• Microcystis is a genus of freshwater cyanobacteria that includes the harmful algal bloom-forming Microcystis aeruginosa. (wikipedia.org)
  • Microcystis species include: Microcystis aeruginosa Microcystis argentea Microcystis botrys Microcystis elongata Microcystis flos-aquae Microcystis holsatica Microcystis lutescens Microcystis marina Microcystis pallida Microcystis panniformis Microcystis salina Microcystis thermalis Microcystis viridis Microcystis wesenbergii Pandorina (Analogy) Rinta-Kanto JM, Ouellette AJ, Boyer GL, Twiss MR, Bridgeman TB, Wilhelm SW (June 2005). (wikipedia.org)
  • Blooms occur when nutrient levels spike in aquatic environments or nutrient levels are selective toward Microcystis aeruginosa. (kenyon.edu)
  • none]] ==Cell structure and metabolism== Microcystis aeruginosa is a unicellular, planktonic freshwater cyanobacterium. (kenyon.edu)
  • 3] Microcystis aeruginosa is light dependent and oxygenic, but cells may live under the dark anaerobic conditions for periods of time in eutrophic lakes. (kenyon.edu)
  • Microcystis aeruginosa often form blooms in eutrophic lakes and reservoirs. (kenyon.edu)
  • 6] ==Ecology== Large occurrences of Microcystis aeruginosa are regularly found at the surface of water bodies in spring and summer. (kenyon.edu)
  • Microcystins, a group of toxins are produced by Microcystis aeruginosa. (kenyon.edu)
  • For this reason fate and effects of OP in the cyanobacterium Microcystis aeruginosa were assessed from 10 nM to 5 microM OP concentration. (unboundmedicine.com)
  • TY - JOUR T1 - Fate and effects of octylphenol in a Microcystis aeruginosa culture medium. (unboundmedicine.com)
  • Deciphering the 5,172,804 bp sequence of Microcystis aeruginosa PCC 7806 has revealed the high plasticity of its genome: 11.7% DNA repeats containing more than 1,000 bases, 6.8% putative transposases and 21 putative restriction enzymes. (pasteur.fr)
  • Microcystis aeruginosa PCC 7806 appears to have adopted an evolutionary strategy relying on unusual genome plasticity to adapt to eutrophic freshwater ecosystems, a property shared by another strain of M. aeruginosa (NIES-843). (pasteur.fr)
  • Comparison with strains of M. aeruginosa and some other water bloom-forming cyanobacterial species revealed large-scale structure rearrangement and length variation at the genome level along with 36 genomic islands annotated genome-wide, which demonstrates high plasticity of the M. panniformis FACHB1757 genome and reveals that Microcystis has a flexible genome evolution. (pacb.com)
  • Microcystin-LR, Microcystis aeruginosa - CAS 101043-37-2, is a potent inhibitor of protein phosphatase 1 (IC50 = 1.7 nM) and protein phosphatase 2A (IC50 = 40 pM). (emdmillipore.com)
  • This paper describes the potential application of a freely suspended cyanobacterial biomass of Microcystis aeruginosa as a sorption material for toxic metals, cadmium (Cd) and lead (Pb) from aqueous solutions. (edu.pl)
  • This analysis revealed that the two toxic Microcystis strains were more tolerant than the non-toxic strain , with 96 hr-EC50 values of 0.70, 0.76, and 0.38 mg/L BAC-14 for toxigenic M. aeruginosa FACHB-905, toxigenic M. aeruginosa FACHB-469, and non-toxigenic M. wesenbergii FACHB-908, respectively. (bvsalud.org)
  • We monitored oligopeptide patterns of three strains of Microcystis aeruginosa under different nutrient and light conditions. (mdpi.com)
  • Comparison of UV-A photolytic and UV/TiO2 photocatalytic effects on Microcystis aeruginosa PCC7813 and four microcystin analogues: a pilot scale study. (worktribe.com)
  • To overcome this problem, the use of UV-LEDs (365 nm) for photolysis and heterogeneous photocatalysis applying TiO2 coated glass beads under UV-LED illumination (365 nm) in a pilot scale reactor for the elimination of Microcystis aeruginosa PCC7813 and four microcystin analogues (MC-LR, -LY, -LW, -LF) with a view to deployment in drinking water reservoirs was investigated. (worktribe.com)
  • UV-A (365 nm) photolysis was shown to be more effective than the UV/TiO2 photocatalytic system for the removal of Microcystis aeruginosa cells and microcystins. (worktribe.com)
  • 谢纯刚,张运林,朱广伟,何开跃,冯龙庆,蔡琳琳.人工模拟UV-B辐射对铜绿微囊藻( (jlakes.org)
  • XIE Chungang,ZHANG Yunlin,ZHU Guangwei,HE Kaiyue,FENG Longqing,CAI Linlin.Effect on the growth of Microcystis aeruginosa by the simulated continuous UV-B radiation. (jlakes.org)
  • Sinivetika Microcystis aeruginosa rakkudest eraldatud fükobiliproteiin fükotsüaniin. (wikipedia.org)
