. The cytology and life-history of bacteria. Bacteria. SEXUALITY IN BACTERIA II5 H: SEXUAL FUSION IN PROTEUS AND STREPTOBACILLUS (13) It has been stated that Strcptobacilltis moniliformis is capable of reproduction by the formation of spore-hkc bodies arising from swollen sporangia upon the filaments of the bacteria. These bodies are clanned to be sexual in origin, forming in other bacteria, including Proteus, at the edges o^ swarms where these make contact with other, similar swarms. This interpretation will be discussed in Chapter ® (5 © Qi Formation and maturation of the resting stage
. The cytology and life-history of bacteria. Bacteria. SEXUALITY IN BACTERIA II5 H: SEXUAL FUSION IN PROTEUS AND STREPTOBACILLUS (13) It has been stated that Strcptobacilltis moniliformis is capable of reproduction by the formation of spore-hkc bodies arising from swollen sporangia upon the filaments of the bacteria. These bodies are clanned to be sexual in origin, forming in other bacteria, including Proteus, at the edges o^ swarms where these make contact with other, similar swarms. This interpretation will be discussed in Chapter ® (5 © Qi Formation and maturation of the resting stage in the anaerobic actinomycete Spherophorus, according to Prevot. The resemblance between this process and that described independently for Actinomyces bovis is most striking (compare Fig. 51). /.• SUMMARY A well-marked process ot autogamous or sexual fusion accompanies the the formation ot the resting nucleus in all groups ot bacteria. In sporing bacilli and streptomyces a longitudinal, rod-shaped fusion nucleus is formed, and from it haploid spores arise. In the case of the sporing bacilli the reduction process is very obvious, and precedes spore maturation. In myxobacteria and non-sporing eubactena the nucleus divides and reconjugates. The two gametes contain spherical, central nuclei, and fuse to form a microcyst containing a vesicular, resting nucleus. The vegetative bacterium is haploid and the reduction process precedes the maturation of the microcyst. A similar process has been recorded in the anaerobic actino- myces, and a reduction division occurs during Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bisset, Kenneth Alexander. Baltimore : Williams and Wilkens
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbacteria
