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Jeffrey K. Stone

Jeff Stone

Research Professor,

Ph.D. 1986, University of Oregon, Eugene


Office/Lab: Cordley 1084/1085
Phone: 541-737-5260/5242

Research Area

Mycology, ecology and systematics of fungal endophytes; taxonomy, ecology and infection biology of fungal parasites of conifers and other woody hosts; taxonomy and systematics of microascomycetes and asexual, conidial fungi.

Description of Research

Mycology, ecology and evolutionary biology of fungal parasites of conifers. We are using various molecular and traditional methods to infer speciation patterns among species and genera of ascomycetes and their conifer hosts. We use phylogenetic analyses to determine low host shifts, cospeciation, host specialization patterns and losses of sexual states have contributed to speciation in parasitic fungi. We are investigating f actors affecting the distribution of a foliar fungal pathogen of Douglas-fir, its infection biology and epidemiology, p opulation genetics, and its effect on carbon dioxide flux in multiple-aged forests.  We are also investigating the histopathology of the sudden oak death pathogen, Phytophthora ramorum , in different hosts and tissue types, and developing an in situ PCR based method for detection of P. ramorum in host tissue.

Research Group Members

Graduate Students

Zolton Bair (rotation) (MS expected 2015)
Patrick Bennet (MS expected 2017)


BOT 415/515 Forest Insect and Disease Management

BOT 556 Plant Pathogenic Fungi


Stone, J. K., P. M. Severns and N. Miller. 2011. Pyrenopeziza plantaginis new to North America.  North American Fungi 6(6):1-6.

Watt, M. S.,  Stone, J. K., Hood, I. A., and L. Manning.  2011.  Using a climatic niche model to predict the direct and indirect impacts of climate change on distribution of Douglas-fir.  Global Change Biology 17:3608-3619.

Watt, M. S., Stone, J. K., Hood, I. A. and Palmer D. J. 2010. Predicting the severity of Swiss needle cast on Douglas-fir under current and future climate in New Zealand. Forest Ecology and Management 260:2232-2240.

Black, B. A. , Shaw D. C., Stone, J. K.  2010. Impacts of Swiss needle cast on overstory Douglas-fir forests of the western Oregon Coast Range.  Forest Ecology and Management 259:1673-1680.

McCune, B., Stone J. K.  2009.  Leightoniomyces phillipsii, a synnematous, soil-dwelling hyphomycete new to North America.  North American Fungi 4:1-4

De Silva, H., L. Castlebury, S. Greene, and J. K. Stone.  2009.  Characterization and phylogenetic relationships of Anisogramma virgultorum and A. anomala in the Diaporthales (Ascomycota).  Mycological Research.113: 73-81.B

Beck, K. G. K. Zimmerman, J. D. Schardt, J. Stone, R. R. Lukens, S. Reichard, J. Randall, A. A. Cangelosi, D. Cooper, and J. P. Thompson.  2008.  Invasive species definition clarification and guidance white paper.  Invasive Plant Science and Management 1: 414-421.B

Stone J. K., L. B. Coop, and Daniel K. Manter2008.  Predicting effects of climate change on Swiss needle cast disease severity in Pacific Northwest forests.  Canadian Journal of Plant Pathology 30:169-176. A

Stone, J. K., B. Capitano and J. L. Kerrigan.  2008.    Histopathology of Phaeocryptopus gaeumannii on Douglas-fir needles.  Mycologia.100:431-444.A

Stone, J. K., I. A. Hood, M. S. Watt,,  J. L. Kerrigan. 2007.  Distribution of Swiss needle cast in New Zealand in relation to winter temperature.  Australasian Plant Pathology: 36: 445-454.A

Winton. L. M., J. K. Stone, and E. M. Hansen.  2007.  The systematic position of Phaeocryptopus gaeumannnii.  Mycologia.99:240-252. A

