Coupling Factor for Photophosphorylation in Bean Etioplasts and Chloroplasts

1 February 1971

journal article
Published by Canadian Science Publishing in Canadian Journal of Biochemistry

Vol. 49 (2) , 207-209
https://doi.org/10.1139/o71-030

Abstract

Extracts from either bean chloroplasts or etioplasts stimulate photophosphorylation in partially deficient chloroplast residues. Both extracts contain a latent Ca²⁺-dependent ATPase but the specific activity of the chloroplast extract is about sevenfold higher. The etioplast ATPase appears to have identical properties to a spinach chloroplast ATPase that has been shown to be a modified coupling factor for photophosphorylation.

Keywords

SPINACH
CHLOROPLAST
BEAN
CA2
LATENT
PHOTOPHOSPHORYLATION
DEFICIENT
PARTIALLY
ETIOPLASTS
SEVENFOLD

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