Effect of Hypoxia on Photosystem II of Tropical Seagrass Enhalus acoroides in the Dark
文献类型：期刊论文
| 作者 | Che, Xingkai1,2; Zhang, Tie1,2,3 ; Li, Hu1,2; Zhang, Litao1,2,4; Liu, Jianguo1,2,4
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| 刊名 | PHOTOCHEMISTRY AND PHOTOBIOLOGY
 |
| 出版日期 | 2021-11-03 |
| 页码 | 8 |
| ISSN号 | 0031-8655 |
| DOI | 10.1111/php.13522 |
| 通讯作者 | Liu, Jianguo(jgliu@qdio.ac.cn) |
| 英文摘要 | Hypoxia induced by eutrophication has become an important factor threatening the survival of coastal life such as Enhalus acoroides. The purpose of the current study was to explore the effect of hypoxia on photosystem II (PSII) of E. acoroides in the dark. The results showed that long-term dark hypoxia damages PSII activity of E. acoroides. The lower the oxygen content and the longer the hypoxic duration, the more seriously PSII was damaged and the less light-independent recovery parts of the damaged PSII. The damage to PSII caused by hypoxia was unrelated to ROS but related to respiration, because the respiration rate decreased with the decrease of oxygen content and PSII activity decreased significantly even at a normal oxygen content after the inhibition of aerobic respiratory pathway. Hypoxia reduced energy fluxes between the antennas and the RCs, and generated many inactive RCs, which significantly reduced the electron transfer efficiency of PSII. Severe hypoxia (2.65 mg L-1 oxygen content) caused chlorophyll degradation. The study demonstrated that hypoxia damages PSII of E. acoroides and inhibits PSII recovery in the dark. We suggested that hypoxia together with other environment stressors would be the key reason for the decline of E. acoroides meadows. |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[32071577] ; International Partnership Program of Chinese Academy of Sciences[GJHZ2039] ; Shandong Provincial Natural Science Foundation[ZR201911130493] |
| WOS研究方向 | Biochemistry & Molecular Biology ; Biophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000714083200001 |
| 出版者 | WILEY |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/177125]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Liu, Jianguo |
| 作者单位 | 1.Chinese Acad Sci, CAS, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Key Lab Expt Marine Biol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Che, Xingkai,Zhang, Tie,Li, Hu,et al. Effect of Hypoxia on Photosystem II of Tropical Seagrass Enhalus acoroides in the Dark[J]. PHOTOCHEMISTRY AND PHOTOBIOLOGY,2021:8. |
| APA | Che, Xingkai,Zhang, Tie,Li, Hu,Zhang, Litao,&Liu, Jianguo.(2021).Effect of Hypoxia on Photosystem II of Tropical Seagrass Enhalus acoroides in the Dark.PHOTOCHEMISTRY AND PHOTOBIOLOGY,8. |
| MLA | Che, Xingkai,et al."Effect of Hypoxia on Photosystem II of Tropical Seagrass Enhalus acoroides in the Dark".PHOTOCHEMISTRY AND PHOTOBIOLOGY (2021):8. |
入库方式： OAI收割
来源：海洋研究所
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