根瘤菌-豆科植物共生结瘤因子的感知与信号转导途径研究进展

Legume plants are able to form symbiosis with nitrogen-fixing soil bacteria, collectively called rhizobia. With the induction of flavonoids secreted by roots, rhizobia synthesize and secrete the lipochitooligosaccharides (Nod factors). Legume plants recognize Nod factor and via signal transduction pathways, eliciting a series of physiological and biochemical responses and forming a new organ, called root nodule. This mutualistic association requires mutual recognition, mutual coordination and related genes expression of symbiotic partners. And with environmental conditions and physiological responses within cells changed, this process is able to self regulation. In this review, we will give a brief summary on nodule formation, perception and transduction of NF signaling, expression and regulation of related genes as well as practical application of legume-rhizobial symbiosis. We will also attempt to discuss further development in this field.