindrospermopsis raciborskii CS-505 (heterocystous, nitrogen fixing) and Raphidiopsis brookii D9 (non-N2 fixing) produce the ... Cylindrospermopsis raciborskii CS-505 (heterocystous, nitrogen fixing) and Raphidiopsis brookii D9 (non-N2 fixing) produce the ... Cylindrospermopsis raciborskii strain CS-505 was isolated from the Solomon Dam in Palm Island, Queensland, Australia and ... Impact of Nitrogen Sources on Gene Expression and Toxin Production in the Diazotroph Cylindrospermopsis raciborskii CS-505 and ...
Cyanobacterium Cylindrospermopsis raciborskii as a probable cause of death in cattle in northern Queensland. Aust. Vet. J.76: ... The nifH Cylindrospermopsis-specific primer set was tested on DNA extracted from environmental water samples from the Falls ... The Cylindrospermopsis-specific forward primer in combination with the general cyanobacterial reverse primer amplified a 638-bp ... Cylindrospermopsis raciborskii is a cosmopolitan, nitrogen (N2)-fixing cyanobacterial species found in temperate to tropical ...
Cylindrospermopsis raciborskii is a freshwater cyanobacterium producing bloom events and toxicity in drinking water source ... Complete genome sequence of a cylindrospermopsin-producing cyanobacterium, Cylindrospermopsis raciborskii cs505, containing a ... Complete genome sequence of a cylindrospermopsin-producing cyanobacterium, Cylindrospermopsis raciborskii cs505, containing a ... Complete genome sequence of a cylindrospermopsin-producing cyanobacterium, Cylindrospermopsis raciborskii cs505, containing a ...
Island s drinking-water supply, Solomon Dam in Cylindrospermopsis raciborskii studies show Cylindrospermopsis raciborskii as ... and Eukarya cylindrospermopsis raciborskii toxin.! That caused liver failure in dialysis patients genus - Cylindrospermopsis ... Genus - Cylindrospermopsis Plants too have been used to test for cylindrospermopsin as it inhibits the growth and metabolism of ... Cylindrospermopsis raciborskii strain AWT 205 isolated and cultured from a Sydney ornamental lake [15] and supplied by Dr Peter ...
Saxitoxin is produced by the cyanobacteria Anabaena spp., some Aphanizomenon spp., Cylindrospermopsis sp., Lyngbya sp. and ... The outbreak was traced back to a bloom of Cylindrospermopsis raciborskii in the local drinking water supply, and the toxin was ...
The dominant genera of PTOX-C reported in water samples were Anabaena, Aphanizomenon, Cylindrospermopsis, and Microcystis. The ... Cylindrospermopsis. Raciboskii. 0. 0. 1,361. 340. 0. 3,266. 0. 1,167. 1,276. 0. 0. 6,850. ...
Anagnostidis, K. and J. Kom rek. 1988. Modern approach to the classification system of cyanophytes. 3-Oscillatoriales. Arch. Hydrobiol. (Suppl 80) Algol. Stud. 50/53:327-472.. Barbrook, A. C., P. J. Lockhart, and C. J. Howe. 1998. Phylogenetic analysis of plastid origins based on secA sequences. Current Genetics 34:336-341.. Bhattacharya, D. and L. Medlin. 1995. The phylogeny of plastids: a review based on comparisons of small-subunit ribosomal RNA coding regions. Journal of Phycology 31:489-498.. Bergman, B., J. Gallon, A. N. Rai, and L. Stal. 1997. Nitrogen fixing non-heterocystous cyanobacteria. FEMS Microbiological Reviews 19:139-185. Bryant, D. B. (ed.) 1994. The Molecular Biology of Cyanobacteria. Kluwer Academic Publishers, Dordrecht, Boston.. Capone, D. G, J. P. Zehr, H. W.Paerl, B. Bergman, and E. J.Carpenter. 1997. Trichodesmium, a globally significant marine cyanobacterium. Science 276:1221-1229. Carr, N. G. and B. A. Whitton (eds.) 1982. The Biology of Cyanobacteria. Blackwell ...
