Cytology of Spore Germination in Clostridium pectinovorum
| Autor: | Judith F. M. Hoeniger, C. L. Headley |
|---|---|
| Rok vydání: | 1968 |
| Předmět: |
Clostridium
Spores Microscopy Nucleoplasm Sporangium fungi Taxonomy Ecology Morphology and Structure and Microbiological Methods Biology Protoplast Microbiology Spore Microscopy Electron Mesosome Germination Botany Biophysics Spore germination Microscopy Phase-Contrast Molecular Biology Aperture (botany) |
| Zdroj: | Journal of Bacteriology. 96:1835-1847 |
| ISSN: | 1098-5530 0021-9193 |
| DOI: | 10.1128/jb.96.5.1835-1847.1968 |
| Popis: | The process of spore germination in Clostridium pectinovorum has been followed by phase-contrast and electron microscopy. Unlike most other Bacillaceae , germination of this species takes place within the sporangium. Under phase-contrast, the spore darkens and swells slightly, and then the vegetative rod slips out through the end opposite the collar-like extension of the sporangium. In thin sections, a spore from an early stage in germination consists of a central protoplast, core membrane, germ cell wall, cortex, and two coats. Within a short period, the cortex disintegrates and the young cell develops. It possesses a large fibrillar nucleoplasm and several mesosomes. Subsequently, the young cell elongates, becomes somewhat deformed, and then emerges through a narrow aperture in the inflexible coats of the spore, finally rupturing the sporangium. Free vegetative cells of C. pectinovorum resemble in their structure other gram-positive rods. |
| Databáze: | OpenAIRE |
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