GST — Phaseolus vulgaris

Summary

PvGST (PHAVU_007G161900) on chromosome 7 of French bean encodes a glutathione S-transferase of the GSTL1/2/3 family, confirmed by glutathione transferase activity annotation. The gene is associated with glutathione metabolism, protein glutathionylation, detoxification, and response to insect challenge. It is linked to chlorophyll fluorescence, auxin signaling, and structural organization, with the product localizing to the cytosol, cytoplasm, and plasmalemma. Studies of related genes in other species connect the GST family to drought tolerance, seed size, anthocyanin content, leaf chlorosis, and stomatal resistance, though these associations are not yet established in Phaseolus vulgaris.