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College of Arts and Sciences

Faculty and Staff

Johannes Stratmann

Title: Professor
Department: Biological Sciences
College of Arts and Sciences
Phone: 803-777-5084
Office: CLS, Room 407
Resources: Department of Biological Sciences
Lab Homepage


Life is dangerous ... especially for a plant that cannot simply run away to escape harmful environments. Plants are attacked by pests such as insects, nematodes, fungi, bacteria and viruses. Furthermore, they are exposed to abiotic forms of stress like drought, heat, cold, high salinity, and ultraviolet light. Unfavorable environmental conditions shift equilibria in ecosystems and result in enormous reductions in crop productivity. To cope with stress, plants have evolved remarkable defensive and protective strategies that allow them to develop into fertile organisms. Plant defense responses are continuously evolving in an evolutionary battle with pests, which in turn modify their invasive strategies to consume plants. This gave rise to an impressive arsenal of plant weapons. Many of the thousands of known plant secondary metabolites are thought to function in plant defense. To recognize danger and induce defenses, plants evolved a complex signaling network that responds to signals from the environment and regulates the synthesis of defense compounds. For more, please continue to read on my personal web site.


Stratmann J.W., Bequette C.J. (2016) Hairless but no longer clueless: understanding glandular trichome development. Journal of Experimental Botany 2016, 67:5285-5287;  doi: 10.1093/jxb/erw339

Krizek B.A., Bequette C.J., Xu K., Blakley I.C., Fu ZQ., Stratmann J.W., Loraine A.E. (2016) RNA-Seq Links the Transcription Factors AINTEGUMENTA and AINTEGUMENTA-LIKE6 to Cell Wall Remodeling and Plant Defense Pathways. Plant Physiology, 171:2069-2084; 

Hann, C.T, Bequette, C.J., Dombrowski, J.E., and Stratmann, J.W. (2014) Methanol and ethanol modulate responses to danger- and microbe-associated molecular patterns. Frontiers in Plant Science vol 5, Article 550; doi: 10.3389/fpls.2014.00550

Singh, D. K., Calviño, M., Brauer, E. K., Fernandez-Pozo, N., Strickler, S., Yalamanchili, R., Suzuki, H., Aoki, K., Shibata, D., Stratmann, J. W., Popescu, G. V., Mueller, L. A., and Popescu, S. C. (2014) The Tomato Kinome and the Tomato Kinase Library ORFeome: Novel Resources for the Study of Kinases and Signal Transduction in Tomato and Solanaceae Species. Molecular Plant-Microbe Interactions 27,1: 7-17 [PDF]

Delano-Frier, J.P., Pearce, G., Huffaker, A., and Stratmann, J.W. (2013) Systemic Wound Signaling in Plants. In “Long-Distance Systemic Signaling and Communication in Plants.”  František Baluška, ed.; Springer; ISBN: 978-3-642-36469-3; pp 323-362. [PDF]

Spoerner, M., Wichard, T., Bachhuber, T., Stratmann, J., and Oertel, W. (2012) Growth and thallus morphogenesis of Ulva mutabilis (Chlorophyta) depends on a combination of two bacterial species excreting regulatory factors. Journal of Phycology Vol 48,6: 1433–1447 [PDF]

Stratmann, J.W., and Gusmaroli, G. (2012). Many jobs for one good cop - The COP9 Signalosome guards development and defense. Plant Science. 185-186; 50 - 64. [PDF]

Stratmann, J.W. and Hind, S.R . (2011). Gene silencing goes viral and uncovers the private life of plants. Entomologia Experimentalis et Applicata. 140 (2), 91-102. [PDF]

Dombrowski J.E., Hind, S.R., Martin, R.C., and Stratmann, J.W. (2011). Wounding systemically activates a mitogen-activated protein kinase in forage and turf grasses. Plant Science. 180, 686–693. [PDF]

Hind S.R., Pulliam, S.E., Veronese, P., Shantharaj, D., Nazir, A., Jacobs, N.S., Stratmann, J.W. (2011). The COP9 signalosome controls jasmonic acid synthesis and plant responses to herbivory and pathogens. The Plant Journal. 65, 480–491. [PDF]

Degenhardt, D.C., Hind, S.R., Stratmann, J.W., and Lincoln, D.E. (2010). Systemin and jasmonic acid regulate constitutive and herbivore-induced systemic volatile emissions in tomato, Solanum lycopersicum. Phytochemistry. 71, 2024-2037. [PDF]

Kandoth P.K, Ranf S., Pancholi S.S, Jayanty S., Walla M.D., Miller W., Howe G..A, Lincoln D.E., Stratmann J.W. (2007) Tomato MAPKs LeMPK1, LeMPK2, and LeMPK3 function in the systemin-mediated defense response against herbivorous insects. PNAS: 104: 12205-12210; doi: 10.1073/pnas.0700344104

Holley, S.R., Yalamanchili, R.D., Moura, S.D., Ryan, C.A., and Stratmann, J.W. (2003) Convergence of signaling pathways induced by systemin, oligosaccharide elicitors, and ultraviolet-B radiation at the level of mitogen-activated protein kinases in Lycopersicon peruvianum suspension-cultured cells. Plant Physiology 132, 1728-1738; doi:

Stratmann, J.W. (2003) Ultraviolet-B radiation co-opts defense signaling pathways. Invited peer-reviewed Review for Trends in Plant Science. 8 (11), 526-533;

Stratmann, J.W. (2003) Long distance run in the wound response - jasmonic acid is pulling ahead. Trends in Plant Science 8 (6), 247-250;

Pearce, G., Moura, D. S., Stratmann, J. and Ryan, C.A. (2001). RALF, a 5-kDa ubiquitous polypeptide in plants, arrests root growth and development. PNAS 98: 12843-12847; 10.1073/pnas.201416998

Pearce, G., Moura, D., Stratmann, J. and Ryan, C. A. (2001) Production of multiple plant hormones from a single polyprotein precursor. Nature 411, 817-820. doi:10.1038/35081107

Stratmann, J. and Ryan, C.A. (1997) Myelin basic protein kinase activity in tomato leaves is induced systemically by wounding and increases in response to systemin and oligosaccharide elicitors. PNAS 94, 11085 – 11089; doi: 10.1073/pnas.94.20.11085