Results 71 to 80 of about 18,616 (256)

Transcriptional alteration of cytoskeletal genes induced by microcystins in three organs of rats [PDF]

, 2010
This study explored the mechanisms of toxicity of microcystins by measuring the transcription levels of nine cytoskeletal genes (actin, tubulin, vimentin, ezrin, radixin, moesin, MAP1b, tau, stathmin) in the liver, kidney and spleen of male Wistar rats ...
Liu, Ying, Hao, Le, Xiong, Qian, Wang, Qing, Ha, Huiying, Li, Guangyu, Qiu, Tong, Xie, Ping, Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Donghu S Rd 7, Wuhan 430072, Peoples R China   +8 more
core  

Effects of microcystins on the growth and the activity of superoxide dismutase and peroxidase of rape (Brassica napus L.) and rice (Oryza sativa L.)

, 2004
Microcystins are naturally occurring hepatotoxic cyclic heptapeptides produced by some toxic freshwater cyanobacterial species. In this study, crude extract of toxic cyanobacterial blooms from Dianchi Lake in southwestern China was used to determine the ...
Chen, JZ, Song, LR, Dai, E, Liu, ZL, Liu, ZL, Nanjing Univ, Sch Life Sci, Dept Biol, Nanjing 210093, Peoples R China, Gan, NQ   +5 more
core   +1 more source

Toxic Cyanobacteria in Svalbard: Chemical Diversity of Microcystins Detected Using a Liquid Chromatography Mass Spectrometry Precursor Ion Screening Method

Toxins, 2018
Cyanobacteria synthesize a large variety of secondary metabolites including toxins. Microcystins (MCs) with hepato- and neurotoxic potential are well studied in bloom-forming planktonic species of temperate and tropical regions.
Julia Kleinteich, J. Puddick, S. Wood, F. Hildebrand, H. D. Laughinghouse, D. Pearce, D. Dietrich, A. Wilmotte   +7 more
semanticscholar   +1 more source

Adsorption of microcystins by carbon nanotubes [PDF]

Chemosphere, 2006
The production of cyanobacterial toxins microcystins (MCs) by cyanobacterial bloom which may promote the growth of tumor in human liver is a growing environmental problem worldwide. In this paper, the adsorption of MC-RR and LR, which were extracted from cyanobacterial cells in Dianchi Lake in China, by carbon nanotubes (CNTs), wood-based activated ...
Hai, Yan, Aijun, Gong, Hongsheng, He, Jie, Zhou, Yuxia, Wei, Le, Lv   +5 more
openaire   +2 more sources

Fear of grazing rivals the toxin‐inducing effects of nutrients in two marine harmful algae – a meta‐analysis

Biological Reviews, Volume 101, Issue 4, Page 1904-1921, August 2026.
ABSTRACT One of the major subfields of chemical ecology is the study of toxins and how they mediate interactions between organisms. Toxins produced by harmful algae (phycotoxins) impact a wide variety of organisms connected to the marine food web. Significant research efforts have thus aimed to identify the ecological and evolutionary drivers behind ...
Milad Pourdanandeh, Erik Selander
wiley   +1 more source

Effects of Temperature on the Stability of Microcystins in Muscle of Fish and Its Consequences for Food Safety [PDF]

, 2010
In this study, bighead carp treated with two doses, i.e. 400 and 580 mu g MC-LReq (Microcystin-LR equivalent)/kg bw. After dosing bighead carp with 400 and 580 ug MC-LReq/Kg bw, the mean concentrations of microcystins (MCs) was significantly higher in ...
Chen, Jun, Zhang, Dawen, Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, China Inst Hydrobiol, Wuhan 430072, Peoples R China, Xie, Ping   +3 more
core  

Newly isolated strains of potentially microcystin-producing cyanobacteria in potable water: case study of Mawoni village, South Africa

Frontiers in Environmental Science
Toxic cyanobacterial species occur in aquatic ecosystems when favourable environmental conditions prevail. These bacteria can produce natural hepatotoxic metabolites called microcystins that can affect the quality of water. Human exposure to microcystins
Mulalo I. Mutoti, Jabulani R. Gumbo, Adivhaho Khwathisi, Afam I. O. Jideani   +3 more
doaj   +1 more source

Nitrogen and Phosphorus Controls on Phytoplankton Growth and Bacterioplankton Communities in Wetland Impoundments

Freshwater Biology, Volume 71, Issue 8, August 2026.
ABSTRACT Nutrient enrichment in shallow lakes and ponds can shift systems from clear water, macrophyte dominance to turbid, phytoplankton dominance. Because the identity and threshold of the limiting nutrients vary among sites, system‐specific evidence is needed to guide water quality management. We conducted 3‐day in situ nutrient‐enrichment bioassays
Rachel. L. Wood, Jakob L. Young, Madeleine P. Malmfeldt, Adam J. Norris, Zachary T. Aanderud, Michelle A. Baker   +5 more
wiley   +1 more source

Screening the toxicity and toxin content of blooms of the cyanobacterium Trichodesmium erythraeum (Ehrenberg) in northeast Brasil

Journal of Venomous Animals and Toxins including Tropical Diseases, 2009
Blooms of the cyanobacterium Trichodesmium occur in massive colored patches over large areas of tropical and subtropical oceans. Recently, the interest in such events has increased given their role in major nitrogen and carbon dioxide oceanic fluxes ...
LAO Proença, MS Tamanaha, RS Fonseca
doaj   +1 more source

Nutrient disturbance in a shallow aquaculture pond impacts Microcystis gene expression but does not impact bacterial community function during bloom conditions

Journal of Phycology, Volume 62, Issue 4, Page 1297-1310, August 2026.
Abstract Cyanobacterial harmful algal blooms (cHABs) are worldwide issues. Reduced nitrogen forms (ammonium and urea) have recently been measured in freshwater systems at concentrations not previously recorded. These reduced nitrogen forms have been shown to favor the proliferation of harmful cyanobacteria.
Matthew F. Gladfelter, Hunter R. Baylous, Alan E. Wilson, Morgan M. Steffen   +3 more
wiley   +1 more source