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Dallinger, Anja ; Horn, Marcus A.:
Agricultural soil and drilosphere as reservoirs of new and unusual ssimilators of 2,4-Dichlorophenol Carbon.
In: Environmental Microbiology.
Bd. 16
(2014)
Heft 1
.
- S. 84-100.
ISSN 1462-2920
DOI: https://doi.org/10.1111/1462-2920.12209
Abstract
2,4-Dichlorophenol (2,4-DCP) is a potential soil and groundwater contaminant. Earthworms modulate growth and activities of soil microbiota. Thus, active 2,4-DCP degraders in agricultural soil and drilosphere (i.e., burrow walls, gut content, and cast) were identified by comparative amplicon pyrosequencing based 16S rRNA stable isotope probing (CAP-SIP) in soil columns. In situ relevant concentrations of [U-13C]2,4-DCP were consumed in soil within 19 and 41 days in the presence and absence of the endogeic earthworm Aporrectodea caliginosa, respectively. [U-14C]2,4-DCP mineralization was higher in cast, burrow wall, and soil from columns with than without earthworms. [U-14C]2,4-DCP mineralization was lowest in gut contents. Data indicated a strong impact of earthworms on the active microbial community. Novosphingobium, Comamonas, and Desulfitobacterium sp. assimilated 2,4-DCP-[13C] in the absence of earthworms. Pseudomonas, Flavobacterium, and Clostridium sp. assimilated 2,4-DCP-[13C] in the drilosphere. Novosphingobium and Variovorax related taxa dominated [U-13C]2,4-DCP consumers in soil slurries with drilosphere and bulk soil material. 16S rRNA sequences suggested species level novelty. The collective data demonstrates that new Bacteroidetes and Alpha-/Betaproteobacteria were involved in 2,4-DCP-C transformation, and indicated that diverse and hitherto unknown microbes associated with carbon flow from 2,4-DCP are shaped by earthworms.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER117588 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Ökologische Mikrobiologie Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 22 Jul 2015 05:41 |
| Letzte Änderung: | 21 Jul 2021 06:13 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/16957 |