Results 91 to 100 of about 12,360 (230)

Limnofasciculus delicatus (Coleofasciculaceae, Coleofasciculales), a Novel Mat‐Forming Cyanobacterium From Shenandoah River, Virginia, USA

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
A novel mat‐forming benthic freshwater cyanobacterium, Limnofasciculus delicatus, is described based on morphological, phylogenetic and genomic evidence from the North and South Forks of the Shenandoah River. Although Limnofasciculus delicatus lacks biosynthetic gene clusters associated with the production of known cyanotoxins, it occurs in association
Rosalina Stancheva, Cecilio Valadez‐Cano, Benoit Van Aken, Gordon M. Selckmann, Janice Lawrence, A. Bruce Cahoon   +5 more
wiley   +1 more source

Diversity of toxin and non-toxin containing cyanobacterial mats of meltwater ponds on the Antarctic Peninsula: a pyrosequencing approach [PDF]

, 2014
Despite their pivotal role as primary producers, there is little information as to the diversity and physiology of cyanobacteria in the meltwater ecosystems of polar regions.
Quesada, Antonio, Kuepper, F. C., Wood, Susie, Cires, S., Hildebrand, Frank, Convey, P., Küpper, Frithjof C., Agha, Ramsy, Hildebrand, F, Quesada, A., Convey, P, Convey, Peter, Dietrich, D.R., Kupper, FC, Pearce, D. A., Wood, SA, Dietrich, DR, Hildebrand, Falk, Quesada, A, Ciŕs, S., Kleinteich, J, Agha, R, Cirés, S, Küpper, Frithjof, Wood, Susie A., Hildebrand, F., Dietrich, Daniel R., Dietrich, Daniel, Kleinteich, Julia, Pearce, David, Kleinteich, J., Pearce, David A., Küpper, F.C., Pearce, D, Wood, S. A., Dietrich, D. R., K̈pper, F. C., Wood, S.A., Cirés, Samuel, Agha, R., Pearce, D.A.   +40 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

Dominance and toxicity without lethality: Exploring biomass, cyanometabolites, and Daphnia responses across Cyanobacterial strains

Journal of Phycology, Volume 62, Issue 3, Page 801-817, June 2026.
Abstract Cyanobacteria are cosmopolitan, important components of biomass with a remarkable ability to synthesize a diverse array of bioactive compounds, some of which may have toxic effects on other organisms and ecosystems. In this study, filamentous cyanobacterial strains isolated predominantly from temperate European freshwaters (Aphanizomenon ...
Łukasz Wejnerowski, Tamara Dulić, Sultana Akter, Michał Rybak, Agnieszka Piasecka, Jakub Szymkowiak, Oskar Kamiński, Anna Czerepska, Filip Pniewski, Zorica Svirčev, Ewa Poniecka, Krzysztof Zawierucha, Katarzyna Taylor, Marcin Krzysztof Dziuba, Jussi Meriluoto   +14 more
wiley   +1 more source

Spatiotemporal Contaminant Occurrence and Risk Assessment in the Arroio Dourado River Under the Influence of Agriculture and a Deactivated Dumpsite

Water Environment Research, Volume 98, Issue 5, May 2026.
Integrated monitoring and risk assessment of an agricultural river influenced by a deactivated dumpsite. ABSTRACT This study evaluated the impacts of agricultural activities and a decommissioned landfill on the Arroio Dourado River and identified critical sampling periods and strategic monitoring locations.
Marcela Boroski, Sílvia Sônia da Silva, Lizandra Martins Soares, Kleber Gomes Ramirez, Fernanda Rubio, Jiam Pires Frigo, Luiz Henrique Garcia Pereira, Paula Fernandes de Aguiar, Carla Sirtori   +8 more
wiley   +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

Evidence for a novel marine harmful algal bloom: cyanotoxin (microcystin) transfer from land to sea otters.

PLoS ONE, 2010
"Super-blooms" of cyanobacteria that produce potent and environmentally persistent biotoxins (microcystins) are an emerging global health issue in freshwater habitats.
Melissa A Miller, Raphael M Kudela, Abdu Mekebri, Dave Crane, Stori C Oates, M Timothy Tinker, Michelle Staedler, Woutrina A Miller, Sharon Toy-Choutka, Clare Dominik, Dane Hardin, Gregg Langlois, Michael Murray, Kim Ward, David A Jessup   +14 more
doaj   +1 more source

Multimodal Cross‐Attentive Graph‐Based Framework for Predicting In Vivo Endocrine Disruptors

Advanced Science, Volume 13, Issue 21, 13 April 2026.
A multimodal cross‐attentive graph neural network integrates molecular graphs with androgen and estrogen adverse outcome pathway (AOP)–anchored in vitro assay signals to predict in vivo endocrine disruption. By fusing information on Tier‐1 AOP logits with chemical structures, the framework achieves high accuracy and provides assay‐traceable ...
Eder Soares de Almeida Santos, Gustavo Felizardo Santos Sandes, Artur Christian Garcia da Silva, Holli‐Joi Martin, Eugene N. Muratov, Rodolpho de Campos Braga, Bruno Junior Neves   +6 more
wiley   +1 more source

Pulsed galvanostatic control of a solid-contact ion-selective electrode for potentiometric biosensing of microcystin-LR [PDF]

, 2016
We report here on the development of a chronopotentiometric assay for microcystin-LR based on enzymatic inhibition. The inhibition of protein phosphatase by microcystin-LR can be sensed potentiometrically by using 4-nitrophenyl phosphate as an enzyme ...
Wang, WW, Wang, XD (reprint author), Wenzhou Med Univ, Dept Environm Sci, Key Lab Watershed Sci & Hlth Zhejiang Prov, Wenzhou 325035, Peoples R China. jwding@yic.ac.cn, Yu, NN, Wang, XD, Ding, JW (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Proc & Ecol Remediat,YIC, Yantai 264003, Shandong, Peoples R China., Ding, JW, zjuwxd@163.com, Qin, W   +7 more
core   +1 more source

Gastrointestinal toxicity induced by microcystins

World Journal of Clinical Cases, 2018
Microcystins (MCs) are produced by certain bloom-forming cyanobacteria that can induce toxicity in various organs, including renal toxicity, reproductive toxicity, cardiotoxicity, and immunosuppressive effects. It has been a significant global environmental issue due to its harm to the aquatic environment and human health.
Wu, Jin-Xia, Huang, Hui, Yang, Lei, Zhang, Xiao-Feng, Zhang, Shen-Shen, Liu, Hao-Hao, Wang, Yue-Qin, Yuan, Le, Cheng, Xue-Min, Zhuang, Dong-Gang, Zhang, Hui-Zhen   +10 more
openaire   +2 more sources