Chuanxue Hong

Professor

  • Professor

Education

Ph.D.  Plant Pathology, 1990, China Agricultural University, Beijing

M.S.  Plant Pathology, 1987, China Agricultural University, Beijing

B.S.  Plant Protection, 1982, Anhui Agricultural University, Hefei

Experience

  • July 2010 – present: Professor, Department of Plant Pathology, Physiology and Weed Science, Hampton Roads Agricultural Research and Extension Center, Virginia Polytechnic Institute and State University, Virginia Beach
  • July 2005 – June 2010: Associate Professor, Department of Plant Pathology, Physiology and Weed Science, Hampton Roads Agricultural Research and Extension Center, Virginia Polytechnic Institute and State University, Virginia Beach
  • May 1999 – June 2005: Assistant Professor, Department of Plant Pathology, Physiology and Weed Science, Hampton Roads Agricultural Research and Extension Center, Virginia Polytechnic Institute and State University, Virginia Beach
  • October 1995 – May 1999: Postdoctoral Associate, Department of Plant Pathology, University of California, Davis
  • April 1994 – October 1995:International Fellow, Rothamsted Research, Harpenden, United Kingdom
  • September 1993 – April 1994: Research Fellow, International Crop Research Institute for Semi-Arid Tropics (ICRISAT), Hyderabad, India
  • January 1993 – September 1993: Associate Professor, Institute of Crop Protection, Chinese Academy of Agricultural Sciences, Beijing, China
  • July 1990 – December 1992: Assistant Professor, Institute of Crop Protection, Chinese Academy of Agricultural Sciences, Beijing, China
  • July 1982 – September 1984: Extension Specialist, Jixi Agricultural Center, Anhui, China

Selected Major Awards  

  • 2016 - National Distinction Award – Virginia Tech
  • 2014 - Nominee for the USDA National Institute of Food and Agriculture Partnership Award
  • 2014 - The Virginia Tech Scholar of the Week for the week of January 27 through January 31, 2014 (http://www.vtnews.vt.edu/homepage-assets/scholar-week.html)
  • 2011 - Featured in Spotlight on Virginia Tech, an electronic magazine at http://www.vt.edu/spotlight/impact/2011-05-23-nurseries/pathogens.html for 4 weeks from May 22 to June 18
  • 2009 - The Extension Materials Award - Website Category, The American Society for Horticultural Science (Team Award)
  • 2009 - The Educational Aids Blue Ribbon Award, The American Society of Agricultural and Biological Engineers (Team Award)
  • 2007 - The College Award for Excellence in Applied Research, College of Agriculture and Life Sciences, Virginia Tech
  • 1994 - Rothamsted International Fellowship, Rothamsted Research
  • 1993 - Research Fellowship, ICRISAT
  • 1993 - Advancement in Science and Technology Award, The Beijing Municipal Government
  • 1990 - The Most Outstanding Doctoral Dissertation Award, China Agricultural University

Courses Taught

  • PPWS 5204 – Principles of Plant Disease Management

Other Teaching and Advising

As an advisor, I strive to foster independence and personal responsibility, and promote strategic thinking, knowledge synthesis and communication skills. The goal is to empower postdoctoral associates, graduate students, and summer interns, and prepare them for a productive life in a global society.

Program Focus

The overall goal of my research is to develop science-based sustainable solutions to plant biosecurity, water and environmental sustainability in a changing climate.  We strive to develop a better understanding of pathogen aquatic biology, microbial ecology and recycled water quality dynamics in irrigation and precipitation runoff containment basins, improve agricultural water health, and convert agricultural wastes to invaluable resources. We endeavor to understand the etiology, pathogen biology and epidemiology of new and emerging diseases such as sudden oak death (ramorum blight), boxwood blight and develop immediate and long-term solutions to these diseases.

