Associate Professor/Senior Research - Ecology of Plant-Associated Soil Microbes 

Mailing Address: 

Department of Crop and Soil Science
3017 Agricultural and Life Science Building
Oregon State University
Corvallis, OR 97331

Office: Agricultural and Life Science 3069
Phone: 541-737-8170
Fax: 541-737-5725
E-Mail:

Department Website: Department of Crop and Soil Science
Vita: Short

Education:

• B.S. in Biology, 1975, University of California-Santa Cruz
• Ph.D. in Botany and Plant Pathology, 1982, Oregon State University

Projects:

• Disease cycle and mechanism of pathogenesis by Phytophthora ramorum, the sudden oak death pathogen
• Movement of soil microorganisms with unsaturated flow (collaboration with Dragila)
• Epidemiology of Phytophthora species in horticultural nurseries
• Developing a systems approach for identifying sources of Phytophthora contamination in horticultural nurseries (collaboration with Grunwald)
• Understanding plant-soil-microbe relationships that affect plant parasitic weeds

 Graduate Students:

• Naoyuki Ochiai (Ph.D. student, Soil Science, began 2004) (co-advised by Dragila)
• Elizabeth Stamm (M.S. student, Botany and Plant Pathology, began Spring 2008)
• Sarah Shay (M.S. student, Botany and Plant Pathology, began Summer 2008)
• Alicia Leytem (M.S. student, Soil Science, began Fall 2009)

Lab Personnel:

• Joyce Eberhart, Senior Faculty Research Assistant
• Carrie Lewis, Faculty Research Assistant

Links:

• ORE00249 - W-2147 Managing Plant-Microbe Interactions in Soil to Promote Sustainable Agriculture
• Department of Botany and Plant Pathology faculty webpage 

Online Outreach:

• Parke, J. L., and S. Lucas. 2008. Sudden oak death and ramorum blight. The Plant Health Instructor. DOI: 10.1094/PHI-I-2008-0227-01
• Parke, J. L., Pscheidt, J., Regan, R., Hedberg, J. and Grunwald, N. 2008. Phytophthora Online Course: Training for Nursery Growers
• Parke, J., Frankel, S., Alexander, J., and Thomas, C. 2004. Phytophthora ramorum - Educate to Detect (PRED). A Powerpoint presentation with accompanying script.

Publications:

Collins, B., Parke, J. L., Lachenbruch, B., and Hansen, E. M. 2009. The effects of Phytophthora ramorum infection on hydraulic conductivity and tylosis formation in tanoak sapwood. Can. J. For. Res. 39:1766-1776.

Grünwald, N. et al.  2009. Standardizing the nomenclature for clonal lineages of the sudden oak death pathogen, Phytophthora ramorum. Phytopathology 99:792-795.

Parke, J. L., Grünwald, N., and Lewis, C. 2009. Tracing the path of pathogens. Digger 53(12): 43-51.

Parke, J. L., Oh, E., Voelker, S., Hansen, E.M., Buckles, G., and Lachenbruch, B. 2007. Phytophthora ramorum colonizes tanoak xylem and is associated with reduced stem water transport. Phytopathology 97:1558-1567.

Parke, J. L. and Lewis, C 2007. Root and stem infection of rhododendron from potting medium infested with Phytophthora ramorum. Plant Dis. 91:1265-1270.

Goheen, E. M., Hansen, E., Kanaskie, A., Osterbauer, N., Parke, J., Pscheidt, J., and Chastagner, G.  2006. Sudden oak death and Phytophthora ramorum: a guide for forest managers, Christmas tree growers, and forest-tree nursery operators in Oregon and Washington. Oregon State University Extension Publication EM 8877. 16 pp.

Hansen, E. M., Parke, J. L., and Sutton. W. 2005. Susceptibility of Oregon forest trees and shrubs to Phytophthora ramorum: a comparison of artificial inoculation and natural infection. Plant Dis. 89:63-70.

Parke, J., Psheidt, J. and Linderman, R. 2004. Phytophthora ramorum - a guide to Washington nurseries. Washington State Nursery and Landscape Association.

Parke, J. L. 2004. Phytophthora ramorum: a plant pathologist's perspective. Digger 48(5):36-42.

