Dr Christopher Preston

Dr Christopher Preston
 Position Associate Professor
 Org Unit School of Agriculture, Food and Wine
 Email christopher.preston@adelaide.edu.au
 Telephone +61 8 8313 7237
 Location Floor/Room GN 08 ,  Waite ,   Waite
  • Research Interests

    Weed Science group page


    The Weed Science lab has a range of interests in weed management issues. These include the evolution, biochemical mechanisms and management of herbicide resistant weeds, ecology and biology and management of emerging weeds in agriculture, gene flow from herbicide tolerant crops and its implications for farm management, risk assessment for weeds and herbicide tolerant crops and patterns of genetic diversity in weed populations. Current projects include:

    • Mechanisms, evolution and inheritance of resistance

    • Mechanisms and inheritance of glyphosate resistance in Bromus diandrus

    • Mechansims and inheritance of resistance to 2,4-D, diflufenican, atrazine and ALS-inhibiting herbicides in Sisymbrium orientale

    • Mechanisms and inheritance of glyphosate resistance in Echinochloa colona

    • Resistance to ACCase-inhibiting herbicides in Hordeum spp. and its management

    • Improved herbicide efficacy and longevity in southern Australian no-till farming systems

    • Improving integrated weed management (IWM) practice of emerging weeds in the southern and western regions of Australia

    • Weed management in Australia's southern region mixed farming systems: strategies to combat herbicide resistance

    • New uses of existing chemistry to manage brome grass and barley grass

    • Seed-bank biology of emerging weeds in Australia

    • Managment of resistance to clethodim in Lolium rigidum

    • Glyphosate resistance in Conyza bonariensis and its management

    • Biology and management of Chloris truncata (windmill grass) and Chloris virgata (feathertop Rhodes grass) in southern Australia

    • Novel herbicide tolerance in pulse crops

  • Publications

    Some interesting publications:

    Powles, S.B., Lorraine-Colwill, D.F., Dellow, J.J. and Preston, C. 1998. Evolved resistance to glyphosate in rigid ryegrass (Lolium rigidum) in Australia. Weed Science 46: 604-607.

    Rieger, M.A., Lamond, M., Preston, C., Powles, S.B. and Roush, R.T. 2002. Pollen-mediated movement of herbicide resistance between commercial canola fields. Science 296: 2386-2388.

    Gaines, T.A., Zhang, W.L., Wang, D.F., Bukun, B., Chisholm, S.T., Shaner, D.L., Nissen, S.J., Patzoldt, W.L., Tranel, P.J., Culpepper, A.S., Grey, T.L., Webster, T.M., Vencill, W.K., Sammons, R.D., Jiang, J.M., Preston, C., Leach, J.E. and Westra, P. 2010. Gene amplification confers glyphosate resistance in Amaranthus palmeri. Proceedings of the National Academy of Sciences, USA 107: 1029-1034.

    Powles, S.B. and Preston, C. 2006. Evolved glyphosate resistance in plants: biochemical and genetic basis of resistance. Weed Technology 20: 282-289.

    Lorraine-Colwill, D.F., Powles, S.B., Hawkes, T.R., Hollinshead, P.H., Warner, S.A.J. and Preston, C. 2002. Investigations into the mechanism of glyphosate resistance in Lolium rigidum. Pesticide Biochemistry and Physiology 74: 62-72.

    Preston, C., Tardif, F.J., Christopher, J.T. and Powles, S.B. 1996. Multiple resistance to dissimilar herbicide chemistries in a biotype of Lolium rigidum due to enhanced activity of several herbicide degrading enzymes. Pesticide Biochemistry and Physiology 54: 123-134.

    Wakelin, A.M., Lorraine‐Colwill, D.F. and Preston, C. 2004. Glyphosate resistance in four different populations of Lolium rigidum is associated with reduced translocation of glyphosate to meristematic zones. Weed Research 44: 453-459.

    Preston, C. and Powles, S.B. 2002. Evolution of herbicide resistance in weeds: initial frequency of target site-based resistance to acetolactate synthase-inhibiting herbicides in Lolium rigidum. Heredity 88: 8-13.

    Wakelin, A.M. and Preston, C. 2006. A target‐site mutation is present in a glyphosate‐resistant Lolium rigidum population. Weed Research 46: 432-440.

    Chauhan, B.S., Gill, G.S. and Preston, C. 2006. Tillage system effects on weed ecology, herbicide activity and persistence: a review. Australian Journal of Experimental Agriculture 46: 1557-1570.

