Office: 111 Weed Lab
Laboratory: 101 Weed Lab
I joined the faculty of BSPM in January 2016 after a 20-year career as a research plant physiologist for the USDA-ARS. I am interested in functional plant genomics and my research program encompasses applied projects on herbicide mode of action and evolution of resistance in weeds to more basic projects aiming to use genomic approaches to decipher traits imparting weediness (competition, cold and heat stress tolerance etc…). I am also interested in the relative contribution of each of the 3 wheat genomes to specific pathways associated with primary metabolism. My expertise in plant biochemistry and physiology as well as chemical ecology complements the efforts already in place in other groups at Colorado State University.
Honors and Distinctions:
President of the Phytochemical Society of North America, Treasurer of Phytochemical Society of North America and the International Weed Science Society, Associate editor of Weed Science and Pesticide Biochemistry and Physiology. Outstanding Research Award from Weed Science Society of America, 2015, Senior Research Scientist of the Year (MSA) from USDA-ARS, 2012, Early Career Outstanding Scientist Award from the Weed Science Society of America, 2006. Grodzinsky Award from the International Allelopathy Congress in 2008, Early Career Research Scientist of the Year (MSA) from USDA-ARS in 2001. Scientific refereed publications, 121; Other publications, 59.
Selected Recent Publications:
Herbicide Mode of Action and Mechanisms of Resistance
Carbonari, C., Latorre, D. O., Gomes, G. L. G. C., Velini, E. D., Owens, D. K., Pan, Z., and Dayan, F. E. Resistance to glufosinate is proportional to phosphinothricin acetyltransferase expression and activity in LibertyLink® and WideStrike® Cotton, Planta, in press.
Dayan, F. E., Owens, D. K., Corniani, N., Silva, F. M. L., Watson, S. B., Howell, J. and Shaner, D. L. 2015. Biochemical markers and enzyme assays for herbicide mode of action and resistance studies. Weed Science. 63, 23-63.
Ribeiro, D. N., Nandula, V. K., Dayan, F. E., Rimando, A. M., Duke, S. O., Reddy, K. N., and Shaw. D. R. 2015. Possible glyphosate resistance mechanisms in pitted morningglory (Ipomoea lacunosa), Journal of Agricultural and Food Chemistry, 63:23-63.
Salas, R. A., Scott, R. C., Dayan, F. E., and Burgos, N. R. 2015. EPSPS gene amplification in glyphosate-resistant in Italian ryegrass (Lolium perenne multiflorum) populations from Arkansas, United States. Journal of Agricultural and Food Chemistry, 63: 5885-5893.
Maroli, A. S., Nandula, V. K., Dayan, F. E., Duke, S. O., Gerard, P., Tharayil, N. 2015. Metabolic profiling and enzyme analyses indicate a potential role of antioxidant systems in complementing glyphosate resistance in an Amaranthus palmeri Journal of Agricultural and Food Chemistry, 63:9199-9209.
Ribeiro, N. D., Pan, Z., Duke, S. O., Nandula, V. K., Baldwin, B. S., Shaw, D. and Dayan, F. E. Involvement of facultative apomixis in inheritance of EPSPS gene amplification in glyphosate-resistant Amaranthus palmeri. Planta, 239:199-212.
Mentioned in http://www.producer.com/2014/07/identification-is-first-step-when-keeping-out-new-weeds/
Dayan, F. E., Owens, D. K., Tranel, P. J., Preston, C. and Duke, S. O. 2014. Evolution of resistance to phytoene desaturase and protoporphyrinogen oxidase inhibitors – State of knowledge. Pest Management Science, 70: 1358-1366.
Corniani, N., Velini, E. D., Silva, F. M. L., Nanayakkara, N. P. D., Witschel, M. and Dayan, F. E. Novel bioassay for the discovery of inhibitors of the 2-C-Methyl-d-erythritol 4-phosphate (MEP) and terpenoid pathways leading to carotenoid biosynthesis. PLoS ONE 9: e103704.
Garcia, A., Alarcon-Reverte, R., Watson, S. B., Abdallah, I., Dayan, F. E., Fischer, A. 2014. Concerted action of target-site mutations and high EPSPS activity in glyphosate-resistant junglerice (Echinochloa colona) from California. Pest Management Science, 71: 996-1007.
Salas, R. A., Dayan, F. E., Pan, Z., Watson, S., Dickson, J., Scott, R. C., and Burgos, N. EPSPS gene amplification in glyphosate-resistant Italian ryegrass (Lolium perenne ssp multiflorum) from Arkansas, USA. Pest Management Science, 68, 1223-1230.
Chemical Ecology and Natural Products
Killeen, D. P., Larsen, L., Dayan, F. E., Gordon, K. C., Perry, N. B. and van Klink, J. W. 2016. Nortriketones: Antimicrobial trimethylated acylphloroglucinols from mānuka (Leptospermum scoparium). Journal of Natural Products, in press.
Dayan, F. E., Owens, D. K., Watson, S. B., Asolkar, R. N. and Boddy, L. G. 2015. Sarmentine, a natural herbicide from Piper species with multiple herbicide mechanisms of action, Frontiers in Plant Science, 6. doi: 10.3389/fpls.2015.00222.
Trivella, A., Stawingoga, M., Dayan, F. E., Cantrell, C. L., Mazellier, P., Richard, C. 2015. Photolysis of natural β-triketonic herbicides in water. Water Research, 78:28–36.
Silva, F. M. L., Donega , M. A., Cerdeira, A. L., Corniani, N., Velini, E. D., Cantrell, C. L., Dayan, F. E., Coelho, M. N., Shea, K., Duke, S. O. 2014. Roots of the invasive species Carduus nutans and C. acanthoides L. produce large amounts of aplotaxene, a possible allelochemical. Journal of Chemical Ecology, 40:276-284.
Dayan, F. E. and Duke, S. O. 2014. Natural compounds as next generation herbicides. Plant Physiology, 166:1090-1105.
This article was selected as the lead article in this special issue of Plant Physiology
Owens, D. K., Nanayakkara, N. P. D. and Dayan, F. E. In planta mechanism of action of leptospermone: Impact of its physico-chemical properties on uptake, translocation, and metabolism. Journal of Chemical Ecology. 39: 262-270.
Uddin, M. R., Park, S. U., Dayan, F. E. and Pyon, J. Y. 2013. Herbicidal activity of formulated sorgoleone, a natural product of sorghum root exudate. Pesticide Management Science, 70:252-257.
Rimando, A. M., Pan, Z., Polashock, J., Dayan, F. E., Mizuno, C., Snook, M. E., Liu, C.-J., and Baerson, S. R. 2012. In planta production of the highly potent resveratrol analogue pterostilbene via stilbene synthase and O-methyltransferase co-expression. Plant Biotechnology Journal, 10, 269-283.
Dayan, F. E., Owens, D. K. and Duke, S. O. 2012. Rationale for a natural products approach to herbicide discovery. Pest Management Science, 68, 519-528.
Cantrell, C. L., Dayan, F. E. and Duke, S. O. 2012. Natural products as sources for new pesticides. Journal of Natural Products, 75, 1231-1242.