Oxidative metabolism of photosynthetic species and the exposure to some freshwater and marine biotoxins

PUNTARULO S.; GONZALEZ P.M

Biocell

Tech Science

Lugar: Nevada; Año: 2021 p. 813 - 821

Environmental climate conditions could lead to an increasing global occurrence of microorganism blooms thatsynthesize toxins in the aquatic environments. These blooms could result in significantly toxic events. Responses ofphotosynthetic organisms to adverse environmental conditions implicate reactive oxygen species generation; but, dueto the presence of a varied cellular antioxidant defense system and complex signaling networks, this oxidative stresscould act as an important factor in the environmental adaptive processes. The objective of this review was to assesshow some biotoxins are implicated in the generation of oxidative and nitrosative metabolic changes, not only inbiotoxin-producing organisms but also in non-producing organisms. Therefore, toxins may modify the oxidativecellular balance of several other species. Hence, the effect of toxins on the oxidative and nitrosative conditions will beevaluated in freshwater and marine algae and vascular plants. The changing climate conditions could act as agentscapable of modifying the community composition leading to alterations in the global health of the habitat, risking thesurvival of many species with ecological relevance.