
Overview
Background
Prof Tim Mahony joined QAAFI’s Centre for Animal Science in October 2010, after 15 years of conducting research projects with the Queensland Government. He obtained his PhD from James Cook University in the area of molecular microbiology. During 2001 and 2002, Prof Mahony was a visiting professor at the University of Saskatchewan.
Research interests
Dr Mahony’s research interests are in the area of molecular virology revolving around improving viral disease control in production animals such as cattle and poultry. His group is characterising the molecular interactions between invading pathogens and the subsequent host responses with the goal of developing new vaccines and diagnostic technologies. A key component of this work includes improving the basic understanding of the molecular mechanisms that underpin and drive viral virulence and evolution. Next-generation sequencing has been used to sequence the genomes of herpesviruses and adenoviruses from a variety of species including, cattle, chickens, marsupials, horses, and crocodiles. Prof Mahony’s team is also investigating the role of virally encoded microRNAs in virulence, replication, and disease development. His group was one of the first in the world to apply bacterial artificial chromosome infectious clone technology for the efficient manipulation of herpesviruses that have large DNA genomes. These strategies are also being exploited to understand viral gene function and the development of vaccines.
Currently, Prof Mahony is researching risk factors that protect and predispose feedlot cattle to developing bovine respiratory disease (BRD). He is also leading the development of new vaccines for BRD and cattle tick infestations. Prof Mahony has also led the development of new vaccine delivery technologies for the poultry industry targeting the application of in ovo strategies. Prof Mahony research into improving animal health is increasing industry productivity, food safety, and consumer confidence in food products and he is keen to explore collaborations with other scientists in this area.
Prof Mahony has a strong interest to work with post-graduate students and has supervised a number of post-graduate students from Australia and overseas. These projects have covered research areas in molecular virology, animal health, vaccine development, and pathogen-host interactions.
Availability
- Professor Timothy Mahony is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Doctor of Philosophy, James Cook University
Works
Search Professor Timothy Mahony’s works on UQ eSpace
2014
Journal Article
Detection of Campylobacter in human faecal samples in Fiji
Devi, Aruna, Wilkinson, Jenny, Mahony, Timothy and Vanniasinkam, Thiru (2014). Detection of Campylobacter in human faecal samples in Fiji. Western Pacific Surveillance and Response Journal, 5 (4), 30-33. doi: 10.5365/WPSAR.2014.5.2.007
2014
Journal Article
Silica vesicles as nanocarriers and adjuvants for generating both antibody and T-cell mediated immune resposes to Bovine Viral Diarrhoea Virus E2 protein
Mody, Karishma T., Mahony, Donna, Zhang, Jun, Cavallaro, Antonino S., Zhang, Bing, Popat, Amirali, Mahony, Timothy J., Yu, Chengzhong and Mitter, Neena (2014). Silica vesicles as nanocarriers and adjuvants for generating both antibody and T-cell mediated immune resposes to Bovine Viral Diarrhoea Virus E2 protein. Biomaterials, 35 (37), 9972-9983. doi: 10.1016/j.biomaterials.2014.08.044
2014
Journal Article
Risk factors for bovine respiratory disease in Australian feedlot cattle: use of a causal diagram-informed approach to estimate effects of animal mixing and movements before feedlot entry
Hay, K. E., Barnes, T. S., Morton, J. M., Clements, A. C. A. and Mahony, T. J. (2014). Risk factors for bovine respiratory disease in Australian feedlot cattle: use of a causal diagram-informed approach to estimate effects of animal mixing and movements before feedlot entry. Preventive Veterinary Medicine, 117 (1), 160-169. doi: 10.1016/j.prevetmed.2014.07.001
2014
Journal Article
The intimin-like protein FdeC is regulated by H-NS and temperature in Enterohaemorrhagic Escherichia coli
Easton, Donna M., Allsopp, Luke P., Phan, Minh-Duy, Gomes Moriel, Danilo, Goh, Guan Kai, Beatson, Scott A., Mahony, Timothy J., Cobbold, Rowland N. and Schembri, Mark A. (2014). The intimin-like protein FdeC is regulated by H-NS and temperature in Enterohaemorrhagic Escherichia coli. Applied and Environmental Microbiology, 80 (23), 7337-7347. doi: 10.1128/AEM.02114-14
2014
Conference Publication
Inoculation of cattle with novel Escherichia coli antigens reduces enteric colonisation by enterohaemorrhagic E. coli O26
Vance, Megan, Mahony, Timothy, Easton, Donna, Alikhan, Nabil, Beatson, Scott, Schembri, Mark and Cobbold, Rowland (2014). Inoculation of cattle with novel Escherichia coli antigens reduces enteric colonisation by enterohaemorrhagic E. coli O26. Australian Society for Microbiology Annual Scientific Meeting, Melbourne, VIC, Australia, 5 - 9 July 2014.
