Protein function
Encodes a light-labile photoreceptor.
Phenotype
Single mutant: phyd single mutant does not display any flowering-time phenotype.
[Devlin et al., 1999] Multiple mutant: The mutation of
PHYD enhance the early flowering time of the
phyB mutant under LD conditions. ( No data available under SD conditions.)
[Devlin et al., 1999] Function:Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reductase, rRNA, etc. It also controls the expression of its own gene(s) in a negative feedback fashion.
[Data from UniProt]
Regulators, targets and interactors
Downstream actors
Upstream actors
Protein-protein interactions
PHYB --
[Clack et al., 2009] --
[View TAIR record] PHYE --
[Clack et al., 2009] --
[View TAIR record]