植物响应低磷胁迫的功能基因组研究进展

Functional Genomics Approaches for the Study of Low Phosphate Responses in Higher Plants

磷对植物的生长发育起着重要的作用,但土壤有效磷含量不足已成为世界范围内制约作物产量和品质提高的重要因素。植物在遭受低磷胁迫时,体内会形成适应性机制,因此解析调控植物对低磷胁迫适应性的分子机制也成为科学领域的一大热点。从功能基因组的角度,包括磷胁迫诱导的差异基因表达谱、差异基因的功能类别、基因调控网络、非编码RNA以及植物激素参与的植物耐低磷调控机制等方面综述了近年来植物响应低磷胁迫的分子机制。

Phosphorus （ Pi ） plays an important role in higher plants on the growth and development, and Pi availability is frequently a limiting factor for crop quality and productivity due to the deficiency of soluble inorganic Pi in many soils worldwide. A number of morphological, physiological, biochemical and molecular responses have evolved in plants that allow them to grow and prosper in the presence of low levels of available. This review examine and compares several recent advanced studies related to the functional genomics aspects of plant responses to Pi stress, such as the gene expression profiles of phosphorus stress induced, the differences in gene function categories, the complex network of regulatory genes, the non coding RNAs and plant hormone involved in the regulation mechanism of plant tolerance to low phosphorus were also highlighted and assessed.