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As the Worm Turns: The Earthworm Gut as a Transient Habitat for Soil Microbial Biomes
Abstract
The gut of the earthworm constitutes a mobile anoxic microzone to which the microorganisms of aerated soils are subjected. During gut passage, the in situ factors of the earthworm gut, which include anoxia and high concentrations of organic substrates, appear to greatly stimulate a subset of ingested soil microorganisms, including denitrifying and fermentative bacteria. The selective stimulation of ingested soil microbes by the unique microconditions of the earthworm gut (a) results in the in vivo emission of denitrification-derived dinitrogen (N 2) and the greenhouse gas nitrous oxide (N 2 O) by the earthworm, and (b) might affect the fitness, culturability, and diversity of certain members of soil microbial biomes. These observations illustrate the impact that soil macrofauna might have on terrestrial nitrogen cycle processes via their transient hosting of ingested prokaryotes.
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Cited by
Wang, H.-T., Ding, J., Xiong, C., Zhu, D., Li, G., Jia, X.-Y., Zhu, Y.-G., & Xue, X.-M. (2019) · Environmental Pollution · doi:10.1016/j.envpol.2019.04.054 · Cited by 266
Tire wear particles: An emerging threat to soil health
Ding, J., Lv, M., Zhu, D., Leifheit, E. F., Chen, Q.-L., Wang, Y.-Q., Chen, L.-X., Rillig, M. C., & Zhu, Y.-G. (2023) · Critical Reviews in Environmental Science and Technology · doi:10.1080/10643389.2022.2047581 · Cited by 167
Metadata
- Authors
- Drake, H. L., & Horn, M. A.
- Venue
- Annual Review of Microbiology
- Publisher
- Annual Reviews
- Published
- 2007-10-01
- Volume
- 61
- Issue
- 1
- Pages
- 169-189
- ISSN
- 0066-4227 (ISSN-L)
- 1545-3251
- OpenAlex
- W2156814453
- Cited by
- 465
- References
- 0
- FWCI
- 10.98
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: As the Worm Turns: The Earthworm Gut as a Transient Habitat for Soil Microbial Biomes. https://app.cochat.ai/papers/10.1146/annurev.micro.61.080706.093139
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- Drake, H. L., & Horn, M. A. (2007). As the Worm Turns: The Earthworm Gut as a Transient Habitat for Soil Microbial Biomes. Annual Review of Microbiology. https://doi.org/10.1146/annurev.micro.61.080706.093139
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