... then Cylindrospermopsis raciborskii, Aphanizomenon spp., and Planktolyngbya limnetica. Four days after the date of last ...
e.g., Aphanizomenon flos-aquae), Aphanocapsa spp., Cylindrospermopsis spp. (e.g., Cylindrospermopsis raciborskii), Lyngbya spp ... e.g., Aphanizomenon flos-aquae), Aphanocapsa spp., Cylindrospermopsis spp. (e.g., Cylindrospermopsis raciborskii), Lyngbya spp ...
Influence of environmental variables on saxitoxin yields by Cylindrospermopsis raciborskii in a .... Mar. 25, 2017. Saxitoxins ...
Influence of environmental variables on saxitoxin yields by Cylindrospermopsis raciborskii in a .... Mar. 25, 2017. Saxitoxins ...
The approach to probe development was the same for the three target taxa: Cylindrospermopsis, Microcystis, and Anabaena. First ... Therefore, only the probes for Cylindrospermopsis and Microcystis were successfully transitioned to the fiber optic microarray ... Microcystis andCylindrospermopsis. Concurrently, we also developed a fluorescent in situ hybridization (FISH) technique that ... Cylindrospermopsis, and Anabaena) using published sequences; (2) design and test a second probe pair for each species, to ...
Members of the genus Cylindrospermopsis represent an important environmental and health concern. Strains CS-508 and MVCC14 of C ... Fuentes-Valdés, J.J., Soto-Liebe, K., Pérez-Pantoja, D. et al. Draft genome sequences of Cylindrospermopsis raciborskii strains ... Cyanobacterial bloom-forming species are a persistent global problem [1, 2]. Cylindrospermopsis raciborskii, is a species ... Gugger M, Molica R, Le Berre B, Dufour P, Bernard C, Humbert J-F. Genetic Diversity of Cylindrospermopsis Strains ( ...
Cylindrospermopsis raciborskii (Cyanobacteria, Nostocales) productora de microcistinas en Cylindrospermopsis raciborskii ( ... Full text: Available Index: LILACS (Americas) Main subject: Cylindrospermopsis / Microcystins Country/Region as subject: South ... Full text: Available Index: LILACS (Americas) Main subject: Cylindrospermopsis / Microcystins Country/Region as subject: South ... Cylindrospermopsis raciborskii (Woloszyn´ ska) Seenayya et Subba Raju 1972 es una especie capaz de generar diversas toxinas que ...
Cylindrospermopsis raciborskii (Nostocales) and Planktothrix agardhii (Oscillatoriales). A1 Journal article (refereed) ... Cylindrospermopsis raciborskii (Nostocales) and Planktothrix agardhii (Oscillatoriales) ...
tursiops truncatus, cylindro spermopsis, chlamydiophila psittaci, entamoeba histolytica.... and my all-time favorite: kogia ...
The cyanobacterium Cylindrospermopsis raciborskii is facilitated by copepod selective grazing. Harmful algae 29: 14-21.CrossRef ... Daphnia magna feeding on Cylindrospermopsis raciborskii: the role of food composition, filament length and body size. Journal ... Laboratory feeding experiments were conducted in order to measure variation in the length of Cylindrospermopsis raciborskii ... Mean length (μm) of cyanobacterial filaments Cylindrospermopsis raciborskii in three thermal regimes: 20, 24, and 28°C ...
Cylindrospermopsis raciborskii CS-505 genome, GCA_000175835.1. *Raphidiopsis brookii D9 genome, GCA_000175855.1 ...
ABREU, V. A. C.; POPIN, RAFAEL VICENTINI ; FIORE, M. F. . Evaluation of Genetic Plasticity Among Strains of Cylindrospermopsis ... ABORDAGENS DE BIOINFORM TICA PARA CARACTERIZAR GENOMAS DE CYLINDROSPERMOPSIS RACIBORSKII CENA 302 e CENA 303. 2015. Inicia o ... 10th European Workshop on the Molecular Biology of Cyanobacteria!.Genomic and genotypic characterization of Cylindrospermopsis ... Genomic and genotypic characterization of Cylindrospermopsis raciborskii. In: 10TH EUROPEAN WORKSHOP ON THE MOLECULAR BIOLOGY ...
Cylindrospermopsis raciborskii and Cosmarium sphagnicolum were found in the reservoir and were also distributed along the river ... Cylindrospermopsis raciborskii (Wolosz.) Seenaya & Subba Raju, in Desikachary, Taxonomy and Biology of Blue-green Algae 52:57. ...
Cylindrospermopsis *Microcystis causes deadly infection in dogs and liver cancers in humans. ...
Next article in issue: Photosynthetic characteristics of two Cylindrospermopsis raciborskii strains differing in their toxicity ... Next article in issue: Photosynthetic characteristics of two Cylindrospermopsis raciborskii strains differing in their toxicity ...
... dominant taxa belonged to Cylindrospermopsis raciborskii, Limnothrix redekei, Anabaenopsis elenkinii, and Microcystis spp. ...
Cylindrospermopsis, Aphanizomenon, Umezakia. Neurotoxins. anatoxin-a. Anabaena, Plantotrix (Oscillatoria), Cylindrospermum, ...
Cylindrospermopsis. , and Microcystis. . The two documented microcystin-producing genera present were Anabaena. and Microcystis ... Cylindrospermopsis. Raciboskii. 0. 0. 1,361. 340. 0. 3,266. 0. 1,167. 1,276. 0. 0. 6,850. ...
15 Cylindrospermopsis. Non Het. - Temperature. t, t.\ t 4 b S. oC. - Ana+Aph. - Cylindrospermopsis. Non Het. - Temperature. ... Cylindrospermopsis. Non Het. /. - Ana+Aph. - Cylindrospermopsis. Non Het. Figure 3-19. Trends of biovolume of three groups of ... Cylindrospermopsis sp.; other non-heterocystous cyanobacteria, LAG (A) and. LEO (B). I,, I i. LAG. --000_ 1. e e e e e e e e e ... Aph Cylindrospermopsis Non Het LAG 0 2 4 6 8 10 12 Biovolume (106 m3 ml1) Ana+Aph Cylindrospermopsis Non HetLEO. PAGE 35. 35 A ...
  • Cylindrospermopsis is a planktonic genus of filamentous cyanobacteria known for its blooms in eutrophic waters. (wikipedia.org)
  • Genus - Cylindrospermopsis This genus of filamentous cyanobacteria is found in terrestrial and aquatic environments. (wikipedia.org)
  • Cylindrospermopsis raciborskii is a filamentous cyanobacteria with the ability to fix nitrogen by converting atmospheric nitrogen (N2) into ammonia (NH3), thus distinguishing it as a heterocyst. (wikipedia.org)
  • Multiplex PCR assay for Cylindrospermopsis raciborskii and cyanobacteria. (forumkharkov.com)
  • They have been isolated from a wide range of filamentous cyanobacteria species including Aphanizomenon flos-aquae NH-5 ( 22 ), Lyngbya wollei ( 29 ), and Cylindrospermopsis raciborskii ( 17 ). (asm.org)
  • This study determined the presence and relative abundance of 4 potentially toxic cyanobacteria taxa (Microcystis aeruginosa, Cylindrospermopsis raciborskii, Lyngbya wollei, and Aphanizomenon/ Anabaena spp. (uncg.edu)
  • Several clusters of genes involved in CYN production have been described in different CYN + cyanobacteria genera, named aoa for Aphanizomenon and cyr for Cylindrospermopsis and others strains. (scirp.org)
  • We studied the composition of bacterial communities associated with three bloom-forming freshwater phytoplankton species, the diatom Aulacoseira granulata and the cyanobacteria Microcystis aeruginosa and Cylindrospermopsis raciborskii. (diva-portal.org)
  • 1.â We propose that the appearance and establishment of Nostocales (cyanobacteria) species of the genera Aphanizomenon and Cylindrospermopsis in the warm subtropical Lake Kinneret (Sea of Galilee, Israel) from 1994 was linked to changes in climate conditions and summer nitrogen (N) availability. (usda.gov)
  • A study of polymethoxy-1-alkenes in Raphidiopsis (Cylindrospermopsis) raciborskii and Aphanizomenon gracile isolated in Poland. (nih.gov)
  • were distinctly separated from the sxtA genes of Anabaena, Aphanizomenon, Lyngbya , and Cylindrospermopsis . (springer.com)
  • In recent years the cylindrospermopsin (tricyclic guanidinyl hydroxymethyluracil)-producing organisms Aphanizomenon ovalisporum, Cylindrospermopsis raciborskii, and Umezakia natans have been inhabiting polluted fresh waters. (eurekamag.com)
