STM — Cucumis sativus

Summary

CsSTM (CSA_2G145880) on cucumber chromosome 2 encodes a serine hydroxymethyltransferase (EC 2.1.2.1) with glycine hydroxymethyltransferase activity, a pyridoxal phosphate-dependent enzyme. It is associated with one-carbon metabolism, glycine and serine metabolism, tetrahydrofolate interconversion, and photorespiration. The gene is linked to carpel formation, floral whorl morphogenesis, sex determination, internode patterning, and maintenance of inflorescence meristem identity. Traits connected to CsSTM include plant height, leaf shape, chlorophyll content, photosynthetic rate, flowering time, fruit growth and development, peduncle length, phyllotaxy, and disease tolerance. It has also been associated with responses to oxidative stress, salt, drought, cadmium, and high light, as well as stomatal closure and root meristem development. Related genes in other species link the family to photorespiratory chlorosis, basal defense, and salt tolerance.