Fine structural analysis of Sorangium cellulosum
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"Two cell types are found in the Order Myxobacterales; the fine structure of the long, thin, flexuous rods found in the Genus Myxococcus has been well characterized. However, the fine structure of the proportionately short, blunt, rigid rods of the Genus Sorangium is relatively unknown. Therefore, a critical fine structure analysis of the Sorangium—type cell was appropriate. Isolates of Sorangium cellulosum, probably the best known representatives of this group, were selected. Three primary goals were established for the study reported in this thesis. The first was to compare the structure of S. cellulosum which is a Gram-negative bacterium, with other Gram-negative true bacteria in general and, specifically, with other myxobacteria. Second, the structure of the vegetativ e cells was to be compared with those of the cells found in the resis tant structures, the fruiting bodies, which myxobacteria form as part of their life cycle. The third primary goal was to elucidate the nature of certain phase-dense, moving inclusions which had been observed in these cells on many occasions. In addition, it was hoped that' such a study might shed light on some aspects of the numerous questions, such as slime production, movement, and morphogenesis, as yet unanswered about the myxobacteria in general, and S. cellulosum specifically."--Introduction.
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