The Damage Mechanisms of Dark Hypoxic Stress on Photosystem II of Cymodocea rotundata
文献类型：期刊论文
| 作者 | Zhang, Tie1,2 ; Che, Xingkai1,3; Li, Hu1,3; Zhang, Litao1,3; Liu, Jianguo1,3
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| 刊名 | PHOTOCHEMISTRY AND PHOTOBIOLOGY
 |
| 出版日期 | 2022-05-27 |
| 页码 | 9 |
| ISSN号 | 0031-8655 |
| DOI | 10.1111/php.13641 |
| 通讯作者 | Liu, Jianguo(jgliu@qdio.ac.cn) |
| 英文摘要 | Hypoxic stress is a major threat to the survival of seagrass but its damage mechanism is unclear. In order to explore the causes of seagrass meadow decline due to hypoxia, the effects of hypoxia in the dark on photosystem II (PSII) of Cymodocea rotundata, a widely distributed seagrass in Indo-Pacific area, were investigated in this study. The results show that dark hypoxic stress resulted in the inactivation of PSII reaction center, as well as the damage of PSII donor and acceptor sides in C. rotundata. These damages to PSII were not related to leaf senescence, but to the reactive oxygen species (ROS) accumulation. The lower the seawater oxygen content and the longer the hypoxic duration, the harder the recovery of PSII activity under dark normoxia because of dark hypoxia caused D1 protein injury. The interference of hypoxia on the AOX respiratory pathway is an important cause of the PSII damage under dark hypoxic stress. The PSII damage would result in a significant decrease in the photosynthetic activity, thereby affecting the growth and development of C. rotundata. Based on the above results, it is suggested that dark hypoxia may be an important cause of decline of C. rotundata meadow. |
| 资助项目 | Strategic Priority Research Program of the 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:000800633600001 |
| 出版者 | WILEY |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/179320]  |
| 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, Inst Oceanol, Ctr Ocean Mega Sci, CAS & Shandong Key Lab Expt Marine Biol, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Tie,Che, Xingkai,Li, Hu,et al. The Damage Mechanisms of Dark Hypoxic Stress on Photosystem II of Cymodocea rotundata[J]. PHOTOCHEMISTRY AND PHOTOBIOLOGY,2022:9. |
| APA | Zhang, Tie,Che, Xingkai,Li, Hu,Zhang, Litao,&Liu, Jianguo.(2022).The Damage Mechanisms of Dark Hypoxic Stress on Photosystem II of Cymodocea rotundata.PHOTOCHEMISTRY AND PHOTOBIOLOGY,9. |
| MLA | Zhang, Tie,et al."The Damage Mechanisms of Dark Hypoxic Stress on Photosystem II of Cymodocea rotundata".PHOTOCHEMISTRY AND PHOTOBIOLOGY (2022):9. |
入库方式： OAI收割
来源：海洋研究所
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