抄録
This paper reports an electron microscopy of amyloplasts of rice plant and sweet potato. Amyloplast was a simple sac-like body, having a thin membrane at its sufface. Usually several strip-like pattern and occasionally a few vesicles are observed within the amyloplast. No developed lamella or septum structure was however observed. From this respect, amyloplast differs from chloroplast, plastid, or mitochondria. A compound grain of rice plant is consisted of several amyloplasts. Consequently, it may not be appropriate to consider that compound grain itself is a single amyloplast.
