Abstract
Open reading frame ssr2016 encodes a protein with substantial sequence similarities to PGR5 identified as a component of the antimycin A-sensitive ferredoxin:plastoquinone reductase (FQR) in PSI cyclic photophosphorylation in Arabidopsis thaliana. We studied cyclic electron flow in Synechocystis sp. PCC 6803 in vivo in ssr2016 deletion mutants generated either in a wild-type background or in a ndhB deletion mutant. Our results indicate that ssr2016 is required for FQR and that it operates in a parallel pathway to the NDH1 complex. The ssr2016 deletion mutants are high light sensitive, suggesting that FQR might be important in controlling redox poise under adverse conditions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1433-1436 |
| Number of pages | 4 |
| Journal | Plant and Cell Physiology |
| Volume | 46 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2005 |
Fingerprint
Keywords
- Antimycin A
- Ferredoxin quinone reductase
- Photosystem I cyclic electron transport
- ssr2016
- Synechocystis sp. PCC 6803
ASJC Scopus subject areas
- Plant Science
- Physiology
- Cell Biology
Cite this
Open reading frame ssr2016 is required for antimycin A-sensitive photosystem I-driven cyclic electron flow in the cyanobacterium Synechocystis sp. PCC 6803. / Yeremenko, Nataliya; Jeanjean, Robert; Prommeenate, Peerada; Krasikov, Vladimir; Nixon, Peter J.; Vermaas, Willem; Havaux, Michel; Matthijs, Hans C P.
In: Plant and Cell Physiology, Vol. 46, No. 8, 08.2005, p. 1433-1436.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Open reading frame ssr2016 is required for antimycin A-sensitive photosystem I-driven cyclic electron flow in the cyanobacterium Synechocystis sp. PCC 6803
AU - Yeremenko, Nataliya
AU - Jeanjean, Robert
AU - Prommeenate, Peerada
AU - Krasikov, Vladimir
AU - Nixon, Peter J.
AU - Vermaas, Willem
AU - Havaux, Michel
AU - Matthijs, Hans C P
PY - 2005/8
Y1 - 2005/8
N2 - Open reading frame ssr2016 encodes a protein with substantial sequence similarities to PGR5 identified as a component of the antimycin A-sensitive ferredoxin:plastoquinone reductase (FQR) in PSI cyclic photophosphorylation in Arabidopsis thaliana. We studied cyclic electron flow in Synechocystis sp. PCC 6803 in vivo in ssr2016 deletion mutants generated either in a wild-type background or in a ndhB deletion mutant. Our results indicate that ssr2016 is required for FQR and that it operates in a parallel pathway to the NDH1 complex. The ssr2016 deletion mutants are high light sensitive, suggesting that FQR might be important in controlling redox poise under adverse conditions.
AB - Open reading frame ssr2016 encodes a protein with substantial sequence similarities to PGR5 identified as a component of the antimycin A-sensitive ferredoxin:plastoquinone reductase (FQR) in PSI cyclic photophosphorylation in Arabidopsis thaliana. We studied cyclic electron flow in Synechocystis sp. PCC 6803 in vivo in ssr2016 deletion mutants generated either in a wild-type background or in a ndhB deletion mutant. Our results indicate that ssr2016 is required for FQR and that it operates in a parallel pathway to the NDH1 complex. The ssr2016 deletion mutants are high light sensitive, suggesting that FQR might be important in controlling redox poise under adverse conditions.
KW - Antimycin A
KW - Ferredoxin quinone reductase
KW - Photosystem I cyclic electron transport
KW - ssr2016
KW - Synechocystis sp. PCC 6803
UR - http://www.scopus.com/inward/record.url?scp=24044531303&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=24044531303&partnerID=8YFLogxK
U2 - 10.1093/pcp/pci147
DO - 10.1093/pcp/pci147
M3 - Article
VL - 46
SP - 1433
EP - 1436
JO - Plant and Cell Physiology
JF - Plant and Cell Physiology
SN - 0032-0781
IS - 8
ER -