Toxins of cyanobacteria and microalgae: a challenge for aquatic ecotoxicology

The purpose of this review is to draw attention to the growing number of secondary metabolites produced by microorganisms in aquatic environments, specially cyanobacteria and marine microalgae. The first group is a producer of major hepatotoxins, neurotoxins and dermatotoxins. Cyanobacteria are resp...

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Detalles Bibliográficos
Autores: Oliveira, Manildo Marcião de, Filho, Moacelio Veranio Silva, Bastos, Jayme da Cunha, Neves, Maria Helena Campos Baeta
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Brasil
Institución:Instituto Federal de Educação, Ciência e Tecnologia Fluminense (IFF)
Repositorio:Boletim do Observatório Ambiental Alberto Ribeiro Lamego (Online)
Idioma:portugués
OAI Identifier:oai:ojs.editoraessentia.iff.edu.br:article/938
Acceso en línea:https://editoraessentia.iff.edu.br/index.php/boletim/article/view/2177-4560.20100003
Access Level:acceso abierto
Palabra clave:Toxinas. Cianobactéria. Algas nocivas.
Toxins
Cyanobacteria. Harmful algae
Descripción
Sumario:The purpose of this review is to draw attention to the growing number of secondary metabolites produced by microorganisms in aquatic environments, specially cyanobacteria and marine microalgae. The first group is a producer of major hepatotoxins, neurotoxins and dermatotoxins. Cyanobacteria are responsible for most poisoning events in epicontinental aquatic environments. Eukaryotic microalgae, in marine environments such as diatoms and dinoflagellates, are great producers of a variety of phycotoxins. These syndromes are caused by consumption of contaminated mussels or ciguatera intoxication by consumption of fish (CFP). The current situation demands attention because many events occur and are not notified for important historical studies on seasonal flower blooms. Methodological issues and skilled labor also hinder more precise diagnosis of the blooms. The cooperation between different professionals with different backgrounds as taxonomists, chemists, biologists and environmental engineers is essential for ecotoxicological studies on the risk assessment of these blooms and suggest changes in environmental legislation.