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	Impaired photosynthesis in phosphatidylglycerol-deficient mutant of cyanobacterium anabaena sp pcc7120 with a disrupted gene encoding a putative phosphatidylglycerophosphatase
	Wu, Feng; Yang, Zhenle; Kuang, Tingyun
刊名	Plant physiology
	2006-08-01
卷号	141期号:4页码:1274-1283
ISSN号	0032-0889
DOI	10.1104/pp.106.083451
通讯作者	Yang, zhenle(yangzhl@ibcas.ac.cn)
英文摘要	Phosphatidylglycerol ( pg) is a ubiquitous phospholipid in thylakoid membranes of cyanobacteria and chloroplasts and plays an important role in the structure and function of photosynthetic membranes. the last step of the pg biosynthesis is dephosphorylation of phosphatidylglycerophosphate (pgp) catalyzed by pgp phosphatase. however, the gene-encoding pgp phosphatase has not been identified and cloned from cyanobacteria or higher plants. in this study, we constructed a pg-deficient mutant from cyanobacterium anabaena sp. pcc7120 with a disrupted gene (alr1715, a gene for alr1715 protein, genbank accession no. bab78081) encoding a putative pgp phosphatase. the obtained mutant showed an approximately 30% reduction in the cellular content of pg. following the reduction in the pg content, the photoautotrophical growth of the mutant was restrained, and the cellular content of chlorophyll was decreased. the decreases in net photosynthetic and photosystem ii (psii) activities on a cell basis also occurred in this mutant. simultaneously, the photochemical efficiency of psii was considerably declined, and less excitation energy was transferred toward psii. these findings demonstrate that the alr1715 gene of anabaena sp. pcc7120 is involved in the biosynthesis of pg and essential for photosynthesis.
WOS关键词	MEMBRANE-BOUND PHOSPHATASES ; SYNECHOCYSTIS SP PCC-6803 ; PHOTOSYSTEM-II PARTICLES ; SP-STRAIN PCC-7120 ; ESCHERICHIA-COLI ; ARABIDOPSIS-THALIANA ; SULFOQUINOVOSYL DIACYLGLYCEROL ; CHLAMYDOMONAS-REINHARDTII ; OSCILLATORIA-CHALYBEA ; THYLAKOID MEMBRANES
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
语种	英语
出版者	AMER SOC PLANT BIOLOGISTS
WOS记录号	WOS:000239636800013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2379774
专题	中国科学院大学
通讯作者	Yang, Zhenle
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Photosynth & Environm Mol Physiol, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Feng,Yang, Zhenle,Kuang, Tingyun. Impaired photosynthesis in phosphatidylglycerol-deficient mutant of cyanobacterium anabaena sp pcc7120 with a disrupted gene encoding a putative phosphatidylglycerophosphatase[J]. Plant physiology,2006,141(4):1274-1283.
APA	Wu, Feng,Yang, Zhenle,&Kuang, Tingyun.(2006).Impaired photosynthesis in phosphatidylglycerol-deficient mutant of cyanobacterium anabaena sp pcc7120 with a disrupted gene encoding a putative phosphatidylglycerophosphatase.Plant physiology,141(4),1274-1283.
MLA	Wu, Feng,et al."Impaired photosynthesis in phosphatidylglycerol-deficient mutant of cyanobacterium anabaena sp pcc7120 with a disrupted gene encoding a putative phosphatidylglycerophosphatase".Plant physiology 141.4(2006):1274-1283.

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