  • Results showed that ofloxacin presented an inhibitory effect on the growth Microcystis aeruginosa. (unboundmedicine.com)
  • Acute toxicity: There are data for 2 trophic levels, lowest for cyanobacteria (Microcystis aeruginosa) 0.09 mg/L. (janusinfo.se)
  • We monitored water samples from a small lake as a Microcystis aeruginosa bloom developed. (cdc.gov)
  • A single cell of the blue-green algae (cyanobacteria) Microcystis aeruginosa. (lu.se)
  • NOAA has issued a new bulletin providing updated forecasts of harmful algal blooms (HABs) for the cyanobacteria Microcystis in Lake Erie on July 2, 2018. (nocafos.org)
  • Concurrent with gross necropsy findings, were the unusually large counts of the cyanobacterium (blue-green algae) Microcystis, plus some other cyanobacteria and algae. (vin.com)
  • 2013. Spatiotemporal Molecular Analysis of Cyanobacteria Blooms Reveals Microcystis-Aphanizomenon Interactions . (gleon.org)
  • Bob Heath, a limnologist at Kent State University, says the bloom is a strain of microcystis, a toxic blue-green algae. (environmentreport.org)
  • Microcystis is known to produce the potent cyclic peptide toxins called microcystins. (vin.com)
  • Microcystins are hepatotoxins produced by at least two Microcystis sp. (vin.com)
  • Hu, C., Ludsin, S.A., Martin, J.F., Dittmann, E., Lee, J (2018) Mycosporine-like amino acids (MAAs)-producing Microcystis in Lake Erie: Development of a qPCR assay and insight into its ecology Harmful Algae 77:1-10. (uni-potsdam.de)
  • Multiple toxin production in the cyanobacterium microcystis: isolation of the toxic protease inhibitor cyanopeptolin 1020" (PDF). (wikipedia.org)
  • The colonial cyanobacterium Microcystis proliferates in a wide range of freshwater ecosystems and is exposed to changing environmental factors during its life cycle. (pasteur.fr)
  • towards cyanobacterium Microcystis results from its impact on the photosynthetic apparatus and cell metabolism. (bvsalud.org)
  • Toxicity of the disinfectant benzalkonium chloride (C 14 ) towards cyanobacterium Microcystis results from its impact on the photosynthetic apparatus and cell metabolism. (bvsalud.org)
  • Quantification of toxic Microcystis spp. (wikipedia.org)
  • Microcystis blooms are often toxic, potentially fatal to animals and humans, and may cause environmental problems. (pasteur.fr)
  • citation needed] Microcystis is capable of producing large surface blooms through a combination of rapid division and buoyancy regulation by production of gas-filled vesicles. (wikipedia.org)
  • In North America, Microcystis blooms have caused issues in numerous freshwater systems over the last two decades. (wikipedia.org)
  • In 2018, the Great Lakes Center for Fresh Waters and Human Health was founded at Bowling Green State University (OH) with a focus on problems associated with Microcystis blooms in the Laurentian Great Lakes. (wikipedia.org)
  • Metabolic pathways, such as fermentation and a methionine salvage pathway, have been identified, as have genes for programmed cell death that may be related to the rapid disappearance of Microcystis blooms in nature. (pasteur.fr)
  • The cyanobacterial genus Microcystis is well known as the main group that forms harmful blooms in water. (pacb.com)
  • In this study, we examined the effects of a widely used QAC ( benzalkonium chloride -C14, BAC-14) on two toxigenic Microcystis strains and one non-toxigenic freshwater Microcystis strain and carried out an analysis focused on primary, adaptive and compensatory stress responses at apical ( growth and photosynthesis ) and metabolic levels. (bvsalud.org)
  • It is noteworthy that BAC-14 enhanced the level of extracellular microcystin production in the toxigenic Microcystis strains , although cell growth was not significantly affected. (bvsalud.org)
  • Many members of a Microcystis community can produce neurotoxins and hepatotoxins, such as microcystin and cyanopeptolin. (wikipedia.org)
  • As part of our ongoing study we could show that microcystin fulfils an important function within cells of its natural producer Microcystis . (uni-potsdam.de)
  • Meissner, S., Steinhauser, D., Dittmann, E. (2015) Metabolomic analysis indicates a pivotal role of the hepatotoxin microcystin in high light adaptation of Microcystis . (uni-potsdam.de)
  • Collectively, these data show that BAC-14 disrupted the physiological and metabolic status of Microcystis cells and stimulated the production and release of microcystin, which could result in damage to aquatic systems. (bvsalud.org)
  • In all the cultures studied here, the main species that reproduced was "Microcystis sp. (uvigo.es)
