at Google ScholarTitle data
Zeibich, Lydia ; Schmidt, Oliver ; Drake, Harold L.:
Fermenters in the Earthworm Gut : Do Transients matter?
In: FEMS Microbiology Ecology.
Vol. 95
(2018)
Issue 2
.
- No. fiy221.
ISSN 1574-6941
DOI: https://doi.org/10.1093/femsec/fiy221
Abstract in another language
Earthworms have profound impact on soil-based ecosystems. Although theoretical considerations suggest that most microbes in the earthworm gut are likely ingested and transient, the non-responsiveness of soil microbes to a specific high value gut nutrient and anoxia has made it difficult to demonstrate that responsive gut fermenters are derived from soil. Therefore, soil and gut content of the model earthworm Lumbricus terrestris were examined for their fermentative capabilities. In unsupplemented anoxic microcosms, fermentation was negligible with soil but rapid with gut content. However, both soil and gut content facilitated robust fermentations when challenged with complex nutrients indicative of those released from gizzard-disrupted cells. Based on the relative abundances of 16S rRNA and 16S rRNA gene sequences, the responsive fermentative taxa in unsupplemented gut content treatments were negligible in unsupplemented soil treatments. In contrast, the responsive fermentative taxa in soil and gut content treatments supplemented with complex nutrients displayed marked similarities, with numerous Proteobacteria- and Firmicutes-affiliated phylotypes being dominant. These findings indicated that detectable differences between the fermentative taxa in soil and gut contents are due in part to the nutrient-dependent metabolic status of community members and reinforce the likelihood that ingested transient microbes contribute to fermentation in the alimentary canal.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | BAYCEER148584 |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Ecological Microbiology Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors > Chair Ecological Microbiology - Univ.-Prof. Harold L. Drake, Ph.D. Research Institutions Research Institutions > Research Centres Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science |
| Date Deposited: | 08 Apr 2019 06:39 |
| Last Modified: | 08 Apr 2019 06:39 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/48289 |