Unveiling the link between Raphidiopsis raciborskii blooms and saxitoxin levels: Evaluating water quality in tropical reservoirs, Brazil

Environmental Pollution, Год журнала: 2024, Номер 344, С. 123401 - 123401

Опубликована: Янв. 21, 2024

Язык: Английский

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Mechanisms responsible for the ubiquity of cyanobacterium Raphidiopsis raciborskii – Is photosynthetic apparatus a key player?

Algal Research, Год журнала: 2024, Номер unknown, С. 103870 - 103870

Опубликована: Дек. 1, 2024

Язык: Английский

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Variation within and between cyanobacterial species and strains affects competition: Implications for phytoplankton modelling

Harmful Algae, Год журнала: 2017, Номер 69, С. 38 - 47

Опубликована: Окт. 14, 2017

Язык: Английский

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Influence of environmental variables on saxitoxin yields by Cylindrospermopsis raciborskii in a mesotrophic subtropical reservoir

Journal of Water and Health, Год журнала: 2017, Номер 15(4), С. 509 - 518

Опубликована: Март 25, 2017

Saxitoxins are a class of toxins produced by at least two groups evolutionarily distant organisms (cyanobacteria and dinoflagellates). While the toxicity these is relatively well characterized, to date little known about their drivers ecological functions, especially in lower latitude tropical subtropical freshwater ecosystems. In present study, we aimed obtain better understanding main saxitoxin concentrations aquatic environments. We investigated relationships among mesotrophic reservoir dominated cyanobacteria Cylindrospermopsis raciborskii with physical, chemical biological water variables. The highest were 0.20 μg·L-1, which occurred samples densities C. (maximum 4.3 × 104 org·mL-1) concentration dissolved nutrients (nitrate from 0.2 0.8 ortophosphate 0.3 8.5 μg·L-1). These correlations confirmed statistical analyses. However, relative (per trichome) associated densities, suggesting that production or selection saxitoxin-producing strains was adaptation this species conditions stress. Our results indicate toxin yields vary depending on enrichment having potential implications for management.

Язык: Английский

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Phylogeographic, toxicological and ecological evidence for the global distribution of Raphidiopsis raciborskii and its northernmost presence in Lake Nero, Central Western Russia

Harmful Algae, Год журнала: 2020, Номер 98, С. 101889 - 101889

Опубликована: Авг. 17, 2020

Язык: Английский

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