MGD — Cucumis sativus

Summary

CsMGD (CSA_2G382780) on cucumber chromosome 2 encodes a monogalactosyldiacylglycerol (MGDG) synthase (EC 2.4.1.46), a glycosyltransferase with domains including Glycosyltransf_28_UgtP and Diacylglyc_glucosyltr_N. The enzyme is localized to chloroplast membranes and the plastid envelope. CsMGD is associated with thylakoid membrane organization, membrane biogenesis, chlorophyll anabolism, leaf development, and photosynthetic rate. It is also linked to chloroplast development, photosystem II function, photoprotection, and photosynthetic electron transport. The gene is associated with pollen development and tube growth, embryo development, cytokinin signaling, phosphate starvation response and tolerance, aluminum tolerance, and lipid remodeling under phosphate deficiency. Studies of related genes in other species further connect the gene family to chloroplast biogenesis, cell membrane stability, and plant growth under nutrient stress.