High salt stress in the upper part of floating mats of Ulva prolifera, a species that causes green tides, enhances non-photochemical quenching

doi:10.1111/jpy.12881

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

	High salt stress in the upper part of floating mats of Ulva prolifera, a species that causes green tides, enhances non-photochemical quenching
	Zheng, Zhenbing 2; Gao, Shan 2; Wang, Guangce 1,2
刊名	JOURNAL OF PHYCOLOGY
	2019-08-24
页码	9
关键词	F-v F-m green tide non-photochemical quenching salt stress Ulva prolifera
ISSN号	0022-3646
DOI	10.1111/jpy.12881
通讯作者	Gao, Shan(shangao@qdio.ac.cn) ; Wang, Guangce(gcwang@qdio.ac.cn)
英文摘要	Salt stress is a major abiotic stress factor that can induce many adverse effects on photosynthetic organisms. Plants and algae have developed several mechanisms that help them respond to adverse environments. Non-photochemical quenching (NPQ) is one of these mechanisms. The thalli of algae in the intertidal zone that are attached to rocks can be subjected to salt stress for a short period of time due to the rise and fall of the tide. Ulva prolifera causes green tides and can form floating mats when green tides occur and the upper part of the thalli is subjected to high salt stress for a long period of time. In this study, we compared the Ulva prolifera photosynthetic activities and NPQ kinetics when it is subjected to different salinities over various periods of time. Thalli exposed to a salinity of 90 for 4 d showed enhanced NPQ, and photosynthetic activities decreased from 60 min after exposure up to 4 d. This indicated that the induction of NPQ in Ulva prolifera under salt stress was closely related to the stressing extent and stressing time. The enhanced NPQ in the treated samples exposed for 4 d may explain why the upper layer of the floating mats formed by Ulva prolifera thalli were able to survive in the harsh environment. Further inhibitor experiments demonstrated that the enhanced NPQ was xanthophyll cycle and transthylakoid proton gradient-dependent. However, photosystem II subunit S and light-harvesting complex stress-related protein didn't over accumulate and may not be responsible for the enhanced NPQ.
资助项目	National Key R&D Program of China[2018YFD0901500] ; National Natural Science Foundation of China[41606161] ; National Natural Science Foundation of China[41506172] ; National Natural Science Foundation of China[41676157] ; National Natural Science Foundation of China[41606159] ; Distinguished Young Scientists Research Fund of Key Laboratory of Experimental Marine Biology, Chinese Academy of Sciences[KLEMB-DYS02] ; Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences[2017-003] ; Project of Science and Technology Bureau of Nantong[MS12017025-4] ; China Postdoctoral Science Foundation[2015M580614]
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
语种	英语
出版者	WILEY
WOS记录号	WOS:000483141100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/162759]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Gao, Shan; Wang, Guangce
作者单位	1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Expt Marine Biol, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Zhenbing,Gao, Shan,Wang, Guangce. High salt stress in the upper part of floating mats of Ulva prolifera, a species that causes green tides, enhances non-photochemical quenching[J]. JOURNAL OF PHYCOLOGY,2019:9.
APA	Zheng, Zhenbing,Gao, Shan,&Wang, Guangce.(2019).High salt stress in the upper part of floating mats of Ulva prolifera, a species that causes green tides, enhances non-photochemical quenching.JOURNAL OF PHYCOLOGY,9.
MLA	Zheng, Zhenbing,et al."High salt stress in the upper part of floating mats of Ulva prolifera, a species that causes green tides, enhances non-photochemical quenching".JOURNAL OF PHYCOLOGY (2019):9.