Distribution of anaerobic fungi in the digestive tract of cattle and their survival in faeces
Abstract
A most probable numbers procedure was used to enumerate populations of anaerobic fungi in the digesta and faeces of cattle. Anaerobic fungi were isolated from the rumen, omasum, abomasum, small intestine, caecum, large intestine and faeces. By determining the amount of digesta in each organ of the digestive tract, it was possible to estimate the total population of anaerobic fungi in cattle and make comparisons between populations in different organs. In addition to enumerating anaerobic fungi in freshly collected samples, they were quantified in digesta and faeces which had been dried at ambient temperature and stored in air for up to 9 months. These experiments showed that a higher proportion of the anaerobic fungi present in the hindgut and faeces were able to withstand desiccation than those present within the gastric and pre-gastric organs. Our results support the hypothesis that the life cycle of anaerobic fungi consists of three stages; the motile zoospore, the vegetative thallus and an aero-tolerant survival stage (cyst or resistant zoosporangium).
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The post-ruminal microbial community is composed predominantly of bacteria, but methanogenic archaea and anaerobic fungi have been described.
“The post-ruminal microbial community is composed predominantly of bacteria, but methanogenic archaea and anaerobic fungi have been described (Davies et al., 1993), although the later phylogentic group has not been targeted intensively with high-throughput sequencing techniques.”
From Addressing global ruminant agricultural challenges through understanding the rumen microbiome: past, present, and future (2018) · cites this paper as Davies et al., 1993
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Cites
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Huws, S. A., Creevey, C. J., Oyama, L. B., Mizrahi, I., Denman, S. E., Popova, M., Muñoz-Tamayo, R., Forano, E., Waters, S. M., Hess, M., et al. (2018) · Frontiers in Microbiology · doi:10.3389/fmicb.2018.02161 · Cited by 487 · see citing works
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Distribution and estimation of anaerobic zoosporic fungi along the digestive tracts of sheep
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- Authors
- Davies, D. R., Theodorou, M. K., Lawrence, M. I. G., & Trinci, A. P. J.
- Affiliations
- Aberystwyth University (GB)
- University of Manchester (GB)
- ORCID
- Theodorou, M. K.
- Venue
- Journal of General Microbiology
- Publisher
- Microbiology Society
- Published
- 1993-06-01
- Volume
- 139
- Issue
- 6
- Pages
- 1395-1400
- ISSN
- 0022-1287 (ISSN-L)
- OpenAlex
- W1976943954
- Cited by
- 117
- References
- 12
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 2 · 2023: 6 · 2022: 6 · 2021: 8 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 5 · 2016: 3 · 2015: 7 · 2014: 6 · 2013: 4 · 2012: 2
- FWCI
- 6.19
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of General Microbiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
- Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Keywords
- anaerobic fungi, rumen, feces, fungal survival, desiccation tolerance, fungal life cycle, zoospores, cysts, fungal enumeration, hindgut
- MeSH terms
- Anaerobiosis, Animals, Cattle, Digestive System, Feces, Female, Fungi, Hydrogen-Ion Concentration, Male, Organ Specificity, Colony Count, Microbial
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