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LipidTOX: A fatty acid-based index efficient for ecotoxicological studies with ...
Duarte, Bernardo; Feijão, Eduardo; Franzitta, Marco; Duarte, Irina A.; de Carvalho, Ricardo Cruz; Cabrita, Maria Teresa; Marques, João CarlosContaminants, when present above certain thresholds, can induce physiological constraints to organisms, namely diatoms, a model group representative of marine phytoplankton, triggering feedback mechanisms, such as changes in cell's fatty acid profiles, that can be used as biomarkers towards xenobiotic exposure. Having this in mind and considering the ecological relevance of diatom fatty acid profiles as well as...
Unlocking Kautsky’s dark box: Development of an optical toxicity classification...
Duarte, Bernardo; Feijão, Eduardo; Carvalho, Ricardo Cruz de; Franzitta, Marco; Marques, João Carlos; Caçador, Maria Isabel ViolanteChlorophyll a induction curves, or Kautsky curves, have been extensively used to study physiological stress conditions in phototrophic organisms, with the analysis of several derived parameters. Nevertheless, these variables use only about 10 % of the information comprised in the complete Kautsky curve dataset, leaving 90 % of the photochemical data within an underutilized dark box, that is not translated into ...
Development of a toxicophenomic index for trace element ecotoxicity tests using...
Duarte, Bernardo; Durante, Lorenzo; Marques, João Carlos; Santos, Patrick Neil Boeskill Reis dos; Fonseca, Vanessa F.; Caçador, Maria Isabel ViolanteMarine and coastal ecosystems are the ultimate sink of many contaminants from anthropogenic activities, such as trace elements. Although several ecotoxicological tests are available using autotrophic organisms, none focus on marine plants. Juncus acutus has already showed that it is a good candidate for ecotoxicological studies, providing a good set of contamination biomarkers. The present work evaluates the ap...