Scientists & Staff
Jessie A. Glaeser
Research Plant Pathologist
Biological and Environmental Influences on Forest Health and Productivity
One Gifford Pinchot Drive
Madison, Wisconsin 53726
Current Research• Decontamination protocols to prevent human transmission of Pseudogymnoascus destructans, the causal agent of white-nose syndrome of bats.
• Assessing temperature optima of forest fungi to predict their adaptability to climate change.
• Wood decay fungi and hazard tree assessment.
• Growth of wood decay fungi in wood-plastic composites.
• Identification and biosystematics of brown-rot wood decay fungi.
• Risk and pathway assessment for the introduction of exotic pathogens that could affect Hawaii's native forests.
Research Interests• Biology, ecology and management of invasive and native forest fungal pathogens.
• Effect of climate change on the distribution and adaptability of forest fungi.
• Decay colonization patterns of wood and the development of spalting patterns.
• Movement and establishment of invasive fungal species.
• White-nose syndrome of bats.
Past Research• The resolution of the Endothia and Cryphonectria controversy, including a reassessment and final taxonomic disposition of the chestnut blight pathogen, Cryphonectria parasitica.
• Biosystematics of Peronosclerospora species – potentially invasive pathogens of corn and sugar cane.
• Physiology of brown rot decay.
• The decomposition of forest products in landfills.
• The use of wood extractives for the control of wood decay fungi.
• Development of preventative and remedial mold treatments for building materials.
• Decay fungi and forest health - decay patterns of Lutz spruce in Alaska.
• Pest risk assessments of importing pine and eucalyptus logs and wood chips from Australia.
• Fungal biodiversity and climate change.
• Assessment of the distribution of Heterobasidion irregulare in the Upper Midwest (USA).
Why This Research is ImportantCertain fungi are pathogenic to trees and forest wildlife, causing losses in forest ecosystems and forest productivity. Under ordinary conditions, forests are well suited to survive and thrive, even when exposed to organisms that cause disease or to episodes of environmental stress. The introduction of invasive pathogens, for which native organisms have no inherent genetic resistance, can result in massive loss of productivity and devastation to forest ecosystems. Invasive species are often introduced from other countries or from other ecosystems within the US. A thorough study of pathways associated with the introduction of potentially invasive insects and pathogens is needed to prevent tree death and decline.
Fungi are also the main decomposers of wood and leaf litter – these fungi are termed “saprotrophs.” Decayed wood and leaves contribute to soil organic matter, and hence directly to soil carbon sequestration. Decay products also indirectly contribute to carbon sequestration through positive effects on soil fertility and forest productivity. In most forests, the impact of forest management on the populations and functions of these pathogenic and nutrient-cycling fungi is unknown. Accurate identification of the fungal species involved, their relationships, and their biological activity are required to understand and assess the impacts of forest management practices, invasive species, and global climate change on forest health and productivity.The fungi associated with urban forests also need to be characterized.This knowledge is beneficial to arborists who must perform hazard tree assessments.
Pseudogymnoascus destructans, the causal agent of White Nose Syndrome, has killed over 6 million bats in eastern North America since the disease was first observed in 2006. Bats are a critical component of the ecosystem, primarily because of their impact on insect populations. One possible mode of pathogen transmission is human-mediated movement among hibernacula (caves and mines) – e.g., on the shoes, clothes and equipment of tourists and the caving community. Efficient and inexpensive protocols are necessary for cave visitors to clean their clothing and equipment to prevent transmission of this devastating pathogen.
- Virginia Polytechnic Institute and State University, Ph.D. Plant Pathology., 1985
- Delaware Valley College of Science and Agriculture, Doylestown, PA., B.S. Agronomy., 1979
- Research Plant Pathologist/Supervisory Plant Pathologist U.S. Forest Service, Forest Products Laboratory/Northern Research Station, Madison, WI
1985 - Current
Studies the biosystematics, ecology and physiology of forest fungal pathogens and saprotrophs.
