Photoprotection in the green tidal alga Ulva prolifera: role of LHCSR and PsbS proteins in response to high light stress

doi:10.1111/j.1438-8677.2012.00712.x

	Photoprotection in the green tidal alga Ulva prolifera: role of LHCSR and PsbS proteins in response to high light stress
	Mou, S.1; Zhang, X.1; Dong, M.2; Fan, X.1; Xu, J.3; Cao, S.2; Xu, D.1; Wang, W.2; Ye, N.1
刊名	PLANT BIOLOGY
	2013-11
卷号	15 期号:6 页码:1033-1039
关键词	High light LHCSR and PsbS proteins photoprotection Ulva prolifera
ISSN号	1435-8603
DOI	10.1111/j.1438-8677.2012.00712.x
英文摘要	Ulva prolifera, an intertidal macroalga, has to adapt to wide variations in light intensity, making this species particularly rewarding for studying the evolution of photoprotective mechanisms. Intense light induced increased non-photochemical quenching (NPQ) and stimulated de-epoxidation of xanthophyll cycle components, while DTT-treated samples had lower NPQ capacity, indicating that the xanthophyll cycle must participate in photoprotection. In this work, we found that the PsbS-related NPQ was maintained in U.prolifera. According to analysed gene expression, both LhcSR and psbS were up-regulated in high light, suggesting that these two genes are light-induced. LHCSR and PsbS proteins were present at different light intensities and accumulated under high light conditions, and PsbS concentrations were higher than LHCSR, showing that the NPQ mechanism of U.prolifera is more dependent on PsbS protein concentration. Moreover, the level of both LHCSR and PsbS proteins was high even in the darkness, and neither the transcript level nor protein content of LhcSR and psbS genes varied significantly following short-term exposure to intense light. These findings suggest that this alga can modulate NPQ levels through regulation of the xanthophyll cycle and concentrations of PsbS and/or LHCSR.
资助项目	National Marine Public Welfare Research Project[200805069]
WOS关键词	XANTHOPHYLL CYCLE ; PHOTOSYSTEM-II ; HARVESTING COMPLEX ; CHLAMYDOMONAS-REINHARDTII ; ARABIDOPSIS LEAVES ; ENERGY-DISSIPATION ; LOW-TEMPERATURE ; ANTENNA ; PLANTS ; FLUORESCENCE
WOS研究方向	Plant Sciences
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000325984000014
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25929]
专题	自然资源部第一海洋研究所
通讯作者	Ye, N.
作者单位	1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China 2.Qingdao Agr Univ, Qingdao, Peoples R China 3.SOA, Inst Oceanog 1, Key Lab Marine Bioact Subst, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Mou, S.,Zhang, X.,Dong, M.,et al. Photoprotection in the green tidal alga Ulva prolifera: role of LHCSR and PsbS proteins in response to high light stress[J]. PLANT BIOLOGY,2013,15(6):1033-1039.
APA	Mou, S..,Zhang, X..,Dong, M..,Fan, X..,Xu, J..,...&Ye, N..(2013).Photoprotection in the green tidal alga Ulva prolifera: role of LHCSR and PsbS proteins in response to high light stress.PLANT BIOLOGY,15(6),1033-1039.
MLA	Mou, S.,et al."Photoprotection in the green tidal alga Ulva prolifera: role of LHCSR and PsbS proteins in response to high light stress".PLANT BIOLOGY 15.6(2013):1033-1039.