Ms. Oe (D1), Mr. Ishikawa (M2), and Mr. Endo (M2) gave a presentation on methanotrophic bacteria isolated from rice roots, iron-oxidizing bacterium from rice roots, and methanotrophic bacteria from a tree trunk, respectively, at the annual meeting of Japanese Society of Microbial Ecology and Asian Symposium on Microbial Ecology held in Hamamatsu on November 28-30.