Overview
Background
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.
Availability
- Dr Ralf Dietzgen is:
- Not available for supervision
- Media expert
Fields of research
Qualifications
- Doctor of Philosophy, Eberhard-Karls- Universitat, Tubingen
Research interests
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Pest and disease management and control
Study of molecular plant-virus-insect interactions to identify novel targets for plant disease & pest control. Main focus on negative strand RNA virus (rhabdovirus, tospovirus) characterization, biodiversity, taxonomy and interactions with their hosts and insect vectors. Host-delivered RNA silencing for disease resistance against pests and diseases. Application of next generation sequencing technologies for virus characterization and diagnostics.
Works
Search Professor Ralf Dietzgen’s works on UQ eSpace
2011
Conference Publication
In-vitro assessment of the phytochemicals resveratrol, quercetin, mangiferin and epigallocatechin gallate on lipid accumulation in the 3T3-L1 cell line
Taing, Meng-Wong, Shaw, Paul N., Roberts-Thomson, Sarah J., Gidley, Mike, Dietzgen, Ralf G. and Monteith, Gregory R. (2011). In-vitro assessment of the phytochemicals resveratrol, quercetin, mangiferin and epigallocatechin gallate on lipid accumulation in the 3T3-L1 cell line. Experimental Biology 2011, Washington, United States, 9-13 April 2011. Bethesda, MD, United States: Federation of American Societies for Experimental Biology.
2011
Conference Publication
In-vitro assessment of mango extracts from four phylogentically diverse cultivars on lipid accumulation in a mouse adipocyte cell line
Taing, Meng-Wong, Roberts-Thomson, Sarah J., Shaw, Paul N., Gidley, Mike, Dietzgen, Ralf G. and Monteith, Gregory R. (2011). In-vitro assessment of mango extracts from four phylogentically diverse cultivars on lipid accumulation in a mouse adipocyte cell line. Australian Food Science Summer School 2011, Brisbane, Australia, 9-11 February 2011.
2011
Conference Publication
In-vitro assessment of mango extracts and the phytochemicals resveratrol, quercetin, mangiferin and epigallocatechin gallate on lipid accumulation in a mouse adipocyte cell line
Taing, Meng-Wong, Monteith, Gregory, Dietzgen, Ralf, Gidley, Mike, Roberts-Thomson, Sarah and Shaw, Nick (2011). In-vitro assessment of mango extracts and the phytochemicals resveratrol, quercetin, mangiferin and epigallocatechin gallate on lipid accumulation in a mouse adipocyte cell line. SBS 17th Annual Conference and Exhibition, Orlando, United States, 27-31 March 2011.
2010
Journal Article
A proposal to change existing virus species names to non-Latinized binomials
Van Regenmortel, Mhv, Burke, DS, Calisher, CH, Dietzgen, RG, Fauquet, CM, Ghabrial, SA, Jahrling, PB, Johnson, KM, Holbrook, MR, Horzinek, MC, Keil, GM, Kuhn, JH, Mahy, BWJ, Martelli, GP, Pringle, C, Rybicki, EP, Skern, T, Tesh, RB, Wahl-Jensen, V, Walker, PJ and Weaver, SC (2010). A proposal to change existing virus species names to non-Latinized binomials. Archives of Virology, 155 (11), 1909-1919. doi: 10.1007/s00705-010-0831-9
2010
Conference Publication
Characterisation of nutritional bioactives from mango fruit using cell-based assay
Wilkinson, Ashley, Dietzgen, Ralf G., Shaw, Paul N., Monteith, Gregory R., Gidley, Mike and Roberts-Thomson, Sarah J. (2010). Characterisation of nutritional bioactives from mango fruit using cell-based assay. ASMR Postgraduate Student Conference, Brisbane, 2nd June 2010.
2010
Conference Publication
In-vitro effects of the phytochemicals resveratrol, quercetin, mangiferin and epigallocatechin gallate on lipid accumulation in the 3T3-L1 cell line
Taing, Meng-Wong, Shaw, Paul N., Roberts-Thomson, Sarah J., Gidley, Mike, Dietzgen, Ralf G. and Monteith, Gregory R. (2010). In-vitro effects of the phytochemicals resveratrol, quercetin, mangiferin and epigallocatechin gallate on lipid accumulation in the 3T3-L1 cell line. Australasian Pharmaceutical Science Association (APSA) Focus on the Future, Brisbane, December 6-9 2010.
