PECS-2.1 — Cucumis melo

Summary

MELO3C005292.2 (symbol PECS-2.1) on melon chromosome 10 encodes a pectinesterase with pectinesterase inhibitor activity, as indicated by its enzyme classification (EC 3.1.1.11) and molecular function annotations. The gene is associated with pectin breakdown, cell wall modification, fruit ripening, and ethylene anabolism, as well as responses to bacteria, fungi, nematodes, and zinc. It has been linked to fruit firmness, sucrose content, germination rate, photosynthetic rate, root development traits, and adventitious root formation. The encoded protein localizes to the apoplast, plant-type cell wall, cytosol, and stress granules. Studies of related genes in other species connect the pectinesterase family to pectin methylesterification, susceptibility to fungal infection and nematodes, stomatal function, and cell wall development.