Mutual interactions of Pleurotus ostreatus with bacteria of activated sludge in solid-bed bioreactors
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu časopisecké články
PubMed
27116960
DOI
10.1007/s11274-016-2050-3
PII: 10.1007/s11274-016-2050-3
Knihovny.cz E-zdroje
- Klíčová slova
- Activated sludge, Batch reactor, Biodecolorization, Community structure, Pleurotus ostreatus, Uridylate kinase,
- MeSH
- aktivace enzymů MeSH
- Bacteria klasifikace genetika růst a vývoj metabolismus MeSH
- bioreaktory mikrobiologie MeSH
- DNA bakterií analýza MeSH
- down regulace MeSH
- fenotyp MeSH
- fungální proteiny analýza MeSH
- genotyp MeSH
- koenzym A-ligasy metabolismus MeSH
- lakasa metabolismus MeSH
- mikrobiální interakce MeSH
- mikrobiální viabilita MeSH
- odpadní voda mikrobiologie MeSH
- odpadní vody mikrobiologie MeSH
- Pleurotus enzymologie metabolismus fyziologie MeSH
- Rhodococcus enzymologie růst a vývoj metabolismus MeSH
- ribozomální DNA analýza MeSH
- RNA ribozomální 16S genetika MeSH
- techniky vsádkové kultivace MeSH
- uhlík metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- acetate-CoA ligase (ADP-forming) MeSH Prohlížeč
- DNA bakterií MeSH
- fungální proteiny MeSH
- koenzym A-ligasy MeSH
- lakasa MeSH
- odpadní voda MeSH
- odpadní vody MeSH
- ribozomální DNA MeSH
- RNA ribozomální 16S MeSH
- uhlík MeSH
White rot fungi are well known for their ability to degrade xenobiotics in pure cultures but few studies focus on their performance under bacterial stress in real wastewaters. This study investigated mutual interactions in co-cultures of Pleurotus ostreatus and activated sludge microbes in batch reactors and different culture media. Under the bacterial stress an increase in the dye decolorization efficiency (95 vs. 77.1 %) and a 2-fold elevated laccase activity (156.7 vs. 78.4 Ul(-1)) were observed in fungal-bacterial cultures compared to pure P. ostreatus despite a limited growth of bacteria in mixed cultures. According to 16S-rDNA analyses, P. ostreatus was able to alter the structure of bacterial communities. In malt extract-glucose medium the fungus inhibited growth of planktonic bacteria and prevented shifts in bacterial utilization of potential C-sources. A model bacterium, Rhodococcus erythropolis responded to fungal metabolites by down regulation of uridylate kinase and acetyl-CoA synthetase.
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