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Inhibition of chlorophyll biosynthesis at the protochlorophyllide reduction step results in the parallel depletion of Photosystem I and Photosystem II in the cyanobacterium Synechocystis PCC 6803
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SYSNO ASEP 0393107 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Inhibition of chlorophyll biosynthesis at the protochlorophyllide reduction step results in the parallel depletion of Photosystem I and Photosystem II in the cyanobacterium Synechocystis PCC 6803 Author(s) Kopečná, Jana (MBU-M) RID
Sobotka, Roman (MBU-M) RID, ORCID
Komenda, Josef (MBU-M) RID, ORCIDSource Title Planta. - : Springer - ISSN 0032-0935
Roč. 237, č. 2 (2013), s. 497-508Number of pages 12 s. Language eng - English Country DE - Germany Keywords Chlorophyll biosynthesis ; Cyanobacteria ; Photosystems Subject RIV EE - Microbiology, Virology R&D Projects GAP501/10/1000 GA ČR - Czech Science Foundation (CSF) GBP501/12/G055 GA ČR - Czech Science Foundation (CSF) ED2.1.00/03.0110 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support MBU-M - RVO:61388971 UT WOS 000314062500012 DOI 10.1007/s00425-012-1761-4 Annotation In most oxygenic phototrophs, including cyanobacteria, two independent enzymes catalyze the reduction of protochlorophyllide to chlorophyllide, which is the penultimate step in chlorophyll (Chl) biosynthesis. One is light-dependent NADPH:protochlorophyllide oxidoreductase (LPOR) and the second type is dark-operative protochlorophyllide oxidoreductase (DPOR). To clarify the roles of both enzymes, we assessed synthesis and accumulation of Chl-binding proteins in mutants of cyanobacterium Synechocystis PCC 6803 that either completely lack LPOR or possess low levels of the active enzyme due to its ectopic regulatable expression. The LPOR-less mutant grew photoautotrophically in moderate light and contained a maximum of 20 % of the wild-type (WT) Chl level Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2014
Number of the records: 1