BAM1 — Solanum tuberosum

Summary

StBAM1 (PGSC0003DMG400026199) on potato chromosome 7 encodes a beta-amylase (EC 3.2.1.2) with DNA-binding transcription factor activity and identical protein binding. It is associated with maltose anabolism, sucrose breakdown, polysaccharide breakdown, and responses to cold, herbivore, thirst, and ABA signaling. The gene is linked to regulation of shoot development, regeneration, and NO storage. Associations include photosynthetic rate, respiration rate, and sugar content, as well as leaf starch degradation, plant growth, heat stress tolerance, disease resistance, male fertility, and root and vascular development. Localization evidence connects StBAM1 to the chloroplast stroma, cytosol, nucleus, endoplasmic reticulum, and extracellular space. Studies of related genes in other species link the family to starch metabolism, shoot apical meristem maintenance, cold tolerance, and dehydration stress response.