Find an expert

Professor Elizabeth Aitken (Liz) obtained her BSc Hons in Agricultural Science (Crop Science) from Edinburgh University where she specialised in Plant Pathology. She then went on to undertake her PhD studies at Aberdeen University in conjunction with the UK Forestry Commission on a study of dieback on Scots pine trees. This was followed with postdoctoral studies at Birmingham University and the Sainsbury Lab, aiming to identify a rust resistance gene by transposon tagging. In 1993 she moved to Australia and joined UQ as an academic staff member.

Much of Liz’s research at UQ has focused on diseases of tropical crops in particular banana, ginger, cotton and sunflower. Research topics have included the genetics of plant-pathogen interactions, molecular aspects of pathogenicity and disease diagnostics. This research has been undertaken with strong collaborations with the Queensland Department of Primary Industries and with CSIRO. Research topics have included the genetics of plant-pathogen interactions, molecular aspects of pathogenicity and disease diagnostics. This work has assisted in the identification of disease incursions in particular in banana and of cryptic plant pathogen species of Pythium in ginger and Phomopsis in sunflower. One current research focus includes identification of resistance to Fusarium wilt in diploid banana lines for potential deployment against TR4 in commercial banana cultivars; this has received funding from BMGF in collaboration with the International Institute of Topical Agriculture in Africa as well as from Hort Innovation Australia. Other studies include analysis of putative pathogenicity genes including Six genes in Fusarium oxysporum affecting banana, strawberry and ginger and in collaboration with colleagues at CSIRO studies on Fusarium spp on wheat particularly with regard to influence of environmental factors related to climate change.

Since commencing at UQ in 1993, Liz has supervised numerous postgraduate and honours students and participated in undergraduate teaching at all levels in plant science and in particular in plant pathology and fungal biology. She has also taken on various roles and committee membership in postgraduate student mentoring, research integrity and biosafety.

My research team in crop protection is studying the biology, epidemiology and ecology of economically significant diseases and insect pests. The overarching objective of the research is to facilitate innovative and sustainable management of crop pests (insects and diseases) using disruptive new tools that can be incorporated with the less harmful existing control options in diverse farming systems.

Dr Mobashwer Alam is a Senior Research Fellow at the Centre for Horticultural Science, a theme leader of Predictive Agriculture for Improved Productivity and Value, an Advance Queensland Industry Fellow, and the team leader of the National Passionfruit Breeding and Evaluation Program (PF22000) at the Queensland Alliance for Agriculture and Food Innovation, UQ. He is currently based at Maroochy Research Station, Nambour, QLD 4560, Sunshine Coast. He has more than twenty years of research and teaching experience in the public and private industries and in universities in Australia and Bangladesh. Dr Alam has experience in multi-disciplinary research, including plant breeding, quantitative genetics, genomics, plant physiology, and crop modelling. Before joining at QAAFI, Dr Alam had been working as a Senior Plant Breeder (Grain Sorghum) at Nuseed Pty Ltd. He achieved his PhD in plant molecular genetics through the School of Agriculture and Food Sciences of the University of Queensland. Before coming in Australia in 2008, Dr Alam had been working as a lecturer and assistant professor of the Department of Genetics and Plant Breeding at Patuakhali Science and Technology University in Bangladesh. Throughout his academic and research career, he worked on multiple crops, including Macadamia, Passionfruit, Stone Fruits, Sorghum, Sugarcane, Lablab Bean, Tomato, Okra, and Ash Gourd. He is interested in developing rapid breeding tools and utilizing plant genomics in horticultural crop improvement.

In my PhD I analysed and modelled biophysical processes (light interception, transpiration and photosynthesis) and their relationships in apple and pear trees during the growing season and at different levels of plant water status. During this time I collaborated in the upgrade of a functional-structural peach model (L-PEACH). Later I focused my research on the effect of carbohydrates on grapevine and berry growth, as well as the effects of light, temperature and VPD on carbon assimilation and transpiration both at leaf and canopy level.

Currently, I am undertaking research on improving management practices in avocado, macadamia and mango. I am focused on studying architecture, vegetative vigour, crop load and light interception using functional-structural plant modelling to understand the interactions between management practices, environmental factors, plant carbon balance and growth.

Dr Marlize Bekker is a Senior Lecturer in Food Chemistry at The University of Queensland’s School of Agriculture and Food Sustainability. She has a PhD in Chemistry and has over 15 years of experience in flavour and aroma chemistry in food and beverage products. Her research interests include fermented food and beverages. Specifically, evaluating the formation, fate, and function of key aroma and flavour compounds in these food and beverage products and examining the impacts of processing on flavour. Marlize is also interested in the isolation and identification of important flavour and aroma compounds from natural Australian bush foods and the development of new products. Her expertise lies heavily in the application of chromatographic techniques.

Active projects:

• A Deadly Solution: Combining Traditional Knowledge and Western Science for an Indigenous-led Bushfood Industry (ARC Discovery-Indigenous)
• Identifying heirloom sugarcane varieties with high sugar and unique flavour profiles (UQ’s Agri-Food Innovation Alliance (AFIA) Industry Kickstarter Grant program)
• Identifying the desirable flavour, aroma, and sensory profiles of novel Australian native lime hybrids (UQ’s Agri-Food Innovation Alliance (AFIA) Industry Kickstarter Grant program)
• Maximising flavour throughout the vanilla production process (Faculty of Science BIRRST Partner 2024 funding scheme)
• Exploring the Flavour Potential of Australian Cocoa (Faculty of Science BIRRST Partner 2024 funding scheme)
• Unlocking Nature's Signals: Discovering the Semiochemicals for Effective Management of Australian Native Sugarcane Soldier Fly(Sugar Research Australia’s 2024 Sugar Industry Research Award Round)
• Optimising Cold Brew Tea Extraction and Concentration Processes (FaBA Industry Kickstarter)

Professor Christine Beveridge's research focuses on understanding the role of plant hormones in the regulation and coordination of plant development, particularly shoot architecture. Major highlights have involved discovery of strigolactone as a plant hormone and that sugar signalling is a driver of shoot branching. Christine’s research has recently expanded toward identifying how different genetic and physiological networks work together to control plant productivity. In the role of Director, Christine has established funding for the ARC Centre of Excellence for Plant Success in Nature and Agriculture (Plant Success - Plant Success) to achieve this aim.

Christine is a Fellow of the Australian Academy of Science, an ARC Georgina Sweet Laureate Fellow, a Highly Cited Researcher (Researcher Recognition - Web of Science Group (clarivate.com)), and past President of the International Plant Growth Substances Association. Christine is a life member of the Australian Society of Plant Scientists (asps.org.au).

Please contact Christine directly for information on projects. We like to build projects around the student and their experience, opportunity and career aspirations. Projects are occassionally advertised at www.plantsuccess.org or by twitter #cabeveridge29.

Dr Botella's research interests are in genetic engineering, molecular biology and signal transduction in plants.

Dr. Jimmy Botella is Professor of Plant Biotechnology at the University of Queensland. He obtained a degree in Quantum Chemistry from the University of Madrid (Spain) and a PhD in Biochemistry from the University of Malaga (Spain). After postdoctoral positions at Michigan State University and Pennsylvania State University he joined the University of Queensland in 1995. At UQ he founded the Plant Genetic Engineering Laboratory (PGEL) specialising in the fields of tropical and subtropical agricultural biotechnology for almost 15 years. J. Botella has eleven international patents in the field of Plant Biotechnology and is a founding member of two biotechnology companies (Coridon Ltd. and Origo Biotech).

Dr Botella is a member of the Plant Molecular Biology and Biotechnology research group.

Some highlights of the Plant Genetic Engineering Laboratory’s research:

• Production and field trial of the world’s first genetically modified pineapples with genetic constructs to control flowering time. These pineapples will allow farmer control over harvesting times.
• Development of a new technology to confer protection against nematode infestation.
• Discovery of a gene that can confer resistance to the devastating fungus Fusarium oxysporum in plants.
• Development of a new technology to confer protection against pathogenic fungi in plants.

Research interests

Dr. Botella’s research has two major foci: basic cell biology and applied biotechnology. In cell biology he is interested in studying the function of the Heterotrimeric G proteins in plants. This family of proteins is extremely important in humans but their role in pant systems is still largely unknown. Dr. Botella’s research has strongly contributed to the current body of knowledge available in plants with critical contributions such as the discovery and characterization of the first plant gamma subunits and the establishment of these subunits as the critical element conferring function specificity to all plant G proteins. Dr. Botella’s team has also discovered the important role that these proteins play in defense against pathogens. New and unpublished data has now revealed that G proteins are important yield enhancing factors in crops such as rice. Another research interest resides in the communication between plants and insects. There is plenty of knowledge of how important smell, volatiles emitted by the plant, is for foraging insects in order to determine their host preferences. Nevertheless, most of the available studies have been performed using synthetic chemicals in artificial experimental settings. Dr. Botella’s team and collaborators have genetically engineered plants to produce different volatile mixes in the flowers in order to perform in vivo behavioral studies in insects.

Biotechnology research at the Plant Genetic Engineering Laboratory mostly arises from discoveries made in basic research. The PGEL focuses in tropical and subtropical crops. These crops have attracted little attention in terms of biotechnology but are essential sources of food and energy for a large part of the world’s population, especially in Asia and the Indian subcontinent. The PGEL has developed a number of platform technologies that can be applied to multiple crops in order to confer resistance to pathogens, modify plant architecture and control flowering time.

Current research projects include:

• Plant heterotrimeric G proteins: New roles in defence, stomatal control and ABA perception.
• Putting smells into context: using in vivo technologies to understand plant-insect odour communication.
• Use of host-derived RNA interference technology to control plant pathogens (especially pathogenic fungi and nematodes).
• Control of Fusarium wilt disease.
• Genetic improvement of grain crops.
• Genetic engineering research projects

As part of my PhD, I hypothesized that light, as an energy source and signal, plays a critical role in the processes of vegetative bud break, leaf fall and axis mortality in mango tree, and that incorporating these effects into the functional-structural plant model (FSPM) V-Mango, could lead to a significant improvement in model outputs. To evaluate this hypothesis, I studied the functional relationships between light quantity and quality in mature mango tree crowns. I also characterized and modelled the effects of architecture, light, and pruning on axis appearance and disappearance. Finally, all of these results were integrated into V-Mango after coupling it with a light interception model and the model outputs were successfully validated at the axis and whole tree scales.

Dr Robyn Cave is a horticulturalist with research experience in plant propagation, reproductive biology and the control of plant development and flowering. Robyn's current projects involve developing propagation protocols for Australian native plants for food, ornamental purposes and land restoration.

Summary of Research:

• My current research at UQ is as Professor in this School (teaching AGRC3040 Crop Physiology) and as an Affiliate Professor of QAAFI. Since 2020, with full-time appointment at UQ, my research portfolio has included multiple projects in applications of machine learning and artificial intelligence into the ag domain. This area is developing rapidly and across UQ, I am engaging with faculty in multiple schools (ITEE, Maths and Physics, Mining and Mech Engineering) as well as in the Research Computing Centre to develop new projects and training opportunities at the interface of field agriculture and these new digital analytics.
• My career research has been around genetic and environment effects on physiology of field crops, particularly where drought dominates. Application of quantitative approaches (crop simulation and statistical methods) and phenotyping (aerial imaging, canopy monitoring) to integrate the understanding of interactions of genetics, growth and development and the bio-physical environment on crop yield. In recent years, this work has expanded more generally into various applications in digital agriculture from work on canopy temperature sensing for irrigation decisions (CSIRO Entrepreneurship Award 2022) through to applications of deep-learning to imagery to assist breeding programs.
• Much of this research was undertaken with CSIRO since 1996. Building on an almost continuous collaboration with UQ over that time, including as an Adjunct Professor to QAAFI, Prof Chapman was jointly appointed (50%) as a Professor in Crop Physiology in the UQ School of Agriculture and Food Sciences from 2017 to 2020, and at 100% with UQ from Sep 2020. He has led numerous research projects that impact local and global public and private breeding programs in wheat, sorghum, sunflower and sugarcane; led a national research program on research in ‘Climate-Ready Cereals’ in the early 2010s; and was one of the first researchers to deploy UAV technologies to monitor plant breeding programs. Current projects include a US DoE project with Purdue University, and multiple projects with CSIRO, U Adelaide, La Trobe, INRA (France) and U Tokyo. With > 8500 citations, Prof Chapman is currently in the top 1% of authors cited in the ESI fields of Plant and Animal Sciences and in Agricultural Sciences.

Professor Bhagirath Chauhan joined the Queensland Alliance for Agriculture and Food Innovation (QAAFI) at The University of Queensland in 2014. He now has a joint appointment with QAAFI and SAFS at UQ. He leads research on weed biology and weed management in different crops, including wheat, maize, sorghum, mungbean, soybean, chickpea, rice, and cotton. He has studied the seed ecology of >100 weed species and he has a vast experience in developing integrated weed management options based on agronomic approaches (row spacing, seeding rates, weed-competitive cultivars, etc.). Prof Chauhan has more than 20 years of research experience in conducting trials on the improved agronomy of new production systems and integrated weed management options in Australia and >10 Asian countries. Before joining UQ, Prof Chauhan worked at the International Rice Research Institute (IRRI) in the Philippines for seven years. He has a strong collaboration in several countries, including USA, Sri Lanka, India, Nepal, Iran, Pakistan, Nigeria and China. His research interests include weed ecology and biology, herbicide use, management of herbicide-resistant weeds, non-chemical weed management options, integrated weed management systems using agronomic and varietal components, nanoherbicides, tillage systems, and conservation agriculture systems. He is a Speciality Chief Editor with Frontiers in Agronomy and an Associate Editor of Weed Science (Weed Science Society of America). He has published over 350 articles in peer reviewed journals and several books and book chapters. He is an Honorary Member of Weed Science Society of America (WSSA) and a life member of International Weed Science Society (IWSS), Asia Pacific Weed Science Society (APWSS), and Indian Society of Weed Science (ISWS).

Dr Elizabeth (Liz) Dann joined QAAFI’s Centre for Plant Science in October 2010. She is a plant pathologist based at the Ecosciences Precinct at Dutton Park. Her research aims to increase the productivity and quality of tropical and sub-tropical crops through improved management of diseases.

She obtained her PhD in 1995 from the University of Sydney, and undertook post doctoral research at Michigan State University, USA and at the University of Sydney, prior to joining the Plant Pathology (Horticulture) research team within the Queensland Government in 2002.

RESEARCH INTERESTS

Dr Dann has broad expertise in the discipline of plant pathology. Her diverse area of research includes investigation of natural defence mechanisms in plants, plant disease epidemiology and diagnostics. Her research is very focused on delivering improved quality and productivity to horticultural industries through optimised disease management.

She is recognised internationally for her work on systemic induced resistance in plants and its practical implementation. A large component of her research is focused on assessing non-traditional products or treatments that may be valuable in disease management, such as compounds which activate disease resistance pathways. Such products are becoming more popular given concerns over pesticides in the environment and residues in fruit, and the drive towards more sustainable production of our food.

Dr Dann supervises several students on projects investigating molecular diversity and epidemiology of fungal pathogens and constitutive and inducible plant defences.

Current active areas of research include: assessment of avocado rootstocks for resistance to Phytophthora cinnamomi optimising phosphonate treatments for management of Phytophthora root rot epidemiology of brown root rot disease of avocados and related molecular diversity of causal “Phellinus noxius” fungi assessment of best management practices for reducing losses in mango and avocado caused by postharvest diseases investigations of UV-C exposure of fruit for disease control systemic induced resistance in passionfruit to Passionfruit Woodiness Virus evaluation of soil amendments for improved soil and plant health and soilborne disease suppression.

Plant viruses and horticultural crop improvement

Dr Dietzgen is internationally recognised for his work on plant virus characterisation, detection and engineered resistance. Before joining UQ, Dr Dietzgen was a Science Leader in Agri-Science in the Queensland Department of Employment, Economic Development and Innovation. He previously held research positions at the University of Adelaide, University of California, Cornell University and University of Kentucky. Dr Dietzgen’s research interests are in molecular virus-plant-insect interactions, virus biodiversity and evolution, and disease resistance mechanisms. His focus is on the biology of RNA viruses in the family Rhabdoviridae and the molecular protein interactions of plant-adapted rhabdoviruses and tospoviruses. He has published extensively on plant virus characterisation and genetic variability, RNAi- mediated virus resistance and diagnostic technologies with 20 review articles and book chapters and over 65 peer-reviewed publications.

