ALDH — Pisum sativum

Summary

PSAT7G240320, designated PsALDH4, encodes an aldehyde dehydrogenase family protein on garden pea chromosome 7LG7. The enzyme exhibits multiple NAD+-dependent aldehyde dehydrogenase activities, including lactaldehyde, succinate-semialdehyde, acetaldehyde, and phenylacetaldehyde dehydrogenase activities. PsALDH4 is associated with GABA catabolism, carnitine anabolism, green leaf volatile biosynthesis, cellular detoxification of aldehydes, and responses to desiccation, abscisic acid, salinity, and circadian rhythm. The protein localises to mitochondria, plastids, amyloplasts, the ER, Golgi, plasmodesmata, cytosol, and plant-type vacuoles. Phenotype associations link PsALDH4 to drought tolerance, salt tolerance, dehydration stress response, and general abiotic stress response. Studies of related genes in other species connect the family to seed dormancy, root length, and salt tolerance traits.