REVIEW Open Access

Rice arbuscular mycorrhiza as a tool to study the molecular mechanisms of fungal symbiosis and a potential target to increase productivity Tomomi Nakagawa1,2 and Haruko Imaizumi-Anraku3* Rice (Oryza sativa L.) is a monocot model crop for cereal molecular biology. Following the emergence of molecular genetics of arbuscular mycorrhizal (AM) symbiosis in model legumes in the 1990s, studies on rice genetic resources have considerably contributed to our understanding of the molecular mechanisms and evolution of root intracellular symbioses. In this review, we trace the history of these studies and suggest the potential utility of AM symbiosis for improvement in rice productivity