Results 61 to 70 of about 294 (139)

Molecular Screening for Cyanobacteria and Their Cyanotoxin Potential in Diverse Habitats

Toxins
Cyanobacteria are adaptable and dominant organisms that exist in many harsh and extreme environments due to their great ecological tolerance. They produce various secondary metabolites, including cyanotoxins.
Maša Jablonska, Tina Eleršek, Polona Kogovšek, Sara Skok, Andreea Oarga-Mulec, Janez Mulec   +5 more
doaj   +1 more source

Cyanobacteria and Cyanotoxins in Mediterranean Reservoirs: Ecological Variability, Risks and Implications for Water Quality Assessment

Ecohydrology, Volume 19, Issue 1, January‐February 2026.
ABSTRACT The increasing demand for freshwater, in combination with climate change and pollution, compromises the quality and quantity of water resources. These pressures have intensified cyanobacterial blooms, including toxic events that threaten human health and aquatic ecosystems. This study complements the objectives of the Water Framework Directive
Ivo Pinto, Raquel Silva, Guilherme Scotta Hentschke, Vítor Vasconcelos, João Morais, Luísa Azevedo, Sara C. Antunes   +6 more
wiley   +1 more source

Nutrient‐driven regulation of saxitoxin gene expression and toxin production in Raphidiopsis raciborskii (Cyanobacteria)

Journal of Phycology, Volume 61, Issue 6, Page 1738-1752, December 2025.
Abstract Raphidiopsis raciborskii is a diazotrophic cyanobacterium, globally distributed in aquatic environments and known for forming toxic blooms, thereby affecting ecosystem services. South American strains are producers of saxitoxins, potent neurotoxins harmful to humans and animals.
Mehrzad Zare, Bruna Barçante, Juliana da Silva Martins Pimentel, Alessandra Giani   +3 more
wiley   +1 more source

ALGELE CIANOFITE (CYANOPHYTA) – SURSE DE METABOLIŢI SECUNDARI BIOACTIVI: Valentina BULIMAGA, Vasile ŞALARU, Liliana ZOSIM, Maria PISOV, Alina TROFIM, Victor ŞALARU Universitatea de Stat din Moldova [PDF]

, 2014
The review of research results in recent decades connected to cyanobacteria as the sources of bioactive secondary metabolites. The main classes of secondary metabolites produced by cyanobacteria with toxicity to humans and animals are presented.
ADMIN, USM
core  

Interactive effects of stoichiometry and environmental variability regulate cyanobacteria toxicity in two eutrophic bays

Limnology and Oceanography, Volume 70, Issue 11, Page 3506-3519, November 2025.
Abstract Cyanobacteria blooms are a leading threat to water quality globally. Despite this, the timing and frequency of toxin production associated with harmful blooms are not well understood. Here we explore cyanobacteria bloom dynamics and cyanotoxin production in two heavily instrumented shallow, eutrophic bays of Lake Champlain through the lens of ...
Katelynn E. Warner, Andrew W. Schroth, Megan Petrine, Alex Bernich, Nicole D. Wagner, Bofan Wei, Gregory L. Boyer, Ana M. Morales   +7 more
wiley   +1 more source

The toxic effects of meta‐tyrosine are related to its misincorporation into the proteome and to altered metabolism in cyanobacteria

The FEBS Journal, Volume 292, Issue 20, Page 5439-5456, October 2025.
This study reveals that meta‐tyrosine (m‐Tyr), a nonproteinogenic analog of aromatic amino acids, disrupts protein synthesis and photosynthesis in cyanobacteria by being misincorporated by Phenylalanyl‐tRNA synthetase (PheRS) into essential proteins. Through molecular, biochemical, and proteomic analyses in Synechocystis, the research shows that m‐Tyr ...
Hagit Zer, Roei Matan, David Rasin, Yoram Soroka, Noa Carmi, Hanan Schoffman, Nir Keren, Jörg Nickelsen, Oren Ostersetzer‐Biran   +8 more
wiley   +1 more source

Lesser-Known Cyanotoxins: A Comprehensive Review of Their Health and Environmental Impacts

Toxins
Cyanobacteria, also known as blue-green algae, are a diverse phylum of photosynthetic, Gram-negative bacteria and one of the largest microbial taxa. These organisms produce cyanotoxins, which are secondary metabolites that can have significant impacts on
Molham Al Haffar, Ziad Fajloun, Sami Azar, Jean-Marc Sabatier, Ziad Abi Khattar   +4 more
doaj   +1 more source

Effects of the cyanobacteria Microcystis aeruginosa on eastern oyster feeding

Ecosphere, Volume 16, Issue 9, September 2025.
Abstract The eastern oyster, Crassostrea virginica, is an estuarine consumer of considerable ecological and economic value, with the ability to selectively feed from a mixed phytoplankton community. Estuarine phytoplankton communities are experiencing an increased presence of small, nutritionally poor, salt‐tolerant, and potentially toxic cyanobacteria,
Julia A. Sweet, Sandra M. Casas, Jerome F. La Peyre, Mark A. Genung, Beth A. Stauffer   +4 more
wiley   +1 more source

Omics Insights into Cylindrospermopsin’s Molecular Toxicity

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.
Ronald F. Borja, Cristina Plata-Calzado, Leticia Diez-Quijada, María Puerto   +3 more
openaire   +3 more sources

Occurrence of toxin-producing cyanobacteria blooms in a Brazilian semiarid reservoir

Brazilian Journal of Biology
We report the occurrence of cyanobacterial blooms and the presence of cyanotoxins in water samples from the Armando Ribeiro Gonçalves reservoir (06° 08’ S and 37° 07’ W), located in the state of Rio Grande do Norte, in the semiarid region of northeastern
I. A. S. Costa, S. M. F. O Azevedo, P. A. C. Senna, R. R. Bernardo, S. M. Costa, N. T. Chellappa   +5 more
doaj   +1 more source