Current Projects

  • “Integrated management of zoosporic pathogens and irrigation water quality for a sustainable green industry” – this project funded by USDA-National Institute of Food and Agriculture (NIFA) – Specialty Crop Research Initiative (SCRI) is a joint effort with seven institutions and in partnership with the ornamental horticulture industry across the nation. This project focuses on development of protocols to help farmers capture and reuse runoff water for irrigation without recycling and spreading plant pathogens by better system designs (www.irrigation-pathogens.info).
  • "Understanding pathogen biology & epidemiology to enhance mitigation strategies for boxwood blight" - this project supported by the 2014 Farm Bill via USDA Animal and Plant Health Inspection Services is a joint effort with Oregon State University. 
  • "Biologically-based new mitigation strategies for boxwood blight" - this project supported by the 2014 Farm Bill via USDA Animal and Plant Health Inspection Services is a joint effort with colleagues in North Carolina State University and Oregon State University.
  • "Enhancing boxwood blight mitigation through innovation, integration and education" - this project supported by the 2014 Farm Bill via USDA Animal and Plant Health Inspection Services is a joint effort with colleagues in Cornell University, Hood College, North Carolina State University, Oregon State University, and USDA ARS.
  • “Aetiology of emerging ornamental crop diseases” – this project supported by VA Agricultural Experiment Station addresses the emerging needs of the horticulture industry for disease control solutions.

Program Focus

The primary goal of my extension program is to empower clientele to make informed management decisions on crop health, water shortage and agricultural runoff, three highly interconnected issues of global significance. I also conduct a variety of programs to meet their routine and emerging needs for disease control.

Current Projects

  • Development of an online knowledge center for irrigation pathogens and water quality
  • Diagnostics of plant disease samples to help formulate disease management programs
  • Fungicide trials to provide immediate and practical solutions to major disease problems.

* Graduate Student, Postdoctoral Associate or Visiting Scientist

Books

  • Hong, C. X., Moorman, G. W., Wohanka, W., and Büttner, C. 2014. Biology, Detection and Management of Plant Pathogens in Irrigation Water. APS Press, St. Paul, MN, USA. 436p
  • Gallegly, M. E., and Hong, C. X.  2008.  Phytophthora: Identifying Species by Morphology and DNA Fingerprints.  APS Press, St. Paul, MN, USA. 158p

