. Pathogenic microörganisms; a practical manual for students, physicians, and health officers . Fig. 2.—Bacilli showing one polar Fig. 3.—Bacilli showing multiple flagellum. flagella. flagella are believed to be formed from the outer cell layer (ectoplasm)or possibly from the capsule, though they have been described bycertain authors as arising in endoplasmic granules. So far as we know,the flagella are the only means of locomotion possessed by the are not readily stained, as special staining agents are requiredfor this purpose (see p. 80). The envelope of the bacteria, whichusu
. Pathogenic microörganisms; a practical manual for students, physicians, and health officers . Fig. 2.—Bacilli showing one polar Fig. 3.—Bacilli showing multiple flagellum. flagella. flagella are believed to be formed from the outer cell layer (ectoplasm)or possibly from the capsule, though they have been described bycertain authors as arising in endoplasmic granules. So far as we know,the flagella are the only means of locomotion possessed by the are not readily stained, as special staining agents are requiredfor this purpose (see p. 80). The envelope of the bacteria, whichusually remains unstained with the ordinary dyes, then becomes coloredand more distinctly visible than is commonly the case. Occasionally,however, some portion of the envelope remains unstained, when theflagella present the appearance of being detached from the body ofthe bacteria by a narrow zone. In stained cultures of richly flagel-lated bacteria peculiar plaited masses sometimes are observed, con-sisting of flagella which have been detached and then matted may lose the
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