2009
Journal Article
The rhabdoviruses: Biodiversity, phylogenetics, and evolution
Kumin, I. V., Novella, I. S., Dietzgen, R. G., Padhi, A. and Rupprecht, C. E. (2009). The rhabdoviruses: Biodiversity, phylogenetics, and evolution. Infection Genetics and Evolution, 9 (4), 541-553. doi: 10.1016/j.meegid.2009.02.005
2008
Journal Article
Drosophila melanogaster mounts a unique immune response to the Rhabdovirus Sigma virus
Tsai, C.W., McGraw, E. A., Ammar, E.-D., Dietzgen, R.G. and Hogenhout, S.A. (2008). Drosophila melanogaster mounts a unique immune response to the Rhabdovirus Sigma virus. Applied and Environmental Microbiology, 74 (10), 3251-3256. doi: 10.1128/AEM.02248-07
2008
Book Chapter
Plant rhabdoviruses
Jackson, A. O., Dietzgen, R. G., Fang, R. X., Goodin, M. M., Hogenhout, S. A., Deng, M. and Bragg, J. N. (2008). Plant rhabdoviruses. Encyclopedia of Virology. (pp. 187-196) edited by Brian W. J. Mahy and Marc H. V. Van Regenmortel. Amsterdam, Netherlands: Elsevier . doi: 10.1016/B978-012374410-4.00492-1
2008
Conference Publication
Plant virus control: RNA silencing strategies
Mitter, N. and Dietzgen, R. G. (2008). Plant virus control: RNA silencing strategies. VIROCON 2009: XIX Annual Meeting of the Indian Virological Society . Recent Trends in Viral Disease Problems and Management, India, 2008. Hisar, Haryana, India: Indian Virological Society.
2008
Conference Publication
Tropical flavours to tempt consumers
Smyth,H. E., Kirchhoff, S., Fuller, S., Abberton, K., Davis, C., Bally, I. and Dietzgen, R.G. (2008). Tropical flavours to tempt consumers. Tropical Fruit in Human Nutrition and Health, Gold Coast, Qld, 8th-11th November 2008.
2008
Conference Publication
Nutritional bioactives in tropical fruit
Wilkinson, A. S., Lin, C. N., Flanagan, B., Dietzgen, R., Shaw, P. N., Monteith, G. R., Roberts-Thomson, S. J. and Gidley, M. J. (2008). Nutritional bioactives in tropical fruit. Experimental Biology 2008: Today's Research: Tomorrow's Health, San Diego, U.S., 5-6 April, 2008.
2007
Journal Article
An Asparaginyl Endopeptidase Mediates in Vivo Protein Backbone Cyclization
Saska, Ivana, Gillon, Amanda D., Hatsugai, Noriyuki, Dietzgen, Ralf G., Hara-Hishimura, Ikuko, Anderson, Marilyn A. and Craik, David J. (2007). An Asparaginyl Endopeptidase Mediates in Vivo Protein Backbone Cyclization. Journal of Biological Chemistry, 282 (40), 29721-29728. doi: 10.1074/jbc.M705185200
2007
Conference Publication
Genes associated with fruit colour in Carica papaya: Identification through expressed sequence tags and colour complementation
Devitt, L. C., Dietzgen, R. G. and Holton, T. A. (2007). Genes associated with fruit colour in Carica papaya: Identification through expressed sequence tags and colour complementation. 1st International Symposium on Papaya, Genting Highlands, Malaysia, 22-24 November 2005. Leuven, Belgium: International Society for Horticultural Science. doi: 10.17660/ActaHortic.2007.740.14
2007
Conference Publication
Genomics approaches to mango varietal improvement
Dietzgen, R. G., Bally, I., Devitt, L. C., Dillon, N., Holton, T. A., Gidley, M., Karan, M., Smyth, H. E., Sunarharum, W. and Wilkinson, A. (2007). Genomics approaches to mango varietal improvement. Amistar Sixth Australian Mango Conference, Cairns, QLD, Australia, 22-25 May 2007. Sydney, NSW, Australia: Horticulture Australia Limited; Australian Mango Industry Association.
2007
Conference Publication
Effects Of Mango Extracts and Components On Breast Cancer Cell Proliferation
Wilkinson, A. S., Lin, C. N., Flanagan, B. M., Dietzgen, R. G., Monteith, G. R., Shaw, P. N., Roberts-Thomson, S. J. and Gidley, M. J. (2007). Effects Of Mango Extracts and Components On Breast Cancer Cell Proliferation. 41st Annual Scientific Meeting of the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists and 10th Southeast Asian Western Pacific Regional Meeting of Pharmacologists, Adelaide, South Australia, 2-6 December 2007. Victoria, Australia: ASCEPT.
2006
Journal Article
Discovery of genes associated with fruit ripening in Carica papaya using expressed sequence tags
Devitt, Luke C., Sawbridge, Tim, Holton, Timothy A., Mitchelson, Keith and Dietzgen, Ralf G. (2006). Discovery of genes associated with fruit ripening in Carica papaya using expressed sequence tags. Plant Science, 170 (2), 356-363. doi: 10.1016/j.plantsci.2005.09.003
2006
Conference Publication
Norathyriol, the active metabolite of mangiferin, modulates PPAR activity and is a potential nutritional bioactive
Wilkinson, A. S., Lin, C. N., Dietzgen, R. G., Monteith, G. R., Shaw, P. N., Roberts-Thomson, S. J. and Gidley, M. (2006). Norathyriol, the active metabolite of mangiferin, modulates PPAR activity and is a potential nutritional bioactive. Annual Conference of the Australasian Pharmaceutical Science Association, Adelaide Hilton, Adelaide, South Australia, 3-5 December, 2006. Malvern,Vic, Australia: Australasian Pharmaceutical Science Association.