- Post-doctoral Research Associate Cornell University, stationed at ARS facility, Forest Detrick, Frederick, MD.
1984 - 1985
Studied the biosystematics of non-native pathogenic downy mildew pathogens of corn and sugar cane under containment facilities.
- International Society of Arboriculture (2010 - Current)
- Western International Forest Disease Working Committee (1998 - Current)
- International Biodeterioration and Biodegradation Society (1997 - Current)
- Mycological Society of America (1986 - Current)
Awards & Recognition
- Mycological Society of America - Fellow Award, 2015
For outstanding contribution to mycology and service to the Mycological Society of America.
- US Forest Service Spot Award, 2015
For team leadership.
- USDA Certificate of Merit, 2014
Secretary of NRS Civil Rights Committee (2011-2014).
- US Forest Service Spot Award, 2013
For team leadership.
- USDA Certificate of Merit, 2006
Team award for customer service.
- USDA Certificate of Merit, 2005
Team award for customer service.
- USDA Certificate of Merit, 2004
- USDA-Animal Plant Health Inspection Service Certificate of Merit, 2001
"For commitment to safeguarding demonstrated by contributions as a member of the Science and Technology Committee."
- USDA Certificate of Merit, 1998
For exceeding requirements of the position.
- USDA Certificate of Merit, 1996
For exceeding the requirements of the position.
- USDA Certificate of Merit, 1995
For exceeding requirements of the position.
- USDA Certificate of Merit, 1994
For exceeding requirements of the position.
- USDA Certificate of Merit, 1992
From WO staff for writing "Good Laboratory Practices" chapters for Forest Service Handbook and Manual.
- USDA Certificate of Merit, 1990
For service as Federal Women's Program Manager.
- Cunningham Foundation Graduate Research Fellowship, 1983
Stipend provided for continuing graduate studies.
- National Science Foundation Graduate Fellowship, 1979
Stipend award for graduate studies.
Featured Publications & Products
- Garvie, Laurence A.J.; Wilkens, Barry; Groy, Thomas L.; Glaeser, Jessie A. 2015. Substantial production of drosophilin A methyl ether (tetrachloro-1,4-dimethoxybenzene) by the lignicolous basidiomycete Phellinus badius in the heartwood of mesquite (Prosopis juliflora) trees. Sci Nat, Volume 102, Number 18, 2015; 8 p.
- Glaeser, Jessie A.; Smith, Kevin T. 2013. Decay fungi of riparian trees in the Southwestern U.S.. Western Arborist. (Fall): 40-51.
- Glaeser, J.A.; Nakasone, K.K.; Lodge, D.J.; Ortiz-Santana, B.; Lindner, D.L. 2013. The culture collection and herbarium of the Center for Forest Mycology Research: A national resource. In: Browning, John; Palacios, Patsy, comps. Proceedings of the Western International Forest Disease Work Conference; 2012 October 8-12, 2012.; Tahoe City, CA. [Place of publication unknown]:Western International Forest Disease Work Conference: 123-129.
- Smith, Kevin T.; Glaeser, Jessie A. 2013. Skeleton decay in red cedar. Arborist News. 22 (3): 32-34.
- Glaeser, Jessie A.; Smith, Kevin T. 2010. Decay fungi of oaks and associated hardwoods for western arborists. Western Arborist. Winter 2010: 32-46.
- Kliejunas, John T.; Geils, Brian W.; Glaeser, Jessie Micales; Goheen, Ellen Michaels; Hennon, Paul; Kim, Mee-Sook; Kope, Harry; Stone, Jeff; Sturrock, Rona; Frankel, Susan J. 2009. Review of literature on climate change and forest diseases of western North America. Gen. Tech. Rep. PSW-GTR-225. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 54 p.
- Banik, M.T.; Lindner, D.L.; Juzwik, J.; Glaeser, J.A. 2013. Use of DNA sequencing to detect pathogenic, saprotrophic, and stain fungi in sapwood of declining red pine (Pinus resinosa) in the Upper Midwest. In: Browning, John; Palacios, Patsy, comps. Proceedings of the Western International Forest Disease Work Conference; 2012 Oct. 8-12; Lake Tahoe, CA. [Place of publication unknown]: Western International Forest Disease Work Conference: 101-110.
