Document Detail

Relationship of fluorescence and thermal emission from isolated thylakoids under light stress conditions.
MedLine Citation:
PMID:  15260113     Owner:  NLM     Status:  MEDLINE    
Simultaneous measurements of fluorescence and thermal emission have been made by a combined fluorescence and photoacoustic techniques on isolated thylakoids pretreated by a prolonged illumination of saturating light. The traces of the signals are used to calculate four characteristic parameters, energy storage, half-saturation intensity, number of photons to close reaction center, and a constant for quasi-equlibria between (re)oxidized and reduced quinone acceptors. These parameters are used to study the response of photosynthetic apparatus functioning under photoinhibition stress. The defense mechanism seems to possess an efficient cooperativity of reaction centers under stress conditions.
Dejan Markovic
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Indian journal of experimental biology     Volume:  42     ISSN:  0019-5189     ISO Abbreviation:  Indian J. Exp. Biol.     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-07-20     Completed Date:  2004-08-30     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0233411     Medline TA:  Indian J Exp Biol     Country:  India    
Other Details:
Languages:  eng     Pagination:  604-10     Citation Subset:  IM    
Faculty of Technology, University of Nis, 16000 Leskovac, Serbia. dzmarkovic@ptt.yu
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MeSH Terms
Benzoquinones / chemistry
Hot Temperature
Light-Harvesting Protein Complexes
Plant Physiological Phenomena
Spinacia oleracea / metabolism
Thylakoids / chemistry*
Time Factors
Reg. No./Substance:
0/Benzoquinones; 0/Light-Harvesting Protein Complexes; 106-51-4/benzoquinone

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