Manipulating the phytic acid content of rice grain toward improving micronutrient bioavailability

摘要: Myo-inositol hexaphosphate, also known as phytic acid (PA), is the most abundant storage form of phosphorus in seeds. PA acts a strong chelator metal cations to phytate and considered an anti-nutrient it reduces bioavailability important micronutrients. Although major nutrient source for more than one-half global population, rice poor essential Therefore, biofortification reducing content have arisen new strategies increasing micronutrient rice. Furthermore, climate change effects, particularly rising atmospheric carbon dioxide concentration, are expected increase reduce concentrations micronutrients grain. Several genes involved biosynthesis been identified characterized Proper understanding related accumulation during seed development creating means suppress expression these should provide foundation manipulating Low-PA mutants developed that significantly lower grain content, but had reduced yields agronomic performance, traits challenge their effective use breeding programs. Nevertheless, transgenic technology has developing low-PA without hampering plant growth or development. Moreover, distribution grain, enhancing levels endosperm possible mineral bioavailability. holistic approach successful lines. In this review, we focus on key determinants concentration discuss molecular methods approaches