  • A strain of Microcystis, M. panniformis FACHB1757, was isolated from Meiliang Bay of Lake Taihu in August 2011. (pacb.com)
  • Complete genome sequence and genomic characterization of Microcystis panniformis FACHB 1757 by third-generation sequencing. (pacb.com)
  • All events showed evidence of a connection with an algal bloom of Microcystis . (vin.com)
  • The genus Microcystis derives from the Greek mikros (small) + kystis (bladder) As the etymological derivation implies, Microcystis is characterized by small cells (a few micrometers in diameter), possessing gas-filled vesicles (also lacking individual sheaths). (wikipedia.org)
  • Rapporten van het Instituut voor Natuur en Bosonderzoek 2018 (13), Instituut voor Natuur- en Bosonderzoek, Brussel. (vlaanderen.be)
  • In nature, Microcystis can exist as single cells or in large colonies containing many cells. (wikipedia.org)
  • These hollow, gas-filled structures can keep Microcystis cells close to the surface of water body, where there is optimal light and oxygen for growth. (kenyon.edu)
  • The water from Salas showed the greatest microalgal growth (0.15 × 106 cells/ml to 31.70 × 106 cells/ml of "Microcystis sp. (uvigo.es)
  • Analysis of water samples from all three events documented the presence of Microcystis at high levels. (vin.com)
  • In South Africa, Hartebeestpoort Dam is highly impacted by Microcystis because of elevated phosphate and nitrate levels flowing from the sewers of Johannesburg, one of the few cities in the world that straddles a continental watershed divide, so lies upstream of major dams and rivers. (wikipedia.org)
  • Recent efforts have suggested a combination of effective carbon-concentrating mechanisms and a potential ability to use urea as both a carbon and nitrogen source allows Microcystis to persist under these high-pH conditions. (wikipedia.org)
  • Microcystis has also been reported to produce a compound (or compounds) that can have endocrine-disrupting effects. (wikipedia.org)
  • 张艳晴,杨桂军,秦伯强,周健,许慧萍,王颖,吴雅丽.光照强度对水华微囊藻( Microcystis (jlakes.org)
  • ZHANG Yanqing,YANG Guijun,QIN Boqiang,ZHOU Jian,XU Huiping,WANG Ying,WU Yali.Effect of light intensity on growth of Microcystis flos-aquae colonies size. (jlakes.org)
  • To understand the effect of light intensity on growth of Microcystis colonies size, a study was conducted on the effect of different light intensity on the colony size growth of Microcystis flos-aquae which was one of the dominant species of Microcystis bloom in Lake Taihu. (jlakes.org)
  • Species Detail - Microcystis wesenbergii - Species information displayed is based on all datasets. (biodiversityireland.ie)
  • Recent efforts have suggested a combination of effective carbon-concentrating mechanisms and a potential ability to use urea as both a carbon and nitrogen source allows Microcystis to persist under these high-pH conditions. (wikipedia.org)
  • This study explained why light intensity changed in the field and high light intensity were in favor of the formation of Microcystis bloom in summer in Lake Taihu. (jlakes.org)
  • The highest TP threshold (50 µg l −1 ) was observed for Microcystis in polyhumic lakes, and the lowest (10 µg l −1 ) for Planktothrix in oligohumic lakes. (springer.com)
  • In this study, we examined the effects of a widely used QAC ( benzalkonium chloride -C14, BAC-14) on two toxigenic Microcystis strains and one non-toxigenic freshwater Microcystis strain and carried out an analysis focused on primary, adaptive and compensatory stress responses at apical ( growth and photosynthesis ) and metabolic levels. (bvsalud.org)
  • Culprits range from microscopic plankton like Microcystis to large seaweeds. (nwf.org)
  • In nature, Microcystis can exist as single cells or in large colonies containing many cells. (wikipedia.org)
  • Light intensity was an essential ecological factor affecting the growth of Microcystis . (jlakes.org)
  • The photosynthetic activities of the Microcystis , assessed via Fv/Fm values, were significantly suppressed under 0.4 mg/L BAC-14. (bvsalud.org)
  • Both total MC-LR and CYN were correlated with particulate N. We found Microcystis MC-LR production and release was affected by salinity only in the N:P 50 treatment. (datadryad.org)
  • Microcystis has also been reported to produce a compound (or compounds) that can have endocrine-disrupting effects. (wikipedia.org)
  • DNA copy number of the Microcystis-specific 16S rRNA and toxin biosynthesis genes, mcyE and mcyB, were measured. (nwu.ac.za)