AO1 — Pisum sativum

Summary

PsAO1 (PSAT2G023560) on garden pea chromosome 2LG1 encodes a protein with aldehyde oxidase, abscisic aldehyde oxidase, aryl-aldehyde oxidase, xanthine dehydrogenase, and indole-3-acetaldehyde oxidase activities, binding molybdenum cofactor, FAD, and 2Fe-2S clusters. The gene is associated with abscisic acid and auxin biosynthesis, seed development, nitrogen fixation, glucosinolate metabolism, virus-induced post-transcriptional gene silencing, and responses to hydrogen peroxide, dehydration, and thirst. It is linked to leaf senescence, stomatal movement, seed germination and dormancy, pathogen resistance, salt and drought stress responses, chlorophyll degradation, and reactive oxygen species production. The product localises to plastids, cytosol, and nucleus. Studies of related genes in other species connect the family to water balance homeostasis, basal defence, protoxylem differentiation, and indolic defence compound biosynthesis.