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Analysis of propionate‐degrading consortia from agricultural biogas plants

In order to investigate the propionate‐degrading community of agricultural biogas plants, four propionate‐degrading consortia (Ap1a, N12, G12, and Wp2a) were established from different biogas plants which were fed with renewable resources. The consortia were cultivated in a batch for a period of 2–4...

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Autores principales: Ahlert, Stephan, Zimmermann, Rita, Ebling, Johannes, König, Helmut
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5221444/
https://www.ncbi.nlm.nih.gov/pubmed/27364538
http://dx.doi.org/10.1002/mbo3.386
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author Ahlert, Stephan
Zimmermann, Rita
Ebling, Johannes
König, Helmut
author_facet Ahlert, Stephan
Zimmermann, Rita
Ebling, Johannes
König, Helmut
author_sort Ahlert, Stephan
collection PubMed
description In order to investigate the propionate‐degrading community of agricultural biogas plants, four propionate‐degrading consortia (Ap1a, N12, G12, and Wp2a) were established from different biogas plants which were fed with renewable resources. The consortia were cultivated in a batch for a period of 2–4 years and then analyzed in an 8‐week batch experiment for microbial succession during propionate degradation. Community shifts showed considerable propagation of Syntrophobacter sulfatireducens, Cryptanaerobacter sp./Pelotomaculum sp., and “Candidatus Cloacamonas sp.” in the course of decreasing propionate concentration. Methanogenic species belonged mainly to the genera Methanosarcina, Methanosaeta, and Methanoculleus. Due to the prevalent presence of the syntrophic acetate‐oxidizing species Tepidanaerobacter acetatoxydans and potentially autotrophic homoacetogenic bacteria (Moorella sp., Thermacetogenium sp.), a theoretical involvement of syntrophic acetate oxidation and autotrophic homoacetogenesis in stable and efficient propionate degradation was indicated. Considering theoretical Gibbs free energy values at different hydrogen partial pressures, it is noticeable that syntrophic acetate oxidation and autotrophic homoacetogenesis have the potential to counterbalance adverse hydrogen partial pressure fluctuations, stabilizing most probably continuous and stable propionate degradation.
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spelling pubmed-52214442017-01-11 Analysis of propionate‐degrading consortia from agricultural biogas plants Ahlert, Stephan Zimmermann, Rita Ebling, Johannes König, Helmut Microbiologyopen Original Research In order to investigate the propionate‐degrading community of agricultural biogas plants, four propionate‐degrading consortia (Ap1a, N12, G12, and Wp2a) were established from different biogas plants which were fed with renewable resources. The consortia were cultivated in a batch for a period of 2–4 years and then analyzed in an 8‐week batch experiment for microbial succession during propionate degradation. Community shifts showed considerable propagation of Syntrophobacter sulfatireducens, Cryptanaerobacter sp./Pelotomaculum sp., and “Candidatus Cloacamonas sp.” in the course of decreasing propionate concentration. Methanogenic species belonged mainly to the genera Methanosarcina, Methanosaeta, and Methanoculleus. Due to the prevalent presence of the syntrophic acetate‐oxidizing species Tepidanaerobacter acetatoxydans and potentially autotrophic homoacetogenic bacteria (Moorella sp., Thermacetogenium sp.), a theoretical involvement of syntrophic acetate oxidation and autotrophic homoacetogenesis in stable and efficient propionate degradation was indicated. Considering theoretical Gibbs free energy values at different hydrogen partial pressures, it is noticeable that syntrophic acetate oxidation and autotrophic homoacetogenesis have the potential to counterbalance adverse hydrogen partial pressure fluctuations, stabilizing most probably continuous and stable propionate degradation. John Wiley and Sons Inc. 2016-07-01 /pmc/articles/PMC5221444/ /pubmed/27364538 http://dx.doi.org/10.1002/mbo3.386 Text en © 2016 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Ahlert, Stephan
Zimmermann, Rita
Ebling, Johannes
König, Helmut
Analysis of propionate‐degrading consortia from agricultural biogas plants
title Analysis of propionate‐degrading consortia from agricultural biogas plants
title_full Analysis of propionate‐degrading consortia from agricultural biogas plants
title_fullStr Analysis of propionate‐degrading consortia from agricultural biogas plants
title_full_unstemmed Analysis of propionate‐degrading consortia from agricultural biogas plants
title_short Analysis of propionate‐degrading consortia from agricultural biogas plants
title_sort analysis of propionate‐degrading consortia from agricultural biogas plants
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5221444/
https://www.ncbi.nlm.nih.gov/pubmed/27364538
http://dx.doi.org/10.1002/mbo3.386
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