Powles, Stephen - University of Western Australia

研究领域

Professor Powles is leader of a multi-disciplinary research team focused on many different aspects of herbicide resistance evolution. Research extends from understanding the biochemical and molecular basis of resistance, elucidating the effect of resistance mutations on plant performance and simulation modelling, to agronomic research to manage resistance in cropping systems.

近期论文

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Gaines, T.A., Cripps, A., Powles, S.B. (2012) Evolved resistance to glyphosate in Junglerice (Echinochloa colona) from the tropical Ord River region in Australia. Weed Technology, 26, 480-484. Vila-Aiub, M.M., Balbi, M.C., Distefano, A.J., Fernandez, L., Esteban Hopp, Yu, Q., Powles, S.B. (2011) Glyphosate resistance in perennial Sorghum halepense (Johnsongrass), endowed by reduced glyphosate translocation and leaf uptake. Pest Management Science, 68, 430-436. Powles, S.B. (2010) Gene amplification delivers glyphosate-resistant weed evolution. Proceedings US National Academy of Sciences, 107, 955-956. Owen, M.J., Powles, S.B. (2010) Glyphosate-resistant rigid ryegrass (Lolium rigidum) populations in the Western Australian grain belt. Weed Technology, 24, 44-49. Busi, R., Powles, S.B. (2009) Evolution of glyphosate resistance in a Lolium rigidum population by glyphosate selection at sublethal doses. Heredity, 103, 318-325. Yu, Q., Abdallah, I., Han, H., Owen, M. Powles, S. (2009) Distinct non-target site mechanisms endowing resistance to glyphosate, ACCase and ALS-inhibiting herbicides in multiple herbicide resistant Lolium rigidum. Planta, 230, 713-723. Owen, M.J., Owen, R.K., Powles, S.B. 2009. A survey in the southern grain belt of Western Australia did not find Conyza spp resistant to glyphosate. Weed Technology, 23, 492-494. Vila-Aiub, M.M., Balbi, M.C., Gundel, P.E., Ghersa, C.M., Powles, S.B. (2007) Evolution of glyphosate-resistant Johnson grass (Sorghum halepense) in glyphosate-resistant soybeans. Weed Science, 55, 566-571. Yu, Q., Cairns, A., Powles, S.B. (2007) Glyphosate, paraquat and ACCase multiple herbicide resistance in a Lolium rigidum biotype. Planta, 225, 499-513. Pedersen, B. P., Neve, P., Andreasen, C., Powles, S.B. (2007) Ecological fitness of a glyphosate resistant Lolium rigidum population: Growth and seed production along a competition gradient. Basic & Applied Ecology, 8, 258-268 Neve, P., Sadler, J., Powles, S.B. (2004). Multiple herbicide resistance in a glyphosate- resistant rigid ryegrass (Lolium rigidum) population. Weed Science 52: 920-928. Neve, P., Diggle, A.J., Smith, F.P., Powles, S.B. (2003) Simulating evolution of glyphosate resistance in Lolium rigidum. I. Population biology of a rare resistance trait. Weed Research 43: 404-417. Neve, P, Diggle, A.J., Smith, F.P., Powles, S.B. (2003) Simulating evolution of glyphosate resistance in Lolium rigidum. II. Past, present and future glyphosate use in Australian cropping. Weed Research 43: 418-427. Powles, S.B. (2003) My View: Will glyphosate continue to aid world food production? Weed Science, 51: 471. Lorraine-Colwill, D.F., Powles, S.B., Hawkes, T.R., Hollinshead, P.H., Warner, S.A.J., Preston, C. (2003) Investigations into the mechanism of glyphosate resistance in Lolium rigidum. Pesticide Biochemistry and Physiology, 74, 62-72. Lorraine-Colwill, D.F., Powles, S.B., Hawkes T.T., Preston, C. (2001) Inheritance of evolved glyphosate resistance in Lolium rigidum. Theoretical & Applied Genetics. 102, 545-550. Lorraine-Colwill, DF., Hawkes, TR., Williams, PH., Warner, SJ., Sutton, PB., Powles, SB., Preston, C. (1999) Resistance to glyphosate in Lolium rigidum. Pesticide Science, 55, 486-503. Powles, S.B., Lorraine-Colwill, D.F., Dellow, J.J., Preston, C. (1998) Evolved Resistance to glyphosate in rigid ryegrass (Lolium rigidum) in Australia. Weed Science. 46, 604-607. Busi, R., Neve, P., Powles, S.B. (2013) Evolved polygenic herbicide resistance in Lolium rigidum by low-dose herbicide selection within standing genetic variation. Evolutionary Applications, 6, 231-242. Han, H., Yu, Q., Cawthray, G.R., Powles, S.B. (2013) Enhanced herbicide metabolism induced by 2,4-D in herbicide susceptible Lolium rigidum provides protection against diclofop-methyl. Pest Management Science, 69, 996-1000.