Results 51 to 60 of about 4,091 (215)

Screening of cyanotoxin producing genes in Ecuadorian freshwater systems

Acta Limnologica Brasiliensia, 2022
: Aim This study pursued the detection of cyr and mcy genes to assess the presence of cylindrospemopsin (CN) and microcystin (MC) potential producers in Ecuadorian water bodies. Methods Environmental DNA (eDNA) was extracted from eight water bodies and
Isabel Ballesteros, Sara de la Cruz, Michelle Rojas, Génesis Salazar, Miguel Martínez-Fresneda, Pablo Castillejo   +5 more
doaj   +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, EarlyView.
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

Health-Based Cyanotoxin Guideline Values Allow for Cyanotoxin-Based Monitoring and Efficient Public Health Response to Cyanobacterial Blooms

Toxins, 2015
Human health risks from cyanobacterial blooms are primarily related to cyanotoxins that some cyanobacteria produce. Not all species of cyanobacteria can produce toxins.
David Farrer, Marina Counter, Rebecca Hillwig, Curtis Cude   +3 more
doaj   +1 more source

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

Journal of Phycology, EarlyView.
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

Is qPCR a Reliable Indicator of Cyanotoxin Risk in Freshwater?

Toxins, 2016
The wide distribution of cyanobacteria in aquatic environments leads to the risk of water contamination by cyanotoxins, which generate environmental and public health issues.
Ana Beatriz F. Pacheco, Iame A. Guedes, Sandra M.F.O. Azevedo   +2 more
doaj   +1 more source

Monitoring of freshwater toxins in European environmental waters by using novel multi-detection methods [PDF]

, 2017
Monitoring the quality of freshwater is an important issue for public health. In the context of the European project μAqua, 150 samples were collected from several waters in France, Germany, Ireland, Italy, and Turkey for 2 yr.
Ajani, Banker, Burch, Campbell, Chen, Chislock, Cires, Clayden, Devlin, Elliott, Eriksson, Fraga, Fraga, Fraga, Frank, Hansen, Hansen, Heath, Hilborn, James, James, Kim, Kotaki, Lopez-Alonso, Lévesque, Mann, Marcheggiani, McGrath, Mejean, Merel, Merel, Metcalf, Moreira, Moreira, Norris, Osswald, Pearson, Pereira, Quiblier, Rodriguez, Rodriguez, Sanchez, Slevin, Spivak, Stevens, Terao, Thomas, Trainer, Triantis, Usleber, Viaggiu, Wonnacott   +51 more
core   +1 more source

Multi‐Omic Assessment of Microbial Communities and Their Polyketide Biosynthetic Potential Across Abyssal Sediments

Environmental Microbiology, Volume 28, Issue 5, May 2026.
Abyssal sediments were assessed for taxonomic diversity and polyketide biosynthetic potential and compared to metagenomic and metabolomic assessments of the same sediments. Biodiversity differences were documented across biogeochemical regimes with the results providing baseline awareness of what might be lost should deep‐sea microbiomes be disrupted ...
Hans W. Singh, Johanna Gutleben, Alexander Bogdanov, Alexander B. Chase, Alyssa Demko, Sheila Podell, Brian Haley, Paul R. Jensen   +7 more
wiley   +1 more source

Lacustrine Cyanobacteria, Algal Blooms and Cyanotoxins in East Africa: Implications for Human and Ecological Health Protection

Phycology, 2023
Advected cyanobacteria, algal blooms and cyanotoxins have been increasingly detected in freshwater ecosystems. This review gives an insight into the present state of knowledge on the taxonomy, dynamics, toxic effects, human and ecological health ...
Timothy Omara, Christine Betty Nagawa, Christine Kyarimpa, Stefan Böhmdorfer, Thomas Rosenau, Solomon Omwoma Lugasi, Henry Matovu, Silver Odongo, Patrick Ssebugere   +8 more
doaj   +1 more source

Omics Insights into Cylindrospermopsin's Molecular Toxicity. [PDF]

Foods
Cylindrospermopsin (CYN) is a potent cyanotoxin that poses a significant risk to human and animal health. Due to its occurrence in drinking water and food, as well as its ability to bioaccumulate in aquatic organisms and plants irrigated with contaminated water, the oral route is an important exposure pathway.
Borja RF, Plata-Calzado C, Diez-Quijada L, Puerto M.   +3 more
europepmc   +4 more sources

New Zealand Guidelines for cyanobacteria in recreational fresh waters: Interim Guidelines [PDF]

, 2009
This document is divided into four main sections, plus 14 appendices. Section 1. Introduction provides an overview of the purpose and status of the document as well as advice on who should use it. Section 2.
Hamilton, David P., Paul, Wendy J., Safi, Karl A., Williamson, Wendy M., Wood, Susanna A.   +4 more
core   +1 more source