Effect of choline chloride on photosynthetic oxygen release and variable and delayed fluorescence of chlorophyll in Chlamydomonas reinhardtii cells

The influence of the growth retardant chlorocholine chloride on the rate of photosynthetic oxygen evolution and the induction of chlorophyll fluorescence in unicellular green algae Chlamydomonas was studied depending on concentration and the time of cell growth. It was shown that low concentrations...

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Bibliographic Details
Published inBiofizika Vol. 46; no. 4; p. 647
Main Authors Shirshikova, G N, Kreslavskiĭ, V D, Ladygin, V G, Zharmukhamedov, S K, Ignat'ev, A R
Format Journal Article
LanguageRussian
Published Russia (Federation) 01.07.2001
Subjects
Animals
Chlamydomonas reinhardtii - drug effects
Chlamydomonas reinhardtii - metabolism
Chlamydomonas reinhardtii - physiology
Choline - pharmacology
Fluorescence
Kinetics
Oxygen - metabolism
Photosynthesis - drug effects
Plant Growth Regulators - pharmacology
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Summary:The influence of the growth retardant chlorocholine chloride on the rate of photosynthetic oxygen evolution and the induction of chlorophyll fluorescence in unicellular green algae Chlamydomonas was studied depending on concentration and the time of cell growth. It was shown that low concentrations chlorocholine chloride (0.02 g/l) affected insignificantly the photosynthesis and chlorophyll fluorescence. The growth of the culture in the presence of higher chlorocholine chloride concentrations (0.2 and 2 g/l) led to a significant reduction in the rate of oxygen production, and photoinduced changes in chlorophyll fluorescence yield. Young cells were more sensitive to chlorocholine chloride than old cells.
ISSN:0006-3029