Dr Mohammad Tahir Siddiqui
BSc, MSc, PhD
Post-doctoral Research Fellow in Microbiology
Food and Markets Department
Dr Mohammad Tahir Siddiqui joined the Natural Resources Institute (NRI), University of Greenwich, in 2026 as a Postdoctoral Research Fellow in the Food and Markets Department. His research focuses on antimicrobial resistance (AMR), bacterial infectious diseases. food safety, environmental microbiology, microbial evolution and ecology, with an emphasis on understanding the emergence, persistence and transmission of antimicrobial-resistant bacteria across interconnected human, animal, food and environmental systems. Through his work within the IOSAR programme, he contributes to research addressing AMR through a One Health approach, integrating microbiological, molecular and genomics aspects.
Tahir is a microbiologist with research expertise spanning bacteriology, antimicrobial resistance mechanisms, molecular microbiology, environmental surveillance and genomics. His interests include extended-spectrum beta-lactamases (ESBLs), carbapenem resistance, colistin resistance and mobile genetic elements. He is particularly interested in the ecological and evolutionary processes that shape AMR dissemination, including biofilm formation, horizontal gene transfer, microbial community interactions and the movement of resistance determinants between bacterial populations. His research combines classical microbiological approaches with molecular methods and genomic tools to investigate resistant bacteria and improve understanding of their public health significance.
Before joining NRI, Tahir worked as a Research Associate and Senior Project Scientist at the Indian Institute of Technology Delhi (IIT Delhi), where he developed his experience in AMR, water quality monitoring, water surveillance, and One Health. He completed his PhD in Biosciences, specialising in Microbiology, at Jamia Millia Islamia (A Central University), New Delhi, India. His academic and research background provides a strong foundation in microbiology, molecular biology, microbial genetics and genomics.
Tahir has authored 18 peer-reviewed articles and 2 book chapters, reflecting his contributions to the scientific literature. His research interests continue to develop at the interface of food microbiology, environmental AMR, molecular epidemiology and genomic surveillance. He is also involved in academic peer review and editorial activities, contributing to the evaluation and communication of scientific research. He is member of American society for microbiology (ASM) and British society for antimicrobial chemotherapy (BSAC). In addition, his experience includes supporting postgraduate research and supervising MSc-level research projects.
At NRI, Tahir aims to advance understanding of how antimicrobial-resistant bacteria and resistance genes persist and spread across food-associated and environmental settings. He is particularly interested in integrating whole-genome sequencing (WGS), shotgun metagenomics, bioinformatics and quantitative approaches to investigate bacterial population structure, resistance evolution and transmission pathways. He also has a strong interest in bacteriophage biology and the potential of phage-based approaches to inform strategies for controlling bacterial pathogens and addressing AMR.
His broader research goal is to generate robust microbiological and genomic evidence that supports improved AMR surveillance, food safety and public health protection. By combining experimental microbiology, molecular biology, microbial ecology and genomic analysis within a One Health framework, he seeks to contribute to evidence-based strategies for understanding and mitigating the spread of antimicrobial resistance.
Tahir’s interests lie at the intersection of antimicrobial resistance (AMR), food microbiology, environmental microbiology and microbial genomics, with a particular focus on understanding how antimicrobial-resistant bacteria emerge, persist and spread across interconnected food, animal, human and environmental systems. As part of the Natural Resources Institute’s research community at the University of Greenwich, I am interested in contributing to the IOSAR programme and its One Health approach to understanding and addressing AMR.
Tahir is particularly interested in the ecological and evolutionary mechanisms underpinning resistance dissemination, including horizontal gene transfer, mobile genetic elements, biofilm-associated persistence and interactions between bacterial populations. I find the integration of classical microbiology with whole-genome sequencing (WGS), shotgun metagenomics, bioinformatics and molecular epidemiology especially exciting, as these approaches can reveal resistance determinants, trace bacterial lineages and improve our understanding of transmission pathways. I am also interested in bacteriophage biology and the potential application of phage-based approaches to controlling bacterial pathogens.
Tahir aims to generate evidence that strengthens AMR surveillance, improves understanding of resistance transmission in food-associated and environmental settings, and informs interventions to protect public health. In the longer term, I hope to integrate experimental microbiology, genomic surveillance and microbial ecology to support evidence-based strategies for reducing the spread of antimicrobial resistance and improving food safety within a One Health framework.
