Photoinhibition of photosystem I at chilling temperature and subsequent recovery in Arabidopsis thaliana.

Abstract

Chilling-induced photoinhibition and subsequent recovery was studied in Arabidopsis thaliana exposed to 4 degrees C and 150 micromol photons m(-2) s(-1). PSII showed progressive damage with a 14% decrease in quantum yield after 8 h exposure. In contrast, the damage to PSI leveled off after 8 h with a decrease in in vitro NADP+ photoreduction activity of… (More)

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