Behavior of the edible seaweed Sargassum fusiforme to copper pollution: short-term acclimation and long-term adaptation
| Autor: | Li-Dong Lin, Qiuying Pang, Xiufeng Yan, Lu-Min Li, Qin-Qin Wu, Aiqin Zhang, Yan-Qing Lin, Nan Li, Hui-Xi Zou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Antioxidant
Acclimatization medicine.medical_treatment Metabolite Malates lcsh:Medicine Environmental pollution Aquaculture Toxicology Heavy Metals Choline chemistry.chemical_compound Toxins Mannitol Food science Photosynthesis lcsh:Science Multidisciplinary Agriculture Adaptation Physiological Algaculture Phycology Research Article Nitrogen Toxic Agents Marine Biology Biology Stress Physiological Metals Heavy Botany medicine Humans Metabolomics Secondary metabolism Ecosystem Aspartic Acid Sargassum lcsh:R Biology and Life Sciences Cell Biology biology.organism_classification Edible seaweed Oxidative Stress chemistry lcsh:Q Environmental Pollution Copper |
| Zdroj: | PLoS ONE, Vol 9, Iss 7, p e101960 (2014) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | Aquatic agriculture in heavy-metal-polluted coastal areas faces major problems due to heavy metal transfer into aquatic organisms, leading to various unexpected changes in nutrition and primary and/or secondary metabolism. In the present study, the dual role of heavy metal copper (Cu) played in the metabolism of photosynthetic organism, the edible seaweed Sargassum fusiforme, was evaluated by characterization of biochemical and metabolic responses using both 1H NMR and GC-MS techniques under acute (47 µM, 1 day) and chronic stress (8 µM, 7 days). Consequently, photosynthesis may be seriously inhibited by acute Cu exposure, resulting in decreasing levels of carbohydrates, e.g., mannitol, the main products of photosynthesis. Ascorbate may play important roles in the antioxidant system, whose content was much more seriously decreased under acute than that under chronic Cu stress. Overall, these results showed differential toxicological responses on metabolite profiles of S. fusiforme subjected to acute and chronic Cu exposures that allowed assessment of impact of Cu on marine organisms. |
| Databáze: | OpenAIRE |
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