SFA Faculty Listing

Timothy Bowden, Aquaculture
Stephanie Burnett, Horticulture
Beth Calder, Food Science
Lily Calderwood, Horticulture
Mary Ellen Camire, Food Science
Robert Causey, Animal Science
Susan Erich, Plant and Soil Chemistry
Eric Gallandt, Weed Ecology
Charlene Gray, Horticulture
Jianjun (Jay) Hao, Plant Pathology
Mark Hutton, Vegetable Crops
Pauline Kamath, Animal Health
Dorothy Klimis-Zacas, Clinical Nutrition
Anne Lichtenwalner, Animal Science
Robson Machado, Food Science
Ellen Mallory, Sustainable Agriculture
David Marcinkowski, Animal Science
Jade McNamara, Human Nutrition
Eileen Molloy, Human Nutrition
Renae Moran, Pomology
Angela Myracle, Human Nutrition
Balu Nayak, Food Science
Tsutomu Ohno, Soil Chemistry
Brian Perkins, Food Science
Jennifer Perry, Food Microbiology
Bryan Peterson, Horticulture
Greg Porter, Crop Ecology
Juan Romero, Animal Nutrition
Denise Skonberg, Food Science
Susan Sullivan, Human Nutrition
Mona Therrien, Human Nutrition
Matthew Wallhead, Horticulture
James Weber, Animal Science
Adrienne White, Professor Emerita
David Yarborough, Horticulture
Kate Yerxa, Human Nutrition

Jianjun (Jay) Hao

Associate Professor of Plant PathologyHao

Degree: Ph. D. 2000, University of California-Davis
Phone: 207.581.2564
Email: jianjun.hao1@maine.edu
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.

Recent Publications:

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.