Effects of Nitrate Enrichment on Respiration, Photosynthesis, and Fatty Acid Composition of Reef Coral Pocillopora damicornis Larvae
文献类型：期刊论文
| 作者 | Liu, Cheng-Yue; Zhang, Fang; Sun, You-Fang; Yu, Xiao-Lei; Huang, Hui6,9,12,14,16 |
| 刊名 | FRONTIERS IN MARINE SCIENCE
 |
| 出版日期 | 2020 |
| 卷号 | 7页码:531 |
| 关键词 | Pocillopora damicornislarvae fatty acid composition nitrate enrichment biomembrane restructuring respiration photosynthesis |
| DOI | 10.3389/fmars.2020.00531 |
| 英文摘要 | In the foreseeable future, coastal coral reef ecosystems are likely to face further increases in eutrophication. Lipids and fatty acids (FAs), as important components of corals, are becoming a hot topic to study the effects of eutrophication on corals. This study investigated the effects of nitrate (NO3-) enrichment (0, 5, 10, 20, and 40 mu M) on the respiration, photosynthesis, and FA compositions of Pocillopora damicornislarvae. Our results showed that saturated FAs (SFAs) were the most abundant in P. damicornislarvae over all treatment groups, followed by polyunsaturated FAs (PUFAs). The unsaturated-to-SFA ratio (U/S) and unsaturation index (UI) reduced at low nitrate concentrations (<10 mu M), since the level of SFAs (mainly 16:0 and 18:0) increased whereas PUFAs (mainly 18:3n3, 20:3n6, and 22:6n3) decreased. Consequently, the biomembranes of the larvae may have become more rigid and viscous, which slowed excessive nitrate entry. Moreover, significantly enhanced photosynthetic functions of zooxanthellae in larvae were found in the N5 group (5 mu M). However, the opposite FA patterns were observed inP. damicornislarvae at higher nitrate concentrations (>20 mu M). The UI and U/S levels were elevated due to the increased PUFAs levels and decreased SFA levels at higher nitrate concentrations. Compared with the N5 and N10 groups, the fluidity of the biomembrane of the larvae did not continue to decrease but instead increased at higher nitrate concentrations, indicating that the biomembrane restructuring in the larvae may have become ineffective. Moreover, respiration increased and the consumption of numerous lipids led to a significant decrease in TFAs. These could adversely affect the dispersal, settlement, and development of larvae. Overall,P. damicornislarvae can adapt to low levels of nitrate (<10 mu M) due to biomembrane restructuring through changes in FA composition. However, negative effects occur in larvae when nitrate exceeds 20 mu M. |
| 资助机构 | National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [41906097, 41976120]; Science and Technology Planning Project of Guangdong Province, China [2017B0303014052]; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences [ISEE2018PY01]; Science and Technology Service Network Initiative of the Chinese Academy of Sciences [KFJ-STS-ZDTP-055] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [41906097, 41976120]; Science and Technology Planning Project of Guangdong Province, China [2017B0303014052]; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences [ISEE2018PY01]; Science and Technology Service Network Initiative of the Chinese Academy of Sciences [KFJ-STS-ZDTP-055] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18381]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Sun, You-Fang 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Sun, You-Fang 4.[Zhang, Fang 5.Hainan Key Lab Trop Marine Biotechnol, Sanya, Peoples R China 6.Zhang, Fang 7.[Liu, Cheng-Yue 8.Chinese Acad Sci, Hainan Trop Marine Biol Res Stn, South China Sea Inst Oceanol, Sanya, Peoples R China 9.Zhang, Fang 10.[Liu, Cheng-Yue |
| 推荐引用方式 GB/T 7714 | Liu, Cheng-Yue,Zhang, Fang,Sun, You-Fang,et al. Effects of Nitrate Enrichment on Respiration, Photosynthesis, and Fatty Acid Composition of Reef Coral Pocillopora damicornis Larvae[J]. FRONTIERS IN MARINE SCIENCE,2020,7:531. |
| APA | Liu, Cheng-Yue,Zhang, Fang,Sun, You-Fang,Yu, Xiao-Lei,&Huang, Hui.(2020).Effects of Nitrate Enrichment on Respiration, Photosynthesis, and Fatty Acid Composition of Reef Coral Pocillopora damicornis Larvae.FRONTIERS IN MARINE SCIENCE,7,531. |
| MLA | Liu, Cheng-Yue,et al."Effects of Nitrate Enrichment on Respiration, Photosynthesis, and Fatty Acid Composition of Reef Coral Pocillopora damicornis Larvae".FRONTIERS IN MARINE SCIENCE 7(2020):531. |
入库方式： OAI收割
来源：南海海洋研究所
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