PAL — Cucumis sativus

Summary

CsPAL (CSA_6G445770) on cucumber chromosome 6 encodes a phenylalanine ammonia-lyase (EC 4.3.1.24) with phenylalanine ammonia-lyase activity, protein dimerization activity, and DNA-binding transcription factor activity. It belongs to the Phe_NH3-lyase and aromatic lyase families. This gene is associated with phenylpropanoid and salicylate biosynthesis, suberin biosynthesis, and lignin breakdown. It has been linked to disease resistance, virus resistance, wound response, anthocyanin accumulation, chilling tolerance, salt stress tolerance, freezing tolerance, UV-B tolerance, and responses to abiotic stresses including drought recovery and low humidity. Associations also include regulation of phenylpropanoid metabolism, negative regulation of cytokinin signalling, guard cell fate commitment, and induced systemic resistance. The protein localises to the cytosol, cytoplasm, nucleus, and SCF complex. Studies of related genes in other species connect the family to fruit shelf life, heat tolerance, drought tolerance, herbivore defence, and floral scent production.