2006
Conference Publication
Nutritional bioactives in tropical fruit
Wilkinson, A, Hewavitharana, A, Flanagan, B M, Dietzgen, R G, Monteith, G R, Shaw, P N, Roberts-Thomson, S J and Gidley, M (2006). Nutritional bioactives in tropical fruit. The 3rd Australian Health & Medical Research Congress, Melbourne Convention Centre, Melbourne, Australia, 26 November-1 December, 2006. Melbourne, Vic, Australia: National Health and Medical Research Council.
2006
Journal Article
Fate of hairpin transcript components during RNA silencing and its suppression in transgenic virus-resistant tobacco
Mitter, Neena, Mitchell, Roger and Dietzgen, Ralf G. (2006). Fate of hairpin transcript components during RNA silencing and its suppression in transgenic virus-resistant tobacco. Journal of Biotechnology, 126 (2), 115-122. doi: 10.1016/j.jbiotec.2006.03.036
Funding
Current funding
Supervision
Availability
- Dr Ralf Dietzgen is:
- Not available for supervision
Supervision history
Current supervision
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Doctor Philosophy
Improving surveillance strategies for orthotospoviruses and thrips
Associate Advisor
Other advisors: Professor Andrew Geering
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Doctor Philosophy
Improving surveillance strategies for tospoviruses and thrips to enhance the biosecurity of the nursery industry
Associate Advisor
Other advisors: Professor Andrew Geering
-
Doctor Philosophy
Improving surveillance strategies for orthotospoviruses and thrips
Associate Advisor
Other advisors: Professor Andrew Geering
-
Doctor Philosophy
Improving surveillance strategies for orthotospoviruses and thrips
Associate Advisor
Other advisors: Professor Andrew Geering
Completed supervision
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2023
Doctor Philosophy
Exploring the involvement of small RNA response in capsicum defence against capsicum chlorosis virus at elevated temperature
Principal Advisor
Other advisors: Dr Chris Brosnan
-
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2019
Doctor Philosophy
Potential exotic virus threats to lucerne seed production in Australia
Principal Advisor
-
2017
Doctor Philosophy
Thrips-Tospovirus-Plant Molecular Interactions: Studies on capsicum chlorosis virus
Principal Advisor
-
2016
Doctor Philosophy
Cellular and molecular interactions of cytorhabdoviruses with their plant hosts
Principal Advisor
Other advisors: Associate Professor Karyn Johnson
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2008
Doctor Philosophy
Molecular Genetics of Carotenoid Production in Papaya Fruit
Principal Advisor
-
2005
Doctor Philosophy
SEQUENCE ANALYSIS AND VARIABILITY STUDY OF LETTUCE NECROTIC YELLOWS VIRUS
Principal Advisor
-
2004
Doctor Philosophy
INHIBITION OF CMV MOVEMENT FOR RESISTANCE AND HOST SPECIFICITY
Principal Advisor
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2003
Doctor Philosophy
GENETIC TRANSFORMATION OF LETTUCE FOR VIRUS RESISTANCE.
Principal Advisor
-
2024
Doctor Philosophy
Chemical ecology of plant-parasitoid interactions: understanding the importance of learning, non-host herbivores, and plant pathogens
Associate Advisor
Other advisors: Professor Michael Furlong
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2018
Doctor Philosophy
Biology and epidemiology of citrus black spot (Phyllosticta citricarpa) in Australia
Associate Advisor
Other advisors: Professor Andre Drenth
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2014
Doctor Philosophy
Nutritional properties of mango fruits: assessing links between genes and bioactivities
Associate Advisor
Other advisors: Professor Gregory Monteith, Professor Mike Gidley
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2013
Doctor Philosophy
Use of high throughput techniques in the assessment of the bioactivity of mango extracts
Associate Advisor
Other advisors: Professor Gregory Monteith, Professor Nick Shaw, Professor Mike Gidley
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2010
Doctor Philosophy
Characterisation of biological activities of mango fruit components using cell-based assays
Associate Advisor
Other advisors: Professor Nick Shaw, Professor Gregory Monteith, Professor Mike Gidley
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2008
Doctor Philosophy
Improved control of bacterial spot in stone fruit trees through the development and use of bio-PCR protocols for the detection of xanthomonas arboricola pv. pruni
Associate Advisor
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2004
Master Philosophy
DETECTION AND ELIMINATION OF MEALYBUG WILT-ASSOCIATED VIRUSES IN PINEAPPLE
Associate Advisor
-
2002
Doctor Philosophy
DEVELOPMENT AND APPLICATION OF DNA-BASED TECHNOLOGIES FOR IDENTIFICATION AND ANALYSIS OF SOILBORNE FUNGI ASSOCIATED WITH YIELD DECLINE IN SUGARCANE
Associate Advisor
Media
Enquiries
Contact Dr Ralf Dietzgen directly for media enquiries about:
- Mango
- Molecular plant virology
- Papaya
- Plant genomics
- Plant pathology - diagnostics
- Plants
- Protein expression
- Virus-plant-insect interactions
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