| Synechocystis sp. PCC 6803 mutant lacking both photosystems exhibits strong carotenoid-induced quenching of phycobilisome fluorescence. | |
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MedLine Citation:
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PMID: 21237162 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Blue light induced quenching in a Synechocystis sp. PCC 6803 strain lacking both photosystems is only related to allophycocyanin fluorescence. A fivefold decrease in the fluorescence level in two bands near 660 and 680nm is attributed to different allophycocyanin forms in the phycobilisome core. Some low-heat sensitive component inactivated at 53°C is involved in the quenching process. Enormous allophycocyanin fluorescence in the absence of the photosystems reveals a dark stage in this quenching. Thus, we present evidence that light activation of the carotenoid-binding protein and formation of a quenching center within the phycobilisome core in vivo are discrete events in a multistep process. |
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Authors:
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Marina G Rakhimberdieva; Fedor I Kuzminov; Irina V Elanskaya; Navassard V Karapetyan |
Publication Detail:
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Type: Journal Article Date: 2011-01-14 |
Journal Detail:
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Title: FEBS letters Volume: 585 ISSN: 1873-3468 ISO Abbreviation: FEBS Lett. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0155157 Medline TA: FEBS Lett Country: Netherlands |
Other Details:
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Languages: eng Pagination: 585-9 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved. |
Affiliation:
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A.N. Bakh Institute of Biochemistry, Russian Academy of Sciences, 119071 Moscow, Russia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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