Apyrases are a kind of nucleoside triphosphate diphosphohydrolases that catalyze the removal of the terminal phosphategroup from nucleoside triphosphate (NTP) or nucleoside diphosphate (NDP). They also function either...Apyrases are a kind of nucleoside triphosphate diphosphohydrolases that catalyze the removal of the terminal phosphategroup from nucleoside triphosphate (NTP) or nucleoside diphosphate (NDP). They also function either intracellularlyor extracellularly in mediating the NTP/NDP homeostasis critical for plant growth, development, senescence,stress response and adaptation. Initial studies elucidated the biochemistry, structure and function of plant apyrases,while the recent progresses include the crystallography, newly discovered interaction partners and downstream targetsfor diverse apyrases. Furthermore, these apyrases play diverse roles in horticultural crops with the new recognitionof extracellular ATP (eATP) receptors. This review summarized the types, structures, biochemical and physiologicalfunctions of plant apyrases and highlighted their roles in plant growth, development, biotic/abiotic stress responsesand adaptation. The physiological activities among the apyrases, eATP with its receptor and eATP/iATP homeostasis,were reviewed. In particular, the quality formation / deterioration of postharvest horticultural crops caused by apyraseswas emphasized. This paper reviewed the recent advances in the multiple roles of apyrases in horticulturalcrops and provided insights into the regulation of physiological activities by the enzyme from molecular networkperspectives.展开更多
基金supported by the National Natural Science Foundation of China(Grant nos.32072640 and 32202566).
文摘Apyrases are a kind of nucleoside triphosphate diphosphohydrolases that catalyze the removal of the terminal phosphategroup from nucleoside triphosphate (NTP) or nucleoside diphosphate (NDP). They also function either intracellularlyor extracellularly in mediating the NTP/NDP homeostasis critical for plant growth, development, senescence,stress response and adaptation. Initial studies elucidated the biochemistry, structure and function of plant apyrases,while the recent progresses include the crystallography, newly discovered interaction partners and downstream targetsfor diverse apyrases. Furthermore, these apyrases play diverse roles in horticultural crops with the new recognitionof extracellular ATP (eATP) receptors. This review summarized the types, structures, biochemical and physiologicalfunctions of plant apyrases and highlighted their roles in plant growth, development, biotic/abiotic stress responsesand adaptation. The physiological activities among the apyrases, eATP with its receptor and eATP/iATP homeostasis,were reviewed. In particular, the quality formation / deterioration of postharvest horticultural crops caused by apyraseswas emphasized. This paper reviewed the recent advances in the multiple roles of apyrases in horticulturalcrops and provided insights into the regulation of physiological activities by the enzyme from molecular networkperspectives.
