ACD2 — Cucumis sativus

Summary

CsACD2 (CSA_2G285290) on cucumber chromosome 2 encodes a red chlorophyll catabolite reductase (RCC_reductase family) with multiple annotated activities including 7-hydroxymethyl chlorophyll A reductase, pheophytinase, RCC reductase, Chl b reductase, pheophorbide A oxygenase, and chlorophyll b synthesis activity. The gene is associated with chlorophyll metabolism, the chlorophyll cycle, chlorophyll breakdown, photoprotection, regulation of leaf senescence, regulation of programmed cell death, and defense response to other organisms. It localizes to chloroplast membranes, thylakoids, and the apoplast. Associations include leaf yellowing tolerance, hybrid incompatibility, stem senescence, yield traits, net photosynthetic rate, chlorophyll content, disease tolerance, salt tolerance, and traits related to seed maturation, root morphology, and light intensity response. Related genes in other species link the family to chlorophyll catabolism, cell death, and stay-green phenotypes.