Research advances on response characteristics of plants to different forms of phosphorus

Phosphorus (P) is one of the essential macronutrients that participates in many important compound synthesis and metabolism of plants. P exists in many forms in soil and gives different phytoavailability. Plants have developed specific mechanisms to adapt the dominant P sources in soil. It has been proved that the efficient P uptake and accumulation of plants are closely related with root morphology, rhizosphere secretion and phosphate transporter. Comprehending P accumulation characteristics of plants is important for breeding high P efficient crops or P-accumulators, excavating the ability of high P efficiency crops in the utilization of the potential P sources, and the key of using plants to extract excess P from P-enriched environments. According to the research achievements at home and abroad, this paper summarized the characteristics of P uptake, root morphology, root activities of phosphatase and phytase of plants when grown in different forms of P, and reviewed the progress in the research of molecular mechanism of high P efficiency. Meanwhile, the future researches in this field were forecasted.