- Lindner, Daniel L.; Gargas, Andrea; Lorch, Jeffrey M.; Banik, Mark T.; Glaeser, Jessie A.; Kunz, Thomas H.; Blehert, David S. 2011. DNA-based detection of the fungal pathogen Geomyces destructans in soils from bat hibernacula. Mycologia. 103(2): 241-246.
- Glaeser, Jessie A. 2012. Online resources for the identification of North American wood decay fungi. Arborist News. December: 55-56.
- Glaeser, Jessie A.; Nakasone, Karen K. 2010. Recent change in the nomenclature of Phellinus pini: What is Porodaedalea?. In: Proceedings of the 6th western hazard tree workshop; 2010 June 14-18; Medford, OR. U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team: 46-50.
Publications & Products
- Sun, Grace; Ibach, Rebecca E.; Faillace, Meghan; Gnatowski, Marek; Glaeser, Jessie A.; Haight, John. 2016. Laboratory and exterior decay of wood plastic composite boards: voids analysis and computed tomography. Wood Material Science & Engineering.
- Ibach, Rebecca; Sun, Grace; Gnatowski, Marek; Glaeser, Jessie; Leung, Mathew; Haight, John. 2015. Exterior Decay of Wood-Plastic Composite Boards: Characterization and Magnetic Resonance Imaging. Forest Products Journal.
- DeNitto, Gregg A.; Cannon, Philip; Eglitis, Andris; Glaeser, Jessie A.; Maffei, Helen; Smith, Sheri. 2015. Risk and pathway assessment for the introduction of exotic insects and pathogens that could affect Hawai'i's native forests. Gen. Tech. Rep. PSW-GTR-250. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 171 p.
- Richter, Dana L.; Glaeser, Jessie A. 2015. Wood decay by Chlorociboria aeruginascens (Nyl.) Kanouse (Helotiales, Leotiaceae) and associated basidiomycete fungi. International Biodeterioration & Biodegradation.
- Sun, Grace; Ibach, Rebecca; Gnatowski, Marek; Glaeser, Jessie; Leung, Mathew; Haight, John. 2014. Modern Instrumental Methods to Investigate the Mechanism of Biological Decay in Wood Plastic Composites. IRG/WP 14-40674, The international Research Group on Wood Protection, section 4, Processes and properties, Paper prepared for the 45th IRG Annual Meeting, St George, Utah, USA, 11-15 May 2014; pp. 2-20;.
- Kirker, Grant T.; Glaeser, Jessie; Lebow, Stan T.; Green III, Frederick; Clausen, Carol A. 2011. Physical deterioration of preservative treated poles and pilings exposed to salt water. General technical report FPL-GTR-203. Madison, WI : U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 2011: 5 p.
- Glaeser, Jessie A.; Smith, Kevin T. 2010. Decay fungi associated with oaks and other hardwoods in the western United States. In: Proceedings of the 6th western hazard tree workshop; 2010 June 14-18; Medford, OR. U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team: 19-31.
- Winandy, Jerrold E.; Muehl, James H.; Glaeser, Jessie A.; Schmidt, Walter. 2007. Chicken feather fiber as an additive in MDF composites. Jounral of natural fibers. Vol. 4, no. 1 (2007): pages 35-48.
- Kliejunas, John T; Burdsall, Harold H.; DeNitto, Gregg A.; Eglitis, Andris; Haugen, Dennis A.; Haverty, Michael I.; Micales-Glaeser, Jessie A. 2006. Pest risk assessment of the importation into the United States of unprocessed Pinus logs and chips from Australia. FHTET (Series) 2006-06. [Washington, D.C.] : U.S. Dept. of Agriculture, Forest Service, Forest Health Protection, Forest Health Technology Enterprise Team, 2006: xii, 159 pages.