2014
Journal Article
Freeze-drying of ovalbumin loaded mesoporous silica nanoparticle vaccine formulation increases antigen stability under ambient conditions
Mody, Karishma T., Mahony, Donna, Cavallaro, Antonino S., Stahr, Frances, Qiao, Shi Zhang, Mahony, Timothy J. and Mitter, Neena (2014). Freeze-drying of ovalbumin loaded mesoporous silica nanoparticle vaccine formulation increases antigen stability under ambient conditions. International Journal of Pharmaceutics, 465 (1-2), 325-332. doi: 10.1016/j.ijpharm.2014.01.037
2014
Journal Article
In vivo delivery of bovine viral diahorrea virus, E2 protein using hollow mesoporous silica nanoparticles
Mahony, D., Cavallaro, A. S., Mody, K. T., Xiong, L., Mahony, T. J., Qiao, S. Z. and Mitter, Neena (2014). In vivo delivery of bovine viral diahorrea virus, E2 protein using hollow mesoporous silica nanoparticles. Nanoscale, 6 (12), 6617-6626. doi: 10.1039/C4NR01202J
2014
Journal Article
Is Mycoplasma bovis a missing component of the bovine respiratory disease complex in Australia?
Horwood, P. F., Schibrowski, M. L., Fowler, E. V., Gibson, J. S., Barnes, T. S. and Mahony, T. J. (2014). Is Mycoplasma bovis a missing component of the bovine respiratory disease complex in Australia?. Australian Veterinary Journal, 92 (6), 185-191. doi: 10.1111/avj.12184
2014
Journal Article
Biosecurity strategies for the beef industry
Mahony, Timothy J. (2014). Biosecurity strategies for the beef industry. Australasian Biotechnology, 24 (3), 60-60.
2013
Journal Article
Mesoporous silica nanoparticles act as a self-adjuvant for ovalbumin model antigen in mice
Mahony, Donna, Cavallaro, Antonino S., Stahr, Frances, Mahony, Timothy J., Qiao, Shi Zhang and Mitter, Neena (2013). Mesoporous silica nanoparticles act as a self-adjuvant for ovalbumin model antigen in mice. Small, 9 (18), 3138-3146. doi: 10.1002/smll.201300012
2013
Journal Article
The meleagrid herpesvirus 1 genome is partially resistant to transposition
Hall, Robyn N., Meers, Joanne, Mitter, Neena, Fowler, Elizabeth V. and Mahony, Timothy J. (2013). The meleagrid herpesvirus 1 genome is partially resistant to transposition. Avian Diseases, 57 (2 SUPPL. 1), 380-386. doi: 10.1637/10339-082912-Reg.1
2013
Journal Article
A virological investigation into declining woylie populations
Pacioni, Carlo, Johansen, Cheryl A., Mahony, Timothy J., O'Dea, Mark A., Robertson, Ian D., Wayne, Adrian F. and Ellis, Trevor (2013). A virological investigation into declining woylie populations. Australian Journal of Zoology, 61 (6), 446-453. doi: 10.1071/ZO13077
2012
Journal Article
Expression of Two N1 Clones with Single Amino Acid Dissimilarity of Avian Influenza H5N1 Virus
Hartawan, Risza, Dharmayanti, Ni Luh Putu Indi, Robinson, Karl, Mahony, Timothy and Meers, Joanne (2012). Expression of Two N1 Clones with Single Amino Acid Dissimilarity of Avian Influenza H5N1 Virus. HAYATI Journal of Biosciences, 19 (4), 169-176. doi: 10.4308/hjb.19.4.169
2012
Journal Article
Freeze-drying of protein-loaded nanoparticles for vaccine delivery
Mody, Karishma, Mahony, Donna, Mahony, Tim and Mitter, Neena (2012). Freeze-drying of protein-loaded nanoparticles for vaccine delivery. Drug Delivery Letters, 2 (2), 83-91. doi: 10.2174/2210304x11202020083
2012
Journal Article
Back to BAC: The use of infectious clone technologies for viral mutagenesis
Hall, Robyn N., Meers, Joanne, Fowler, Elizabeth and Mahony, Timothy (2012). Back to BAC: The use of infectious clone technologies for viral mutagenesis. Viruses, 4 (2), 211-235. doi: 10.3390/v4020211
2012
Journal Article
Genetic characterization of equine adenovirus type 1
Cavanagh, Heather M. A., Mahony, Timothy J. and Vanniasinkam, Thiru (2012). Genetic characterization of equine adenovirus type 1. Veterinary Microbiology, 155 (1), 33-37. doi: 10.1016/j.vetmic.2011.08.014
2011
Journal Article
