Absorption properties of the carotenoids after alkaline denaturation of the light-harvesting complex II from Ectothiorhodospira sp.

5Citations
Citations of this article
9Readers
Mendeley users who have this article in their library.

Abstract

Alkaline treatment of the Ectothiorhodospira sp. light harvesting system II induces monomerisation of the bacteriochlorophylls and a bleaching of the carotenoid absorption bands in the visible region. Concomitantly, the maximum of absorption observed around 373 nm shifts towards 354 nm. This shift does not result from the Soret band but from a change of the absorption properties of the carotenoids. Furthermore, these pigments are not modified chemically but the spectral conversion results from environmental changes. It is assumed that the dissociation of the bacteriochlorophylls in alkaline medium is accompanied by a structural reorganisation of the complex which reinforces the interactions between the polypeptides and the carotenoids.

Author supplied keywords

Cite

CITATION STYLE

APA

Buche, A., & Picorel, R. (2000). Absorption properties of the carotenoids after alkaline denaturation of the light-harvesting complex II from Ectothiorhodospira sp. Zeitschrift Fur Naturforschung - Section C Journal of Biosciences, 55(7–8), 576–581. https://doi.org/10.1515/znc-2000-7-816

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free