Archive image from page 95 of The cytology and life-history of. The cytology and life-history of bacteria cytologylifehist00biss Year: 1955 8o THE CYTOLOGY AND LIFE-HISTORY OF BACTERIA form of an, apparently, disorganised mass oi granular material from which the rod-like nucleus is reformed. These granules may be identical with those which, in some cases, can be discerned in the completed rod. (Reproduced from the Journal of Ihiuiu- and Journal of Gciural Microbiology.) Fig. 37 TYPES OF ROD-LIKE NUCLEUS Top Left—Early stages in the maturation of the resting nucleus in Bact. coli. Bottom Le
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Archive image from page 95 of The cytology and life-history of. The cytology and life-history of bacteria cytologylifehist00biss Year: 1955 8o THE CYTOLOGY AND LIFE-HISTORY OF BACTERIA form of an, apparently, disorganised mass oi granular material from which the rod-like nucleus is reformed. These granules may be identical with those which, in some cases, can be discerned in the completed rod. (Reproduced from the Journal of Ihiuiu- and Journal of Gciural Microbiology.) Fig. 37 TYPES OF ROD-LIKE NUCLEUS Top Left—Early stages in the maturation of the resting nucleus in Bact. coli. Bottom Left—Similar stages in Bact. cerogenes (the dark surface material is capsular) Right—Rod-forms enclosed in the developing spore of CI. tetani. Acid-Giemsa x 3000. The rod-like nucleus in streptomyccs and spore-bearing bacilli is apparently a fusion nucleus and can result from a process o'i sexual conjugation (Chapter VI). In non-sporing genera, while the nucleus is in this condition, the length of the individual bacteria is often very variable, and they range from short, almost coccal cells, to filaments of considerable length. Cell-division appears to lack the regularity of other nuclear phases.