Refereed journal articles

  • Avenot, H. F.*, King, C., Edwards, T. P., Baudoin, A., and Hong, C. X. 2017.  Effects of inoculum dose, temperature, cultivar, and interrupted leaf wetness periods on infection of boxwood by Calonectria pseudonaviculata. Plant Disease published online at http://dx.doi.org/10.1094/PDIS-05-16-0742-RE
  • Copes, W. E., Zhang, H. B., Richardson, P. A., Belayneh, B. E, Ristvey, A., Lea-Cox, J., and Hong, C. X. 2017.  Nutrient, pH, alkalinity, and ionic property levels in run-off containment basins in Maryland, Mississippi and Virginia ornamental plant nurseries. HortScience (accepted)
  • Kong, P., and Hong, C. X.  2017. Biocontrol of boxwood blight by Trichoderma koningiopsis Mb2. Crop Protection 98:124-127
  • Kong, P., Richardson, P. A., and Hong, C. X.  2017.  Diversity and community structure of cyanobacteria and associated microbes in agricultural runoff containment reservoirs. PLoS ONE 12(3): e0173903. https://doi.org/10.1371/journal.pone.0173903
  • Brazee, N. J., Yang, X.*, and Hong, C. X.  2016.  Phytophthora caryae sp. nov., a new species from streams and rivers in eastern United States. Plant Pathology published online first at DOI: 10.1111/ppa.12617
  • Choudhary, C. E., Burgos-Garay, M. L., Moorman, G. W., and Hong, C. X.  2016.  Pythium and Phytopythium species in two Pennsylvania greenhouse irrigation water tanks. Plant Disease 100:926-932
  • Hong, C. X. 2016. Koch’s postulates in the genomics era. Science eLetters at http://science.sciencemag.org/content/351/6270/224.e-letters
  • Jung, T., Chang, T. T., Bakonyi, J., Seress, D., Pérez-Sierra, A., Yang, X.*, Hong, C. X., Scanu, B., Fu, C. H., Hsueh, K. L, Maia, C., Abad-Campos, P., Léon, M., and Jung, M. H. 2016.  Diversity of Phytophthora species in natural ecosystems of Taiwan and association with disease symptoms. Plant Pathology published online at doi: 10.1111/ppa.12564
  • Kong, P., and Hong, C. X.  2016.  Environmental bacteria promote infection of host and nonhost plants by Phytophthora species. Nature Scientific Reports  published online at http://www.nature.com/articles/srep33239
  • Kong, P., Likins, T. M., and Hong, C. X. 2016.  First report of blight of Sarcococca hookeriana var. humilis by Calonectria pseudonaviculata in Virginia. Plant Disease published online http://dx.doi.org/10.1094/PDIS-05-16-0654-PDN
  • Kong, P., Likins, T. M., and Hong, C. X.  2016.  First report of Pachysandra terminals leaf blight by Calonectria pseudonaviculata in Virginia. Plant Disease published online first at http://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-10-16-1513-PDN
  • Copes, W. E., Yang, X., and Hong, C. X.  2015.  Phytophthora species recovered from irrigation reservoirs in Mississippi and Alabama nurseries and pathogenicity of three new species.  Plant Disease 99:1390-1395
  • Dart, N. L.*, Hong, C. X., Craig, C. A., Fry, J. T., and Hu, X. R.  2015.  Soil inoculum production, survival and infectivity of the boxwood blight pathogen, Calonectria pseudonaviculata.  Plant Disease 99:1689-1694
  • Yang, X.*, Balci, Y., Brazee, N. J., Loyd, A. L., and Hong, C. X.  2015.  A unique species in Phytophthora clade 10, Phytophthora intercalaris sp. nov., recovered from stream and irrigation water in eastern USA. International Journal of Systematic and Evolutionary Microbiology 66:845-855
  • Yang, X.*, and Hong, C. X. 2015.  Diversity and population of Phytophthora, Phytopythium and Pythium recovered from sediments in an agricultural runoff sedimentation reservoir. Plant Pathology published online at DOI: 10.1111/ppa.12488
  • Zhang, H. B.*, Richardson, P. A., Belayeh, B. E., Ristvey, A., Lea-Cox, J. D., Copes, W. E., Moorman, G. W., and Hong, C. X.  2015.  Characterization of water quality in stratified recycling irrigation reservoirs. Agricultural Water Management 160:76-83
  • Burgos-Garay, M. L., Moorman, G. W., and Hong, C. X. 2014.  Interactions of heterotrophic bacteria from recycled greenhouse irrigation water with plant pathogenic Pythium.  HortScience 49:961-967
  • Dart, N. L.*, Hong, C. X., and Bradley, W. T. 2014.  An improved leaf disc bioassay for detecting Calonectria pseudonaviculata in soil and potting media.  Plant Disease 98:1626-1631
  • Hao, W.*, and Hong, C. X.  2014.  Heat treatment induced bacterial changes in irrigation water and their implications for plant disease management. World Journal of Microbiology and Biotechnology 30:1591-1601
