Peer-Reviewed Publications:
34. Howe, M., Mason, C. J., Gratton, C., Keefover-Ring, K., Wallin, K., Yanchuk, A., Zhu, J., and K. F. Raffa. 2020. Direction and extent of tradeoffs between plant constitutive and inducible defenses vary across levels of biological organization. Okios (Published online 27 Apr 2020)
33. Simon, S., Tschaplinski, T. J., Leboldus, J., Keefover-Ring, K., Azeem, M., Jin-Gui Chen, J-G., Macaya-Sanz1, D. MacDonald, W. L., Muchero, W., Tuskan, G. A., and S. P. DiFazio. 2020. Host plant genetic control of associated fungal and insect species in a Populus hybrid. Ecology and Evolution (Published online 27 Apr 2020)
32. Feng, G., Sanderson, B. J., Keefover-Ring, K., Liu, J., Ma, T., Yin, T., Smart, L., DiFazio, S., and M. Olson. 2020. Pathways to sex determination in plants: How many roads lead to Rome? Current Opinion in Plant Biology 54:61–68
31. Kruger, E., Keefover-Ring, K., Holeski, L., R. L. Lindroth. 2020. To compete or defend: linking functional trait variation with life-history tradeoffs in a foundation tree species. Oecologia 192:893–907 (Published online 14 Feb 2020)
30. Wang, M., Zhang, L., Zhang Z., Li, M., Wang, D., Zhang, X., Xi, Z., Keefover-Ring, K., Smart, L. B., DiFazio, S., Olson, M. S., Yin, T., Liu, J., and T. Ma. 2020. Phylogenomics of the genus Populus reveals extensive interspecific gene flow and balancing selection. New Phytologist 225:1370-1382 (Published online 31 Oct 2019)
29. Moreira, X., Abdala-Roberts, L., Nell, C. S., Vázquez-González, C., Pratt, J. D., Keefover-Ring, K., and K. A. Mooney. 2019. Sexual and genotypic variation in terpene quantitative and qualitative profiles in the dioecious shrub Baccharis salicifolia. Scientific Reports 9, 14655 (Published online 10 Oct 2019)
28. Kolb, T., Keefover-Ring, K., Burr, S. J., Hofstetter, R., Gaylord, M., and K. F. Raffa. 2019. Drought-mediated changes in tree physiological processes weaken tree defenses to bark beetle attack. Journal of Chemical Ecology 45:888-900 (Published online 7 Sep 2019)
27. Thompson, J. D., Amiot, J., Borron, C., Linhart, Y. B., Keeefover-Ring, K., and P. Gauthier. 2019. Spatial heterogeneity of gall formation in relation to chemotype distribution in Thymus vulgaris. Plant Ecology 220:777-788 (Published online 5 Jul 2019)
26. Rehman, S., K. Keefover-Ring, Ihsan ul Haq, E. Dilshad, M. I. Khan, N. Akhtar, and B. Mirza. 2018. Drier climatic conditions increase withanolide content of Withania coagulans enhancing its inhibitory potential against human prostate cancer cells. Applied Biochemistry and Biotechnology (Published online 10 Dec 2018) PDF
25. Fang, L., H. Liu, S. Wei, K. Keefover-Ring, and T. Yin. 2018. High-density genetic map of Populus deltoides constructed by using specific length amplified fragment sequencing. Tree Genetics & Genomes 14: 79 (Published online 3 Oct 2018) PDF
24. Mason, C. J., K. Keefover-Ring, C. Villari, J. G. Klutsch, S. Cook, P. Bonello, N. Erbilgin, Raffa, and P. A. Townsend. 2018. Anatomical defenses against bark beetles relate to degree of 1 historical exposure between species and are allocated independently of chemical defenses within trees. Plant, Cell & Environment (Published online 22 Sep 2018) PDF
23. Falk, M.,R.L. Lindroth, K. Keefover-Ring, and K.F. Raffa. 2018. Genetic variation in aspen phytochemical patterns structures windows of opportunity for gypsy moth larvae. Oecologia 187: 471–482 (Published online 23 May 2018) - Featured in: Special Topic: From Plants to Herbivores PDF + Supplementary material
22. Howe M., K. Keefover-Ring, and K. F. Raffa. 2018. Pine engravers carry bacterial communities whose members reduce concentrations of host monoterpenes with variable degrees of redundancy, specificity, and capability. Environmental Entomology 47: 638–645 (Published online 16 Mar 2018) PDF
21. Rubert-Nason K., K. Keefover-Ring, and R. L. Lindroth. 2018. Purification and analysis of salicinoids. Current Analytical Chemistry 14: 423-429 (Published online Dec 2017) PDF
20. Trowbridge, A., K. Keefover-Ring. 2017. Home on the (expanding) range: evaluating the effectiveness of a novel host’s induced defenses against the mountain pine beetle-fungal complex. Invited commentary. Tree Physiology 37: 1593-1596 (Published online 26 Sep 2017) PDF
19. Mason, C. J., C. Villari, K. Keefover-Ring, S. Jagemann, J. Zhu, P. Bonello, and K. F. Raffa. 2017. Spatial and temporal components of induced plant responses in the context of herbivore life history and impact on host. Functional Ecology 31: 2034–2050 (Published online 30 May 2017) PDF
