2011 Volume 75 Issue 12 Pages 2411-2414
Phytochromes are photoreceptors that regulate many aspects of plant growth and development in response to red/far-red light signals from the environment. In this study, we analyzed chromophore ligation and photochromism of missense phytochrome mutants in the Per-Arnt-Sim (PAS)-related domain (PRD). Among the 14 mutants analyzed, the Gly768Asp mutant of Avena phytochrome A showed aberrant photochromism and dark reversion, suggesting that amino acid residues in the C-terminal domain affect the photochemical properties of the photosensory N-terminal domain.
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