| LHCII organization and thylakoid lipids affect the sensitivity of the photosynthetic apparatus to high-light treatment. | |
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MedLine Citation:
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PMID: 21414793 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Pulse-amplitude-modulated (PAM) chlorophyll fluorescence and photosynthetic oxygen evolution were used to investigate the role of the different amount and organization of light-harvesting complexes of photosystem II (LHCII) in four pea species on the susceptibility of the photosynthetic apparatus to high-light treatment. In this work we analyzed the thylakoid membrane lipid composition of the studied pea plants. A relationship between the structural organization of LHCII proteins, the amount of the main lipid classes and the sensitivity of the photosynthetic apparatus to high-light treatment was found. The results reveal that the photosynthetic apparatus, enriched in oligomeric forms of LHCII concomitant with decreased amount of anionic lipids and increased content of the monogalactosyldiacylglycerol (MGDG), is less sensitive to high light. Our data also suggest that the degree of LHCII oligomerization, as well as the lipid composition do not influence the degree of recovery of the PSII photochemistry after excess light exposure. |
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Authors:
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Kolyo G Dankov; Anelia G Dobrikova; Bettina Ughy; Balázs Bogos; Zoltan Gombos; Emilia L Apostolova |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-2-26 |
Journal Detail:
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Title: Plant physiology and biochemistry : PPB / Societe francaise de physiologie vegetale Volume: - ISSN: 1873-2690 ISO Abbreviation: - Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-3-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882449 Medline TA: Plant Physiol Biochem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Masson SAS. All rights reserved. |
Affiliation:
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Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria. |
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