Personal profile
Biography
Thomas Jeffries is a Senior Lecturer in Microbiology at the School of Science, Western Sydney University. He is a highly cited researcher in his field, with a total of 6,672 citations, 5,270 of which have been received since 2020. His h-index is 33, and his i10-index is 49, indicating a significant impact in his area of expertise.
Dr. Jeffries' research focuses on microbiology and bioinformatics, as evidenced by his academic position and research interests. He has published at least 49 papers that have been cited 10 or more times, demonstrating a consistent output of influential work. His research appears to be particularly relevant and current, given that a large portion of his citations have occurred in recent years.
Throughout his career, Dr. Jeffries has developed expertise in bioinformatics, applying computational methods to analyze and interpret biological data, particularly in the context of microbial communities. His work involves studies related to the human microbiome, marine biology, soil, environmental microbiology, and climate change impacts, with applications in water management and marine ecosystems.
Dr. Jeffries has recently secured two prestigious Australian Research Council (ARC) Discovery Grants, further solidifying his position as a leading researcher in his field. These grants typically support fundamental research and are highly competitive, indicating the significance and potential impact of Dr. Jeffries' proposed studies.
Thomas is the Secretary of the Australain Society for Microbiology, has been the director of JAMS.org.au, Is a Senior Editor of Letters in Applied Microbiology.
Research interests
The Microbiome
Bioinformatics
Genomics
Metagenomics
Microbial Ecology
Network analysis
Related links
Qualifications
Doctor of Philosophy, Flinders University
Bachelor of Science, Flinders University
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being -
SDG 6 Clean Water and Sanitation -
SDG 14 Life Below Water -
SDG 15 Life on Land
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Collaborations and top research areas from the last five years
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Patients with chronic low back pain without advanced disk degeneration exhibit gut microbiome dysbiosis: evidence from an age-, sex-, and BMI-matched pilot study
Sima, S., Jeffries, T., Sial, A., Sharma, S., Chopra, N., Zhang, F., Hold, G., Li, W., Tu, J., Chen, V. & Diwan, A., Jun 2026, In: JOR Spine. 9, 2, 10 p., e70174.Research output: Contribution to journal › Article › peer-review
Open AccessFile4 Downloads (Pure) -
Eucalyptus grandis MYB-like and RAN-like zinc finger proteins display dual roles in regulating plant immunity and symbiosis pathways
Hill, R. A., Plett, K. L., Wong-Bajracharya, J. W. H., Wang, M., Lipzen, A., Ng, V., Grigoriev, I. V., Martin, F., Anderson, I. C., Jeffries, T. C. & Plett, J. M., Aug 2025, In: Physiologia Plantarum. 177, 4, 15 p., e70454.Research output: Contribution to journal › Article › peer-review
Open AccessFile7 Downloads (Pure) -
Microbial evolution in allodapine bees: perspectives from trophallactic, socially plastic pollinators
Tierney, S. M., Jeffries, T. C. & Koch, H., Jul 2025, In: Evolutionary Applications. 18, 7, 18 p., e70137.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Citation (Scopus)17 Downloads (Pure) -
Microbiome impacts surgical outcomes– comparison of gut microbiome dysbiosis in patients undergoing lumbar microdiscectomy: results from the MISO pilot study
Sima, S., Jeffries, T., Sial, A., Sharma, S., De La Lande, R., Chopra, N., Kohan, S., Khong, P. & Diwan, A., Oct 2025, In: European Spine Journal. 34, 10, p. 4694-4704 11 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Citations (Scopus) -
Oligotrophic bacteria and pathotrophic fungi moderate multitrophic interactions in semi-arid and arid environments
Maisnam, P., Jeffries, T. C., Szejgis, J., Bristol, D. & Nielsen, U. N., Dec 2025, In: Environmental Microbiome. 20, 1, 15 p., 146.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Citation (Scopus)3 Downloads (Pure)
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Diet, gut microbiota and the evolution of lifespan and reproduction
Hunt, J. (PI), Jeffries, T. (Investigator) & Riegler, M. (Investigator)
31/12/22 → 30/12/26
Project: Research
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Investigation of micro-organisms inhabiting sediment ponds at a NSW mine site
Jeffries, T. (PI) & Spikmans, V. (Investigator)
Department of Planning and Environment
1/05/21 → 1/05/23
Project: Research
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Causes and consequences of biogeochemical mismatches during drought
Nielsen, U. (PI), Jeffries, T. (Investigator), Carrillo Espanol, Y. (Investigator), Maisnam, P. (Scholarship Recipient), Szejgis, J. (Scholarship Recipient), Sala, O. (Investigator) & Dijkstra, F. (Investigator)
1/05/19 → 1/07/23
Project: Research
Datasets
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Data from: Microbial evolution in allodapine bees: perspectives from trophallactic, socially plastic pollinators
Tierney, S., Jeffries, T. & Koch, H., Western Sydney University, 8 Jul 2025
DOI: 10.26183/nhm3-jh91, https://research-data.westernsydney.edu.au/published/29865a005b9911f0bda49de16547e89f
Dataset
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Collection of datasets containing the extension to SeqENV pipeline, Illumina sequencing data from sugarcane including subhabitats from soil, rhizsophere, stem and root and two marine datasets and analysis results
Ijaz, A. Z., Jeffries, T. & Hamonts, K., Western Sydney University, 22 May 2017
DOI: 10.4225/35/59224ad317fdc, https://research-data.westernsydney.edu.au/published/e6d58cc0519311ecb15399911543e199
Dataset
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Collection of datasets containing the TaxaSE bacterial taxonomic annotation pipeline, SILVA insilico datasets and Illumina sequencing data from sugarcane bacterial (16S) including subhabitats from soil, rhizosphere, stem and root
Ijaz, A. Z., Hamonts, K. & Jeffries, T., Western Sydney University, 17 May 2017
https://research-data.westernsydney.edu.au/published/e9b13570519311ecb15399911543e199
Dataset
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Data from: Microbial richness and composition independently drive soil multifunctionality
Delgado Baquerizo, M., Trivedi, P., Trivedi, C., Eldridge, D., Reich, P., Jeffries, T. & Singh, B., Dryad, 9 Jun 2018
DOI: 10.5061/dryad.h5q34, https://doi.org/10.5061/dryad.h5q34 and one more link, https://research-data.westernsydney.edu.au/published/d61d9a80bb3111ee90acd7ee162bf42d/ (show fewer)
Dataset
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Severe prolonged drought favours stress-tolerant microbes in dryland soils
maisnam, P., Jeffries, T., Szejgis, J., Bristol, D., Singh, B., Eldridge, D., Horn, S., Chieppa, J. & Nielsen, U., Mendeley Data, 4 Sept 2023
DOI: 10.17632/cbntssv2j8.2, https://data.mendeley.com/datasets/cbntssv2j8
Dataset
Activities
- 2 Society
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Australian Society for Microbiology (Event)
Jeffries, T. (Other)
1 Jan 2015 → 1 Jan 2018Activity: Membership › Society
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International Society for Microbial Ecology (Event)
Jeffries, T. (Other)
1 Jan 2003 → 1 Jan 2018Activity: Membership › Society