Cylindrospermopsis: A form-genus of CYANOBACTERIA in the order Nostocales, characterized by thin trichomes, cylindrical akinetes, and terminal heterocysts.Aphanizomenon: A form-genus of planktonic CYANOBACTERIA in the order Nostocales.Saxitoxin: 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.Cyanobacteria: 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.UracilMarine Toxins: 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.Fresh Water: Water containing no significant amounts of salts, such as water from RIVERS and LAKES.Phytoplankton: 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.Water Microbiology: The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.Butylated Hydroxytoluene: A di-tert-butyl PHENOL with antioxidant properties.Microcystins: 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.Microcystis: A form-genus of CYANOBACTERIA in the order Chroococcales. Many species are planktonic and possess gas vacuoles.Recreation: Activity engaged in for pleasure.Harmful Algal Bloom: 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.Eutrophication: 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.BornanesOdors: The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)Rivers: Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).Naphthols: 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.BrazilMelastomataceae: A plant family of the order Myrtales, subclass Rosidae, class Magnoliopsida composed of tropical plants with parallel-nerved leaves.Caves: Geological formations consisting of underground enclosures with access from the surface.Eleocharis: A plant genus of the family CYPERACEAE.Environmental Remediation: 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.Trihalomethanes: Methanes substituted with three halogen atoms, which may be the same or different.Mesorhizobium: 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.Heptanoic Acids: 7-carbon saturated monocarboxylic acids.Sinorhizobium: 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)Software: Sequential operating programs and data which instruct the functioning of a digital computer.Carbonates: 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)Bahamas: 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)Calcium Carbonate: 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.Nostoc: 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.Melopsittacus: A genus, commonly called budgerigars, in the family PSITTACIDAE. In the United States they are considered one of the five species of PARAKEETS.Persea: A plant genus in the LAURACEAE family. The tree, Persea americana Mill., is known for the Avocado fruit, the food of commerce.Gastroenterostomy: A variety of surgical reconstructive procedures devised to restore gastrointestinal continuity, The two major classes of reconstruction are the Billroth I (gastroduodenostomy) and Billroth II (gastrojejunostomy) procedures.Ecology: The branch of science concerned with the interrelationship of organisms and their ENVIRONMENT, especially as manifested by natural cycles and rhythms, community development and structure, interactions between different kinds of organisms, geographic distributions, and population alterations. (Webster's, 3d ed)Sequence Analysis, DNA: A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.Protein Tyrosine Phosphatases, Non-Receptor: A subcategory of protein tyrosine phosphatases that occur in the CYTOPLASM. Many of the proteins in this category play a role in intracellular signal transduction.GATA5 Transcription Factor: A GATA transcription factor that is expressed predominately in SMOOTH MUSCLE CELLS and is involved in the CELL DIFFERENTIATION of CARDIAC MYOCYTES. In the developing heart, GATA5 becomes restricted to the ENDOCARDIUM and regulates transcription of genes such as cardiac TROPONIN C.Arabinonucleosides: Nucleosides containing arabinose as their sugar moiety.Pelvic Floor: Soft tissue formed mainly by the pelvic diaphragm, which is composed of the two levator ani and two coccygeus muscles. The pelvic diaphragm lies just below the pelvic aperture (outlet) and separates the pelvic cavity from the PERINEUM. It extends between the PUBIC BONE anteriorly and the COCCYX posteriorly.