sn-glycerol-3-phosphate 2-alpha-galactosyltransferase; floridoside-phosphate synthase; UDP-galactose:sn-glycerol-3-phosphate-2-D-galactosyl transferase; FPS; UDP-galactose,sn-3-glycerol phosphate:1->2' galactosyltransferase; floridoside phosphate sy • • •