  • The gene clusters (cyr genes) involved in CYN synthesis have been completely described in Cylindrospermopsis raciborskii AWT205 [6] and CS-505 [7] , Aphanizomenon sp. (scirp.org)
  • The highest concentrations of toxin occurred in the Jucazinho reservoir with the phytoplankton containing the potentially CYN-producing Cylindrospermopsis raciborskii and Sphaerospermopsis aphanizomenoides (previously known as Aphanizomenon aphanizomenoides). (scirp.org)
  • Cytometry analysis showed high cyanobacterial abundance, while metagenomics identified an average of 10.6% of cyanobacterial sequences, and demonstrated the presence of Microcystis , Cylindrospermopsis , and toxin coding genes in all ponds. (frontiersin.org)
  • The 16S rDNA clone libraries sequences matched with nine different known cyanobacterial genera available in NCBI, identified as Anabaena , Brasilonema , Cylindrospermopsis , Limnococcus , Microcystis , Nostoc , Pseudanabaena , Synechococcus and Woronichinia . (scirp.org)
  • blue-green algae, such as rapidly reproducing microcystis and cylindrospermopsis. (jackkruse.com)
  • The groups Microcystis , Anabaena and Cylindrospermopsis and their associated toxins - microcystins, anatoxin-a and cylindrospermopsin, respectively - all occur in Florida freshwater systems, including those used for drinking water. (myfwc.com)
  • The occurrence of toxic cyanobacterium Cylindrospermopsis raciborskii and its toxin cylindrospermopsin in the Huong River, Thua Thien Hue province, Vietnam Environ Monit Assess. (blackspring.com.br)
  • First report of neurotoxic effect of the cyanobacterium Cylindrospermopsis raciborskii on the motility of trematode metacercariae. (semanticscholar.org)
  • The bloom-forming and toxin-producing cyanobacterium Cylindrospermopsis raciborskii-recently observed in a tributary of Lake Michigan, and on the increase in northern latitudes. (climatecrocks.com)
  • The interactive effects of fertilization and Daphnia genotype on algal biomass were mediated by the positive response of the invasive and toxic cyanobacterium Cylindrospermopsis raciborskii and an associated cyanotoxin (saxitoxin) to nutrient enrichment. (confex.com)
  • PCR primers for both genes were designed to exclusively amplify DNA from Cylindrospermopsis species, and an additional primer set for cpcBA -IGS was designed to specifically amplify the American C. raciborskii strains. (asm.org)
  • Cylindrospermopsin occurrence in two German lakes and preliminary assessment of toxicity and toxin production of Cylindrospermopsis raciborskii (Cy. (nih.gov)
  • Cylindrospermopsis raciborskii CS-505 (heterocystous, nitrogen fixing) and Raphidiopsis brookii D9 (non-N 2 fixing) produce the nitrogenous toxins cylindrospermopsin (CYN) and paralytic shellfish toxins (PSTs), respectively. (mdpi.com)
  • Cylindrospermopsis raciborskii is a bloom-forming cyanobacterium found in both tropical and temperate climates which produces cylindrospermopsin, a potent hepatotoxic secondary metabolite. (blackspring.com.br)
  • Cylindrospermopsis raciborskii CS-505 is a cylindrospermopsin-producing strain from Australia, whereas Raphidiopsis brookii D9 from Brazil synthesizes neurotoxins associated with paralytic shellfish poisoning (PSP). (jove.com)
  • It has been found that most species of algae (also called phytoplankton) can produce various cyanotoxins including microcystins, cylindrospermopsis, and nodularin , which have a direct impact on the water treatment processes and consequently the health of public [ 1 ]. (hindawi.com)
  • Cylindrospermopsis raciborskii (Woloszyn´ ska) Seenayya et Subba Raju 1972 es una especie capaz de generar diversas toxinas que impactan negativamente sobre la calidad del agua destinada al consumo humano así como a otros usos de la misma. (bvsalud.org)
  • This Cylindrospermopsis raciborskii (Woloszynska) Seenaya and Subba Raju bloom was treated with an algaecide releasing the intracellular toxin [1,2]. (scirp.org)
