Entomology and Plant Pathology

B.S., Biological Sciences, Pontificia Universidad Catolica del Ecuador, 1999 Ph.D., Plant Pathology , Pennsylvania State University, 2004 carla.garzon@okstate.edu

Teaching:

Research:

1. Population genetics and microbial epidemiology:
   • Cotton root rot (Phymatotrichum omnivorum) - [1]
   • Sclerotinia blight of peanut (Sclerotinia minor) - [2]
   • Cotton pre-emergence damping-off (Pythium aphanidermatum)

2. Effects of the exposure to low doses of antimicrobial agents on the virulence of oomycetes and fungi. - [3,4,5,6]

3. Microbial communities and suppression of Phytophthora infestans in Andean soils - [7,8,9]

4. Functional genomics of plant-pathogen interactions:
   • Gossypium hirsutum L. --- Pythium aphanidermatum - [1]
   • Arachis hypogaea L. --- Sclerotinia minor - [10]
   • Phytophthora infestans species complex --- host plants - [11]

Undergraduate students interested in gaining experience in research and/or scientific writing are encouraged to apply to join my lab as undergraduate research assistants.

Research opportunities:

• Undergraduate research program
• Graduate programs and research assistantship opportunities
• DASNR's International Visiting Scholars program

Scientific collaborators:

1. Dr. Steve Marek, Oklahoma State University
2. Dr. Hassan Melouk, USDA
3. Dr. Maria del Mar Jimenez-Gasco, Pennsylvania State University
4. Dr. Gary Moorman, Pennsylvania State University
5. Ing. Jeniffer Yanez, M.Ag.
6. Dr. Julio Molineros, Oklahoma Medical Research Foundation
7. Alma Koch M.S., Escuela Politecnica del Ejercito Ecuatoriano
8. Dr. Soledad Benitez, Ohio State University
9. Dr. Gregory Forbes, International Potato Center
10. Dr. Niran Jambunathan, Oklahoma State University
11. Dr. Sophien Kamoun, The Sainsbury Laboratory

Scientific Affiliations:

Publications:

Jimenez-Gasco, M., Berbegal, M., Yánez, J., Garzon, C., Armengol, J., Jimenez-Diaz, R.M. 2008. New polymorphic markers for analysis of genetic diversity in Verticillium dahliae populations. Phytopathology 98:S75

Knapp, K. D., Garzón, C.D., Killian, S.B. 2008. The Antimicrobial Effects of Garlic Oil (GO) and the Organosulpha-compounds (OSC) Diallyl Monosulphide (DS), Diallyl Disulphide (DDS) and Diallyl Trisulphide (DTS) against Planktonic Methicillin-Resistant Staphylococcus aureus (MRSA) and MRSA Biofilms. 108th General Meeting of the American Society for Microbiology 08-GM-A-2455-ASM

Garzón, C.D., Yánez, J. M., Moorman, G.W. 2007. Pythium cryptoirregulare, a new species within the P. irregulare complex. Mycologia, 99 (2):291-301.

Garzón, C. D., Oliva, R., Coffey, M. D., Kamoun, S. 2007. Evolution of RXLR effector proteins in the Phytophthora infestans species complex. Phytopathology 97 (7): S39-S39.

Tan, Q., C. P. Romaine, C. Schlagnhaufer, M. J. Chen, Q. Guo, J. Geml, and C. Garzón. 2006. DNA fingerprinting of six Pleurotus nebrodensis strains cultivated commercially in China. Acta Edulis Fungi 13:20-23.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2005. Analysis of AFLP and ITS sequence variation reveals a cryptic species boundary within Pythium irregulare. Phytopathology 95: 1489-1498.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2005. Diagnosis and population analysis of Pythium species using AFLP fingerprinting. Plant Disease. 89:81-89.

Oyarzún P.J., Garzón C.D., Leon D., Andrade I., Forbes G.A., 2005. Incidence of Potato Tuber Blight in Ecuador. American Journal of Potato Research. 82 (2): 117-122.

Garzón, C.D., Yánez, J.M., Moorman, G.W. 2005. Pythium cryptoirregulare, a new species within the Pythium irregulare Buis. complex. American Phytopathological Society, 2005 North Eastern Division Meeting, Geneva, NY.

Garzón, C.D., J. E. Molineros, and G. W. Moorman. 2004. Effects of sub-lethal fungicide doses on the incidence of post-emergence damping-off of seedlings caused by Pythium. Phytopathology 94:S33.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2004. Moderate genetic differentiation in Pythium aphanidermatum. Phytophthora Molecular Genetics Network, New Orleans, LA.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2003. Population genetics studies of Pythium aphanidermatum and P. irregulare using AFLP markers. Phytopathology 93:S28.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2003. Population studies of Pythium species causing greenhouse diseases. 22nd Fungal Genetics Conference, Pacific Grove CA.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2002. AFLP fingerprinting and population genetics of Pythium species. Phytophthora Molecular Genetics Network, Pacific Grove, CA.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2002. Comparison of AFLP and ISSR genetic markers in the study of populations within Pythium species. Phytopathology 92:S28.

Garzón, C.D., Geiser, D.M., Moorman, G.W. 2001. Characterization of Pythium species using AFLPs. Phytopathology 91:S31.

Garzón, C.D. and Forbes, G.A. 1999. Suppression of Phytophthora infestans in six Ecuadorian Soils. Late blight: a threat to global food security. First International Meeting of the Global Initiative on Late Blight, GILB. Quito, Ecuador.

Trognitz, B., Garzón, C.D., Ramón, M.P., Chacón, G. 1999. Does S. phureja have R genes? Late blight: a threat to global food security. First International Meeting of the Global Initiative on Late Blight, GILB. Quito, Ecuador.

Extension publications:

Garzón, C. D. and Moorman, G. W. 2005. Pythium root rots in greenhouse crops: A Growing Interest. Pennsylvania Floral Industry Association (PFIA newsletter) Spring 2005. p. 4-5

Garzón, C. D. Training material on Phytophthora ramorum for first-responders. Pennsylvania, 2005.

Notas sobre Enfermedades de Plantas. 2005. Translation to Spanish of "Plant Disease Fact Sheets", by G. W. Morman.

Garzón, C. D. and Moorman, G. W. 2005. Pythium Root Rots in Greenhouse Crops. Pennsylvania Floral Industry Association (PFIA) Research Report.

Burbuja Seca Causada por Verticillium. Translation to Spanish of Verticillium dry bubble, by D.M. Beyer, P.J. Wuest, and J.J. Kremser.