Phenomenon of Temperature-Dependent Chlorophyll Deficiency in Festuca pratensis

Phenomenon of Temperature-Dependent Chlorophyll Deficiency in Festuca pratensis The composition and amount of pigments were studied in temperature-dependent chlorophyll-deficient seedlings of wild type (control) and several mutant lines of Festuca pratensis Huds. at room (25°C) and high (35°C) temperatures. In seedlings of all mutant lines grown at 25°C, chlorophyll b content was lower and the concentration of carotenoids was higher than in control seedlings. At 35°C, the concentration of all pigments decreased in a row from dark-green to xantha phenotypes, and this trend was retained when the temperature was lowered to 25°C. The phenotype xantha completely lacked violaxanthin and neoxanthin. The observed effects are related to the protective dissipative function of the xanthophyll cycle. Russian Journal of Plant Physiology Springer Journals

Phenomenon of Temperature-Dependent Chlorophyll Deficiency in Festuca pratensis

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Kluwer Academic Publishers-Plenum Publishers
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Life Sciences; Plant Sciences
Publisher site
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