Difference between revisions of "PMID:4972256"
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| + | !align=left align='left' bgcolor='#CCCCFF' |Citation | ||
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| + | '''Kay, D and Warren, SC''' (1968) Sporulation in Bacillus subtilis. Morphological changes. ''Biochem. J.'' '''109''':819-24 | ||
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| + | !align=left align='left' bgcolor='#CCCCFF' |Abstract | ||
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| + | 1. When Bacillus subtilis was grown in a medium in which sporulation occurred well-defined morphological changes were seen in thin sections of the cells. 2. Over a period of 7.5hr. beginning 2hr. after the initiation of sporulation the following major stages were observed: axial nuclear-filament formation, spore-septum formation, release of the fore-spore within the cell, development of the cortex around the fore-spore, the laying down of the spore coat and the completion of the corrugated spore coat before release of the spore from the mother cell. 3. The appearance of refractile bodies and 2,6-dipicolinic acid and the development of heat-resistance began between 5 and 6.5hr. after initiation of sporulation. 4. The appearance of 2,6-dipicolinic acid and the onset of refractility appeared to coincide with a diminution of electron density in the spore core and cortex. 5. Heat-resistance was associated with the terminal stage, the completion of the spore coat. 6. The spore coat was composed of an inner and an outer layer, each of which consisted of three or four electron-dense laminae. 7. Serial sections through cells at an early stage of sporulation showed that the membranes of each spore septum were always continuous with the membranes of a mesosome, which was itself in close contact with the bacterial or spore nucleoid. 8. These changes were correlated with biochemical events occurring during sporulation. | ||
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| + | !align=left align='left' bgcolor='#CCCCFF' |Links | ||
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| + | [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=4972256 PubMed] [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1187033 PMC1187033] | ||
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| + | !align=left align='left' bgcolor='#CCCCFF' |Keywords | ||
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| + | Bacillus subtilis/cytology; Cell Membrane; Cell Nucleus; Cell Wall/growth & development; Cytoplasm; Electrons; Hot Temperature; Organoids; Picolinic Acids/biosynthesis; Spores/cytology; Spores/growth & development; Time Factors | ||
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| + | <!--box uid=d41d8cd98f00b204e9800998ecf8427e.6433.I55946d5c9f256--> | ||
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| + | ==Main Points of the Paper == | ||
| + | {{LitSignificance}} | ||
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| + | == Materials and Methods Used == | ||
| + | {{LitMaterials}} | ||
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| + | ==Phenotype Annotations== | ||
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| + | !|Phenotype of!!Taxon Information!!Genotype Information (if known)!!Condition Information!!OMP ID!!OMP Term Name!!ECO ID!!ECO Term Name!!Notes!!Status | ||
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| + | <!--box uid=d41d8cd98f00b204e9800998ecf8427e.6433.P55946d5ccaf79--></protect> | ||
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| + | ==Notes== | ||
| + | |||
| + | ==References== | ||
| + | {{RefHelp}} | ||
| + | <references/> | ||
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| + | [[Category:Publication]] | ||
Latest revision as of 17:44, 1 July 2015
| Citation |
Kay, D and Warren, SC (1968) Sporulation in Bacillus subtilis. Morphological changes. Biochem. J. 109:819-24 |
|---|---|
| Abstract |
1. When Bacillus subtilis was grown in a medium in which sporulation occurred well-defined morphological changes were seen in thin sections of the cells. 2. Over a period of 7.5hr. beginning 2hr. after the initiation of sporulation the following major stages were observed: axial nuclear-filament formation, spore-septum formation, release of the fore-spore within the cell, development of the cortex around the fore-spore, the laying down of the spore coat and the completion of the corrugated spore coat before release of the spore from the mother cell. 3. The appearance of refractile bodies and 2,6-dipicolinic acid and the development of heat-resistance began between 5 and 6.5hr. after initiation of sporulation. 4. The appearance of 2,6-dipicolinic acid and the onset of refractility appeared to coincide with a diminution of electron density in the spore core and cortex. 5. Heat-resistance was associated with the terminal stage, the completion of the spore coat. 6. The spore coat was composed of an inner and an outer layer, each of which consisted of three or four electron-dense laminae. 7. Serial sections through cells at an early stage of sporulation showed that the membranes of each spore septum were always continuous with the membranes of a mesosome, which was itself in close contact with the bacterial or spore nucleoid. 8. These changes were correlated with biochemical events occurring during sporulation. |
| Links | |
| Keywords |
Bacillus subtilis/cytology; Cell Membrane; Cell Nucleus; Cell Wall/growth & development; Cytoplasm; Electrons; Hot Temperature; Organoids; Picolinic Acids/biosynthesis; Spores/cytology; Spores/growth & development; Time Factors |
| edit table |
Main Points of the Paper
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Materials and Methods Used
Please list the materials and methods used in this paper (strains, plasmids, antibodies, etc).
Phenotype Annotations
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<protect>
| Phenotype of | Taxon Information | Genotype Information (if known) | Condition Information | OMP ID | OMP Term Name | ECO ID | ECO Term Name | Notes | Status |
|---|---|---|---|---|---|---|---|---|---|
| edit table |
</protect>
Notes
References
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