Heat stress, especially when coupled with high light, accelerates the decline of tropical seagrass (Enhalus acoroides) meadows

doi:10.1016/j.marpolbul.2023.115043

CORC > 海洋研究所 > 中国科学院海洋研究所 > 实验海洋生物学重点实验室

	Heat stress, especially when coupled with high light, accelerates the decline of tropical seagrass (Enhalus acoroides) meadows
	Zhang, Mengjie 2,3; Li, Hu 2,3; Zhang, Litao 1,2,3; Liu, Jianguo 1,2,3
刊名	MARINE POLLUTION BULLETIN
	2023-07-01
卷号	192 页码:11
关键词	Enhalus acoroides Global warming Heat stress High light Photosynthetic physiology Seagrass decline
ISSN号	0025-326X
DOI	10.1016/j.marpolbul.2023.115043
通讯作者	Liu, Jianguo(jgliu@qdio.ac.cn)
英文摘要	Heat stress threatens the survival of seagrass, but its damage mechanisms are unclear. In this study, the results reveal that heat stress exceeding 36 degrees C in the dark caused inactivation of the PSII reaction center, damaging both the PSII donor and acceptor sides in Enhalus acoroides. High light further increased the damage to the photosynthetic apparatus under heat stress. The stronger the heat stress under high light, the harder the recovery of photosynthetic activity. Therefore, during ebb tide at noon in nature, heat stress combined with strong light would induce a significant, even irreversible decrease in photosynthetic activity. Moreover, the heat stress hindered the transcription of psbA and RuBisCO, enhanced respiratory O2, and induced severe peroxidation even if the SOD, APX, and GPX activities significantly improved. The results clearly suggest that heat stress, especially when coupled with high light, may be an important cause for the decline of E. acoroides meadows.
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] ; Guangxi Key R D Program[2021AB34014]
WOS关键词	GENE-EXPRESSION ; TEMPERATURE ; THERMOTOLERANCE ; PHOTOSYNTHESIS ; PLANTS ; RESPONSES ; GROWTH ; ENZYME ; LEAVES
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:001001389400001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/183189]
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.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, 1 Wenhai Rd, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Mengjie,Li, Hu,Zhang, Litao,et al. Heat stress, especially when coupled with high light, accelerates the decline of tropical seagrass (Enhalus acoroides) meadows[J]. MARINE POLLUTION BULLETIN,2023,192:11.
APA	Zhang, Mengjie,Li, Hu,Zhang, Litao,&Liu, Jianguo.(2023).Heat stress, especially when coupled with high light, accelerates the decline of tropical seagrass (Enhalus acoroides) meadows.MARINE POLLUTION BULLETIN,192,11.
MLA	Zhang, Mengjie,et al."Heat stress, especially when coupled with high light, accelerates the decline of tropical seagrass (Enhalus acoroides) meadows".MARINE POLLUTION BULLETIN 192(2023):11.