Interaction of cyanobacteria with volcanic ashes
| Autor: | G. A. Karpov, L. M. Gerasimenko, G. T. Ushatinskaya, V. K. Orleanskii |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
inorganic chemicals
Cyanobacteria geography geography.geographical_feature_category biology Chemistry technology industry and agriculture Microbial metabolism Weathering biology.organism_classification complex mixtures Applied Microbiology and Biotechnology Microbiology Mineralization (biology) Volcano Leaching (pedology) Botany Soil water Composition (visual arts) |
| Zdroj: | Microbiology. 82:111-118 |
| ISSN: | 1608-3237 0026-2617 |
| DOI: | 10.1134/s0026261712060069 |
| Popis: | Capacity for growth in water suspensions of volcanic ashes was shown for two oscillatorian cyanobacterial isolates from different environments. Growth dynamics depended on the physicochemical characteristics of the ashes and on pH of the medium. During cyanobacterial growth, some elements were leached, which either stimulated or inhibited growth. These solubilized elements could be adsorbed on the mucous sheaths, mineralizing the trichomes. The extracellular polysaccharides excreted by cyanobacteria facilitated adhesion between the ash particles and the changes in their composition. These results suggest an analogy between the processes in the modern volcanogenic areas and the biological weathering on volcanic soils during the early period of life on Earth. |
| Databáze: | OpenAIRE |
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