Positions:

1995-present	Lecturer, Division of Biological Sciences, University of California, Davis
1995-present	Adjunct Associate Professor, Sonoma State University
1994-present	Associate Research Biologist III, Bodega Marine Laboratory, University of California, Davis
1990-1994	Assistant Research Biologist IV, Bodega Marine Laboratory, University of California, Davis
1988-1990	Assistant Research Biologist III, Bodega Marine Laboratory, University of California, Davis
1986-1988	Assistant Research Biologist II, Bodega Marine Laboratory, University of California, Davis
1984-1986	Postdoctoral Fellow, National Institute of Health, Department of Obstetrics & Gynecology, School of Medicine, University of California, Davis

Distinctions:

1984	National Institute of Health Postdoctoral Fellowship, Reproductive Training Grant
1983	Best Student Paper Award, Annual American Fisheries Society Meeting

Research Interests:  Dr. Cherr’s laboratory investigates cell functioning during fertilization and early development in marine and estuarine organisms, and the effects of pollutants and environmental stressors.  The systems utilized in the laboratory include gametes and embryos from algae, molluscs, echinoderms, and fishes.  Since these systems exhibit temporally and mechanistically distinct cellular events during development, they can be used to discern the mode of action of pollutants at the subcellular levels.  A major emphasis is placed on the effects of pollutants on cytoskeletal dynamics, intracellular ion activities, and cell-extracellular matrix interactions during fertilization and development.  The laboratory is also involved in isolation and identification of pollutants in complex mixtures and investigates structure/function relationships of the pollutants using the above biological systems.  Dr. Cherr is Chair of the State of Washington Biomonitoring Science Advisory Board, and is on the State of California’s Marine Bioassay Protocol Review Committee.

Selected Publications:

• Yudin, A.I., G.N. Cherr, C.A. VandeVoort, and J.W. Overstreet. 1998. Rearrangement of the PH-20 protein on the surface of macaque spermatozoa following exposure to anti-PH-20 antibodies or binding to zona. Molecular Reproduction and Development 50:207-220.
• Clegg, J.S., K.R. Uhlinger, S.A. Jackson, G.N. Cherr, E. Rifkin, and C.S. Friedman. 1998. Induced thermotolerance and the heat shock protein-70 family in the Pacific oyster, Crassostrea gigas. Molecular Marine Biology and Biotechnology 7:21-30.
• Griffin F.J., M.C. Pillai, C.A. Vines, R. Yanagimachi, and G.N. Cherr. 1998. Effects of salinity on sperm motility, fertilization, and development in the Pacific herring, Clupea pallasi. Biological Bulletin 194:25-35.
• Middaugh, D.P., M.W. Shelton, C.L. McKenney Jr., G.N. Cherr, P.J. Chapman, and L.A. Courtney. 1998. Preliminary observations on responses of embryonic and larval Pacific herring, Clupea pallasi, to neutral fraction biodegradation products of weathered Alaska North Slope Oil. Archives Environmental Contamination and Toxicology 34:188-196.
• Cherr, G.N. 1998. The use of developing organisms for assessing contamination in the marine environment. In: Effects of Multiple Impacts on Ecosystems, J.J. Cech, B.W. Wilson and D.C. Crosby, eds. Lewis Publishers, Chelsea, MI.
• Shamseldin, A.A., J.S. Clegg, C.S. Friedman, G.N. Cherr, and M.C. Pillai. 1997. Induced thermotolerance in the Pacific oyster, Crassostrea gigas. Journal of Shellfish Research, 16:487-491.
• Garman, G.D., G.N. Cherr, and S.L. Anderson. 1997. Developmental abnormalities and DNA-protein crosslink induction in sea urchin embryos exposed to metals. Aquatic Toxicology 39:247-265.
• Meyers, A.S., A.I. Yudin, G.N Cherr, C.A. Vandevoort, D.G. Myles, P. Primakoff, and J.W. Overstreet. 1997. Hyaluronidase activity of macaque sperm assessed by an in vitro cumulus penetration assay. Molecular Reproduction and Development 46:392-400.
• Pillai, M.C., H. Blethrow, R.M. Higashi, C.A. Vines, and G.N. Cherr. 1997. Inhibition of the sea urchin sperm acrosome reaction by a lignin-derived macromolecule. Aquatic Toxicology 37:139-156.
• Cherr, G.N., S.A. Meyers, A.I. Yudin, C.A. VandeVoort, D.G. Myles, P. Primakoff, and J.W. Overstreet. 1996. The PH-20 protein in cynomolgus macaque spermatozoa: Identification of two different forms exhibiting hyaluronidase activity. Developmental Biology 175:142-153.
• Griffin, F.J., C. Vines, M.C. Pillai, R. Yanagimachi, and G.N. Cherr. 1996. Sperm Motility Initiation Factor (SMIF) is a minor component of the Pacific herring egg chorion. Development, Growth, and Differentiation 38:193-202.
• Olin, K.A.,G.N. Cherr, E. Rifkin, and C.L. Keen. 1996. The effects of some redox-active and reactive aldehydes on DNA-protein cross-links in vitro. Toxicology 110:1-8.
• Spagenberg, J.M. and G.N. Cherr. 1996. Developmental effects of barium in a marine bivalve (Mytilus californianus). Environmental Toxicology and Chemistry 15:1769-1774.
• Garman, G.D., M.C. Pillai, L.J. Goff, and G.N. Cherr. 1995. Nuclear events during early development in Macrocystis pyrifera gametophytes and the temporal effects of a marine contaminant. Marine Biology 121:355-362.
• Garman, G.D., M.C. Pillai, and G.N. Cherr. 1994. Inhibition of cellular events during algal gametophyte development: Effects of select metals and an aqueous petroleum waste. Aquatic Toxicology 28:127-144.
• Pillai, M.C., R. Yanagimachi, and G.N. Cherr. 1994. In vivo and in vitro initiation of sperm motility using fresh and cryopreserved gametes from Pacific herring, Clupea pallasi. Journal of Experimental Zoology 269:62-68.
• Cherr, G.N., T.W-M. Fan, M.C. Pillai, T. Shields, and R.M. Higashi. 1993. Electrophoretic separation, characterization, and quantification of biologically active lignin derived macromolecules. Analytical Biochemistry 214:521-527.
• Fan, T.W-M., R.M. Higashi, G.N. Cherr, and M.C. Pillai. 1992. Use of noninvasive NMR spectroscopy and imaging for assessing produced water effects on mussel reproduction. Pp. 403-414 in: Produced Water: Technological / Environmental Issues and Solutions, J.P. Ray and F.R. Englehardt, eds. Plenum Press, New York.