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.Cisterna Magna: One of three principal openings in the SUBARACHNOID SPACE. They are also known as cerebellomedullary cistern, and collectively as cisterns.In Situ Nick-End Labeling: An in situ method for detecting areas of DNA which are nicked during APOPTOSIS. Terminal deoxynucleotidyl transferase is used to add labeled dUTP, in a template-independent manner, to the 3 prime OH ends of either single- or double-stranded DNA. The terminal deoxynucleotidyl transferase nick end labeling, or TUNEL, assay labels apoptosis on a single-cell level, making it more sensitive than agarose gel electrophoresis for analysis of DNA FRAGMENTATION.Apoptosis: One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.DNA Fragmentation: Splitting the DNA into shorter pieces by endonucleolytic DNA CLEAVAGE at multiple sites. It includes the internucleosomal DNA fragmentation, which along with chromatin condensation, are considered to be the hallmarks of APOPTOSIS.Environmental Exposure: The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.Liver: A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.Kupffer Cells: Specialized phagocytic cells of the MONONUCLEAR PHAGOCYTE SYSTEM found on the luminal surface of the hepatic sinusoids. They filter bacteria and small foreign proteins out of the blood, and dispose of worn out red blood cells.Microscopy, Electron: Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.Hepatocytes: The main structural component of the LIVER. They are specialized EPITHELIAL CELLS that are organized into interconnected plates called lobules.Mice, Inbred C57BLSaint Vincent and the Grenadines: A self-governing state of the Windward Islands in the West Indies, comprising Saint Vincent and the northern islets of the Grenadines. Its capital is Kingstown. It is one of the original homes of the Carib Indians supposed to have been sighted by Columbus in 1498. It was in English hands from 1627 till held by the French 1779-83. Saint Vincent subsequently became a British possession and, with other nearby British territories, was administered by the Governor of the Windward Islands till 1959. It attained a measure of independence in 1969 but achieved full independence as Saint Vincent and the Grenadines in 1979. Saint Vincent was the 4th century Spanish martyr on whose feast day Columbus discovered the island. Grenadines is derived from the Spanish kingdom of Granada. (From Webster's New Geographical Dictionary, 1988, p1054 & The Europa World Year Book 1993, p2441)Vesicovaginal Fistula: An abnormal anatomical passage between the URINARY BLADDER and the VAGINA.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Crassulaceae: The stonecrop plant family of the order ROSALES, subclass Rosidae, class Magnoliopsida that grow in warm, dry regions. The leaves are thick. The flower clusters are red, yellow, or white.Allergy and Immunology: A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder.Denial (Psychology): Refusal to admit the truth or reality of a situation or experience.Lakes: Inland bodies of still or slowly moving FRESH WATER or salt water, larger than a pond, and supplied by RIVERS and streams.Climate Change: Any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). It may result from natural factors such as changes in the sun's intensity, natural processes within the climate system such as changes in ocean circulation, or human activities.Climate: The longterm manifestations of WEATHER. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)ArizonaBibliometrics: The use of statistical methods in the analysis of a body of literature to reveal the historical development of subject fields and patterns of authorship, publication, and use. Formerly called statistical bibliography. (from The ALA Glossary of Library and Information Science, 1983)Factor XIa: Activated form of factor XI. In the intrinsic pathway, Factor XI is activated to XIa by factor XIIa in the presence of cofactor HMWK; (HIGH MOLECULAR WEIGHT KININOGEN). Factor XIa then activates factor IX to factor IXa in the presence of calcium.Publications: Copies of a work or document distributed to the public by sale, rental, lease, or lending. (From ALA Glossary of Library and Information Science, 1983, p181)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)Journal Impact Factor: A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.Marine Biology: The study of the origin, structure, development, growth, function, genetics, and reproduction of organisms which inhabit the OCEANS AND SEAS.Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Inventions: A novel composition, device, or process, independently conceived de novo or derived from a pre-existing model.Cellulose: A polysaccharide with glucose units linked as in CELLOBIOSE. It is the chief constituent of plant fibers, cotton being the purest natural form of the substance. As a raw material, it forms the basis for many derivatives used in chromatography, ion exchange materials, explosives manufacturing, and pharmaceutical preparations.Biotechnology: Body of knowledge related to the use of organisms, cells or cell-derived constituents for the purpose of developing products which are technically, scientifically and clinically useful. Alteration of biologic function at the molecular level (i.e., GENETIC ENGINEERING) is a central focus; laboratory methods used include TRANSFECTION and CLONING technologies, sequence and structure analysis algorithms, computer databases, and gene and protein structure function analysis and prediction.PolynucleotidesShellfish: Aquatic invertebrates belonging to the phylum MOLLUSCA or the subphylum CRUSTACEA, and used as food.Sri LankaPhylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Injections, Epidural: The injection of drugs, most often analgesics, into the spinal canal without puncturing the dura mater.Pristinamycin: An antibiotic mixture originally isolated from Streptomyces pristinaspiralis. It is a mixture of compounds from STREPTOGRAMIN GROUP A: pristinamycin IIA and IIB and from STREPTOGRAMIN GROUP B: pristinamycin IA, pristinamycin IB, pristinamycin IC.Virginiamycin: A cyclic polypeptide antibiotic complex from Streptomyces virginiae, S. loidensis, S. mitakaensis, S. pristina-spiralis, S. ostreogriseus, and others. It consists of 2 major components, VIRGINIAMYCIN FACTOR M1 and virginiamycin Factor S1. It is used to treat infections with gram-positive organisms and as a growth promoter in cattle, swine, and poultry.Streptomyces: A genus of bacteria that form a nonfragmented aerial mycelium. Many species have been identified with some being pathogenic. This genus is responsible for producing a majority of the ANTI-BACTERIAL AGENTS of practical value.Streptogramins: A class of natural cyclic peptide antibiotics produced by certain subspecies of STREPTOMYCES. They include two structurally unrelated components, STREPTOGRAMIN GROUP A and STREPTOGRAMIN GROUP B, which generally act synergistically to inhibit bacterial growth.Streptomyces griseus: An actinomycete from which the antibiotics STREPTOMYCIN, grisein, and CANDICIDIN are obtained.Plants, Genetically Modified: PLANTS, or their progeny, whose GENOME has been altered by GENETIC ENGINEERING.Th2 Cells: Subset of helper-inducer T-lymphocytes which synthesize and secrete the interleukins IL-4, IL-5, IL-6, and IL-10. These cytokines influence B-cell development and antibody production as well as augmenting humoral responses.Th1 Cells: Subset of helper-inducer T-lymphocytes which synthesize and secrete interleukin-2, gamma-interferon, and interleukin-12. Due to their ability to kill antigen-presenting cells and their lymphokine-mediated effector activity, Th1 cells are associated with vigorous delayed-type hypersensitivity reactions.Plant Proteins: Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which VEGETABLE PROTEINS is available.Plant Leaves: Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)Authorship: The profession of writing. Also the identity of the writer as the creator of a literary production.Antiprotozoal Agents: Substances that are destructive to protozoans.Leishmaniasis, Visceral: A chronic disease caused by LEISHMANIA DONOVANI and transmitted by the bite of several sandflies of the genera Phlebotomus and Lutzomyia. It is commonly characterized by fever, chills, vomiting, anemia, hepatosplenomegaly, leukopenia, hypergammaglobulinemia, emaciation, and an earth-gray color of the skin. The disease is classified into three main types according to geographic distribution: Indian, Mediterranean (or infantile), and African.Leishmaniasis: A disease caused by any of a number of species of protozoa in the genus LEISHMANIA. There are four major clinical types of this infection: cutaneous (Old and New World) (LEISHMANIASIS, CUTANEOUS), diffuse cutaneous (LEISHMANIASIS, DIFFUSE CUTANEOUS), mucocutaneous (LEISHMANIASIS, MUCOCUTANEOUS), and visceral (LEISHMANIASIS, VISCERAL).Leishmania donovani: A parasitic hemoflagellate of the subgenus Leishmania leishmania that infects man and animals and causes visceral leishmaniasis (LEISHMANIASIS, VISCERAL). The sandfly genera Phlebotomus and Lutzomyia are the vectors.Peer Group: Group composed of associates of same species, approximately the same age, and usually of similar rank or social status.Video Games: A form of interactive entertainment in which the player controls electronically generated images that appear on a video display screen. This includes video games played in the home on special machines or home computers, and those played in arcades.Videotape Recording: Recording of visual and sometimes sound signals on magnetic tape.Dictionaries, MedicalDictionaries as Topic: Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.Dictionaries, ChemicalTerminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.

