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	Effect of Hypoxia on Photosystem II of Tropical Seagrass Enhalus acoroides in the Dark
	Che, Xingkai1,2; Zhang, Tie1,2,3; Li, Hu1,2; Zhang, Litao1,2,4; Liu, Jianguo1,2,4
	2021-11-03
发表期刊	PHOTOCHEMISTRY AND PHOTOBIOLOGY
ISSN	0031-8655
页码	8
通讯作者	Liu, Jianguo([email protected])
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.
DOI	10.1111/php.13522
收录类别	SCI
语种	英语
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
WOS类目	Biochemistry & Molecular Biology ; Biophysics
WOS记录号	WOS:000714083200001
出版者	WILEY
引用统计	被引频次：6[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/177126
专题	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
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
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.

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文件名称/大小	文献类型	版本类型	开放类型	使用许可
Photochem Photobio（1415KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览

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