  • Kong, P., and Hong, C. X. 2014.  Oxygen stress reduces zoospore survival of Phytophthora species in a simulated aquatic system. BMC Microbiology http://www.biomedcentral.com/1471-2180/14/124
  • Yang, X.*, Copes, W. E., and Hong, C. X. 2014.  Two novel species representing a new clade and cluster of Phytophthora species. Fungal Biology 118:72-82
  • Yang, X.*, Gallegly, M. E., and Hong, C. X.  2014.  A new high-temperature tolerant species in the clade 9 of the genus Phytophthora: P. hydrogena sp. nov. Mycologia 106:57-65
  • Yang, X.*, and Hong, C. X. 2014. Halophytophthora fluviatilis sp. nov. from freshwater in Virginia.  FEMS Microbiology Letters 352:230-237
  • Olson, H. A.*, Jeffers, S. N., Ivors, K. L., Steddom, K. C., Williams-Woodward, J. L., Mmbaga, M. T., Benson, D. M., and Hong, C. X. 2013. Diversity and mefenoxam sensitivity of Phytophthora spp. associated with the ornamental horticulture industry in the southeastern US. Plant Disease 97:86-92
  • Pistininzi, M.*, Weiss, E., Achtemeier, L., and Hong, C. X. 2013.  Zoospore production biology of pythiaceous plant pathogens.  Journal of Phytopathology 162:69-801.    
  • Yang, X.*, Copes, W. E., and Hong, C. X.  2013.  Phytophthora mississippiae sp. nov., a new species recovered from irrigation reservoirs at a plant nursery in Mississippi.  Journal of Plant Pathology and Microbiology http://dx.doi.org/10.4172/2157-7471.1000180
  • Yang, X.*, and Hong, C. X. 2013.  Phytophthora virginiana sp. nov., a high-temperature tolerant species from irrigation water in Virginia. Mycotaxon 126:167-176
  • Yang, X.*, Kong, P., and Hong, C. X. 2013. Evaluation of fungicide drenches for control of Phytophthora root rot of petunia, 2012. Plant Disease Management Reports 7:OT002
  • Yang, X.*, Richardson, P. A., and Hong, C. X. 2013. Evaluation of fungicide for control of rose downy mildew, 2012. Plant Disease Management Reports 7:OT001
  • Yang, X.*, Richardson, P. A., Kong, P., and Hong, C. X. 2013. Fungicidal control of Phytophthora aerial blight on annual vinca in Virginia, 2012. Plant Disease Management Reports 7:OT005
  • Yang, X.*, Richardson, P. A., Olson, H. A., and Hong, C. X. 2013.  Root and stem rot of begonia caused by Phytopythium helicoides in Virginia. Plant Disease 97:1385
  • Hao, W.*, Ahonsi, M. O., Vinatzer, B. A. and Hong, C. X., 2012. Inactivation of Phytophthora and bacterial species in water by a potential energy-saving heat treatment. European Journal of Plant Pathology DOI 10.1007/s10658-012-9994-4
  • Hong, C. X., Richardson, P. A., Hao, W., Ghimire, S. R., Kong, P., Moorman, G. W., Lea-Cox, J. D., and Ross, D. S. 2012. Phytophthora aquimorbida sp. nov. and Phytophthora taxon ‘aquatilis’ recovered from irrigation reservoirs and a stream in Virginia, USA. Mycologia doi:10.3852/11-055
  • Kong, P., Lea-Cox, J. D., and Hong, C. X. 2012. Effect of electrical conductivity on survival of Phytophthora alni, P. kernoviae and P. ramorum in a simulated aquatic environment. Plant Pathology DOI: 10.1111/j.1365-3059.2012.02614.x
  • Kong, P., Lea-Cox, J. D., Moorman, G. W. and Hong, C. X. 2012. Survival of Phytophthora alni, P. kernoviae and P. ramorum in a simulated aquatic environment at different levels of pH. FEMS Microbiology Letters DOI: 10.1111/j.1574-6968.2012.02574.x
  • Man in 't Veld, W. A., Rosendahl, K. C. H. M., and Hong, C. X. 2012. Phytophthora Xserendipita sp. nov., a new species generated by natural hybridization. Mycologia doi:10.3852/11-272
  • Yang, X.*, Richardson, P. A., Ghimire, S. R., Kong, P., and Hong, C. X. 2012. Phytophthora hedraiandra detected from irrigation water at a perennial plant nursery in Virginia. Plant Disease 96:915
  • Ghimire, S. R.*, Richardson, P. A., Kong, P., Hu, J. H., Lea-Cox, J. D., Ross, D. R., Moorman, G. W., and Hong, C. X. 2011. Distribution and diversity of Phytophthora species in nursery irrigation reservoir adopting water recycling system during winter months. Journal of Phytopathology DOI: 10.1111/j.1439-0434.2011.01831.x
  • Hong, C. X., Gallegly, M. E., Richardson, P. A., and Kong, P. 2011. Phytophthora pini Leonian resurrected to distinct species status. Mycologia 103:351-360
  • Ahonsi, M. O.*, Banko, T. J., Doane, S. R., Demuren, A. O., Copes, W. E., and Hong, C. X. 2010. Effects of hydrostatic pressure, agitation and CO2 stress on Phytophthora nicotianae zoospores in simulated recycled irrigation water. Pest Management Science 66:696-704
  • Hao, W.*, Richardson, P. A., and Hong, C. X. 2010. First report of foliar blight of Catharanthus roseus caused by Phytophthora tropicalis in Virginia. Plant Disease 94:274
