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Effects of hypo- and hypersalinity on photosynthetic performance of Sargassum fusiforme (Fucales, Heterokontophyta)
Xie, X. J.1,3; Wang, X. L.1,3,4; Lin, L. D.2; He, L. W.1,3; Gu, W. H.1,3; Gao, S.1,3; Yan, X. F.2; Pan, G. H.5; Wu, M. J.2; Wang, G. C.1,3
2016-06-01
发表期刊PHOTOSYNTHETICA
卷号54期号:2页码:210-218
文章类型Article
摘要Photoprotection mechanisms protect photosynthetic organisms, especially under stress conditions, against photodamage that may inhibit photosynthesis. We investigated the effects of short-term immersion in hypo- and hypersalinity sea water on the photosynthesis and xanthophyll cycle in Sargassum fusiforme (Harvey) Setchell. The results indicated that under moderate light [110 mu mol(photon) m(-2) s(-1)], the effective quantum yield of PSII was not reduced in S. fusiforme fronds after 1 h in hyposalinity conditions, even in fresh water, but it was significantly affected by extreme hypersalinity treatment (90aEuro degrees sea water). Under high light [HL, 800 mu mol(photon) m(-2) s(-1)], photoprotective mechanisms operated efficiently in fronds immersed in fresh water as indicated by high reversible nonphotochemical quenching of chlorophyll fluorescence (NPQ) and de-epoxidation state; the quantum yield of PSII recovered during the subsequent relaxation period. In contrast, fronds immersed in 90aEuro degrees sea water did not withstand HL, barely developed reversible NPQ, and accumulated little antheraxanthin and zeaxanthin during HL, while recovery of the quantum yield of PSII was severely inhibited during the subsequent relaxation period. The data provided concrete evidence supporting the short-term tolerance of S. fusiforme to immersion in fresh water compared to hypersalinity conditions. The potential practical implications of these results were also discussed.
关键词Aquaculture Chlorophyll a Fluorescence Dithiothreitol Rapid Light Curve Violaxanthin
DOI10.1007/s11099-015-0169-3
收录类别SCI
语种英语
WOS记录号WOS:000374844100005
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/131019
专题实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Wenzhou Univ, Coll Life & Environm Sci, Zhejiang Prov Key Lab Water Environm & Marine Bio, Wenzhou 325035, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
5.Tianjin Univ Sci & Technol, Coll Marine Sci & Engn, Tianjin Key Lab Marine Sources & Chem, Tianjin 300457, Peoples R China
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Xie, X. J.,Wang, X. L.,Lin, L. D.,et al. Effects of hypo- and hypersalinity on photosynthetic performance of Sargassum fusiforme (Fucales, Heterokontophyta)[J]. PHOTOSYNTHETICA,2016,54(2):210-218.
APA Xie, X. J..,Wang, X. L..,Lin, L. D..,He, L. W..,Gu, W. H..,...&Wang, G. C..(2016).Effects of hypo- and hypersalinity on photosynthetic performance of Sargassum fusiforme (Fucales, Heterokontophyta).PHOTOSYNTHETICA,54(2),210-218.
MLA Xie, X. J.,et al."Effects of hypo- and hypersalinity on photosynthetic performance of Sargassum fusiforme (Fucales, Heterokontophyta)".PHOTOSYNTHETICA 54.2(2016):210-218.
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