CHS — Oryza sativa Japonica

Summary

OsCHS (OS10G0168500) on rice chromosome 10 encodes a type III polyketide synthase with chalcone/stilbene synthase domains, exhibiting naringenin-chalcone synthase, biphenyl synthase, and bisdemethoxycurcumin synthase activities, as well as acyltransferase and protein homodimerization activity. The gene is associated with flavonoid, anthocyanin, lignin, serotonin, polyketide, and sporopollenin biosynthesis, along with pollen exine formation, anther development, pigmentation, double fertilization, detoxification, and triterpenoid metabolism. It has been linked to traits including flavonoid, anthocyanin, lignin, starch, monosaccharide, and chlorophyll content, as well as leaf color, grain weight, root length, germination rate, heat tolerance, and turgor pressure. Studies of related genes in other species connect the family to EC 2.3.1.74 and EC 2.3.1.211 activities.