Okumoto, Sakiko individual record
Associate Professor
overview

The overall goal of my research is to understand how nitrogen (N), quantitatively the most important nutrient in crops, is managed in plants. Specifically, my research aims at how amino acids, one of the main forms of organic N in plant body, is transported. In order to study such mechanisms in detail, we have developed protein-based, fluorescent sensors that allow us to track amino acids in live cells. We utilize these sensors to discover novel molecular mechanisms that are involved in the regulation of amino acids. We are currently interrogating the processes in which amino acid exporters are involved in, using various genetic resources such as T-DNA insertion mutants and gene editing tools. We are also interested in developing novel sensors for other biologically important molecules.

education and training
selected publications
Academic Articles41
  • Castro-Rodrguez, V., Kleist, T. J., Gappel, N. M., Atanjaoui, F., Okumoto, S., Machado, M., ... Wudick, M. M. (2022). Sponging of glutamate at the outer plasma membrane surface reveals roles for glutamate in development.. Plant J. 109(3), 664-674.
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  • Fang, Z. T., Kapoor, R., Datta, A., & Okumoto, S. (2022). Tissue specific expression of UMAMIT amino acid transporters in wheat.. Sci Rep. 12(1), 348.
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  • Trovato, M., Funck, D., Forlani, G., Okumoto, S., & Amir, R. (2021). Editorial: Amino Acids in Plants: Regulation and Functions in Development and Stress Defense.. Front Plant Sci. 12, 772810.
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  • Besnard, J., Sonawala, U., Maharjan, B., Collakova, E., Finlayson, S. A., Pilot, G., McDowell, J., & Okumoto, S. (2020). Increased Expression of UMAMIT Amino Acid Transporters Results in Activation of Salicylic Acid Dependent Stress Response.. Front Plant Sci. 11, 606386.
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  • Shi, T., Joshi, V., Joshi, M., Vitha, S., Gibbs, H., Wang, K., & Okumoto, S. (2019). Broad-Spectrum Amino Acid Transporters ClAAP3 and ClAAP6 Expressed in Watermelon Fruits.. Int J Mol Sci. 20(23), 5855-5855.
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Chapters1
  • Price, M. B., & Okumoto, S. (2015). Amino acid export in plants.. Amino acids in higher plants. 298-314. CAB International.
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Conference Papers2
  • Hormann, F., Chauduri, B., Deuschle, K., Lager, I., Okumoto, S., Lalonde, S., & Frommer, W. (2007). Carb fluxomics in plants. PHOTOSYNTHESIS RESEARCH. 91(2-3), 258-258.
  • Dulla, C., Nguyen-Vu, B., Tani, H., Okumoto, S., Frommer, W., Reimer, R., & Huguenard, J. (2007). Real-time imaging of glutamate dynamics in the thalamic reticular nucleus during intrathalamic epileptiform oscillations. EPILEPSIA. 48, 262-263.
Repository Documents / Preprints1
  • Castro-Rodrguez, V., Kleist, T. J., Gappel, N. M., Atanjaoui, F., Okumoto, S., Machado, M., ... Wudick, M. M. (2020). Sponging of glutamate at the outer plasma membrane surface reveals roles for glutamate in development.
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Email
sokumoto@tamu.edu
First Name
Sakiko
Last Name
Okumoto
mailing address
Texas A&M University; Soil & Crop Science; 2474 TAMU
College Station, TX 77843-2474
USA