Endotoxin-free purification for the isolation of Bovine Viral Diarrhoea Virus E2 protein from insoluble inclusion body aggregates
Cavallaro, Antonio S., Mahony, Donna, Commins, Margaret, Mahony, Timothy J. and Mitter, Neena (2011). Endotoxin-free purification for the isolation of Bovine Viral Diarrhoea Virus E2 protein from insoluble inclusion body aggregates. Microbial Cell Factories, 10 (1) 57, 57.1-57.9. doi: 10.1186/1475-2859-10-57
2011
Journal Article
In vitro expression of native H5 and N1 genes of avian influenza virus by using Green Fluorescent Protein as reporter
Hartawan, Risza, Robinson, K., Mahony, T. and Meers, J. (2011). In vitro expression of native H5 and N1 genes of avian influenza virus by using Green Fluorescent Protein as reporter. Indonesian Journal of Animal and Veterinary Sciences, 16 (3), 234-241. doi: 10.14334/jitv.v16i3.618
2011
Journal Article
Characterization of EhaJ, a new autotransporter protein from enterohemorrhagic and enteropathogenic Escherichia coli
Easton, Donna M., Totsika, Makrina, Allsopp, Luke P., Phan, Minh-Duy, Idris, Adi, Wurpel, Daniël J., Sherlock, Orla, Zhang, Bing, Venturini, Carola, Beatson, Scott A., Mahony, Timothy J., Cobbold, Rowland N. and Schembri, Mark A. (2011). Characterization of EhaJ, a new autotransporter protein from enterohemorrhagic and enteropathogenic Escherichia coli. Frontiers in Microbiology: Frontiers in Cellular and Infection Microbiology, 2 (JUNE), 120.1-120.9. doi: 10.3389/fmicb.2011.00120
2011
Journal Article
Multiplex real-time RT-PCR detection of three viruses associated with the bovine respiratory disease complex
Horwood, Paul Francis and Mahony, Timothy John (2011). Multiplex real-time RT-PCR detection of three viruses associated with the bovine respiratory disease complex. Journal of Virological Methods, 171 (2), 360-363. doi: 10.1016/j.jviromet.2010.11.020
Funding
Current funding
Supervision
Availability
- Professor Timothy Mahony is:
- Available for supervision
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Available projects
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The development of strand-specific sequencing methodologies double-stranded DNA viral genomes
The herpesviruses are a large family of viruses that infected a broad range of hosts, such as mammals, reptiles, and molluscs. These viruses have a large double stranded DNA (dsDNA) genome. While the herpesviruses are considered to be genetically stable, variants with increased capacity to cause disease have emerged. The molecular basis underpinning the emergence of these virulent subtypes/genotypes for several herpesviruses of importance to veterinary medicine remains poorly understood. This project will utilise Oxford Nanopore sequencing technology to develop strategies to enable the strand-specific sequencing of herpesvirus genomes. The availability of strand-specific sequence data will be used to determine if the emergence of new genotypes of herpesviruses is a result of spontaneous mutation or the selection of existing genetic diversity within a viral isolate. This new knowledge will improve our understanding of this important virus family.
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The application of gene editing to improve animal resistance to infections
Gene editing technologies have enabled the rapid and specific modification of the genomes of complex organisms. Projects are available that will focus on the application of gene editing to increase the resilience of livestock cells to pathogens which reduce productivity. These projects will enable the candidate to gain experience in mammalian cell culture, transfection, growth and titration of viruses, molecular cloning, Western blotting, quantitative real-time PCR, genomic analyses, and fluorescence microscopy. These studies will improve our understanding of host/pathogen interactions towards the development of more resilient livestock.
