| Nuclear and cell division in Bacillus subtilis: cell development from spore germination. | |
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MedLine Citation:
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PMID: 816776 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The changes in the morphology of the nucleoids and the mesosomes in Bacillus subtilis cells during synchronous outgrowth after spore germination were followed in large-scale three-dimensional cell reconstructions. Shortly after outgrowth of the cell begins in Spizizen medium with glucose, the mesosome becomes an elongated structure in close contact with a rounded nucleoid. When nuclear replication reaches full activity, the mesosome develops into a single, complicated versatile system, with tubules that traverse the cytoplasm and have elaborations in and near the nucleoplasm. Later the system may retract to form large rounded mesosomes; the tubules and strings of vesicles within these mesosomes probably have been collected from the cytoplasm. Shortly after the first cell division, both sister cells have two nucleoids, but with longer generation times induced by growth in media containing acetate instead of glucose; these sister cells have only one nucleoid each. In acetate-grown cells rounded nucleoids that have no contact with a mesosome may represent nucleoids in a temporary stage of rest. On the other hand, the nucleoids of cells growing in glucose-containing medium are always penetrated by mesosomal material, superficially or deeply. Since the mesosome appears capable of traversing the nuclear fibrils, and even reaching the last strands connecting the dividing nucleoids, it is suggested that this organelle may play a vital role in the Bacillus division cycle. |
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Authors:
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W V Iterson; J A Aten |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of bacteriology Volume: 126 ISSN: 0021-9193 ISO Abbreviation: J. Bacteriol. Publication Date: 1976 Apr |
Date Detail:
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Created Date: 1976-07-06 Completed Date: 1976-07-06 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 2985120R Medline TA: J Bacteriol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 384-99 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acetates
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metabolism Bacillus subtilis / growth & development*, metabolism, ultrastructure Cell Division Cell Nucleus / ultrastructure Cell Wall / ultrastructure Glucose / metabolism Models, Biological Organoids / ultrastructure Spores, Bacterial / growth & development, metabolism, ultrastructure |
| Chemical | |
Reg. No./Substance:
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0/Acetates; 50-99-7/Glucose |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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