PAL2 — Brassica oleracea var. botrytis

Summary

BoPAL2, located on chromosome 6 of cauliflower (Brassica oleracea var. botrytis), encodes a phenylalanine ammonia-lyase, an enzyme with ammonia-lyase and protein dimerization activities that also possesses DNA-binding transcription factor activity. The gene is associated with L-phenylalanine breakdown, cinnamic acid and phenylpropanoid anabolism, and the 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 the upregulation of cell differentiation and transcription. BoPAL2 is associated with drought tolerance, salt stress tolerance, UV-B tolerance, pathogen resistance, and defense responses. The protein localizes to the cytosol, cytoplasm, and nucleus. Studies of related genes in other species link the family to phenylpropanoid pathway activity, rutin and chlorogenic acid accumulation, and stomatal development.