Dr Jowenna Xiao Feng Sim

Research Associate

School of Agriculture, Food and Wine

College of Sciences

Eligible to supervise Masters and PhD (as Co-Supervisor) - email supervisor to discuss availability.

Available For Media Comment.


I am an early career researcher in the field of agricultural sciences, specializing in the effects of pesticides on soil microbial functions and soil health. My work encompasses studying the interactions between pesticides and soil microbes, exploring their implications for soil health and ecosystem functioning. My dedication extends beyond academia, as I strive to translate my research into practical applications that benefit farmers, policy makers, and the agricultural industry.

I am a Research Scientist in the School of Agriculture, Food and Wine at Adelaide University. My work sits at the intersection of environmental microbiology, antimicrobial resistance (AMR), and agroecosystem health, with a focus on how agricultural practices and chemical inputs shape soil microbial communities and their functions.

My research spans pesticide–soil microbiome interactions across diverse cropping soils, resistome and functional gene profiling using molecular and sequencing-based approaches, and One Health–aligned questions relevant to environmental and food-system health. I am also involved in developing practical workflows for fungicide resistance detection, including rapid screening approaches that combine established molecular methods with emerging sensor technologies.

Alongside research, I contribute to teaching and postgraduate supervision, supporting students in microbiology, soil ecology, and nutrient cycling through applied, skills-focused learning.

Year Citation
2023 Sim, J. X. F., Drigo, B., Doolette, C. L., Vasileiadis, S., Donner, E., Karpouzas, D. G., & Lombi, E. (2023). Repeated applications of fipronil, propyzamide and flutriafol affect soil microbial functions and community composition: a laboratory-to-field assessment. Chemosphere, 331(138850), 1-13.
DOI Scopus16 WoS14 Europe PMC10
2022 Sim, J. X. F., Doolette, C. L., Vasileiadis, S., Drigo, B., Wyrsch, E. R., Djordjevic, S. P., . . . Lombi, E. (2022). Pesticide effects on nitrogen cycle related microbial functions and community composition. Science of the Total Environment, 807(Pt 1), 1-12.
DOI Scopus77 WoS72 Europe PMC42
2022 Sim, J. X. F., Drigo, B., Doolette, C. L., Vasileiadis, S., Karpouzas, D. G., & Lombi, E. (2022). Impact of twenty pesticides on soil carbon microbial functions and community composition. Chemosphere, 307(135820), 1-10.
DOI Scopus68 WoS64 Europe PMC33
2019 Sim, J. X. F., Khazandi, M., Pi, H., Venter, H., Trott, D. J., & Deo, P. (2019). Antimicrobial effects of cinnamon essential oil and cinnamaldehyde combined with EDTA against canine otitis externa pathogens. Journal of Applied Microbiology, 127(1), 99-108.
DOI Scopus37 WoS32 Europe PMC18
2019 Khazandi, M., Pi, H., Chan, W. Y., Ogunniyi, A. D., Sim, J. X. F., Venter, H., . . . Trott, D. J. (2019). In vitro antimicrobial activity of robenidine, ethylenediaminetetraacetic acid and polymyxin B nonapeptide against important human and veterinary pathogens. Frontiers in Microbiology, 10(837), 837-1-837-15.
DOI Scopus24 WoS22 Europe PMC20
2019 Sim, J. X. F., Khazandi, M., Chan, W. Y., Trott, D. J., & Deo, P. (2019). Antimicrobial activity of thyme oil, oregano oil, thymol and carvacrol against sensitive and resistant microbial isolates from dogs with otitis externa.. Veterinary dermatology, online(6), 524-e159.
DOI Scopus71 WoS66 Europe PMC45
  • Field-Based Diagnostic Kickstart: Exploration of potential use cases for a Rapid Electrochemical Diagnostic Tool for Detecting Triazole Resistance, CRC SAAFE Limited, 01/11/2025 - 01/11/2026
  • Enhancing the management of antimicrobial resistance (EMAR) in Fiji, ACIAR, 01/01/2020 - 30/06/2027

Courses I teach

  • EART 3012 Soil Ecology and Nutrient Cycling III (2026)
  • EART 1011 Soils in the Australian Landscape (2025)
  • ENVT 2015 Microbial Ecology (2025)

Date Role Research Topic Program Degree Type Student Load Student Name
2026 Co-Supervisor Enhancing the management of antimicrobial resistance in the Pacific Islands Doctor of Philosophy Doctorate Full Time Ms Kainat Gul

Connect With Me

External Profiles

Other Links