Lance Cadle-Davidson
Adjunct Assistant Professor

Address, Phone, Fax

E-Mail: led8@cornell.edu

2003 PhD, Plant Pathology, Cornell University

Division of Effort
Research - 100%, Genomics and pathogenesis of fungal diseases of grapevine.

Complete CV – html | pdf

My research program addresses pathogenesis of economically important fungal pathogens of grapevine.  The main pathosystems we focus on involve Botrytis cinerea and Uncinula necator (powdery mildew), the necrotrophic rotter and the stealthy biotroph, respectively.  Our goal is to use genetic, genomic, proteomic, and epidemiological approaches to decipher the molecular requirements for compatibility.  We are aided in this pursuit by temporal incompatibility in the fruit for both pathogens: Botytis infects early but waits quiescently while the immature fruit develops until a certain point late in fruit development when it is finally able to flex its pathogenic muscles and destroy the fruit; Uncinula infects early, causes symptoms early, and then at a very specific time in fruit development is neither able to colonize the host any further nor initiate new infections.

We are also developing publicly available tools for studying both the pathogen and the host.  These include systems for global expression analysis and random mutagenesis libraries.   In addition, we aim to utilize the natural variation contained in the PGRU Vitis germplasm collection to identify novel sources of resistance to a wide array of fungal pathogens.

Professional Societies
American Phytopathological Society

Refereed journal articles

Cadle-Davidson, L., Sorrells, M.E., Gray, S.M., and Bergstrom, G.C. 2006. Evaluation of resistance to Wheat spindle streak mosaic virus by analysis of disease incidence data.  Plant Disease 90: 1045-1050.

Cadle-Davidson, L., Sorrells, M.E., Gray, S.M., and Bergstrom, G.C. 2006. Evaluation of resistance to Soilborne wheat mosaic virus by analysis of disease incidence data.  Plant Disease 90: 1039-1044.

Cadle-Davidson, L. and Gray, S. M. 2006. Soilborne wheat mosaic virus. Online. The Plant Health Instructor, DOI: 10.1094/PHI-I-2006-0424-01.

Cadle-Davidson, L., Bergstrom, G. C., and Cox, T. S. 2005. Susceptibility of perennial small grains to Soilborne wheat mosaic virus and Wheat spindle streak mosaic virus. Plant Health Progress doi:10.1094/PHP-2005-1130-01-BR.

Cadle-Davidson, L. and Bergstrom, G.C. 2004. The effects of post-planting environment on the incidence of soilborne viral diseases in winter cereals.  Phytopathology 94: 527-534. 

Cadle-Davidson, L., Schindelbeck, R.R, van Es, H.M., and Bergstrom, G.C. 2003.  Using air pressure cells to evaluate the effect of soil environment on transmission of soilborne viruses of wheat. Phytopathology 93:1131-1136.

Cadle-Davidson, L., Cadle-Davidson, M.M., Gray, S.M., and Bergstrom, G.C.  A plant virus replicates in a saprophytic protozoan.  In prep.

Cadle-Davidson, L.  Detection of quiescent infections and quantification of colonization of Botrytis cinerea in developing grape berries reveals host genotype dependent timing of activation.  In prep.

Gee, C. T., Thannhauser, T., and Cadle-Davidson, L.  Proteomic analysis of early berry development in Vitis cinerea.  In prep.

Cadle-Davidson, L.  Variation in resistance to grape powdery mildew (Uncinula necator) within and among Vitis species.  In prep.

Cadle-Davidson, L. EMS chemical mutagenesis of Vitis vinifera ‘Chardonnay’ for induction of clonal variation and disease resistance.  In prep.

Technical publications

Cadle-Davidson, L., and Bergstrom, G.C. 2004.  Chemical seed treatment for the control of soilborne viruses in laboratory soil cores and in New York fields, 2002-3.  Fungicide & Nematicide Tests 59:ST001.

Abstracts of presentations at professional meetings

Cadle-Davidson, L. 2006. Forward and reverse genetic screens for resistance to powdery mildew and downy mildew of grapevine.  Phytopathology 95:S.

Cadle-Davidson, L. 2006. Cellular phenotypes of prehaustorial, hypersensitive, and ontogenic resistance against grapevine powdery mildew on developing leaves.  Phytopathology 95:S.

Gee, C. T., Gadoury, D. M., and Cadle-Davidson, L. 2006. Investigating the molecular basis of grape ontogenic resistance by applying epidemiological and proteomic techniques.  Phytopathology 95:S

Cadle-Davidson, L., Cadle-Davidson, M. M., Cousins, P., Garris, A. and Owens, C. L.  2006. Novel methods and techniques for genetic improvement of grape (Vitis). ASPB: Plant Biology 2006.

Cadle-Davidson, L. 2005.  Botrytis quiescence and activation.  International Grape Genomics Symposium, St. Louis, MO.

Cadle-Davidson, L. 2005.  Detection of Botrytis quiescence and activation in developing grape berries using real-time PCR.  International Congress on Molecular Plant-Microbe Interactions.

Gee, C.T., Gadoury, D.M., and Cadle-Davidson, L. 2005. Variation in ontogenic resistance against Uncinula necator in the USDA-ARS, PGRU Vitis germplasm collection.  Northeastern Division APS, Geneva, NY.

Wakefield, L.M., Cadle-Davidson, L., Gadoury, D.M., Seem, R, and Dry, I. 2005. Differential gene expression during spore production in Uncinula necator.  Phytopathology 95:S101.

Gee, C.T., Gadoury, D.M., and Cadle-Davidson, L. 2004. Variation in the timing of ontogenic resistance against Uncinula necator in the USDA-ARS, PGRU Vitis germplasm collection.  Northeastern Division APS, State College, PA.

Gadoury, D. M., Wakefield, L.M., Seem, R.C., Cadle-Davidson, L., and Dry, I.B. 2004. Preliminary studies of signaling and sporulation in Uncinula necator. Phytopathology 94:S33.

Book chapters and reviews

Rubies-Autonell, C., Davidson, L.E., Bergstrom, G.C., and Vallega, V. 2004. Wheat spindle streak mosaic virus on Triticum durum. p. 613-614. In Viruses and Virus Diseases of the Poaceae (Gramineae). ed. Lapierre, H. and Signoret, P. INRA editions.

Sohn, A., Signoret, P.A., Davidson, L.E., and Bergstrom, G.C. 2004. Wheat spindle streak mosaic virus on Triticum aestivum. p. 597-599. In Viruses and Virus Diseases of the Poaceae (Gramineae). ed. Lapierre, H. and Signoret, P. INRA editions.

Davidson, L.E., Bergstrom, G.C., Huth, W., and Bonnefoy, M. 2004. Wheat spindle streak mosaic virus on Secale cereale. p. 542. In Viruses and Virus Diseases of the Poaceae (Gramineae).  ed. Lapierre, H. and Signoret, P. INRA editions.

Davidson, L.E., Bergstrom, G.C., Huth, W., and Bonnefoy, M. 2004. Wheat spindle streak mosaic virus on Triticosecale. p. 616. In Viruses and Virus Diseases of the Poaceae (Gramineae). ed. Lapierre, H. and Signoret, P. INRA editions.