Results 41 to 50 of about 22,560 (270)

Hemagglutinating activity of Microcystis aeruginosa (Cyanobacterium).

NIPPON SUISAN GAKKAISHI, 1987
Natural Microcystis aeruginosa specimens collected mainly from Suwa and Kasumigaura lakes were examined for both the hemagglutinating activity for mammalian erythrocytes and the toxicity in mice. Sixteen out of the 18 samples examined showed a hemagglutinating activity for rabbit erythrocytes, ten for rat and four for mouse erythrocytes. Ten strains in
Mariyo F. Watanabe, Yukie Ozawa, Shinshi Oishi   +2 more
openaire   +2 more sources

Occurrence of Harmful Algal Blooms in Freshwater Sources of Mindu and Nyumba ya Mungu Dams, Tanzania

Journal of Toxicology, 2023
Harmful algal blooms (HABs) pose a significant threat to aquatic ecosystems and human health due to the production of toxins. The identification and quantification of these toxins are crucial for water quality management decisions.
Josephine J. Gobry, Hilda S. Bachwenkizi, Offoro N. Kimambo, Faustin N. Ngassapa, Kessy F. Kilulya   +4 more
doaj   +1 more source

Grazing on Microcystis (Cyanophyceae) by testate amoebae with special reference to cyanobacterial abundance and physiological state [PDF]

, 2011
We examined the growth of testate amoebae preying on Microcystis whose physiological states were different in laboratory experiments and a hypertrophic pond.
Chang, Kwang-Hyeon, Doi, Hideyuki, Imai, Hiroyuki, Mizuta, Seiko, Nakano, Shin-ichi, Nishibe, Yuichiro   +5 more
core   +1 more source

Highly plastic genome of Microcystis aeruginosa PCC 7806, a ubiquitous toxic freshwater cyanobacterium

BMC Genomics, 2008
Background The colonial cyanobacterium Microcystis proliferates in a wide range of freshwater ecosystems and is exposed to changing environmental factors during its life cycle.
Latifi Amel, Talla Emmanuel, Becker Sven, Ziemert Nadine, Zilliges Yvonne, Kehr Jan-Christoph, Gribaldo Simonetta, Zhang Cheng-Cai, Tolonen Andrew, Cortez Diego, Matthijs Hans CP, Humbert Jean-François, Castets Anne-Marie, Quillardet Philippe, Frangeul Lionel, Billault Alain, Lepelletier Anthony, Dittmann Elke, Bouchier Christiane, Tandeau de Marsac Nicole   +19 more
doaj   +1 more source

Further characterization of glycine-containing microcystins from the McMurdo Dry Valleys of Antarctica [PDF]

, 2015
Microcystins are hepatotoxic cyclic peptides produced by several cyanobacterial genera worldwide. In 2008, our research group identified eight new glycine-containing microcystin congeners in two hydro-terrestrial mat samples from the McMurdo Dry Valleys ...
Cary, S. Craig, Hamilton, David P., Holland, Patrick T., Prinsep, Michèle R., Puddick, Jonathan, Wood, Susanna A.   +5 more
core   +3 more sources

The dynamics of an aquatic ecological model with aggregation, Fear and Harvesting Effects

AIMS Mathematics, 2022
In this paper, we investigate an aquatic ecological model of microcystis aeruginosa-filter feeding fish and predatory fish model with aggregation effect of microcystis aeruginosa. Fear effect of predatory fish on filter feeding fish and harvesting effect
Ashraf Adnan Thirthar, Salam J. Majeed, Kamal Shah, Thabet Abdeljawad   +3 more
doaj   +1 more source

Control of Microcystis aeruginosa with Galla chinensis [PDF]

Israeli Journal of Aquaculture - Bamidgeh, 2015
Galla chinensis (nutgall), used in traditional Chinese medicine, is a product extracted from nutgall trees in Chinese forests. In this study, Microcystis aeruginosa, a cyanobacterium, was exposed to different concentrations of nutgall extract obtained from Galla chinensis.
Nie, Jiangli, Shii, Cong, Yi, Pei, Qi, Hongli   +3 more
openaire   +1 more source

The occurrence of positive selection on BicA transporter of Microcystis aeruginosa

Ecotoxicology and Environmental Safety
The rapid growth of cyanobacteria, particularly Microcystis aeruginosa, poses a significant threat to global water security. The proliferation of toxic Microcystis aeruginosa raises concerns due to its potential harm to human health and socioeconomic ...
Eun-Jeong Kim, Huijeong Doh, Jihye Yang, Seong-il Eyun   +3 more
doaj   +1 more source

Rapid flotation of Microcystis wesenbergii mediated by high light exposure: implications for surface scum formation and cyanobacterial species succession

Frontiers in Plant Science
Increasing occurrences of Microcystis surface scum have been observed in the context of global climate change and the increase in anthropogenic pollution, causing deteriorating water quality in aquatic ecosystems.
Tiantian Yang, Tiantian Yang, Jiaxin Pan, Jiaxin Pan, Huaming Wu, Cuicui Tian, Cuicui Tian, Chunbo Wang, Chunbo Wang, Bangding Xiao, Bangding Xiao, Min Pan, Xingqiang Wu, Xingqiang Wu   +13 more
doaj   +1 more source

Toxicological effects of ciprofloxacin and chlorhexidine on growth and chlorophyll a synthesis of freshwater cyanobacteria

Brazilian Journal of Pharmaceutical Sciences, 2019
Cyanobacteria are phytoplanktonic microorganisms that are susceptible to the deleterious effects of pharmaceutical residues in the aquatic environment, which poses a challenge to the environment exposed to diverse pharmaceutical products and their ...
Fernanda Cristina Rezende Azevedo, Izabela Cristina Dias Vaz, Francisco Antônio Rodrigues Barbosa, Sérgia Maria Starling Magalhães   +3 more
doaj   +1 more source