Structural and Geomicrobiological Characteristics of a Microbial Community from a Cold Sulfide Spring
| Autor: | S. Douglas, D. D. Douglas |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
chemistry.chemical_classification
geography geography.geographical_feature_category biology Sulfide Mineralogy chemistry.chemical_element biology.organism_classification Microbiology Sulfur chemistry Elemental analysis Purple sulfur bacteria Green sulfur bacteria Spring (hydrology) Earth and Planetary Sciences (miscellaneous) Environmental Chemistry Microbial mat Environmental scanning electron microscope General Environmental Science |
| Zdroj: | Geomicrobiology Journal. 18:401-422 |
| ISSN: | 1521-0529 0149-0451 |
| DOI: | 10.1080/014904501753210567 |
| Popis: | The Ancaster sulfur spring is a cold (9°C) sulfur spring located near Ancaster, Ontario, Canada, which hosts an abundant and diverse microbial mat community. We conducted an extensive microscopical study of the microbial community of this spring using a number of techniques: phase light, confocal scanning laser microscopy, conventional scanning electron microscopy using both chemical/critical point drying and cryofixation preparative techniques, environmental scanning electron microscopy, and transmission electron microscopy. The latter two techniques were coupled with energy dispersive X-ray spectrometry for elemental analysis to complement wet geochemical data collected on bulk spring water and mat pore water. In the anoxic source of the spring, green and purple sulfur bacteria were found together with a sulfide-utilizing type of cyanobacteria that had the unusual characteristic of storing colloidal sulfur intracellularly. Deeper within the source, the mats were dominated by green sulfur bacteria and th... |
| Databáze: | OpenAIRE |
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