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	Biogenesis of chlorophyll-binding proteins under iron stress in Synechocystis sp PCC 6803
	Liu, X ; Zhao, J ; Wu, Q
	2010-05-11 ; 2010-05-11
关键词	chlorophyll synthesis chlorophyll-binding proteins cyanobacterium fluorescence emission iron stress IsiA SYNECHOCOCCUS SP PCC7942 SP PCC 6803 ISIA GENE PHOTOSYSTEM-I SP PCC-7942 CYANOBACTERIA LIGHT DEFICIENCY STRAINS COMPLEX Biochemistry & Molecular Biology
中文摘要	The biogenesis of chlorophyll-binding proteins under iron stress has been investigated in vivo in a chlN deletion mutant of Synechocystis sp. PCC 6803. The chlN gene encodes one subunit of the light-independent protochlorophyllide reductase. The mutant is unable to synthesize chlorophyll in darkness, causing chlorophyll biosynthesis to become light dependent. When the mutant was propagated in darkness, essentially no chlorophyll and photosystems were detected. Upon return of the chlN deletion mutant to light, 77 K fluorescence emission spectra and oxygen evolution of greening cells under iron-sufficient or -deficient conditions were measured. The gradual blue shift of the photosystem I (PS 1) peak upon greening under iron stress suggested the structural alteration of newly synthesized PS I. Furthermore, the rate of biogenesis of PS II was delayed under iron stress, which might be due to the presence of IsiA.
语种	英语 ; 英语
出版者	MAIK NAUKA/INTERPERIODICA ; NEW YORK ; C/O KLUWER ACADEMIC-PLENUM PUBLISHERS, 233 SPRING ST, NEW YORK, NY 10013-1578 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/26592]
专题	清华大学
推荐引用方式 GB/T 7714	Liu, X,Zhao, J,Wu, Q. Biogenesis of chlorophyll-binding proteins under iron stress in Synechocystis sp PCC 6803[J],2010, 2010.
APA	Liu, X,Zhao, J,&Wu, Q.(2010).Biogenesis of chlorophyll-binding proteins under iron stress in Synechocystis sp PCC 6803..
MLA	Liu, X,et al."Biogenesis of chlorophyll-binding proteins under iron stress in Synechocystis sp PCC 6803".(2010).

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