  • Hong, C. X., Gallegly, M. E., Richardson, P. A., Kong, P., Moorman, G. W., Lea-Cox, J. D., and Ross, D. S. 2010. Phytophthora hydropathica, a new species isolated from irrigation water, Rhododendron catawbiense and Kalmia japonica. Plant Pathology 59:913-921
  • Hu J. H.*, Hong, C. X., Stromberg, E. L., and Moorman, G. W. 2010. Mefenoxam sensitivity in Phytophthora cinnamomi isolates. Plant Disease 94:39-44
  • Kong, P. and Hong, C. X. 2010. Zoospore density-dependent behaviors of Phytophthora nicotianae are autoregulated by extracellular products. Phytopathology 100:632-637
  • Kong, P., Lee, B. W. K., Zhou, Z. S., Bhalla, R., and Hong, C. X. 2010. Zoosporic plant pathogens produce bacterial autoinducer-2 that affects Vibrio harveyi quorum sensing. FEMS Microbiology Letters 303:55-60
  • Kong, P., Tyler, B. M., Richardson, P. A., Lee, B. W. K., Zhou, S. H., and Hong, C. X. 2010. Zoospore interspecific signaling promote plant infection by Phytophthora species. BMC Microbiology http://www.biomedcentral.com/1471-2180/10/313
  • Lea-Cox J. L., Zhao, C., Ross, D. S., Bilderback, T., Harris, J. R., Day, S., Hong, C. X., Yeager, T., Beeson, R., Bauerle, W., Ristvey, A., Lorscheider, M., Dickinson, S., and Ruter, J. 2010. A nursery and greenhouse online knowledge center: learning opportunities for sustainable practice. HortTechnology 20:509-517
  • Parkunan V.*, Johnson, C. S., Bowman, B. C., and Hong, C. X. 2010. First report of Phytopthhora inundata associated with a latent infection of tobacco (Nicotiana tabacum L.) in Virginia. Plant Pathology 59:1164
  • Parkunan, V.*, Johnson, C. S., Bowman, B. C., and Hong, C. X. 2010. Population structure, mating type and mefenoxam sensitivity of Phytophthora nicotianae in Virginia tobacco fields. Plant Disease 94:1361-1365
  • Ghimire, S. R.*, Richardson, P. A., Moorman, G. W., Lea-Cox, J., Ross, D. S., and Hong, C. X. 2009. An in-situ bioassay for detecting Phytophthora species in irrigation runoff containment basins. Plant Pathology 58:577-583
  • Hong, C. X., Gallegly, M. E., Browne, G. T., Bhat, R., Richardson, P. A., and Kong, P. 2009. The avocado subgroup of Phytophthora citricola constitutes a distinct species, Phytophthora mengei sp. nov. Mycologia 101:833-840
  • Hong, C. X., Lea-Cox, J. D., Ross, D. S., Moorman, G. W., Richardson, P. A., Ghimire, S. R., and Kong, P. 2009. Containment basin water quality fluctuation and implications for crop health management. Irrigation Science 27:485-496
  • Kong, P., Moorman, G. W., Lea-Cox, J. D., Ross, D. S., Richardson, P. A., and Hong, C. X. 2009. Zoosporic tolerance to pH stress and its implications for Phytophthora species in aquatic ecosystems. Applied and Environmental Microbiology 75:4307-4314
  • Gallegly, M. E., and Hong, C. X. 2008. Phytophthora: Identifying Species by Morphology and DNA Fingerprints. APS Press, St. Paul, MN, USA. 158p
  • Guha Roy, S., and Hong, C. X. 2008. The first finding of Pythium root rot and leaf blight of elephant foot yam (Amorphophallus campanulatus) in India. Plant Pathology 57:369
  • Hong, C. X., Gallegly, M. E., Richardson, P. A., Kong, and P., Moorman, G. W. 2008. Phytophthora irrigata sp. nov., a new species isolated from irrigation reservoirs and rivers in eastern United States of America. FEMS Microbiology Letters 285:203-211
  • Hong, C. X., Richardson, P. A., and Kong, P. 2008. Pathogenicity to ornamental plants of some existing species and new taxa of Phytophthora from irrigation water. Plant Disease 92:1201-1207
  • Hu, J. H.*, Hong, C. X., Stromberg, E. L., and Moorman, G. W. 2008. Mefenoxam sensitivity and fitness analysis of Phytophthora nicotianae isolates from Virginia nurseries. Plant Pathology 57:728-736
  • Lea-Cox, J. D., Zhao, C., Ross, D. S., Bilderback, T. E., Harris, J. R., Hong, C. X., Yeager, T. H., Bauerle, W. L., Day, S. D., Ristvey, A. G., Beeson R. C. Jr., and Ruter, J. M. 2008. An online knowledge center for water and nutrient management for the nursery and greenhouse industry. Acta Horticulturae 801:693-699
  • Umesha, S.*, Kong, P., Richardson, P. A., and Hong, C. X. 2008. Bacterial blight of Iris caused by Pseudomonas syringae in Virginia. Plant Pathology 57:1176
  • Umesha, S.*, Richardson, P. A., Kong, P., and Hong, C. X. 2008. A novel indicator plant to test the hypersensitivity of phytopathogenic bacteria. Journal of Microbiological Methods 72:95-97
Chuanxue Hong
  • Lab: (757) 363-3941
  • Fax: (757) 363-3950