Parke, J. L., Linderman, R. G., Osterbauer, N. K., and Griesbach, J. A. 2004. Detection of Phytophthora ramorum blight in Oregon nurseries and completion of Koch’s Postulates on Pieris, Rhododendron, Viburnum, and Camellia. Plant Dis. 88:87. (Disease Note)

Parke, J., Pscheidt, J., and Linderman, R. 2003. Phytophthora ramorum: a guide for Oregon nurseries. 8 pp. OSU Extension Bulletin EM 8840, Oregon State University, Corvallis.

Miller, S. C. M., LiPuma, J. J., and Parke, J. L. 2002. Culture-based and non-growth-dependent detection of the Burkholderia cepacia complex in soil environments. Appl. Environ. Microbiol. 68:3750-3758.

Parke, J. L. and Gurian-Sherman, D. 2001. Diversity of the Burkholderia cepacia complex and implications for risk assessment of biological control strains. Annu. Rev. Phytopathology 39:225-258.

Heungens, K. and Parke, J. L. 2001. Postinfection biological control of Oomycete pathogens of pea by Burkholderia cepacia AMMDR1. Phytopathology 91:383-391.

Heungens, K. K. and Parke, J. L. 2000. Zoospore homing and infection events: effects of the biocontrol bacterium Burkholderia cepacia AMMDR1 on two oomycete pathogens of pea. Appl. Envir. Microbiol 66:5192-5200.

Parke, J. L. and Kaeppler, S. M. 2000. Effects of genetic differences among crop species and cultivars in the arbuscular mycorrhizal symbiosis. In: Arbuscular Mycorrhizas: Physiology and Function (Y. Kapulnik and D. Douds, Jr., eds.). Kluwer Academic Publishers, Dordrecht.

Kaeppler, S.M., Parke, J. L., Mueller, S. M., Senior, L., and Stuber, C., and Tracy, W. F. 2000. Variation among maize inbred lines and detection of quantitative trait loci for growth at low phosphorus and responsiveness to arbuscular mycorrhizal fungi. Crop Science 40:358-364.

Cho, D.-H., Yu, Y.-H., Ohh, S.-H., and Parke, J. L. 1998. Production and isolation of chlamydospores in Cylindrocarpon destructans causing root rot of Panax quiquefolium. J. Ginseng Res. 22:304-309.

Gilbert, G. S., Clayton, M. K., Handelsman, J. and Parke, J. L. 1996. Use of cluster and discriminant analyses to compare rhizosphere bacterial communities. Microbial Ecology 32:123-147.

King, E. B. and Parke, J. L. 1996. Population density of the biocontrol agent Burkholderia cepacia AMMMDR1 on four pea cultivars. Soil Biol. Biochem. 28:307-312.

Gilbert, G. S., Handelsman, J., and Parke, J. L. 1994. Root camouflage and disease control. Phytopathology 84:222-225.

Knoche, K. K., Parke, J. L., and Durbin, R.D. 1994. Relationship of Pseudomonas syringae pv. tabaci races to the rhizosphere of Wisconsin-grown tobacco. Plant Soil 158:91-97.

Bowers, J. H. and Parke, J. L. 1993. Colonization of pea (Pisum sativum L.) taproots by Pseudomonas fluorescens: effect of soil temperature and bacterial motility. Soil Biol. Biochem. 25:1693-1701.

Bowers, J. H. and Parke, J. L. 1993. Epidemiology of Pythium damping-off and Aphanomyces root rot of peas after seed treatment with bacterial agents for biological control. Phytopathology 83:1466-1473.

Gilbert, G. S., Parke, J. L., Clayton, M. K. and Handelsman, J. 1993. Effects of an introduced bacterium on bacterial communities on roots. Ecology 74:840-854.

King, E. B. and Parke, J. L. 1993. Biocontrol of Aphanomyces root rot and Pythium damping-off by Pseudomonas cepacia strain AMMD on four pea cultivars. Plant Dis. 77:1185-1188.

Harrison, H.C., Parke, J. L. et al. 1992. Ginseng. 4 pp. Alternative Field Crop Manual. UW-Extension.

Parke, J. L., and Grau, C. R. 1992. Aphanomyces. Pages 27-30 in: Methods in Research on Soilborne Phytopathogenic Fungi (L. L. Singleton, J. D. Mihail, and C. M. Rush. eds.). APS Press, St. Paul, MN

Parke, J. L., Rand, R. E., Joy, A. E., and King, E. B. 1991. Biological control of Aphanomyces root rot and Pythium damping-off of peas by application of Pseudomonas cepacia or Pseudomonas fluorescens applied to seed. Plant Dis. 75:987-992.

