低植酸作物基因工程育种研究进展

Phytic acid acts as the major storage form of phosphorus in plant seeds and is poorly digested by monogastric animals. Phytic acid is effective cationic chelating agent, so it can combine some important metal ions and proteins; therefore, it reduces bioavailability of these nutrients. At present, breeding new variety of low phytic acid plant is an effective way to solve the problem of low phosphorus utilization. Focuses on the phytase gene type, expression in model plants and crops, artificial modification and other problems, this article summarizes and expects some application in the genetic engineering breeding research progress of low phytic acid crops.