Fig. 2.

Impact of root microbiota on RSA in rice. Rhizospheric microbes can modulate root growth and development via the production of secondary metabolites and phytohormones. Microbes can influence plant nutrition by phosphorus solubilization, nitrogen fixation and siderophore production, and alter gene transcription and metabolite biosynthesis in plant cells that affect root physiology. CK, cytokinin; ET, ethylene; GA, gibberellic acid; IAA, indole acetic acid; NF, nitrogen fixation; PS, phosphate solubilization; SP, siderophore production