PAL2 — Brassica oleracea var. botrytis

Summary

BoPAL2, located on chromosome 4 of cauliflower (Brassica oleracea var. botrytis), encodes a phenylalanine ammonia-lyase (PAL) with ammonia-lyase and phenylalanine ammonia-lyase activity, and also possesses DNA-binding transcription factor activity and protein dimerization activity. The gene is associated with L-phenylalanine breakdown, cinnamic acid and phenylpropanoid anabolism, and regulation of phenylpropanoid metabolism. It is linked to responses to wounding, oxidative stress, and low humidity, as well as guard cell fate commitment, guard mother cell differentiation, and upregulation of cell differentiation and transcription. Associations with drought tolerance, salt stress tolerance, pathogen resistance, UV-B tolerance, and flavonoid biosynthesis have been observed. The encoded protein localises to the cytosol, cytoplasm, nucleus, and macromolecular complexes. Studies of related genes in other species link the family to rutin and chlorogenic acid accumulation, styrene biosynthesis, and stomatal development.