Jianjun (Jay) Hao
Associate Professor of Plant Pathology
Degree: Ph. D. 2000, University of California-Davis
Location: 174 Hitchner Hall
Professional Interests: Plant-pathogen interaction, phytobiome related to plant health, biological control and fungicide resistance.
Teaching: PSE 457 Plant Pathology, PSE 557 Advanced Plant Pathology, SFA 551 Infectious Diseases and Food Safety – From Plants to Humans
Research: My research is focused on the epidemiology and management of potato diseases. Major diseases include bacterial soft rot and blackleg (Dickeya and Pectobacterium spp.), common scab (Streptomyces spp.), late blight (Phytophthora infestans),and pink rot (Phytophthora erythroseptica). I am interested in microbiomes that are associated with soil and plant health, and beneficial microorganisms (or biological control agents) for managing plant diseases. We are studying signal molecules that regulate the behavior of P. erythroseptica and factors inducing viable but nonculturable state that is related to bacterial dormancy.
Jiang, H. and Hao, J. Chemically regulated zoosporic germination and infection of Phytophthora erythroseptica. Frontiers in Microbiology. In Print.
Ma, X., Pernab, N.T., Glasner, J.D., Hao, J., Johnson, S., Charkowski, A., Perry, K.L., Stodghill, P., and Swingle, B. 2019. Complete genome sequence of the potato blackleg pathogen Dickeya dianthicola ME23. Microbiology Resource Announcements 6: e01447-17. DOI: 10.1128/genomeA.01447-17.
Zhang, X. M., Jiang, H. and Hao, J. 2019. Evaluation of the risk of development of fluopicolide resistance in Phytophthora erythroseptica. Plant Disease. DOI: 10.1094/PDIS-02-18-0366-RE.
Han, S., Jiang, N., Li, Q., Kan, Y., Hao, J., Li, J., and Luo, L. 2018. Detection of Clavibacter michiganensis subsp. michiganensis in viable but nonculturable state from tomato seed using improved qPCR. PLoS One. 2018; 13(5): e0196525. DOI: 10.1371/journal.pone.0196525.
Ge, T., Jiang, H.H., Hao, J.J., Johnson, S.B. 2018. First report of Pectobacterium parmentieri causing bacterial soft rot and blackleg on potato in Maine. Plant Disease 102: 437. DOI: 10.1094/PDIS-05-17-0659-PDN.R2.