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)

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

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

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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)

*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 ...

*Cylindrospermopsis raciborskii

Species - Cylindrospermopsis raciborskii This bacterium is a freshwater cyanobacterium often found in tropical regions but can ... 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 Factsheet". Babu B, Wu JT (December 2008). "Production of Natural Butylated Hydroxytoluene as an ...

*Cyanotoxin

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 ...

*Palm Island mystery disease

Cylindrospermopsis raciborskii (Woloszynska) Seenaya and Subba Raju isolated from a domestic water supply reservoir". Appl. ... "Identification of genes implicated in toxin production in the cyanobacterium Cylindrospermopsis raciborskii". Environ. Toxicol ... of excessive doses of copper sulfate to the water supply of Solomon Dam to target a cyanobacteria bloom of Cylindrospermopsis ...

*Phenols

The three cyanobacteria Microcystis aeruginosa, Cylindrospermopsis raciborskii and Oscillatoria sp. are the subject of research ...

*Cylindrospermopsin

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 ...

*Barcoo fever

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. ...

*Butylated hydroxytoluene

Phytoplankton, including the green algae Botryococcus braunii, as well as three different cyanobacteria (Cylindrospermopsis ...

*List of MeSH codes (B03)

Cylindrospermopsis MeSH B03.440.475.100.500 --- Microcystis MeSH B03.440.475.100.550 --- Nodularia MeSH B03.440.475.100.575 - ...
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 ...
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). ...
Home Cyn Home. India, Switzerland, Life and everything in between. Food, decor and lifestyle of an expat in a multicultural relationship.
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 ...
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Dyrnu oedd y dâsg fawr olaf or flwyddyn yn yr ardal. Dechreuai hyn yn ystod mis Medi ambell flwyddyn, ond yn hwyrach fel arfer. Byddain dyrnu drachefn yn ystod Ionawr, Chwefror ac ambell dro, Mawrth. Efallai mair rheswm am i hyn ddigwydd ym Mawrth yn 1895 oedd bod eira ar y ddaear bron drwy Ionawr, a rhew tan ganol Chwefror. Byddai Willaim yn dweud bod gwas Moelfra yn helpu gydar dasg o ddyrnu ar y ffermydd cyfagos, ond byth yn dweud pwy fyddain helpu ym Moelfre. Enwai William y math o gnwd a ddyrnwyd ym Moelfra, ond nid felly pan fyddair dyrnwr yn y ffermydd cyfagos - dim ond "dyrnu yn yr Hendre" ayyb. Ar yr 21 Chwefror 1867 dechreuodd ddyrnu ceirch, ac ar yr 8fed o Fawrth bun dyrnu gwenith. Yn 1886 roedd cyn hwyred â mis Mai arno yn gorffen dyrnu ceirch. Yn 1887, Mai 16 Owen Jones yn gorphen dyrnu yr haidd. Talais ddau swllt ar bymtheg a chwech iddo. Yn 1893 roedd yn dyrnu haidd ym Moelfra cyn symud ymlaen i Bogelus Bach ar Gilfach; ar Dachwedd 6ed,1893, Wil yn sal, John Bogelus Bach ...
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 ...
... 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 ...
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. ...
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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 ...

Cylindrospermopsis - WikipediaCylindrospermopsis - Wikipedia

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 ...
more infohttps://en.wikipedia.org/wiki/Cylindrospermopsis

Cylindrospermopsis raciborskii - WikipediaCylindrospermopsis raciborskii - Wikipedia

Species - Cylindrospermopsis raciborskii This bacterium is a freshwater cyanobacterium often found in tropical regions but can ... 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 Factsheet". Babu B, Wu JT (December 2008). "Production of Natural Butylated Hydroxytoluene as an ...
more infohttps://en.wikipedia.org/wiki/Cylindrospermopsis_raciborskii

Cylindrospermopsis raciborskii classification essayCylindrospermopsis raciborskii classification essay

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). ...
more infohttp://forumkharkov.com/u4nh3r1g5.html

Cylindrospermopsin occurrence in two German lakes and preliminary assessment of toxicity and toxin production of...Cylindrospermopsin occurrence in two German lakes and preliminary assessment of toxicity and toxin production of...

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 ( ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/14559084?dopt=Abstract

Toxins  | Free Full-Text | Impact of Nitrogen Sources on Gene Expression and Toxin Production in the Diazotroph...Toxins | Free Full-Text | Impact of Nitrogen Sources on Gene Expression and Toxin Production in the Diazotroph...

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 ...
more infohttp://www.mdpi.com/2072-6651/6/6/1896/htm

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...

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 ...
more infohttps://scripps.ucsd.edu/biblio/complete-genome-sequence-cylindrospermopsin-producing-cyanobacterium-cylindrospermopsis

Effects of Daphnia exudates and sodium octyl sulphates on filament morphology and cell wall thickness of Aphanizomenon gracile ...Effects of Daphnia exudates and sodium octyl sulphates on filament morphology and cell wall thickness of Aphanizomenon gracile ...

Cylindrospermopsis raciborskii (Nostocales) and Planktothrix agardhii (Oscillatoriales). A1 Journal article (refereed) ... Cylindrospermopsis raciborskii (Nostocales) and Planktothrix agardhii (Oscillatoriales) ...
more infohttp://research.abo.fi/converis/portal/Publication/17464656?auxfun=share&lang=en_GB

Cyanotoxin - WikipediaCyanotoxin - Wikipedia

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 ...
more infohttps://en.wikipedia.org/wiki/Cyanotoxin

CyanobacteriaCyanobacteria

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 ...
more infohttp://tolweb.org/tree?group=Cyanobacteria

Marine Drugs  | Free Full-Text | Recreational Exposure to Low Concentrations of Microcystins During an Algal Bloom in a Small...Marine Drugs | Free Full-Text | Recreational Exposure to Low Concentrations of Microcystins During an Algal Bloom in a Small...

