Results 81 to 90 of about 13,733 (224)

Optimizing a long‐term monitoring strategy to track emerging cyanobacterial blooms in a Great Lakes estuary

Journal of Phycology, Volume 62, Issue 4, Page 1264-1296, August 2026.
Abstract Cyanobacterial harmful algal blooms (cHABs) are increasingly frequent and severe globally. Recently, the St. Louis River Estuary (SLRE) has experienced numerous cHABs, but the locations, timing, and environmental conditions associated with them are unknown.
Peter A. Birschbach, Euan D. Reavie, Christopher T. Filstrup, Hannah Nicklay   +3 more
wiley   +1 more source

Purification and identification of microcystin-RR [PDF]

Chinese Journal of Chromatography, 2013
An effective method based on the combination of solid phase extraction and gel chromatography to extract and purify microcystin-RR (MC-RR) from natural cyanobacteria bloom was developed. Thirty five gram natural cyanobacterial bloom scum was extracted with 70% aqueous methanol. After the methanol in the crude extract was removed by a rotary evaporator,
Yonglu, Zhang, Xianing, Huang, Wenqing, Xiao, Qing, Zhong, Kangding, Gu   +4 more
openaire   +2 more sources

Non-microcystin producing Microcystis wesenbergii (Komarek) Komarek (Cyanobacteria) representing a main waterbloom-forming species in Chinese waters

, 2008
It is well known that several morphospecies of Microcystis, such as Microcystis aeruginosa (Kutzing) Lemmermann and Microcystis viridis (A. Brown) Lemmermann can produce hepatotoxic microcystins.
Yu, Boshi, Xu, Yao, Wang, Guoxiang, Yu, Gongliang, Wu, Zhongxing, Li, Renhui, Li, RH, Chinese Acad Sci, Inst Hydrobiol, Donghu Nanlu 7, Wuhan 430072, Hubei, Peoples R China, Peng, Xin, Wei, Zhihong   +8 more
core   +1 more source

PHLPP is neither a Phosphatase nor a Tumor Suppressor

BioEssays, Volume 48, Issue 7, July 2026.
PH domain leucine‐rich repeat protein phosphatases (PHLPP) have been described as Akt phosphatases and tumor suppressors for more than 20 years. Recent evidence, however, indicates that they are pseudophosphatases that lost catalytic activity more than 450 Mya. This article argues that new hypotheses are urgently needed to reorient the field.
Thomas A. Leonard
wiley   +1 more source

Responses of antioxidant system in Arabidopsis thaliana suspension cells to the toxicity of microcystin-RR

, 2005
Microcystins are cyclic heptapeptide hepatoxins produced by many species of cyanobacteria. The toxic effects and mechanism of microcystins on animals have been well studied both in vivo and in vitro.
Huang, JQ, Yin, LY, Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China, Li, DH, Liu, YD, Huang, WM   +5 more
core   +1 more source

Effects of microcystin-LR in isolated perfused rat kidney

Brazilian Journal of Medical and Biological Research, 1999
Microcystin is a hepatotoxic peptide which inhibits protein phosphatase types 1 and 2A. The objective of the present study was to evaluate the physiopathologic effects of microcystin-LR in isolated perfused rat kidney.
A.C.L. Nobre, M.C.M. Jorge, D.B. Menezes, M.C. Fonteles, H.S.A. Monteiro   +4 more
doaj   +1 more source

Shifting ice phenology and ice extent linked to harmful algal bloom severity

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Ice cover on lakes can have far‐reaching and profound effects on ecosystem structure and function. However, the duration and spatial extent of ice cover is changing rapidly with warming aquatic ecosystems. This loss of ice creates an urgent need to understand how lakes will function without ice cover, both during the ice‐on and ice‐free season,
Claire M. Stevens, Marguerite A. Xenopoulos   +1 more
wiley   +1 more source

Historical Records of Nutrient Loading Into End‐Member Mid‐Latitude Lakes

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract Human‐induced environmental changes impact lakes in temperate regions, but detailed lake basin histories that pre‐date instrumental records are limited. Most paleolimnological reconstructions are used to examine single lakes in isolation, making it difficult to separate regional forcings from morphological influences on a sedimentary signal ...
M. A. Brannon, C. A. Scholz, M. L. Chipman, C. T. Driscoll   +3 more
wiley   +1 more source

Reduction in microcystin concentrations in large and shallow lakes: Water and sediment-interface contributions

, 2008
Blooms of cyanobacteria, or blue-greens, are known to produce chemicals, such as microcystins, which can be toxic to aquatic and terrestrial organisms.
Chen, Wei, Zhang, Xiaoming, Peng, Liang, Wan, Neng, Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China, Gan, Nanqin, Song, Lirong   +6 more
core   +1 more source

Nitrogen limitation, toxin synthesis potential, and toxicity of cyanobacterial populations in Lake Okeechobee and the St. Lucie River Estuary, Florida, during the 2016 state of emergency event.

PLoS ONE, 2018
Lake Okeechobee, FL, USA, has been subjected to intensifying cyanobacterial blooms that can spread to the adjacent St. Lucie River and Estuary via natural and anthropogenically-induced flooding events.
Benjamin J Kramer, Timothy W Davis, Kevin A Meyer, Barry H Rosen, Jennifer A Goleski, Gregory J Dick, Genesok Oh, Christopher J Gobler   +7 more
doaj   +1 more source