干旱区生态环境知识资源中心(Arid): Response of photosynthetic systems to salinity stress in the desert cyanobacterium Scytonema javanicurn

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DOI	10.1016/j.asr.2013.10.002
	Response of photosynthetic systems to salinity stress in the desert cyanobacterium Scytonema javanicurn
	Hu, Jinlu 1,2,3; Jin, Liang 2; Wang, Xiaojuan 2; Cai, Wenkai 1,3; Liu, Yongding 1; Wang, Gaohong 1
通讯作者	Wang, Gaohong
来源期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
EISSN	1879-1948
出版年	2014
卷号	53 期号:1 页码:30-36
英文摘要	The present study investigated the physiological and biochemical characteristics of Scytonema javanicum, a pioneer species isolated from desert biological crusts, under salinity stress. Pigment analysis showed that salinity decreased chlorophyll a and phycocyanin content, while low salinity increased carotenoid concentration and high salinity decreased carotenoid concentration. Salinity also inhibited CO, assimilation rate and photosynthetic oxygen evolution in this cyanobacterium. Chlorophyll a fluorescence transient parameters (phi Po, phi Eo, psi O, RC/ABS, RC/CS, PIABS, and PICS) were decreased under salt stress, while dVo/dto(Mo), Vj and phi Do were increased. The decrease of ETRmax and Yield and the change of chlorophyll a fluorescence transients showed that salt stress had an important influence on photosynthesis. These results indicated that the effects of salinity stress on photosynthesis in S. javanicum may depend on the inhibition of electron transport and the inactivation of the reaction centers, but this inhibition may occur in the electron transport pathway at the PSII donor and acceptor sites. (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.
英文关键词	Desert cyanobacterium Salt stress Photosynthetic character JIP test Adaptation
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000330335800004
WOS关键词	CHLOROPHYLL-A ; GREEN-ALGA ; FLUORESCENCE MEASUREMENTS ; PHOTOSYSTEM-II ; INNER-MONGOLIA ; CRUSTS ; PLANTS ; CHINA ; ACCUMULATION ; TOLERANCE
WOS类目	Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/180408
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China; 2.Lanzhou Univ, Sch Pastoral Agr Sci & Technol, Lanzhou 730020, Gansu, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Hu, Jinlu,Jin, Liang,Wang, Xiaojuan,et al. Response of photosynthetic systems to salinity stress in the desert cyanobacterium Scytonema javanicurn[J]. 兰州大学,2014,53(1):30-36.
APA	Hu, Jinlu,Jin, Liang,Wang, Xiaojuan,Cai, Wenkai,Liu, Yongding,&Wang, Gaohong.(2014).Response of photosynthetic systems to salinity stress in the desert cyanobacterium Scytonema javanicurn.ADVANCES IN SPACE RESEARCH,53(1),30-36.
MLA	Hu, Jinlu,et al."Response of photosynthetic systems to salinity stress in the desert cyanobacterium Scytonema javanicurn".ADVANCES IN SPACE RESEARCH 53.1(2014):30-36.