Encodes a MYB-like nuclear transcription factor that promotes chloroplast development.
overexpressor is late flowering under both SD and LD conditions. ( The late flowering-time phenotype is stronger under LD conditions.) [Waters et al., 2008] Multiple mutant: glk1
does not display any flowering-time phenotype. [Waters et al., 2008] Function:
Transcriptional activator that functions with GLK2 to promote chloroplast development. Acts as an activator of nuclear photosynthetic genes involved in chlorophyll biosynthesis, light harvesting, and electron transport. Acts in a cell-autonomous manner to coordinate and maintain the photosynthetic apparatus within individual cells. May function in photosynthetic capacity optimization by integrating responses to variable environmental and endogenous cues (PubMed:11828027, PubMed:12220263, PubMed:17533111, PubMed:18643989, PubMed:19376934, PubMed:19383092, PubMed:19726569). Prevents premature senescence (PubMed:23459204). [Data from UniProt]
Regulators, targets and interactors