PHYCOBILISOMES AND ISOLATED PHYCOBILIPROTEINS. EFFECT OF GLUTARDIALDEHYDE AND BENZOQUINONE ON FLUORESCENCE

Köst, Hans-Peter and Rath, K. and Wanner, G. and Scheer, Hugo (1981): PHYCOBILISOMES AND ISOLATED PHYCOBILIPROTEINS. EFFECT OF GLUTARDIALDEHYDE AND BENZOQUINONE ON FLUORESCENCE. In: Photochemistry and Photobiology, Vol. 34: pp. 139-143

Abstract

The fluorescence of the biliproteins C-phycocyanin from Spirulina platensis, B-phycoerythrin from Porphyridium cruentum and of isolated whole P. cruentum phycobilisomes is quenched in the presence of glutardialdehyde (GA) or benzoquinone (BQ). The kinetics of fluorescence decrease thus induced is biphasic. If GA is used as a quencher, the fluorescence can be recovered at 77 K. Contrary to the GA-effect, only a minor recovery takes place with BQ at 77K, thus demonstrating a different mechanism of action of GA and BQ on biliproteins

• Item Type: Article
• Keywords: PHYCOBILISOMES; PHYCOBILIPROTEINS; GLUTARDIALDEHYDE; BENZOQUINONE; Photochemistry
• Collections: Biology
• Subjects: 500 Science > 570 Life sciences; biology