Nighttime hypoxia effects on ATP availability for photosynthesis in seagrass

doi:10.1111/pce.14654

IOCAS-IR > 实验海洋生物学重点实验室

	Nighttime hypoxia effects on ATP availability for photosynthesis in seagrass
	Che, Xingkai 1,2,3; Zhang, Tie1,2,4 ; Li, Hu1,2,3 ; Li, Yongfu 5; Zhang, Litao 1,2,3; Liu, Jianguo 1,2,3
	2023-06-18
发表期刊	PLANT CELL AND ENVIRONMENT
ISSN	0140-7791
页码	10
通讯作者	Liu, Jianguo(jgliu@qdio.ac.cn)
摘要	Hypoxia is a major emerging threat to coastal ecosystems, which is closely related to the decline in seagrass meadows, but its damage mechanism is still unclear. This study found that hypoxia at night significantly reduced the photosynthetic capacity of Enhalus acoroides after reillumination. Photosystem II (PSII) was damaged by high-light stress during daytime low-tide exposure, but high-light-damaged PSII of E. acoroides could recover part of its activity indark normoxic seawater to maintain the normal operation of photosynthesis after reillumination during the next day. However, hypoxia inhibited the recovery of damaged PSII under darkness. By transcriptomic analysis and inhibitor verification experiments, dark hypoxia was shown to inhibit respiration, thereby reducing ATP production and preventing ATP from being transported into chloroplasts, which, in turn, led to an insufficient supply of energy required for PSII to recover. This study demonstrated that hypoxia has several negative impacts on the photosynthetic apparatus of E. acoroides at night reducing photosynthetic capacity after reillumination, which may be an important factor leading to the decline of the seagrass meadows.
关键词	Enhalus acoroides photosystem II respiration
DOI	10.1111/pce.14654
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[32071577] ; National Natural Science Foundation of China[32201322] ; International Partnership Program of Chinese Academy of Sciences[GJHZ2039] ; Shandong Provincial Natural Science Foundation[ZR201911130493] ; Guangxi Key RD Program[2021AB34014]
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001007907900001
出版者	WILEY
WOS关键词	ZOSTERA-MARINA ; ALTERNATIVE OXIDASE ; TROPICAL SEAGRASS ; MITOCHONDRIAL ; OXYGEN ; CONSEQUENCES ; ENHANCEMENT ; RESPIRATION ; METABOLISM ; HAINAN
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182268
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, Inst Oceanol, Ctr Ocean Mega Sci, CAS, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.Hohai Univ, Coll Oceanog, Nanjing, 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. Nighttime hypoxia effects on ATP availability for photosynthesis in seagrass[J]. PLANT CELL AND ENVIRONMENT,2023:10.
APA	Che, Xingkai,Zhang, Tie,Li, Hu,Li, Yongfu,Zhang, Litao,&Liu, Jianguo.(2023).Nighttime hypoxia effects on ATP availability for photosynthesis in seagrass.PLANT CELL AND ENVIRONMENT,10.
MLA	Che, Xingkai,et al."Nighttime hypoxia effects on ATP availability for photosynthesis in seagrass".PLANT CELL AND ENVIRONMENT (2023):10.