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A regulation of the photosynthetic antenna crossection at the molecular level

100%

Gruszecki W. I., Matula M., Krupa Z.

Biological Bulletin of Poznań. Supplement

1995

tom 32

Photo-oxidation of chlorophyll A in digalactosyldiacylglycerol liposomes containing xanthophyll pigments: indication of a special photoprotective ability of zeaxanthin

100%

Sielewiesiuk J., Matula M., Gruszecki W. I.

Cellular and Molecular Biology Letters

1997

tom 02

nr 1

Photoprotective efficiency of lutein, zeaxanthin and violaxanthin in liposomes made of digalactosyldiacylglycerol (DGDG) has been investigated. It was found that zeaxanthin is about ten times more effective than the two other xanthophylls in inhibition of chlorophyll a photo-oxidation. Kinetics of chlorophyll photobleaching suggests that exceptional photoprotective efficacy of zeaxanthin in membranes consists in effective scavenging of free radicals. High photoprotective efficiency of zeaxanthin in membranes correlates with its physiological function.

Ograniczanie wyników

1 Biological Bulletin of Poznań. Supplement

1 Cellular and Molecular Biology Letters

2 Gruszecki W. I.

2 Matula M.

1 Krupa Z.

1 Sielewiesiuk J.

1 1997

1 1995

Wyniki wyszukiwania

A regulation of the photosynthetic antenna crossection at the molecular level

Photo-oxidation of chlorophyll A in digalactosyldiacylglycerol liposomes containing xanthophyll pigments: indication of a special photoprotective ability of zeaxanthin