Journal ArticleDOI
Allelopathy in freshwater cyanobacteria
TLDR
The role of allelopathy in cyanobacteria ecology is still not well understood, and its clarification should benefit from carefully designed field studies, chemical characterization of allelochemicals and new methodological approaches at the “omics” level.Abstract:
Freshwater cyanobacteria produce several bioactive secondary metabolites with diverse chemical structure, which may achieve high concentrations in the aquatic medium when cyanobacterial blooms occur. Some of the compounds released by cyanobacteria have allelopathic properties, influencing the biological processes of other phytoplankton or aquatic plants. These kinds of interactions are more easily detectable under laboratory studies; however their ecological relevance is often debated. Recent research has discovered new allelopathic properties in some cyanobacteria species, new allelochemicals and elucidated some of the allelopathic mechanisms. Ecosystem-level approaches have shed some light on the factors that influence allelopathic interactions, as well as how cyanobacteria may be able to modulate their surrounding environment by means of allelochemical release. Nevertheless, the role of allelopathy in cyanobacteria ecology is still not well understood, and its clarification should benefit from carefully designed field studies, chemical characterization of allelochemicals and new methodological approaches at the "omics" level.read more
Citations
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Impact of Environmental Factors on the Regulation of Cyanotoxin Production
Thangavelu Boopathi,Jang-Seu Ki +1 more
TL;DR: An overview of the influence of various environmental factors on the production of major group of cyanotoxins, including microcystins, nodularin, cylindrospermopsin, anatoxins and saxitoxins is presented.
Journal ArticleDOI
Interpreting the possible ecological role(s) of cyanotoxins: compounds for competitive advantage and/or physiological aide?
Aleicia Holland,Susan Kinnear +1 more
TL;DR: It is demonstrated that complex and multiple factors are at play in driving evolutionary processes in aquatic environments, including the need to use a “systems approach” to understand how physico-chemical conditions, as well biological stressors, interact to trigger toxin production.
Journal ArticleDOI
Global expansion of toxic and non-toxic cyanobacteria: effect on ecosystem functioning
TL;DR: The expansion of toxic and non-toxic cyanobacteria to a wide geographic range may have an impact on the ecosystems, trophic cascades and geochemical cycles, and on the diversity and complexity of the microbial community.
Journal ArticleDOI
Drought-induced water-level reduction favors cyanobacteria blooms in tropical shallow lakes
Jandeson Brasil,José Luiz Attayde,Francisco Rivera Vasconcelos,Danyhelton D. F. Dantas,Vera L. M. Huszar +4 more
TL;DR: In this paper, the authors analyzed physical and chemical variables and plankton communities of 40 man-made lakes in warm semiarid northeastern Brazil at the end of the wet and dry seasons.
Journal ArticleDOI
Interspecific allelopathy in cyanobacteria: Cylindrospermopsin and Cylindrospermopsis raciborskii effect on the growth and metabolism of Microcystis aeruginosa
Piotr Rzymski,Barbara Poniedziałek,Mikołaj Kokociński,Tomasz Jurczak,Dawid Lipski,Krzysztof Wiktorowicz +5 more
TL;DR: It is concluded that CYN can be involved in interspecific competition in cyanobacteria and that non-CYN producing C. raciborskii strains may produce a hitherto unknown bioactive compound(s) which can mimic CYN action.
References
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Journal ArticleDOI
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