抄録
The causal bacterium of rice grain rot entered to the lemmata and paleae through the stomata, and multiplied in the intercellular spaces of the parenchyma. Stomata are mainly opened on the inner surfaces of lemmata and paleae, a few on outer surfaces of lemmata and they are connected each others through the intercellular space of parenchyma. The bacteria multiplied on the surface of albumen and embryo, but never invaded them.
