title: Behavior of the edible seaweed Sargassum fusiforme to copper pollution: short-term acclimation and long-term adaptation.
abstract: 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.
authors.affiliation: Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China.
authors.forename: Hui-Xi
authors.initials: HX
authors.lastname: Zou
authors.affiliation: Key Laboratory of Saline-Alkali Vegetation Ecology Restoration in Oil Field, Northeast Forest University, Harbin, People's Republic of China.
authors.forename: Qiu-Ying
authors.initials: QY
authors.lastname: Pang
authors.affiliation: Key Laboratory of Saline-Alkali Vegetation Ecology Restoration in Oil Field, Northeast Forest University, Harbin, People's Republic of China.
authors.forename: Li-Dong
authors.initials: LD
authors.lastname: Lin
authors.affiliation: Key Laboratory of Saline-Alkali Vegetation Ecology Restoration in Oil Field, Northeast Forest University, Harbin, People's Republic of China.
authors.forename: Ai-Qin
authors.initials: AQ
authors.lastname: Zhang
authors.affiliation: Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China.
authors.forename: Nan
authors.initials: N
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China.
authors.forename: Yan-Qing
authors.initials: YQ
authors.lastname: Lin
authors.affiliation: Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China.
authors.forename: Lu-Min
authors.initials: LM
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China.
authors.forename: Qin-Qin
authors.initials: QQ
authors.lastname: Wu
authors.affiliation: Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China.
authors.forename: Xiu-Feng
authors.initials: XF
authors.lastname: Yan
mesh_terms: D000064:Acclimatization; D000222:Adaptation, Physiological; D001224:Aspartic Acid / Q000378:metabolism; D002794:Choline / Q000378:metabolism; D003300:Copper / Q000378:metabolism*; D017753:Ecosystem; D004787:Environmental Pollution; D006801:Humans; D008293:Malates / Q000378:metabolism; D008353:Mannitol / Q000378:metabolism; D055432:Metabolomics / Q000379:methods; D019216:Metals, Heavy; D009584:Nitrogen / Q000378:metabolism; D010788:Photosynthesis; D044647:Sargassum / Q000378:metabolism*; D013312:Stress, Physiological
chemical_list: D008293:Malates; D019216:Metals, Heavy; D001224:Aspartic Acid; D008353:Mannitol; D003300:Copper; C030298:malic acid; D009584:Nitrogen; D002794:Choline