Results 211 to 220 of about 42,064 (266)
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Cytotoxicity of Cyanobacterium Microcystis aeruginosa
Journal of Veterinary Medicine, Series B, 1992SummaryCytotoxic effects of crude extracts and fractions of the purification steps towards Microcystin‐LR (MCYST‐LR) were investigated in vitro. Cytoxicity was evaluated by measure of lactate dehydrogenase liberation of Chang liver cells and by hemolysis. Crude extracts of strain PCC 7806 damaged the cells within a few minutes.
K, Henning, J, Cremer, H, Meyer
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Science of the Total Environment
Microcystis, a type of cyanobacteria known for producing microcystins (MCs), is experiencing a global increase in blooms. They have been recently recognized as potential contributors to the widespread of antibiotic resistance genes (ARGs).
Wenhui Ji +5 more
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Microcystis, a type of cyanobacteria known for producing microcystins (MCs), is experiencing a global increase in blooms. They have been recently recognized as potential contributors to the widespread of antibiotic resistance genes (ARGs).
Wenhui Ji +5 more
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Journal of Applied Phycology, 2011
To elucidate the changes in the proportions of microcystin (MC)-producing Microcystis, non-MC-producing Microcystis and Anabaena strains during cyanobacteria blooms, we compared their fitness under different initial biomass ratios. Culture experiments were carried out with three cyanobacterial strains: single-celled toxic Microcystis aeruginosa PCC7806
Yinxia Li, Dunhai Li
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To elucidate the changes in the proportions of microcystin (MC)-producing Microcystis, non-MC-producing Microcystis and Anabaena strains during cyanobacteria blooms, we compared their fitness under different initial biomass ratios. Culture experiments were carried out with three cyanobacterial strains: single-celled toxic Microcystis aeruginosa PCC7806
Yinxia Li, Dunhai Li
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Fermentation in the unicellular cyanobacterium Microcystis PCC7806
Archives of Microbiology, 1994The cyanobacterium Microcystis PCC7806 fermented endogenously stored glycogen to ethanol, acetate, CO2, and H2 when incubated anaerobically in the dark. The switch from photoautotrophic to fermentative metabolism did not require de novo protein synthesis, and fermentation started immediately after cells had been transferred to dark anoxic conditions ...
Moezelaar, H.R., Stal, L.J.
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Water Research, 2021
Light availability is an important driver of algal growth and for the formation of surface blooms. The formation of Microcystis surface scum decreases the transparency of the water column and influences the vertical distribution of light intensity.
Huaming Wu +6 more
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Light availability is an important driver of algal growth and for the formation of surface blooms. The formation of Microcystis surface scum decreases the transparency of the water column and influences the vertical distribution of light intensity.
Huaming Wu +6 more
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B. Clave para la identificación de las especies de Microcystis 1a. Colonias esféricas o irregulares, mucílago hialino, conspicuo, firme, delimitante, con contorno visible…………… Microcystis wesenbergii 1b. Colonias esféricas o irregulares, mucílago hialino, difluente…………………..………………………………..2 2a. Colonias clatradas o no, mucílago amplio.
Cadavid González, Sara +2 more
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Cadavid González, Sara +2 more
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Toxicological Studies on Microcystis
1981Experiments were carried out to determine whether varying toxicity of natural blooms of Microcystis is due to: a) Microcystis-bacteria interactions b) an environmental effect c) the presence of more than one strain or species of Microcystis. Partial characterization of bacteria associated with unialgal cultures, and natural blooms indicated that no ...
J. N. Eloff, A. J. Van Der Westhuizen
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Environmental Pollution, 2007
To elucidate the role of phenotype in stress-tolerant bloom-forming cyanobacterium Microcystis, two phenotypes of M. aeruginosa - unicellular and colonial strains were selected to investigate how they responded to copper stress. Flow cytometry (FCM) examination indicated that the percents of viable cells in unicellular and colonial Microcystis were 1 ...
Zhong-Xing, Wu +3 more
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To elucidate the role of phenotype in stress-tolerant bloom-forming cyanobacterium Microcystis, two phenotypes of M. aeruginosa - unicellular and colonial strains were selected to investigate how they responded to copper stress. Flow cytometry (FCM) examination indicated that the percents of viable cells in unicellular and colonial Microcystis were 1 ...
Zhong-Xing, Wu +3 more
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TAXON, 1957
Zusammenfassung Die verschiedenen Vertreter der Gattung “Microcystis” im heutigen Sinn wurden in mehrere Gattungen eingereiht. Es handelt sich um folgende: Micraloa Bias. 1833 (in Kützing 1833, typus = ? Flagellaten); Microhaloa Kütz. 1833. (Irrtum, zum ersten Mal von Rabenhorst 1865 gebraucht); Microcystis Kütz.
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Zusammenfassung Die verschiedenen Vertreter der Gattung “Microcystis” im heutigen Sinn wurden in mehrere Gattungen eingereiht. Es handelt sich um folgende: Micraloa Bias. 1833 (in Kützing 1833, typus = ? Flagellaten); Microhaloa Kütz. 1833. (Irrtum, zum ersten Mal von Rabenhorst 1865 gebraucht); Microcystis Kütz.
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Stability of toxigenic Microcystis blooms
Harmful Algae, 2009Abstract This is the first detailed study on the occurrence of cyanobacterial toxins in India, where we studied five eutrophic, temple ponds in the vicinity of Varanasi city, Uttar Pradesh, which continuously supported blooms of Microcystis sp. for several years.
Satya Prakash +2 more
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