A siphonous morphology affects light-harvesting modulation in the intertidal green macroalga Bryopsis corticulans (Ulvophyceae)

doi:10.1007/s00425-018-2854-5

IB-CAS > 中科院光生物学重点实验室

	A siphonous morphology affects light-harvesting modulation in the intertidal green macroalga Bryopsis corticulans (Ulvophyceae)
	Giovagnetti, Vasco ; Han, Guangye ; Ware, Maxwell A.; Ungerer, Petra ; Qin, Xiaochun ; Wang, Wen-Da ; Kuang, Tingyun ; Shen, Jian-Ren; Ruban, Alexander V.
	2018
发表期刊	PLANTA
ISSN	0032-0935
卷号	247 期号:6 页码:1293-1306
摘要	Main conclusion The macroalga Bryopsis corticulans relies on a sustained protective NPQ and a peculiar body architecture to efficiently adapt to the extreme light changes of intertidal shores. During low tides, intertidal algae experience prolonged high light stress. Efficient dissipation of excess light energy, measured as non-photochemical quenching (NPQ) of chlorophyll fluorescence, is therefore required to avoid photodamage. Light-harvesting regulation was studied in the intertidal macroalga Bryopsis corticulans, during high light and air exposure. Photosynthetic capacity and NPQ kinetics were assessed in different filament layers of the algal tufts and in intact chloroplasts to unravel the nature of NPQ in this siphonous green alga. We found that the morphology and pigment composition of the B. corticulans body provides functional segregation between surface sunlit filaments (protective state) and those that are underneath and undergo severe light attenuation (light-harvesting state). In the surface filaments, very high and sustained NPQ gradually formed. NPQ induction was triggered by the formation of transthylakoid proton gradient and independent of the xanthophyll cycle. PsbS and LHCSR proteins seem not to be active in the NPQ mechanism activated by this alga. Our results show that B. corticulans endures excess light energy pressure through a sustained protective NPQ, not related to photodamage, as revealed by the unusually quick restoration of photosystem II (PSII) function in the dark. This might suggest either the occurrence of transient PSII photoinactivation or a fast rate of PSII repair cycle.
关键词	Bryopsis corticulans Intertidal algae Light harvesting LHCSR Non-photochemical quenching PsbS
学科领域	Plant Sciences
DOI	10.1007/s00425-018-2854-5
收录类别	SCI
语种	英语
WOS关键词	CHLOROPHYLL-PROTEIN COMPLEXES ; ULVA-ROTUNDATA ; PSBS PROTEIN ; DELTA-PH ; CHLAMYDOMONAS-REINHARDTII ; ANGSTROM RESOLUTION ; PHOTOSYSTEM-II ; ALGA ; PHOTOSYNTHESIS ; PHOTOPROTECTION
WOS记录号	WOS:000431883400003
出版者	SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	1432-2048
资助机构	Royal Society grant International Exchanges Scheme [IE141041] ; NSFC International Exchanges Scheme [31511130065] ; Royal Society for the Wolfson Research Merit Award ; Leverhulme TrustLeverhulme Trust [RPG-2015-008] ; BBSRCUK Research & Innovation (UKRI)Biotechnology and Biological Sciences Research Council (BBSRC) [BB/L019027/1] ; Key Research Project for Frontier Science from CAS, China [QYZDY-SSW-SMC003] ; Biotechnology and Biological Sciences Research CouncilUK Research & Innovation (UKRI)Biotechnology and Biological Sciences Research Council (BBSRC) [BB/R015694/1, BB/E009743/1] Funding Source: researchfish ; Engineering and Physical Sciences Research CouncilUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/H024697/1] Funding Source: researchfish ; BBSRCUK Research & Innovation (UKRI)Biotechnology and Biological Sciences Research Council (BBSRC) [BB/E009743/1, BB/R015694/1] Funding Source: UKRI ; EPSRCUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/H024697/1] Funding Source: UKRI
作者邮箱	shen@cc.okayama-u.ac.jp ; a.ruban@qmul.ac.uk
作品OA属性	hybrid, Green Published
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20688
专题	中科院光生物学重点实验室
作者单位	1.[Giovagnetti, Vasco 2.Ware, Maxwell A. 3.Ungerer, Petra 4.Ruban, Alexander V.] Queen Mary Univ London, Sch Biol & Chem Sci, Mile End Rd, London EL 4NS, England 5.[Han, Guangye 6.Qin, Xiaochun 7.Wang, Wen-Da 8.Kuang, Tingyun 9.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Photosynthesis Res Ctr, Beijing 100093, Peoples R China 10.Okayama Univ, Grad Sch Nat Sci & Technol, Res Inst Interdisciplinary Sci, 3-1-1 Tsushima, Naka, Okayama 7008530, Japan
推荐引用方式 GB/T 7714	Giovagnetti, Vasco,Han, Guangye,Ware, Maxwell A.,et al. A siphonous morphology affects light-harvesting modulation in the intertidal green macroalga Bryopsis corticulans (Ulvophyceae)[J]. PLANTA,2018,247(6):1293-1306.
APA	Giovagnetti, Vasco.,Han, Guangye.,Ware, Maxwell A..,Ungerer, Petra.,Qin, Xiaochun.,...&Ruban, Alexander V..(2018).A siphonous morphology affects light-harvesting modulation in the intertidal green macroalga Bryopsis corticulans (Ulvophyceae).PLANTA,247(6),1293-1306.
MLA	Giovagnetti, Vasco,et al."A siphonous morphology affects light-harvesting modulation in the intertidal green macroalga Bryopsis corticulans (Ulvophyceae)".PLANTA 247.6(2018):1293-1306.

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