File:Bacteriology 2.png

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English: Illustration from 1911 Encyclopædia Britannica, article BACTERIOLOGY.

Fig. 2.—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 11 A.M., as shown at a, had swollen (b) perceptibly by noon, and had germinated by 3.30 P.M., as shown at c: in d at 6 P.M., and e at 8.30 P.M.; 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 breaking 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.)
Date
Source Encyclopædia Britannica, 1911
Author Project Gutenberg Distributed Proofreaders

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current22:09, 17 November 2008Thumbnail for version as of 22:09, 17 November 2008990 × 928 (20 KB)Keith Edkins== Summary == {{Information |Description={{en|1=Illustration from 1911 Encyclopædia Britannica, article BACTERIOLOGY. Fig. 2.—The various phases of germination of spores of Bacillus ramosus (Fraenkel), as actually observed in hanging drops under very