‘Genetic profiling and genomic Landscape of Colistin resistant bacterial isolates of marine origin and determination of efficient drug combination’ (2022, Indian Council of Medical Research)
- Contributes to research activities within NRI’s Food and Markets Department.
- Conducts research activities for the IOSAR project, focusing on antimicrobial resistance and related microbiological investigations.
- Mentors and supports MSc and PhD students in their research activities, laboratory work and experimental methods.
- Supports laboratory management, including the organisation of laboratory activities, maintenance of equipment, management of resources, and adherence to health and safety procedures and good laboratory practice.
- Research Associate fellowship, 2022, Indian Council of Medical Research, India
- MANF Junior Research Fellowship, 2014, University Grants Commission, India
- MANF Senior Research Fellowship, 2016, University Grants Commission, India
1. Siddiqui, M.T., Mondal, A.H., Gogry, F.A., Husain, F.M., Alsalame, A., Haq, Q.M.R. (2020). Plasmid-Mediated Ampicillin, Quinolone, and Heavy Metal Co-Resistance among ESBL-Producing Isolates from the Yamuna River, New Delhi, India. Antibiotics 9: 826. https://doi.org/10.3390/antibiotics9110826
2. Siddiqui, M.T., Mondal, A.H., Sultan, I., Ali, A., Haq, Q.M.R. (2019). Co-occurrence of ESBLs and silver resistance determinants among bacterial isolates inhabiting polluted stretch of river Yamuna, India. International journal of environmental science and technology 16(10): 5611-5622. https://doi.org/10.1007/s13762-018-1939-9
3. Ahmad, V., Siddiqui, M.T., Ali, A., Ahmad, S., Rizvi, S.A., Ahmad., S., Haq. Q.M.R. (2025) Pathogenic Potential of Amoxicillin-Clavulanic acid Resistant Klebsiella pneumoniae Isolated from Aquatic Environment: A Study of Multidrug Resistance and Virulence. BMC Infectious Diseases, 25(1):1495. https://doi.org/10.1186/s12879-025-11806-5
4. Ashraf, M., Siddiqui, M.T., Galodha, A., Anees, S., Lall, B., Chakma, S., Ahammad., S.Z. (2024). Pharmaceuticals and personal care product modelling: Unleashing Artificial Intelligence and Machine Learning capabilities and Impact on One Health and Sustainable Development Goals. Science of the total environment, 955:176999. https://doi.org/10.1016/j.scitotenv.2024.176999
5. Sultan, I., Siddiqui, M.T., Gogry, F.A., Haq, Q.M.R. (2022). Molecular characterization of resistance determinants and mobile genetic elements of ESBL producing multidrug-resistant bacteria from freshwater lakes in Kashmir, India. Science of the total environment, 827:154221. https://doi.org/10.1016/j.scitotenv.2022.154221
6. Gogry, F.A., Siddiqui, M.T., Sultan, I., Ali, A., Haq, Q.M.R. (2022). Colistin interaction and surface changes associated with mcr-1 conferred colistin resistance in E. coli and A. veronii strains. Pharmaceutics,14:295. https://doi.org/10.3390/pharmaceutics14020295
7. Gogry, F.A., Siddiqui, M.T., Sultan, I., Haq, Q.M.R. (2021). Current update on intrinsic and acquired colistin resistance mechanisms in bacteria. Frontiers in Medicine, 8:677720. https://doi.org/10.3389/fmed.2021.677720
8. Gogry, F.A., Siddiqui, M.T., Haq, Q.M.R. (2019). Emergence of mcr-1 conferred colistin resistance among bacterial isolates from urban sewage water in India. Environmental Science and Pollution Research 26(32):33715 33717. https://doi.org/10.1007/s11356-019-06561-5
9. Mondal, A.H., Siddiqui, M.T., Sultan, I., Haq, Q.M.R. (2019). Prevalence and diversity of blaTEM, blaSHV and blaCTX-M variants among multidrug resistant Klebsiella spp. from an urban riverine environment in India. International Journal of Environmental Health Research 29(2):117-129. https://doi.org/10.1080/09603123.2018.1515425
10. Sultan, I., Jan, A.T., Rahman, S., Siddiqui, M.T., Mondal, A.H., Haq, Q.M.R. (2018). Antibiotics, resistome and resistance mechanisms: A bacterial perspective. Frontiers in Microbiology. 9:2066. https://doi.org/10.3389/fmicb.2018.02066