  • The type species is the tropical Cylindrospermopsis raciborskii (Woloszynska) Seenayya & Subbaraju. (wikipedia.org)
  • Species - Cylindrospermopsis raciborskii This bacterium is a freshwater cyanobacterium often found in tropical regions but can be also found in more temperate locations such as the Great Lakes located in North America. (wikipedia.org)
  • The principal species for CYN production is Cylindrospermopsis raciborskii, K. (forumkharkov.com)
  • For these 16 species, each species had one specific band, except for Cylindrospermopsis raciborskii (bands 11 and 13). (forumkharkov.com)
  • Isolates of the toxic, N 2 -fixing species Cylindrospermopsis raciborskii from various geographic locations were analyzed with respect to their genetic diversity based on the nifH and cpcBA -IGS genes. (asm.org)
  • Cylindrospermopsis raciborskii is a cosmopolitan, nitrogen (N 2 )-fixing cyanobacterial species found in temperate to tropical freshwater habitats. (asm.org)
  • Cylindrospermopsis raciborskii (Woloszyn´ ska) Seenayya et SubbaRaju 1972 is a species capable of generating toxins that negatively impact on drinking water quality as well as other water uses. (bvsalud.org)
  • The biovolume of the heterocystous species Cylindrospermopsis sp. (ufl.edu)
  • The inorganic N to inorganic P ratio of 5.4 after the drought was indicative of N limitation, and the phytoplankton assemblage was dominated by nitrogen-fixing species, especially Cylindrospermopsis sp. (scielo.org.za)
  • Cylindrospermopsis raciborskii is a freshwater cyanobacterium. (wikipedia.org)
  • Cylindrospermopsis raciborskii, a freshwater cyanobacterium of tropical origin, is not only increasingly found in (sub) tropical water bodies, but also in temperate regions. (nih.gov)
  • Cylindrospermopsis raciborskii is a freshwater cyanobacterium producing bloom events and toxicity in drinking water source reservoirs. (ucsd.edu)
  • As previously described [ 21 ], the cells belonging to the genus Cylindrospermopsis could either be cylindrical filaments with terminal nitrogen fixation structures (heterocysts) (Fig. 1a-e ) or resistant cells (akinetes). (biomedcentral.com)
  • Members of the genus Cylindrospermopsis represent an important environmental and health concern. (biomedcentral.com)
  • In the present work, we attempted to characterize two isolates of Cylindrospermopsis raciborskii, LP1 and LP2, from Peri Lagoon, for their morphology, ecophysiology, and toxin profiles. (blackspring.com.br)
  • The role of nitrogen in promoting the toxic cyanophyte Cylindrospermopsis raciborskii in a subtropical water reservoir. (publish.csiro.au)
  • T) in the Guarapiranga reservoir and Cylindrospermopsis raciborskii (Wolosz. (bvsalud.org)
  • Cylindrospermopsis raciborskii, a problem causing cyanobacterium capable of releasing potent toxins, has become increasingly prevalent in South African freshwaters. (blackspring.com.br)
  • The second, and larger, bloom was dominated by the nitrogen-fixing cyanobacterium Cylindrospermopsis sp. (ufl.edu)
  • This paper presents a case study of a massive fish mortality during a Cylindrospermopsis raciborskii bloom in Aleksandrovac Lake, Serbia in mid-December 2012. (bvsalud.org)
  • Cylindrospermopsis raciborskii in three central Florida lakes: population dynamics, controls, and management implications. (springer.com)
  • Slike oppblomstringer kan utgjøre et problem i drikkevannskilder eller vann brukt til rekreasjon, fordi de kan produsere en rekke forskjellige giftstoffer og/eller lukt-/smakskomponenter. (fhi.no)
  • Dr. Steinman was a member of a team which discovered Cylindrospermopsis raciborskii, an invasive, toxin forming micro-organism, formerly associated with more southerly climates, surviving in a tributary of Lake Michigan. (climatecrocks.com)
  • Cylindrospermopsins (CYNs) are produced by several species of cyanobacteria including Cylindrospermopsis raciborskii (Woloszynska) Seenayya and Subba Raju. (edu.au)