18. Raffa, K. F., C. J. Mason, P. Bonello, S. Cook, N. Erbilgin, K. Keefover-Ring, J. G. Klutsch, C. Villari, and P. A. Townsend. 2017. Defense syndromes in lodgepole–whitebark pine ecosystems relate to degree of historical exposure to mountain pine beetles. Plant, Cell & Environment 40: 1791-1806 (Published online 24 May 2017) PDF
Cover photo for the issue by Phil Townsend
17. Keefover-Ring, K., K. Rubert-Nason, A.E. Bennett, and R.L. Lindroth. 2016. Growth and chemical responses of trembling aspen to simulated browsing and ungulate saliva. Journal of Plant Ecology 9: 474-484 (Published online 13 Nov 2015) PDF
16. Keefover-Ring, K., A. Trowbridge, C.J. Mason, and K.F. Raffa. 2016. Rapid induction of multiple terpenoid groups by ponderosa pine in response to bark beetle-associated fungi. Journal of Chemical Ecology 42: 1-12 (Published online 11 Dec 2015) PDF
Cover photo for the issue by Amy Trowbridge
15. Barnes, P.W, M.A. Tobler, K. Keefover-Ring, S.D. Flint, A.E. Barkley, R.J. Ryel, and R.L. Lindroth. 2016. Rapid modulation of UV-shielding in plants is influenced by solar UV radiation and linked to alterations in flavonoids. Plant, Cell & Environment 39: 222-230 (Published online 15 Jul 2015) PDF
14. Keefover-Ring, K. 2015. Bergamot versus beetle: evidence for intraspecific chemical specialization. AoB PLANTS 7: plv132 (Published online 16 Nov 2015) PDF
13. Linhart, Y.B., P. Gauthier, K. Keefover-Ring, and J.D. Thompson. 2015. Variable phytotoxic effects of Thymus vulgaris (Lamiaceae) terpenes upon associated species. International Journal of Plant Sciences 176: 20–30 (Published online 17 Dec 2014) PDF - Supplementary material
12. Keefover-Ring, K., M. Ahnlund, I. Nacif Abreu, S. Jansson, T. Moritz, and B.R. Albrectsen. 2014. No evidence of geographical structure of salicinoid chemotypes within Populus tremula. PLoS ONE 9: e107189 (Published online 9 Oct 2014) PDF
11. Keefover-Ring, K., L.M. Holeski, M.D. Bowers, A.D. Clauss, and R.L. Lindroth. 2014. Phenylpropanoid glycosides of Mimulus guttatus (yellow monkeyflower). Phytochemistry Letters 10: 132-139 (Published online 4 Sep 2014) PDF - Supplementary material
10. Pratt, J.D., K. Keefover-Ring, L.Y. Liu, and K.A. Mooney. 2014. Genetically based latitudinal variation in Artemisia californica secondary chemistry. Oikos 123: 953–963 (Published online 3 Apr 2014) PDF
9. Keefover-Ring, K., M. Carlsson, and B.R. Albrectsen. 2014. 2'-(Z)-Cinnamoylsalicortin: A novel salicinoid from Populus tremula. Phytochemistry Letters 7: 212-216 (Published online 13 Dec 2013) PDF
8. Boone, C.K., K. Keefover-Ring, A.C. Mapes, A.S. Adams, J. Bohlmann, and K.F. Raffa. 2013. Bacteria associated with a tree-killing insect reduce concentrations of plant defense compounds. Journal of Chemical Ecology 39: 1003–1006 (Published online 27 Jun 2013) - Featured in special issue: Microbial Chemical Ecology PDF
7. Holeski, L.M., K. Keefover-Ring, M.D. Bowers, Z.T. HarnEnz, and R.L. Lindroth. 2013. Patterns of phytochemical variation in Mimulus guttatus (yellow monkeyflower). Journal of Chemical Ecology 39: 525-536 (Published online 7 Mar 2013) PDF
6. Keefover-Ring K. 2013. Making scents of defense: do fecal shields and herbivore-caused volatiles match host plant chemical profiles? Chemoecology 23: 1-11 (Published online 13 Oct 2012) PDF
5. Keefover-Ring K. and Y.B. Linhart. 2010. Variable chemistry and herbivory in ponderosa pine cones. International Journal of Plant Sciences 171: 293-302 (Almost had the cover photo, see the mockup below) PDF
(Almost) Cover photo for the issue by Ken Keefover-Ring
4. Keefover-Ring K., J.D. Thompson, and Y.B. Linhart. 2009. Beyond six scents: defining a seventh Thymus vulgaris chemotype new to southern France by ethanol extraction. Flavour and Fragrance Journal 24: 117-122 (Published online 12 Feb 2009) PDF
3. Groendahl E., Ehlers, B.K., and K. Keefover-Ring. 2008. New cis-sabinene hydrate chemotype detected in large thyme (Thymus pulegioides L.) growing wild in Denmark. Journal of Essential Oil Research 20: 40-41 PDF
2. Thompson J.D., P. Gauthier , J. Amiot, B.K. Ehlers , C. Collin , V. Fossat J., Barrios , F. Arnaud-Miramont , K. Keefover-Ring, and Y.B. Linhart. 2007. Ongoing adaptation to Mediterranean climate extremes in a chemically polymorphic plant. Ecological Monographs 77: 421-439 PDF
1. Linhart Y.B., K. Keefover-Ring, K.A. Mooney, B. Breland , and J.D. Thompson. 2005. A chemical polymorphism in a multi-trophic setting: thyme monoterpene composition and food web structure. American Naturalist 166: 517-529 (Published online 5 Aug 2005) PDF
Non Peer-Reviewed Publications:
Keefover-Ring K. 2007. Prairies make good scents: Bee balm, a prairie native. The Shortgrass Prairie Review 3(3): 8-9 PDF
Keefover-Ring K. 2006. Monarda fistulosa: Making good scents in Colorado. Aquilegia 30(2): 3-4 PDF