Phytochrome A in etiolated wild-type and albino barley seedlings: a far-red pulse induces interconversion between the two physicochemically and functionally distinct phyA types - phyA' into phyA″.

Abstract excerpt

The phytochrome (phy) photoreceptors, comprising a small family of species, regulate plant development, being most active under red (R) and far-red (FR) light. One of the major phytochromes, phyA, is unique among the others: it mediates distinct photoreactions - the very low fluence responses (VLFR), the high irradiance responses (HIR), and the low fluence responses (LFR) characteristic of phyB. This functional...

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