Document Detail


Requirement of carotene isomerization for the assembly of photosystem II in Synechocystis sp. PCC 6803.
MedLine Citation:
PMID:  15509857     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Carotene isomerase mutant (crtH mutant) cells of Synechocystis sp. PCC 6803 can accumulate beta-carotene under light conditions. However, the mutant cells grown under a light-activated heterotrophic growth condition contained detectable levels of neither beta-carotene nor D1 protein of the photosystem (PS) II reaction center, and no oxygen-evolving activity of PSII was detected. beta-Carotene and D1 protein appeared and a high level of PSII activity was detected after the cells were transferred to a continuous light condition. The PSI activities of thylakoid membranes from mutant cells were almost the same as those of thylakoid membranes from wild-type cells, both before and after transfer to the continuous light condition. These results suggest that beta-carotene is required for the assembly of PSII but not for that of PSI.
Authors:
Kazumori Masamoto; Shin-ichiro Hisatomi; Isamu Sakurai; Zoltán Gombos; Hajime Wada
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Plant & cell physiology     Volume:  45     ISSN:  0032-0781     ISO Abbreviation:  Plant Cell Physiol.     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-10-28     Completed Date:  2005-02-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9430925     Medline TA:  Plant Cell Physiol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1325-9     Citation Subset:  IM    
Affiliation:
Biological Laboratory, Faculty of Education, Kumamoto University, Kurokami 2-40-1, Kumamoto, 860-8555 Japan. masamoto@gpo.kumamoto-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Carotenoids / chemistry*
Chromatography, High Pressure Liquid
Isomerism
Photosystem II Protein Complex / chemistry*
Spectrum Analysis
Synechocystis / chemistry*
Chemical
Reg. No./Substance:
0/Photosystem II Protein Complex; 36-88-4/Carotenoids

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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