I am an entomologist with a research interest focused on studying host-pathogen interactions and discovering insect-specific viruses. I have investigated gene expression and the role of small non-coding RNAs in various host-pathogen models, particularly in crucial agricultural pests and medically significant vectors like the Aedes aegypti, responsible for transmitting dengue and Zika viruses. My previous project, aimed at exploring the function of Oryctes rhinoceros nudivirus in the biological control of the coconut rhinoceros beetle in the Pacific Islands, has substantially enhanced our comprehension of this invasive pest within the framework of an offshore biosecurity strategy. By establishing industry partnerships and securing funding to improve the Australian sugar industry, one of Australia's largest agricultural sectors, I have been able to focus on entomopathogenic viruses that affect root-feeding pests in sugarcane.

My research focuses on the biological control and integrated management of insect pests. Understanding the ecological and biological relationships between insects and their natural enemies (pathogens, parasitoids and predators) and the interactions between these natural enemies is fundamental to effective biological control and is central to my research. Strategies which manipulate natural enemies to enhance their impact on pest populations are under development, examples include

• Integration of biological stressors and fungal entomopathogens for improved control of insect pests
• Reduced insecticide inputs combined with the provision of adult food sources to enhance endemic parasitoid performance
• Utilizing inducible plant defences to manipulate pests and improve the effectiveness of natural enemies.

Externally funded research projects concentrate on the development of sustainable pest management strategies for insect pests in developing countries. In Indonesia the structure and function of the natural enemy complexes attacking the diamondback moth (Plutella xylostella) and the cabbage cluster caterpillar (Crocidolomia pavonana) are being determined. In Samoa the biology and ecology of the egg parasitoid Trichogramma chilonis is being investigated and the possibility of its release as a biological control agent of C. pavonana in Fiji, Tonga and Solomon Islands explored. Research in Fiji is focused on quantifying field resistance of the diamondback moth to commonly used insecticides. An insecticide resistance management strategy has been developed and will be implemented in collaboration with UN-FAO.

I am a plant pathologist specialising in the study of fungal pathogens of all manner of plants from agricultural and natural settings. My research career has spanned various areas of interest from horticultural and agricultural crop diseases, the development of disease forecasting systems, the study of soil mycorrhizal fungi, the use of beneficial microbes in promoting soil health and plant disease management and the scholarship of teaching and learning.

A key area of development has been the investigation of dieback disorders of invasive woody weeds in the Australian landscape. This has resulted in the development of a bioherbicide for the invasive weed Parkinsonia and the establishment of a start-up company - BioHerbicides Australia (BHA). BHA now produces this bioherbicide (which is a registered product) and has developed a range of synthetic herbicide products along with the delivery technology required for field implementation. My research team bioprospects for new control agents for a range of woody weeds (there are many) and also explores the use of synthetic herbicides. My research takes me to many interesting locations in outback Queensland, the Northern Territory, Western Australia and New South Wales. I am interested in many weed species including mimosa bush, chinee apple, celtis, prickly acacia, athel pine, mesquite, leucaena, rubber vine and various cacti.

I have been Deputy Head of School (Gatton) since 2013 where my main function has been to support the HoS as we develop this school through a process of growth and change with recruitment of new staff, development of new processes and teams and create a true sense of collegiality across both campus locations. We have taken Agriculture at UQ from an international ranking of #7 in 2016 to #3 in 2022. Apart from administrative tasks, my key role is to support and develop new staff to settle into their academic jobs, assist them with achieving milestones and probation and manage their development of KPIs and career development.

I am primarily a plant virologist but have has a diversity of research interests in mycology, bacteriology and even entomology as part of broader biosecurity projects. Living in Queensland has provided me the opportunity to work on diseases of tropical and subtropical horticultural crops such as banana, avocado, pineapple, citrus and sugarcane, and his expertise has been sought in developing nations throughout the world, particularly in southeast Asia.I strive to see fundamental scientific discoveries translated into practical outcomes for farmers. I also take a keen interest in promoting the profession of plant pathology through a previous role as President of the Australasian Plant Pathology Society, and my current role as Vice President of the International Society of Plant Pathology.