Jianjun (Jay) Hao

Associate Professor of Plant Pathology

Degree:ÌýPh. D. 2000, University of California-Davis
Phone:Ìý207.581.2564
·¡³¾²¹¾±±ô:Ìýjianjun.hao1@maine.edu
Location:Ìý174 Hitchner Hall

Professional Interests:ÌýPlant-pathogen interaction, phytobiome related to plant health, biological control and fungicide resistance.

°Õ±ð²¹³¦³ó¾±²Ô²µ:ÌýPSE 457 Plant Pathology, PSE 557 Advanced Plant Pathology, SFA 551 Infectious Diseases and Food Safety – From Plants to Humans

¸é±ð²õ±ð²¹°ù³¦³ó:ÌýMy research is focused on the epidemiology and management of potato diseases. Major diseases include bacterial soft rot and blackleg (DickeyaÌý²¹²Ô»åÌýPectobacteriumÌýspp.), common scab (StreptomycesÌýspp.), 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 ofÌýP. erythrosepticaÌýand factors inducing viable but nonculturable state that is related to bacterial dormancy.

RecentÌýPublications:

Jiang, H. and Hao, J. Chemically regulated zoosporic germination and infection ofÌýPhytophthora erythroseptica. Frontiers in Microbiology.ÌýIn 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 inÌýPhytophthora 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 ofÌýClavibacter michiganensisÌýsubsp.ÌýmichiganensisÌýin 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 ofÌýPectobacterium parmentieriÌýcausing bacterial soft rot and blackleg on potato in Maine. Plant Disease 102: 437. DOI: 10.1094/PDIS-05-17-0659-PDN.R2.