Metabolome of Cadmium Stressed Gracilaria caudata (Rhodophyta)

نویسندگان

چکیده

We report here the effects of cadmium on metabolome macroalga Gracilaria caudata. The IC50 3 mg/L (12 µM) was obtained after 48 hrs exposure and induced lower photosynthesis efficiency. Threshold concentrations determined by Brazilian Environmental Council (CONAMA) in marine waters (0.04 mg/L) effluent discharge (0.2 were also tested, latter changed photosynthetic efficiency similarly to IC50. A total 43 metabolites identified, including monosaccharides, carboxylic acids, amino acids. By an unsupervised PCA, we identified significative alterations An OPLS-DA analysis showed that Cd2+ caused variation 20 metabolites, mainly glyoxylate-related, ascorbate, floridoside proline. Five metabolic pathways altered accumulation carbon metabolism intermediates antioxidant responses Cd2+. recommend a review toxicity parameters methods guide environmental policies levels waters.

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ژورنال

عنوان ژورنال: Phycology

سال: 2023

ISSN: ['2673-9410']

DOI: https://doi.org/10.3390/phycology3020016