- Czederpiltz, D.L.L.; Wikler, K.; Radmacher, M.R.; Volk, T.J.; Hadar, Y.; Micales, J. 2004. Biodiversity of wood-inhabiting fungi in Israeli pine forests. Fungi in forest ecosystems : systematics, diversity, and ecology. New York : New York Botanical Garden, 2004. Memoirs of the New York Botanical Garden ; vol. 89: Pages -202.
- Micales-Glaeser, Jessie A.; Lloyd, Jeffrey D.; Woods, Thomas L. 2004. Efficacy of didecyl dimethyl ammonium chloride (DDAC), disodium octaborate tetrahydrate (DOT), and chlorothalonil (CTL) against common mold fungi. IRG documents 2004 : IRG 35, 6-10 June 2004, Ljubljana, Slovenia. Stockholm, Sweden : IRG Secretariat, 2004.  Pages.
- Kliejunas, John T.; Burdsall, Harold H., Jr.; DeNitto, Gregg A.; Eglitis, Andris; Haugen, Dennis A.; Harverty, Michael I.; Micales, Jessie A.; Tkacz, Borys M.; Powell, Mark R. 2003. Pest risk assessment of the importation into the United States of unprocessed logs and chips of eighteen Eucalypt species from Australia.. Gen. Tech. Rep. FPL-137. Madison, WI : U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 2003. 206 pages.
- Winandy, Jerold E.; Muehl, James H.; Micales, Jessie A.; Raina, Ashok; Schmidt, Walter. 2003. Potential of chicken feather fibre in wood MDF composites. EcoComp 2003, Queen Mary, University of London, September 1-2, 2003: 6 pages.
- Micales, Jessie A. 2002. What do you need to know to get started with wood and fish waste composting?. In:Proceedings of the Wood 'n' Fish Composting Workshop, Small Industry Waste Manangement in Alaska : a Workshop on Utilization Opportunities for Fish and Wood Waste, April 11, 2001. [S.l. : s.n.], 2002: pages 3-8.
- Nicholls, David; Richard, Thomas; Micales, Jesse A. 2002. Wood and fish residuals composting in Alaska. Biocycle. (Apr. 2002): pages 32-34.
- Celimene, Catherine C.; Micales, Jessie A.; Ferge, Leslie; Young, Raymond A. 1999. Efficacy of pinosylvins against white-rot and brown-rot fungi . Holzforschung. Vol. 53, no. 5 (1999).:p. 491-497 : ill.
National Research Highlights
DNA Tool Detects White-Nose Syndrome Fungus in Bat Caves (2010)
NRS scientists Daniel Lindner and Jessie Glaeser are collaborating with the USGS Wildlife Health Laboratory in Madison, WI, to characterize the distribution of G. destructans in cave sediment samples from bat hibernation sites in the eastern United States.
Detection of Heterbasidion Root Disease Using Genetic Fingerprinting (2013)
Heterobasidion root rot is a significant pathogen in the red pine plantations of the midwestern U.S. Little is known about its distribution. Forest Service scientists developed a DNA molecular test for field personnel to use in diagnosing the disease.
Managing Wood Decay in the Urban Forest (2014)
Arborists need tools to help identify patterns of wood decay as part of tree risk analysis and decisions on the proper care of urban and community trees. Forest Service scientists prepared a series of articles to introduce arborists to frequently encountered decay fungi and patterns of decay in common oak and riparian tree species.
Web-enabled Database for Center for Forest Mycology Research Expanded (2010)
The culture collection and herbarium maintained by the Center of Forest Mycology Research (CFMR) in Madison, Wisconsin is one of the largest fungal 'libraries' in the world. The collection specializes in fungi associated with wood and contains both living fungi and dried reference specimens, which are used by researchers world-wide in studying forest pathology, disturbance biology, fungal genetics, distribution of invasive species, and impact of climate change on forest ecosystems. The CFMR's web-enabled database, accessible at http://www.fpl.fs.fed.us/research/centers/mycology/culture-collection.shtml, has recently been enlarged and updated.