PP1 — Triticum turgidum subsp. durum

Summary

TRITD4AV1G042200 (symbol PP1, also known as TtPP1) on durum wheat chromosome 4A encodes a protein serine/threonine phosphatase catalytic subunit belonging to the PP1 family, with protein phosphatase inhibitor activity and phosphatase activity (EC 3.1.3.16). The gene is associated with auxin export across the plasma membrane, regulation of epidermal cell division, trichome differentiation, root hair tip growth, leaf shaping and formation, cotyledon morphogenesis, gibberellic acid homeostasis, cellular responses to abscisic acid and chitin, red light signaling, and detection of peptidoglycan. It is linked to traits including leaf and vascular morphology, adventitious root number, shoot system elongation, whole plant size, bacterial blight disease resistance, seed set percent, temperature stress response, phototropism, male sterility, aluminum response, and gibberellic acid sensitivity. The protein localizes to the protein phosphatase type 1 complex, basal and apical plasma membrane, ER body, vacuole, nucleolus, plant-type cell wall, and plasmodesmata.