11. Ali, A., Sultan, I., Mondal, A.H., Siddiqui, M.T., Gogry, F.A., Haq, Q.M.R. (2021). Lentic and effluent water of Delhi-NCR: A reservoir of multidrug-resistant bacteria harbouring blaCTX-M, blaTEM and blaSHV type ESBL genes. Journal of Water and Health. 19 (4): 592–603085. https://doi.org/10.2166/wh.2021.085
12. Siddiqui, K., Mondal, A.H., Siddiqui, M.T., Azam M., Haq, Q.M.R. (2018). Prevalence and molecular characterization of ESBL producing Enterobacteriaceae from highly polluted stretch of river Yamuna, India. Microbiology and Biotechnology letters, 46 (2): 135-144. https://doi.org/10.4014/mbl.1804.04017
13. Ahmadi, Y., Siddiqui, M.T., Haq, Q.M.R., Ahmad, S. (2018). Synthesis and characterization of surface-active antimicrobial hyperbranched polyurethane coatings based on oleo-ethers of boric acid. Arabian journal of Chemistry. 13(1): 2689-2701.
14. Tabassum, G., Mushtaq. A., Siddiqui, M.T., Singh, P., Dohare, R., Dev, K. (2026) Integrated Bioinformatics Analysis Identifies Prognostic Hub Genes and the Potential of GPIHBP1 as a Therapeutic Target in Lung Adenocarcinoma. In Silico Research in Biomedicine. 2:100228. https://doi.org/10.1016/j.insi.2026.100228
15. Faridi, N., Bhatt, S., Samuel, M., Agarwal, A., Pande, V., Siddiqui, M.T. Unravelling the dual nature of Ralstonia pseudosolanacearum: pathogenicity of type-II viable but nonculturable cells induced by cold and UV-C stress. Brazilian Journal of Microbiology. 57(1):97. https://doi.org/10.1007/s42770-026-01917-9
Dr Mohammad Tahir Siddiqui joined the Natural Resources Institute (NRI), University of Greenwich, in 2026 as a Postdoctoral Research Fellow in the Food and Markets Department. His research focuses on antimicrobial resistance (AMR), bacterial infectious diseases. food safety, environmental microbiology, microbial evolution and ecology, with an emphasis on understanding the emergence, persistence and transmission of antimicrobial-resistant bacteria across interconnected human, animal, food and environmental systems. Through his work within the IOSAR programme, he contributes to research addressing AMR through a One Health approach, integrating microbiological, molecular and genomics aspects.
Tahir is a microbiologist with research expertise spanning bacteriology, antimicrobial resistance mechanisms, molecular microbiology, environmental surveillance and genomics. His interests include extended-spectrum beta-lactamases (ESBLs), carbapenem resistance, colistin resistance and mobile genetic elements. He is particularly interested in the ecological and evolutionary processes that shape AMR dissemination, including biofilm formation, horizontal gene transfer, microbial community interactions and the movement of resistance determinants between bacterial populations. His research combines classical microbiological approaches with molecular methods and genomic tools to investigate resistant bacteria and improve understanding of their public health significance.
Before joining NRI, Tahir worked as a Research Associate and Senior Project Scientist at the Indian Institute of Technology Delhi (IIT Delhi), where he developed his experience in AMR, water quality monitoring, water surveillance, and One Health. He completed his PhD in Biosciences, specialising in Microbiology, at Jamia Millia Islamia (A Central University), New Delhi, India. His academic and research background provides a strong foundation in microbiology, molecular biology, microbial genetics and genomics.
Tahir has authored 18 peer-reviewed articles and 2 book chapters, reflecting his contributions to the scientific literature. His research interests continue to develop at the interface of food microbiology, environmental AMR, molecular epidemiology and genomic surveillance. He is also involved in academic peer review and editorial activities, contributing to the evaluation and communication of scientific research. He is member of American society for microbiology (ASM) and British society for antimicrobial chemotherapy (BSAC). In addition, his experience includes supporting postgraduate research and supervising MSc-level research projects.