    Lorraine-Colwill, D.F., Powles, S.B., Hawkes, T.R. and Preston, C. 2001. Inheritance of evolved glyphosate resistance in Lolium rigidum (Gaud.). Theoretical and Applied Genetics 102: 545-550.

    Christopher, J.T., Preston, C. and Powles, S.B. 1994. Malathion antagonizes metabolism-based chlorsulfuron resistance in Lolium rigidum. Pesticide Biochemistry and Physiology 49: 172-182.

    Rieger, M.A., Potter, T.D., Preston, C. and Powles, S.B. 2001. Hybridisation between Brassica napus L. and Raphanus raphanistrum L. under agronomic field conditions. Theoretical and Applied Genetics 103: 555-560.

    Chauhan, B.S., Gill, G. and Preston, C. 2006. Influence of tillage systems on vertical distribution, seedling recruitment and persistence of rigid ryegrass (Lolium rigidum) seed bank. Weed Science 54: 669-676.

    Preston, C., Wakelin, A.M., Dolman, F.C., Bostamam, Y. and Boutsalis, P. 2009. A decade of glyphosate-resistant Lolium around the World: mechanisms, genes, fitness, and agronomic management. Weed Science 57, 435-441.

    Preston, C. 2004. Herbicide resistance in weeds endowed by enhanced detoxification: complications for management. Weed Science 52: 448-453

    Preston, C. and Wakelin, A.M. 2008. Resistance to glyphosate from altered herbicide translocation patterns. Pest Management Science 64, 372-376.

    Gaines, T.A., Shaner, D.L., Ward, S.M., Leach, J.E., Preston, C. and Westra, P. 2011. Mechanism of resistance of evolved glyphosate-resistant Palmer amaranth (Amaranthus palmeri). Journal of Agricultural and Food Chemistry 59, 5886-5889.

    Preston, C., Belles, D.S., Westra, P.H., Nissen, S.J. and Ward, S.M.  2009.  Inheritance of resistance to the auxinic herbicide dicamba in kochia (Kochia scoparia).  Weed Science 57, 43-47.

    Ge, X., d'Avignon, D.A., Ackerman, J.J.H, Collavo, A., Sattin, M., Ostrander, E. L., Hall, E.L., Sammons, R.D., and Preston, C. 2012. Vacuolar glyphosate-sequestration correlates with glyphosate resistance in ryegrass (Lolium spp.) from Australia, South America and Europe: a 31P-NMR investigation. Journal of Agricultural and Food Chemistry 60: 1243-1250.

    Baker, J. and Preston, C. 2008. Canola (Brassica napus L.) seedbank declines rapidly in farmer-managed fields in South Australia. Australian Journal of Agricultural Research 59, 780-784.

    Gaines, T.A., Ward, S.M., Bukun, B., Preston, C., Leach, J.E. and Westra, P. 2012. Interspecific hybridization transfers a previously unknown glyphosate resistance mechanism in Amaranthus species. Evolutionary Applications 5: 29-38.

    Boutsalis, P., Gill, G.S. and Preston, C. 2012. Incidence of herbicide resistance in rigid ryegrass (Lolium rigidum) across south-eastern Australia. Weed Technology 26: 391-398.

    Malone, J.M., Boutsalis, P., Baker, J., and Preston, C. 2014. Distribution of herbicide‐resistant acetyl‐coenzyme A carboxylase alleles in Lolium rigidum across grain cropping areas of South Australia. Weed Research 54: 78-86.

    Boutsalis, P., Gill, G.S., and Preston, C. 2014. Control of rigid ryegrass in Australian wheat production with pyroxasulfone. Weed Technology 28: 332-339.

    Kleemann, S.G., Preston, C., and Gill, G. S. 2014. Influence of seeding system disturbance on preplant incorporated herbicide control of rigid ryegrass (Lolium rigidum) in wheat in Southern Australia. Weed Technology 28: 323-331.

    Malone, J.M., Morran, S., Shirley, N., Boutsalis, P. and Preston, C. 2015. EPSPS gene amplification in glyphosate‐resistant Bromus diandrus. Pest Management Science 72: 81-88.

    Preston, C. and Malone, J.M. 2014. Inheritance of resistance to 2, 4‐D and chlorsulfuron in a multiple‐resistant population of Sisymbrium orientale. Pest Management Science 71: 1523-1528.


  • Media Expertise

    CategoriesAgriculture & Farming
    ExpertiseCrop protection (weed management, herbicides, herbicide resistance); crop protection (resistance); weeds (management and control); Genetically modified crops
    NotesAlt phone: (08) 8303 8149
    Mobile0488 404 120

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Entry last updated: Sunday, 18 Nov 2018

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