Abstract
The lipid granule can not be found in the young cells. There are small lipid granules in the cells of the logarithmic phase, but large lipid granules in the cells of the stationary phase. The large lipid granule begins to change into spore from its center. This observation has been made by the methods of Heidenhain's hematoxylin staining and Möller's spore staining.
From these results, the author supposes that the lipid granule has some relation to the spore formation.
