Results 11 to 20 of about 1,074 (171)

In Vitro Toxicological Assessment of Cylindrospermopsin: A Review [PDF]

Toxins, 2017
Cylindrospermopsin (CYN) is a cyanobacterial toxin that is gaining importance, owing to its increasing expansion worldwide and the increased frequency of its blooms. CYN mainly targets the liver, but also involves other organs.
Silvia Pichardo, Ana M. Cameán, Angeles Jos   +2 more
doaj   +4 more sources

Occurrence and Diversity of Cyanotoxins and Retinoid Compounds in Antarctic Microbial Mats: Evidence From James Ross Island. [PDF]

Environ Microbiol Rep
Occurrence and distribution of cyanotoxins and retinoids across different Antarctic ecosystems at James Ross Island. These ecosystems harbour diverse microbial communities dominated by autotrophic cyanobacteria and algae, which can produce hazardous compounds for animals.
Sehnal L, Bláhová L, Smutná M, Mikeš O, Babica P, Hilscherová K.   +5 more
europepmc   +2 more sources

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

J Phycol
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).
Larson JH, Maki RP, Bailey SW, Christensen VG, Loftin KA, Stelzer EA, Smith JC, McWhorter SA.   +7 more
europepmc   +2 more sources

Dominance and toxicity without lethality: Exploring biomass, cyanometabolites, and Daphnia responses across Cyanobacterial strains. [PDF]

J Phycol
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 ...
Wejnerowski Ł, Dulić T, Akter S, Rybak M, Piasecka A, Szymkowiak J, Kamiński O, Czerepska A, Pniewski F, Svirčev Z, Poniecka E, Zawierucha K, Taylor K, Dziuba MK, Meriluoto J.   +14 more
europepmc   +2 more sources

Nutrient Regulation of Relative Dominance of Cylindrospermopsin-Producing and Non-cylindrospermopsin-Producing Raphidiopsis raciborskii [PDF]

Frontiers in Microbiology, 2021
Raphidiopsis raciborskii (previously Cylindrospermopsis raciborskii) can produce cylindrospermopsin (CYN) which is of great concern due to its considerable toxicity to human and animals. Its CYN-producing (toxic) and non-CYN-producing (non-toxic) strains co-exist commonly in natural water bodies, while how their relative dominance is regulated has not ...
Lamei Lei, Minting Lei, Nan Cheng, Zhijiang Chen, Lijuan Xiao, Bo-ping Han, Qiuqi Lin   +6 more
openaire   +3 more sources

Environmental Exposure to Cyanobacteria Hepatotoxins in a Pacific Island Community: A Cross-Sectional Assessment

Microorganisms, 2022
(1) Background: Cyanobacteria produce a wide range of secondary metabolites, including tumor-promoting hepatotoxins. We recently reported evidence of an independent association between oral cyanobacteria and hepatocellular carcinoma in a U.S. population.
Brenda Y. Hernandez, Jason Biggs, Xuemei Zhu, Patrick Sotto, Michelle Nagata, Ana Joy Pacilan Mendez, Yvette Paulino   +6 more
doaj   +1 more source

Algal Blooms in Lakes Increase After Wildfire Smoke Events in the Contiguous United States. [PDF]

Glob Chang Biol Commun
Temporary pulses of surface chlorophyll‐a are identified following wildfire smoke events in lakes and reservoirs across the United States. ABSTRACT Area burned by wildfire has increased in the contiguous United States and in many places globally in recent years, impacting communities and ecosystems nearby and even far downwind of fires. We examined the
Olson NE, Brehob MM, Sabo RD, Pavlovic I, Shank KI, Penry S, Handler AM, Pennino MJ, Rice RB, Boaggio KL, LeDuc SD.   +10 more
europepmc   +2 more sources

Target Mechanisms of the Cyanotoxin Cylindrospermopsin in Immortalized Human Airway Epithelial Cells

Toxins, 2022
Cylindrospermopsin (CYN) is a cyanobacterial toxin that occurs in aquatic environments worldwide. It is known for its delayed effects in animals and humans such as inhibition of protein synthesis or genotoxicity.
Sabine Ziesemer, Susann Meyer, Julia Edelmann, Janita Vennmann, Celine Gudra, Denise Arndt, Marcus Effenberg, Olla Hayas, Aref Hayas, Johanna Sophia Thomassen, Barbara Kubickova, Dierk-Christoph Pöther, Jan-Peter Hildebrandt   +12 more
doaj   +1 more source

Limnofasciculus delicatus (Coleofasciculaceae, Coleofasciculales), a Novel Mat-Forming Cyanobacterium From Shenandoah River, Virginia, USA. [PDF]

Environ Microbiol Rep
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
Stancheva R, Valadez-Cano C, Van Aken B, Selckmann GM, Lawrence J, Cahoon AB.   +5 more
europepmc   +2 more sources

Dynamics of the Toxin Cylindrospermopsin and the Cyanobacterium Chrysosporum (Aphanizomenon) ovalisporum in a Mediterranean Eutrophic Reservoir

Toxins, 2014
Chrysosporum ovalisporum is a cylindrospermopsin toxin producing cyanobacterium that was reported in several lakes and reservoirs. Its growth dynamics and toxin distribution in field remain largely undocumented.
Ali Fadel, Ali Atoui, Bruno J. Lemaire, Brigitte Vinçon-Leite, Kamal Slim   +4 more
doaj   +1 more source