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Washington State University Molecular Plant Sciences

Assistant Professor, Department of Crop and Soil Sciences, 2003 Ph.D. University of California – Berkeley


Research Interests

Research themes in the Sanguinet lab focus on factors that modulate growth and development. We study the root architecture of the Pooideae subfamily of temperate grasses using developmental, genetic and genomics approaches. Through characterization and analysis of a suite of root mutants and natural accessions in Brachypodium distachyon, we hope to gain insight into the quantitative and qualitative control of homorhizic root architecture typical of the grasses. We are also interested in understanding the link between hormonal crosstalk and how the cell wall constrains morphogenesis.


(f/k/a Osmont, Karen S) Handakumbura, P.P., D.A. Matos, K.S. Osmont, M.J. Harrington, K. Heo, K. Kafle, S.H. Kim, T.I. Baskin, and S.P. Hazen (2013): Perturbation of Brachypodium distachyon CELLULOSE SYNTHASE A4 or 7 results in abnormal cell walls. BMC Plant Biology, 13: 131.

Sankar, M., K.S. Osmont, J. Rolcik, B. Gujas, D. Tarkowska, M. Strnad, I. Xenarios, and C.S. Hardtke (2011): A qualitative continuous model of cellular auxin and brassinosteroid signaling and their crosstalk. Bioinformatics, 27(10): 1404-1412.

Jun, J.H., E. Fiume, A. Roeder, L. Meng, V.K. Sharma, K.S Osmont, C. Baker, C.M. Ha, E.M. Meyerowitz, L.J. Feldman, and J.C. Fletcher (2010): Comprehensive analysis of CLE gene expression and over-expression activity in Arabidopsis. Plant Physiology, 154: 1721-1736.

Scacchi, E.*, K.S. Osmont*, J. Beuchat, P. Salinas, M. Navarrete-Gómez, M. Trigueros, C. Ferrándiz, and C.S. Hardtke (2009): Dynamic, auxin-responsive plasma membrane to nucleus movement of Arabidopsis BRX. Development, Vol. 136: pp. 2059-2067. *-equal contributions

Rodrigues, A., J. Santiago, S. Rubio, A. Saez, K.S. Osmont, J. Gadea, C.S. Hardtke, P.L. Rodriguez (2009): The Short-Rooted Phenotype of the brevis radix Mutant Partly Reflects Root Abscisic Acid Hypersensitivity. Plant Physiology, 149: 1917-28.

Osmont, K.S. and C.S. Hardtke (2008): The topless plant developmental phenotype explained! Genome Biology, 9:219.

Hardtke, C.S., E. Dorcey, K.S. Osmont, and R. Sibout (2007): Phytohormone collaboration: zooming in on auxin-brassinosteroid interactions. Trends in Cell Biology, Vol. 17: pp. 485-492.

Osmont, K.S., R. Sibout, and C.S. Hardtke (2007): Hidden Branches: Developments in Root System Architecture. Annual Review of Plant Biology, Vol. 58: pp. 93-113.

Mouchel, C.F., K.S. Osmont, and C.S. Hardtke (2006): BRX mediates feedback between brassinosteroid levels and auxin signalling in root growth. Nature, Vol. 443: pp. 458-461.

Briggs, G.C., K.S. Osmont, C. Shindo, R. Sibout, and C.S. Hardtke (2006): Unequal genetic redundancies in Arabidopsis – a neglected phenomenon? Trends in Plant Sciences, Vol. 11: pp. 492-498.

Osmont, K.S., N. Sadeghian, and M Freeling (2006): Mosaic analysis of extended auricle1 (eta1) suggests that a two-way signaling pathway is involved in positioning the blade/sheath boundary in Zea mays. Developmental Biology, Vol. 295: pp. 1-12.