IPP — Solanum tuberosum

Summary

PGSC0003DMG400004999, designated IPP and also known as PPA, encodes a pyrophosphatase family protein with inorganic diphosphatase activity (EC 3.6.1.1) that binds magnesium and localises to the nucleus, cytosol and mitochondria. In potato, this gene is associated with pyrophosphate, phosphate and starch metabolism, including regulation of starch biosynthesis and breakdown, as well as sucrose breakdown, malate secretion, cell wall pectin metabolism, ascorbate biosynthesis, folate metabolism and vitamin A anabolism. It is linked to starch digestibility, amylose, glucose and chlorophyll content, disease tolerance and insect damage response. Associations also include root hair development, cell wall integrity and pyrophosphate homeostasis. Studies of related genes in other species link the family to callose deposition, resistance to bacterial pathogens and indolic glucosinolate biosynthesis.