At NRI, Tahir aims to advance understanding of how antimicrobial-resistant bacteria and resistance genes persist and spread across food-associated and environmental settings. He is particularly interested in integrating whole-genome sequencing (WGS), shotgun metagenomics, bioinformatics and quantitative approaches to investigate bacterial population structure, resistance evolution and transmission pathways. He also has a strong interest in bacteriophage biology and the potential of phage-based approaches to inform strategies for controlling bacterial pathogens and addressing AMR.
His broader research goal is to generate robust microbiological and genomic evidence that supports improved AMR surveillance, food safety and public health protection. By combining experimental microbiology, molecular biology, microbial ecology and genomic analysis within a One Health framework, he seeks to contribute to evidence-based strategies for understanding and mitigating the spread of antimicrobial resistance.
Tahir’s interests lie at the intersection of antimicrobial resistance (AMR), food microbiology, environmental microbiology and microbial genomics, with a particular focus on understanding how antimicrobial-resistant bacteria emerge, persist and spread across interconnected food, animal, human and environmental systems. As part of the Natural Resources Institute’s research community at the University of Greenwich, I am interested in contributing to the IOSAR programme and its One Health approach to understanding and addressing AMR.
Tahir is particularly interested in the ecological and evolutionary mechanisms underpinning resistance dissemination, including horizontal gene transfer, mobile genetic elements, biofilm-associated persistence and interactions between bacterial populations. I find the integration of classical microbiology with whole-genome sequencing (WGS), shotgun metagenomics, bioinformatics and molecular epidemiology especially exciting, as these approaches can reveal resistance determinants, trace bacterial lineages and improve our understanding of transmission pathways. I am also interested in bacteriophage biology and the potential application of phage-based approaches to controlling bacterial pathogens.
Tahir aims to generate evidence that strengthens AMR surveillance, improves understanding of resistance transmission in food-associated and environmental settings, and informs interventions to protect public health. In the longer term, I hope to integrate experimental microbiology, genomic surveillance and microbial ecology to support evidence-based strategies for reducing the spread of antimicrobial resistance and improving food safety within a One Health framework.
‘Genetic profiling and genomic Landscape of Colistin resistant bacterial isolates of marine origin and determination of efficient drug combination’ (2022, Indian Council of Medical Research)
- Contributes to research activities within NRI’s Food and Markets Department.
- Conducts research activities for the IOSAR project, focusing on antimicrobial resistance and related microbiological investigations.
- Mentors and supports MSc and PhD students in their research activities, laboratory work and experimental methods.
- Supports laboratory management, including the organisation of laboratory activities, maintenance of equipment, management of resources, and adherence to health and safety procedures and good laboratory practice.
- Research Associate fellowship, 2022, Indian Council of Medical Research, India
- MANF Junior Research Fellowship, 2014, University Grants Commission, India
- MANF Senior Research Fellowship, 2016, University Grants Commission, India
1. Siddiqui, M.T., Mondal, A.H., Gogry, F.A., Husain, F.M., Alsalame, A., Haq, Q.M.R. (2020). Plasmid-Mediated Ampicillin, Quinolone, and Heavy Metal Co-Resistance among ESBL-Producing Isolates from the Yamuna River, New Delhi, India. Antibiotics 9: 826. https://doi.org/10.3390/antibiotics9110826