Darmono, T. W., Owen, M. L., and Parke, J. L. 1991. Isolation and pathogenicity of Phytophthora cactorum from forest and ginseng garden soils in Wisconsin. Plant Dis. 75:610-612.

Holub, E. B., Grau, C. R., and Parke, J. L. 1991. Evaluation of the formae specialis concept in Aphanomyces euteiches. Mycol. Res. 95:147-157.

Parke, J. L. 1991. Root colonization by indigenous and introduced microorganisms. Pages 33-42 in: The Rhizosphere and Plant Growth (D. L. Keister and P. B. Gregan, eds.). Kluwer Academic Publishers, Durdrecht, The Netherlands.

Darmono, T. W., and Parke, J. L. 1990. Chlamydospores of Phytophthora cactorum: their production, structure, and infectivity. Can. J. Bot. 68:640-645.

Gilbert, G. S., Handelsman, J., and Parke, J. L. 1990. Role of ammonia and calcium in lysis of zoospores of Phytophthora cactorum by Bacillus cereus strain UW85. Exper. Mycol. 14:1-8.

Muehlchen, A. M., Rand, R. E., and Parke, J. L. 1990. Evaluation of crucifer green manures for controlling Aphanomyces root rot of peas. Plant Dis. 74:651-654.

Parke, J. L. 1990. Population dynamics of Pseudomonas cepacia in the pea rhizosphere in relation to biocontrol of Pythium. Phytopathology 80:1307-1311.

Parke, J. L., Liddell, C. M., and Clayton, M. K. 1990. Relationship between soil mass adhering to pea taproots and recovery of Pseudomonas fluorescens from the rhizosphere. Soil Biol. Biochem. 22:495-499.

Parke, J. L., and Rand, R. E. 1990. Cultural control of Aphanomyces root rot of snap bean. Biol. Cult. Tests 5:8.

Handelsman, J. and Parke, J. L. 1989. Mechanisms in biocontrol of soil-borne plant pathogens. Pages 27-61. In: Plant-Microbe Interactions, Vol. 3. T. Kosuge and E. Nester, (eds.). McGraw-Hill, New York.

Liddell, C. M., and Parke, J. L. 1989. Enhanced colonization of pea taproots by a fluorescent pseudomonad biocontrol agent by water infiltration into soil. Phytopathology 79:1327-1332.

Parke, J. L., and Shotwell, K. M. 1989. Diseases of cultivated ginseng. University of Wisconsin-Madison Agr. Expt. Sta. Publ. #3465. 16 pp.

Parke, J. L, Moen, R., Rovira, A. D., Bowen, G. D. 1986. Soil water flow affects the rhizosphere distribution of a seed-borne biological control agent, Pseudomonas fluorescens. Soil Biol. Biochem. 18:583-588.

Parke, J. L., Linderman, R. G., and Trappe, J. M. 1984. Inoculum potential of ectomycorrhizal fungi in forest soils of southwest Oregon and northern California. For. Sci. 30:300-304.

Parke, J. L., Linderman, R. G., and Black, C. H. 1983. The role of ectomycorrhizae in drought tolerance of Douglas-fir seedlings. New Phytol. 95:83-95.

Parke, J. L., Linderman, R. G., and Trappe, J. M. 1983. Effect of root zone temperature on VA and ectomycorrhizae formation in disturbed and undisturbed forest soils of southwest Oregon. Can. J. For. Res. 13:657-665.

Parke, J. L., Linderman, R. G. and Trappe, J. M. 1983. Effect of forest organic matter on ecto- and VA mycorrhiza formation on Douglas-fir and western red cedar. Can. J. For. Res. 13:666-671.

Parke, J. L., and Linderman, R. G. 1980. Association of vesicular-arbuscular mycorrhizal fungi with the moss Funaria hygrometrica. Can. J. Bot. 58:1898-1904.

Patents:

Parke, J. L. 1993. Biological Inoculant Effective Against Aphanomyces. U.S. Issued Patent No. 5,244,658.

Parke, J. L. and Joy, A. E. 1994. Biological Inoculant Effective Against Alternaria. U.S. Issued Patent No. 5,360,606.

Parke, J. L., Clark, A. D., Regner, K. M. 2000. Biological Seed Treatment to Improve Emergence, Vigor, Uniformity and Yield of Sweet Corn. (U.S. Issued Patent No. 6,077,505)