Abstract

• This experiment was explored the effect of arbuscular mycorrhizal fungi (AMF) on perennial rice 23 growth allocation under phosphorus conditions. We carried out a pot experiment of inoculating Rhizaphagus irregularis (AM) fungus with perennial rice 23, and set up three different phosphorus (P) levels (40 µM, 80 µM and 160 µM KH2PO4). AM fungus inoculation had significant effect on perennial rice physiological and associated gene expression compared to the control group. Plants phosphate transporter (PT) genes (OsPT11 and OsPT13) were significantly up-regulated with AMF colonization under different P conditions. The inoculation with AMF showed improved plant height, plant biomass of perennial rice 23 (PR 23). In addition, phosphorus treatment also significantly increased the AMF colonization in roots of perennial rice. AMF plays a vital role in diverse functions such as soil health improvement, plant health improvement, and protection of plants against pathogen. Therefore, the molecular and functions understanding of AMF in perennial rice is very important to select an efficient species to reap the full beneficial effects from these fungi.