Photosynthetic Electron Transport Controls Expression of the High Light Inducible Gene in the Cyanobacterium Synechococcus elongatus Strain PCC 7942 | Zendy

Kavitha Salem | Zendy; Lorraine G. van Waasbergen | Zendy

Open Access

Photosynthetic Electron Transport Controls Expression of the High Light Inducible Gene in the Cyanobacterium Synechococcus elongatus Strain PCC 7942

Author(s) -

Kavitha Salem,

Lorraine G. van Waasbergen

Publication year - 2004

Publication title -

plant and cell physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.975

H-Index - 152

eISSN - 1471-9053

pISSN - 0032-0781

DOI - 10.1093/pcp/pch072

Subject(s) - photosynthesis , synechococcus , chemistry , dcmu , gene expression , transcription (linguistics) , electron transport chain , gene , light intensity , messenger rna , cytochrome f , regulation of gene expression , photosystem ii , photochemistry , microbiology and biotechnology , biology , cyanobacteria , biochemistry , photosystem i , genetics , linguistics , philosophy , physics , bacteria , optics

The hliA gene of Synechococcus, encoding a photoprotective high light inducible polypeptide, is up-regulated by high light (HL) or low intensity blue/UV-A light (BL). hliA expression was found to be up-regulated by KCN in low light (LL) (but not in the dark), and up-regulation in HL, BL, and LL (with KCN) was inhibited by 2,5-dibromo-3-methyl-6-isopropyl-benzoquinone. A working hypothesis is proposed whereby up-regulation is in response to the reduced state of cytochrome b(6)f or a carrier beyond in photosynthesis. Modest up-regulation occurs in LL by treatment with 3-(3,4-dichlorophenyl)-1,1-dimethylurea, but this is related to effects on hliA mRNA stability rather than on transcription.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research