BAM1 — Solanum tuberosum

Summary

PGSC0003DMG400001549 (StBAM1) on potato chromosome 9 encodes a beta-amylase (EC 3.2.1.2) with a Glyco_hydro_14 domain, and also exhibits DNA-binding transcription factor activity and identical protein binding. The gene is associated with starch and maltose metabolism, including starch anabolism and breakdown, maltose anabolism, and polysaccharide breakdown, as well as sucrose metabolism and breakdown. StBAM1 is linked to response to cold, herbivore, thirst, and ABA signaling, and localizes to the chloroplast stroma, cytosol, nucleus, ER, and secretory vesicles. Associations include traits such as reducing sugar content, photosynthetic rate, respiration rate, and sucrose content, and phenotypes including leaf starch degradation, plant growth, heat stress tolerance, disease resistance, male fertility, and root and shoot meristem development. Studies of related genes in other species link the family to starch degradation, shoot apical meristem maintenance, and cold tolerance.