Dynamic Changes in Bacterial Communities During Compost and Earthworm Treatment of Low-Grade Potassium Ore
| Autor: | Dian-Feng Liu, Bin Lian, Bin Wang |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
biology
Compost Firmicutes Potassium fungi Earthworm chemistry.chemical_element engineering.material biology.organism_classification complex mixtures Microbiology chemistry Earth and Planetary Sciences (miscellaneous) engineering Environmental Chemistry Fermentation Food science Alteromonas Bacteria Temperature gradient gel electrophoresis General Environmental Science |
| Zdroj: | Geomicrobiology Journal. 30:653-661 |
| ISSN: | 1521-0529 0149-0451 |
| DOI: | 10.1080/01490451.2012.757999 |
| Popis: | Both composting and earthworm treatment can degrade potassium rock powders and bacteria play a key role during the bio-processings. To understand the dominant bacteria and bacterial profile in biological conversion of the ore including compost and earthworm treatment, the bacterial communities in the compost were studied by using the method of denaturing gradient gel electrophoresis (DGGE) after ore powder was co-composted with organic wastes and then treated with earthworms. Results showed bacterial community structure changed very quickly during the early stages of solid-state fermentation, but relatively stable in the later stages of fermentation and during earthworm treatment. The dominant species of bacteria largely varied in the earlier stage of composting, but they were stable in the latter stage and during earthworm treatment. Two classes of bacteria, represented by band 12 (likely Alteromonas) and band 14 (likely Firmicutes) in DGGE profile, were found to be dominant species over the entire solid... |
| Databáze: | OpenAIRE |
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