Winton, L. M., J. K. Stone, and E. M. Hansen.  2007. Polymorphic microsatellite markers for the Douglas-fir pathogen Phaeocryptopus gaeumannii, causal agent of Swiss Needle Cast disease.  Molecular Ecology Notes 7:1125-1128.A

Stone, J. K., P. W. Reeser, and A. Kanaskie. 2007.  Fungicidal Supression of Swiss Needle Cast and Pathogen Reinvasion in a 20-Year-Old Douglas-Fir Stand.  Western Journal of Applied Forestry 22:248-252.A

Valentine, Beth A., G. H. Taylor, J. K. Stone, R. R. Halse.  2006.  Equine Cutaneous Fungal Granuloma: A Study of 44 Lesions From 34 Horses.  Veterinary Dermatology 17:266-272. B

Winton, L. M., J. K. Stone, and E. M. Hansen.  2006.  Population structure suggests reproductively isolated lineages of Phaeocryptopus gaeumannii.  Mycologia  98:781-791. A

Watrud, L. S., K. Martin, K. Donegan, J. K. Stone, and G. Coleman.  2006.  Comparison of taxonomic, colony morphotype, and PCR-RFLP methods to characterize microfungal diversity.  Mycologia 98: 384-392. A

Ellison, A.M., M. S. Bank,  B. D. Clinton, B. A. Colburn, K. Elliott, C. R. Ford, D. R. Foster, B. D. Kloeppel, J. R. Knoepp, G. M. Lovett, J. Mohan, D. A. Orwig, N. L. Rodenhouse, W. V. Sobczak, K. A. Stinson, P. Snow, J. K. Stone, C. M. Swan,  J. Thompson, B. Von Holle, and J. R. Webster.  2005.  Loss of foundation species: consequences for the structure and dynamics of forested ecosystems.  Frontiers in Ecology and the Environment 3:479-486.A

Manter, D. K., P. W. Reeser and J. K. Stone. 2005.  A climate based model for predicting geographic variation in Swiss needle cast severity in the Oregon Coast Range.  Phytopathology 95:1256-1265.A

Stone, J. K. and D. S. Gernandt . 2005. A reassessment of Hemiphacidium , Rhabdocline and Sarcotrochila (Hemiphacidieaceae). Mycotaxon 91: 115-126.

Hansen E. M. and J. K. Stone. 2005. Interactions of pathogens with plant communities. in: The Fungal Community, J. Dighton, P. Oudemans, and J White, (eds). Marcel Dekker , New York . (in press).

Stone, J. K., J. F. White, Jr., J. D. Polishook. 2004. Endophytic fungi. pp. 241-270. In: Measuring and Monitoring Biodiversity of Fungi. Inventory and monitoring methods. G. Mueller, G. Bills, M. Foster (eds.). Elsevier Academic Press, Boston, MA

Manter, D. K., Winton, L. M., Filip, G.M., and Stone, J. K. 2003. Assessment of Swiss needle cast disease: temporal and spatial investigations of fungal colonization and symptom severity. J. Phytopathology 151: 1-8

Manter, D. K., Bond, B. J., Kavanagh, K. L., Stone, J. K., and Filip, G. M. 2003. Modelling the impacts of the foliar pathogen, Phaeocryptopus gaeumannii , on Douglas-fir physiology: net canopy carbon assimilation, needle abscission and growth. Ecological Modelling 164: 211-226

Ortiz-GarcĂ­a, S., Gernandt, D. S., Stone, J. K., Johnston, P. R., Chapela, I. H., Salas-Lizana, R., Alvarez-Buylla, E. R. 2003. Phylogenetics of Lophodermium from pine. Mycologia 95: 846-859

Winton, L. M., D. K. Manter, J. K. Stone, E. M. Hansen. 2003. Comparison of biochemical, genetic, and visual methods to quantify Phaeocryptopus gaeumannii in Douglas-fir needles. Phytopathology 93:121-126