CHIA — Cucumis sativus

Summary

CsCHIA (CSA_5G139760) on cucumber chromosome 5 encodes a chitinase with lysozyme and beta-glucosidase activities, belonging to the glycosyl hydrolase 18 family. The enzyme binds calcium ions and is associated with chitin and polysaccharide breakdown, amino sugar and polyamine metabolism, TOR signaling, and response to light intensity. It localizes to the vacuole, amyloplast, and extracellular space. The gene is linked to carotene content, plant height, stem diameter, and salt tolerance (SALTTL), as well as bacterial disease resistance. Related genes in other species connect the family to bacterial blight and Fusarium root rot resistance, sugar and sucrose content, and abiotic stress tolerance including salt and heat stress responses.