MSD1 — Phaseolus vulgaris

Summary

PHAVU_009G141600 (PvMSD1) on chromosome 9 of French bean encodes a manganese/iron superoxide dismutase, a family defined by Fe/Mn_Superoxide_Dismutase domains and annotated for manganese, copper and metal binding. The gene is associated with removal of superoxide radicals, response to oxidative stress, reactive oxygen species anabolism, defense response, response to abscisic acid, osmotic response, response to herbicide, response to xenobiotic stimulus, floral organ abscission, embryo development ending in seed dormancy, and cysteine homeostasis. It is linked to mitochondrial lumen, apoplast, vacuole, cytosol and mitochondrial localisation. Associations include photosynthetic rate, proline content, antioxidant defense, arsenic tolerance, oxidative stress tolerance, embryo sac development, root skotomorphogenesis, root architecture, floral organ abscission timing, and reactive oxygen species accumulation. Related genes in other species link the family to superoxide detoxification, root growth and mitochondrial redox homeostasis.