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The application of synthetic biology to large DNA viral genomes
The capacity to manipulate the genomes of viruses in the laboratory remains dependent on their in vitro replication efficiency. This limitation has hindered our attempts better understand many of these viruses. This project will address this issue by applying long range PCR and DNA fragment assembly to construction copies of selected herpesviral genomes. The capacity of these genomes to facilitate rescue of infectious virus will also be determined. The availability of these infectious genome copies will aide in the development of improved diagnostics and control methods for these currently difficult to work with viruses.
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Characterisation of bovine herpesvirus 2 genome
Bovine herpesvirus 2 (BoHV-2) is associated with mastitis in cattle. Of all of the herpesviruses which infect cattle, BoHV-2 is by far the most poorly characterised. This project will address this knowledge gap by using next generation sequencing and conventional PCR and sequencing technologies to completely sequence the BoHV-2 genome. The results of this project will enable the genome-wide comparisons of the BoHV-2 genome to other bovine and mammalian herpesviruses. These comparisons will improve our understanding of host/virus interactions at the molecular level for important viral properties such as tissue tropism and virulence.
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Construction of bovine herpesvirus 5 infectious clone
Bovine herpesvirus 1 (BoHV-5) is a neurotrophic which is associated with severe and fatal disease in young cattle. Unlike bovine herpesvirus 1, BoHV-5 occurs sporadically in the world’s cattle population, except in South America. In this project, you will utilise genome edit tools, such as CRISPR/Cas9, to manipulate the BoHV-5 genome to construct an infectious clone of the virus. The results of this project will provide a better understanding of gene function in BoHV-5, particularly in respect to virulence. This information will improve our understand of how BoHV-5 interacts with its host at the molecular level and lead to the development of improved control strategies.
Supervision history
Current supervision
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Doctor Philosophy
The application of genome editing to improve the disease resilience of livestock species
Principal Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
Doctor Philosophy
Development of a viral vector vaccine for Australian flying foxes
Principal Advisor
Other advisors: Professor Joanne Meers
-
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Innovative RNAi for ectoparasites of livestock
Associate Advisor
Other advisors: Dr Karl Robinson, Dr Karishma Mody
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Characterisation of a novel flying fox retrovirus
Associate Advisor
Other advisors: Professor Joanne Meers, Dr Lee McMichael
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
Completed supervision
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2025
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
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2024
Master Philosophy
The Development of a Novel Approach for the Differentiation of Bovine herpesvirus 1 field and vaccine strains
Principal Advisor
Other advisors: Dr Karl Robinson
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2021
Doctor Philosophy
Identification of Molecular Factors Influencing Bovine alphaherpesvirus type 1 Replication Capacity and Virulence
Principal Advisor
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2020
Doctor Philosophy
Immunological Difference In Bovine Respiratory Disease Susceptibility
Principal Advisor
-
2014
Doctor Philosophy
Investigating Genetic Components of Meleagrid herpesvirus 1 for Viral Vector Applications for the Poultry Industry
Principal Advisor
Other advisors: Professor Joanne Meers
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2009
Doctor Philosophy
The development of a novel methodology for the delivery of DNA vaccines using the herpesvirus protein VP22
Principal Advisor
-
2025
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
2018
Doctor Philosophy
Application of clay nanoparticles as efficient adjuvant in vaccine against pathogenic diarrheagenic E. Coli
Associate Advisor
Other advisors: Associate Professor Barbara Rolfe
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2015
Doctor Philosophy
Epidemiology of bovine respiratory disease in Australian feedlot cattle
Associate Advisor
-
2015
Doctor Philosophy
Mycoplasma bovis in Australian feeder cattle
Associate Advisor
Other advisors: Dr Justine Gibson
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2015
Doctor Philosophy
Development of Nanoparticle based Vaccine Delivery Systems
Associate Advisor
Other advisors: Professor Michael Yu
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2011
Master Philosophy
Molecular Characterisation and Expression of the H5 and N1 Genes of an Indonesian Avian Influenza Virus Isolate
Associate Advisor
Other advisors: Professor Joanne Meers
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2009
Doctor Philosophy
The essential and nonessential genes of Bovine herpesvirus-1
Associate Advisor
Other advisors: Professor Joanne Meers
Media
Enquiries
Contact Professor Timothy Mahony directly for media enquiries about:
- Animal vaccines
- Animals - viral diseases
- Vaccines - animals
- Viral diseases - animals
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