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. ...
more infohttp://www.mdpi.com/1660-3397/6/2/389/htm

Use of aryl carbamates in agriculture and other plant-related areas - North Carolina State UniversityUse of aryl carbamates in agriculture and other plant-related areas - North Carolina State University

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 ...
more infohttp://www.freepatentsonline.com/9439436.html

Final Report | Development and application of a fiber optic array system for detection and enumeration of potentially toxic...Final Report | Development and application of a fiber optic array system for detection and enumeration of potentially toxic...

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 ...
more infohttps://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.abstractDetail/abstract/8761/report/F

Algal Bloom-Associated Disease Outbreaks Among Users of Freshwater Lakes - United States, 2009-2010Algal Bloom-Associated Disease Outbreaks Among Users of Freshwater Lakes - United States, 2009-2010

... then Cylindrospermopsis raciborskii, Aphanizomenon spp., and Planktolyngbya limnetica. Four days after the date of last ...
more infohttps://www.cdc.gov/mmwr/preview/mmwrhtml/mm6301a3.htm?s_cid=mm6301a3_w

Algal Bloom-Associated Disease Outbreaks Among Users of Freshwater Lakes - United States, 2009-2010Algal Bloom-Associated Disease Outbreaks Among Users of Freshwater Lakes - United States, 2009-2010

... then Cylindrospermopsis raciborskii, Aphanizomenon spp., and Planktolyngbya limnetica. Four days after the date of last ...
more infohttps://www.cdc.gov/mmwr/preview/mmwrhtml/mm6301a3.htm

Cyanobacteria BacteriaCyanobacteria Bacteria

Cylindrospermopsis *Microcystis causes deadly infection in dogs and liver cancers in humans. ...
more infohttp://www.gopetsamerica.com/bio/bacteria/cyanobacteria.aspx

Phytoplankton flora of two rivers in Southeast Brazil: Paraibuna and Pomba Rivers, Minas GeraisPhytoplankton flora of two rivers in Southeast Brazil: Paraibuna and Pomba Rivers, Minas Gerais

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. ...
more infohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000300009&lng=en&nrm=iso&tlng=en

IntroductionIntroduction

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. ...
more infohttps://stacks.cdc.gov/view/cdc/4054/cdc_4054_DS3.txt

Phytoplankton bloom dynamics in a nitrogen-limited subtropical lakePhytoplankton bloom dynamics in a nitrogen-limited subtropical lake

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 ...
more infohttps://ufdc.ufl.edu/UFE0042189/00001

Breakage of cyanobacterial filaments by small- and large-sized Daphnia: are there any temperature-dependent differences? |...Breakage of cyanobacterial filaments by small- and large-sized Daphnia: are there any temperature-dependent differences? |...

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 ...
more infohttps://link.springer.com/article/10.1007/s10750-015-2436-5

Guidelines for the Integrated Management of the Watershed - Phytotechnology and EcohydrologyGuidelines for the Integrated Management of the Watershed - Phytotechnology and Ecohydrology

Cylindrospermopsis, Aphanizomenon, Umezakia. Neurotoxins. anatoxin-a. Anabaena, Plantotrix (Oscillatoria), Cylindrospermum, ...
more infohttp://www.unep.or.jp/ietc/Publications/Freshwater/FMS5/8/B_1.asp

Exposure of rural households to toxic cyanobacteria in container-stored waterExposure of rural households to toxic cyanobacteria in container-stored water

These are Microcystis spp., Oscillatoria spp., Anabaena spp., Cylindrospermopsis spp., Aphanizomenon spp., Nodularia spp. and ...
more infohttp://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1816-79502008000500013&lng=es&nrm=iso&tlng=es

CRISPRdirect update cyanobase.md · GitHubCRISPRdirect update cyanobase.md · GitHub

Cylindrospermopsis raciborskii CS-505 genome, GCA_000175835.1. *Raphidiopsis brookii D9 genome, GCA_000175855.1 ...
more infohttps://gist.github.com/meso-cacase/ef314e1e2ac4399fe20cd50fec77ce24

Currículo do Sistema de Currículos Lattes (Vinicius Augusto Carvalho de Abreu)Currículo do Sistema de Currículos Lattes (Vinicius Augusto Carvalho de Abreu)

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 ...
more infohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?metodo=apresentar&id=K4139855U6