Results 61 to 70 of about 3,379 (181)

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

Phytoplankton growth and potential cyanotoxin production differ in response to nitrogen and phosphorus amendments in late summer communities from Kabetogama Lake (Minnesota, United States)

Journal of Phycology, Volume 62, Issue 3, Page 883-903, June 2026.
Abstract Cyanotoxins such as microcystin (MC), cylindrospermopsin, and saxitoxin are secondary metabolites that are rich in nitrogen (N). Most cyanobacteria grow best on reduced inorganic N (ammonium, NH4), but when NH4 is absent, cyanobacteria can activate physiological pathways to process other N forms (e.g., nitrate; NO3).
James H. Larson, Ryan P. Maki, Sean W. Bailey, Victoria G. Christensen, Keith A. Loftin, Erin A. Stelzer, James C. Smith, Seth A. McWhorter   +7 more
wiley   +1 more source

Toxicity and genotoxicity in Astyanax bimaculatus (Characidae) induced by microcystins from a bloom of Microcystis spp

Genetics and Molecular Biology, 2010
Studies of genotoxicity in fish caused by cyanobacterial microcystins can be useful both in determining the sensitivity of native species, as well as comparing exposure routes.
Ricardo Rocha Pavan da Silva, Osmindo Rodrigues Pires Junior, Cesar Koppe Grisolia   +2 more
doaj   +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

Toxic Effects of Purified Microcystins from Soil Blue-Green Alga Oscillatoria pseudogeminata on Tomato Plant Lycopersicon esculentum

مجلة بغداد للعلوم, 2019
The current study included the isolation, purification and cultivation of blue-green alga Oscillatoria pseudogeminata G.Schmidle from soil using the BG-11liquid culture medium for 60 days of cultivation.
Al-Sultan et al.
doaj   +1 more source

Toward Disentangling the Multiple Nutritional Constraints Imposed by Planktothrix: The Significance of Harmful Secondary Metabolites and Sterol Limitation

Frontiers in Microbiology, 2020
The harmful bloom-forming cyanobacterium Planktothrix is commonly considered to be nutritionally inadequate for zooplankton grazers, resulting in limited top-down control.
Anke Schwarzenberger, Rainer Kurmayer, Dominik Martin-Creuzburg   +2 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

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

Recreational Exposure to Low Concentrations of Microcystins During an Algal Bloom in a Small Lake

Marine Drugs, 2008
We measured microcystins in blood from people at risk for swallowing water or inhaling spray while swimming, water skiing, jet skiing, or boating during an algal bloom.
Yung-Sung Cheng, Stephanie M. Kieszak, Vincent R. Hill, Kate Nierenberg, Trisha B. Johnson, Yue Zhou, Mitch Irvin, Christopher Williams, Barbara Kirkpatrick, Wayne Carmichael, Lorraine C. Backer   +10 more
doaj  

Methods for rapid extraction of microcystin-LR and microcystin-RR

浙江大学学报. 农业与生命科学版, 2005
Simple analysis methods using microwave and boiling waterbath to solve the problem for microcystin-LR (MCLR) and microcystin-RR (MCRR) extraction from cyanobacteria cells were studied as a substitute for the traditional solvent extraction methods. Standards were used to confirm the feasibility and efficiency of both methods.
ZHANG Hang-jun, ZHANG Jian-ying, JIAO Li, CHEN Ying-xu   +3 more
openaire   +1 more source