Bacillus germination

The various phases of germination of spores of Bacillus ramosus (Fraenkel), as actually observed in hanging drops under very high powers. A. The spore sown at 11am, as shown at "a" had swollen (b) perceptibly by noon, and had germinated by 3:30pm, as shown at "c": in "d" at 6pm, and at "e" at 8:30pm: the resulting filament is segmenting into bacilli as it elongates, and at midnight (f) consisted of twelve such segments. B, C. Similar series of phases in the order of the small letters in each case, and with the times of observation attached. At "f" and "g" occurs the breaing up of the filament into rodlets. D. Germinating spores in various stages, more highly magnified, and showing the different ways of escape of the filament from the spore-membrane. (H. M. W.)
Source: 1911 EB, Vol. 3, Page 159

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