抄録
Partial swellings of cell bodies of Mycobacterium lepraemurium cultivated in the NC-5 medium were observed with a scanning electron microscope. Shapes, sizes, locations, dividing and budding forms of the partial swellings were described. The partial swelling was regarded as the growing phase of a stage in the life history or life cycle of Mycobacterium lepraemurium. Similarity of the swelling to a bacterial spore was also noticed, however, further investigation is required for the determination of its microbial significance.
