Biological Sciences Faculty

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Biological Sciences Faculty — Dr. José de Ondarza

Associate Professor
Medical Technology/Cytotechnology Program Coordinator

I have always been facinated by the way cells communicate with each other, as well as how organisms adapt to their environment in their search for food. My current research and teaching interests intersect accordingly: I teach Microbiology (Bio 203) each semester, and (periodically) Medical Microbiology (Bio 406). My research interests focus on signal transduction cascades in eukaryotic microorganisms, particularly in Paramecium tetraurelia, and on the role of G-proteins in chemoresponse and swimming behavior of Paramecium. In a related project, I have investigated the effects of pyrethroid insecticides in the Paramecium model system. A third line of research concerns evaluating soil microbes in the Lake Champlain Basin for enzymes used in breaking down cellulose, xylan, and lignin.

Education

  • Ph.D. Physiology, Michigan State University, East Lansing Michigan, 1996
  • Certification in Secondary Education (Biology), Pennsylvania State University, University Park, Pennsylvania, 1989
  • M.S. Biology, Pennsylvania State University, University Park, Pennsylvania, 1988
  • B.S. Biology, Pennsylvania State University, University Park, Pennsylvania, 1986

Teaching Areas

Research Areas

  • Signal transduction cascades in eukaryotic microorganisms
  • Role of G-proteins in chemoresponse and swimming behavior of Paramecium
  • Effects of pyrethroid insecticides in the Paramecium model system
  • Evaluation of soil microbes in the Lake Champlain Basin for enzymes used in breaking down cellulose, xylan, and lignin
  • Analysis of bacterial pigments

Recent Publications

  • Signal transduction mechanisms in protozoa. Renaud, F.L., J. de Ondarza, P. Luporini, M.J. Marino and J. Van Houten. In: Cell signalling in prokaryotes and lower metazoa, Ian Fairweather, Editor, Kluwer Academic Publishers, 2004.
  • G-Protein Modulators Alter the Swimming Behavior and Calcium Influx of Paramecium tetraurelia. de Ondarza, J., Symington, S., Van Houten, J. and J.M. Clark. J. Euk. Microbiol. 50: 349-355, 2003.
  • A matter of taste: Investigating sensory modalities in the protozoan Paramecium. de Ondarza, J. and Elwess, N. The Science Teacher 69: 36-40, 2002.
  • Sodium, potassium-activated adenosine triphosphatase activity is impaired in the guinea pig pancreatic duct system in streptozotocin-induced diabetes. Hootman, S.R., J. Jones, R. Kapoor, K.-L. Nguyen, and J. de Ondarza. Biochemical and Biophysical Research Communications 243: 869-873, 1998.
  • Confocal microscopic analysis of intracellular pH regulation in guinea pig pancreatic ducts. de Ondarza, J. and S.R. Hootman. American Journal of Physiology 272: G124-G134, 1997.

Faculty Website

Contact José de Ondarza

Office: Hudson Hall 211
Phone: (518) 564-5156
Email: jose.deondarza@plattsburgh.edu