WRKY7 — Cucumis sativus

Summary

CSA_7G378410, designated WRKY7 (also known as WRKY51), encodes a WRKY transcription factor with a WRKY DNA-binding domain and a zinc-cluster domain. The protein localises to the nucleus, cytosol, plasma membrane and vacuole, and exhibits sequence-specific DNA binding, calmodulin binding, and protein homodimerisation activity. In cucumber, WRKY7 is associated with the downregulation of photosynthesis, chlorophyll and anthocyanin metabolism, carotene and zeatin anabolism, polyamine metabolism, abscisic acid-mediated stomatal movement, sex determination, and organ growth. It is linked to fruit length, fruit colour, fruit size, sugar content, soluble protein content, carotenoid content, chlorophyll content, net photosynthetic rate, transpiration rate, quantum yield, stomatal resistance, drought sensitivity, and germination rate. The gene is also connected to resistance and susceptibility to Pseudomonas syringae, jasmonic acid signalling, and leaf morphology. Related genes in other species link the WRKY7 family to heat response, osmotic stress tolerance, calcium signalling, and basal defence.