Phosphorylation of chloroplast membrane proteins partially protects against photoinhibition
- 1 January 1985
- journal article
- research article
- Published by Springer Nature in Planta
- Vol. 165 (1) , 37-42
- https://doi.org/10.1007/bf00392209
Abstract
Thylakoids isolated from peas (Pisum sativum cv. Kelvedon Wonder) and phosphorylated by incubation with ATP have been compared with non-phosphorylated thylakoids in their sensitivity to photoinhibition by exposure to illumination in vitro. Assays of the kinetics of fluorescence induction at 20° C and the fluorescence emission spectra at-196° C indicate a proportionally larger decrease in fluorescence as a result of photoinhibitory treatment of non-phosphorylated compared with phosphorylated thylakoids. It is concluded that protein phosphorylation can afford partial protection to thylakoids exposed to photoinhibitory conditions.Keywords
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