2. Siddiqui, M.T., Mondal, A.H., Sultan, I., Ali, A., Haq, Q.M.R. (2019). Co-occurrence of ESBLs and silver resistance determinants among bacterial isolates inhabiting polluted stretch of river Yamuna, India. International journal of environmental science and technology 16(10): 5611-5622. https://doi.org/10.1007/s13762-018-1939-9
3. Ahmad, V., Siddiqui, M.T., Ali, A., Ahmad, S., Rizvi, S.A., Ahmad., S., Haq. Q.M.R. (2025) Pathogenic Potential of Amoxicillin-Clavulanic acid Resistant Klebsiella pneumoniae Isolated from Aquatic Environment: A Study of Multidrug Resistance and Virulence. BMC Infectious Diseases, 25(1):1495. https://doi.org/10.1186/s12879-025-11806-5
4. Ashraf, M., Siddiqui, M.T., Galodha, A., Anees, S., Lall, B., Chakma, S., Ahammad., S.Z. (2024). Pharmaceuticals and personal care product modelling: Unleashing Artificial Intelligence and Machine Learning capabilities and Impact on One Health and Sustainable Development Goals. Science of the total environment, 955:176999. https://doi.org/10.1016/j.scitotenv.2024.176999
5. Sultan, I., Siddiqui, M.T., Gogry, F.A., Haq, Q.M.R. (2022). Molecular characterization of resistance determinants and mobile genetic elements of ESBL producing multidrug-resistant bacteria from freshwater lakes in Kashmir, India. Science of the total environment, 827:154221. https://doi.org/10.1016/j.scitotenv.2022.154221
6. Gogry, F.A., Siddiqui, M.T., Sultan, I., Ali, A., Haq, Q.M.R. (2022). Colistin interaction and surface changes associated with mcr-1 conferred colistin resistance in E. coli and A. veronii strains. Pharmaceutics,14:295. https://doi.org/10.3390/pharmaceutics14020295
7. Gogry, F.A., Siddiqui, M.T., Sultan, I., Haq, Q.M.R. (2021). Current update on intrinsic and acquired colistin resistance mechanisms in bacteria. Frontiers in Medicine, 8:677720. https://doi.org/10.3389/fmed.2021.677720
8. Gogry, F.A., Siddiqui, M.T., Haq, Q.M.R. (2019). Emergence of mcr-1 conferred colistin resistance among bacterial isolates from urban sewage water in India. Environmental Science and Pollution Research 26(32):33715 33717. https://doi.org/10.1007/s11356-019-06561-5
9. Mondal, A.H., Siddiqui, M.T., Sultan, I., Haq, Q.M.R. (2019). Prevalence and diversity of blaTEM, blaSHV and blaCTX-M variants among multidrug resistant Klebsiella spp. from an urban riverine environment in India. International Journal of Environmental Health Research 29(2):117-129. https://doi.org/10.1080/09603123.2018.1515425
10. Sultan, I., Jan, A.T., Rahman, S., Siddiqui, M.T., Mondal, A.H., Haq, Q.M.R. (2018). Antibiotics, resistome and resistance mechanisms: A bacterial perspective. Frontiers in Microbiology. 9:2066. https://doi.org/10.3389/fmicb.2018.02066
11. Ali, A., Sultan, I., Mondal, A.H., Siddiqui, M.T., Gogry, F.A., Haq, Q.M.R. (2021). Lentic and effluent water of Delhi-NCR: A reservoir of multidrug-resistant bacteria harbouring blaCTX-M, blaTEM and blaSHV type ESBL genes. Journal of Water and Health. 19 (4): 592–603085. https://doi.org/10.2166/wh.2021.085
12. Siddiqui, K., Mondal, A.H., Siddiqui, M.T., Azam M., Haq, Q.M.R. (2018). Prevalence and molecular characterization of ESBL producing Enterobacteriaceae from highly polluted stretch of river Yamuna, India. Microbiology and Biotechnology letters, 46 (2): 135-144. https://doi.org/10.4014/mbl.1804.04017
13. Ahmadi, Y., Siddiqui, M.T., Haq, Q.M.R., Ahmad, S. (2018). Synthesis and characterization of surface-active antimicrobial hyperbranched polyurethane coatings based on oleo-ethers of boric acid. Arabian journal of Chemistry. 13(1): 2689-2701.
14. Tabassum, G., Mushtaq. A., Siddiqui, M.T., Singh, P., Dohare, R., Dev, K. (2026) Integrated Bioinformatics Analysis Identifies Prognostic Hub Genes and the Potential of GPIHBP1 as a Therapeutic Target in Lung Adenocarcinoma. In Silico Research in Biomedicine. 2:100228. https://doi.org/10.1016/j.insi.2026.100228
15. Faridi, N., Bhatt, S., Samuel, M., Agarwal, A., Pande, V., Siddiqui, M.T. Unravelling the dual nature of Ralstonia pseudosolanacearum: pathogenicity of type-II viable but nonculturable cells induced by cold and UV-C stress. Brazilian Journal of Microbiology. 57(1):97. https://doi.org/10.1007/s42770-026-01917-9