Ph.D. in Plant Pathology, Auburn University, 1999
M.S. in Plant Pathology, Beijing Agricultural University, China, 1988
Research Interests and Current Efforts
Ecology, epidemiology and management of diseases on vegetable and other important crops. Research efforts focus on diseases caused by oomycetes and other pathogens such as Phytophthora blight, black shank, Fusarium wilt, bacterial wilt, bacterial speck and spot, southern blight, downy mildew, and gummy stem blight. One of my primary objectives is to develop integrated approaches for management of vegetable diseases, including the use of cultural practices, host resistance, chemicals, biologicals, and other ecological and genetic manipulations. Research in my lab is also directed towards detection, identification, and analysis of genetic diversity of plant pathogens.
Recent Journal Articles
Keinath, A. P., Coolong, T. W., Lanier, J. D., and Ji, P. 2018. Managing Fusarium wilt of watermelon with delayed transplanting and cultivar resistance. Plant Dis. (in press).
Li, Y., Song, X., Wang, X., Zhang, H., Tian, S., and Ji, P. 2018. First report of fruit rot of watermelon caused by Fusarium equiseti in China. Plant Dis. (in press).
Li, S., Musungu, B., Lightfoot, D., and Ji, P. 2018. The interactomic analysis reveals pathogenic protein networks in Phomopsis longicolla underlying seed decay of soybean. Frontiers in Genetics, 9:104. doi: 10.3389/fgene.2018.00104.
Amaradasa, B. S., Beckham, K., Dufault, N., Sanchez, T., Sarigul, T., Iriarte, F., Paret, M., and Ji, P. 2018. First report of Fusarium oxysporum f. sp. niveum race 3 causing wilt of watermelon in Florida, USA. Plant Dis. 102:1029.
Yang, L., Fountain, J. C., Ji, P., Chen, S., Lee, R. D., Kemerait, R. C., and Guo, B. 2018. Deciphering drought-induced metabolic responses and regulation in developing maize kernels. Plant Biotechnol. J., https://doi.org/10.1111/pbi.12899.
Li, Y., Liu, J., Zhao, T., Li, S., and Ji, P. 2018. First report of damping-off of dent corn seedlings caused by Pythium graminicola in Georgia. Plant Dis. 102:1464.
Li, Y., Zhang, S., Hua, G. K. H, Xu, L., Zhao, T., Huang, H., and Ji, P. 2018. Pathogenicity and genetic diversity of Fusarium oxysporum causing soybean root rot in northeast China. J. Agric. Sci. 10(5):13-23.
Li, Y., Zhao, T., Liu, J., Hua, G. K. H., Ji, P., and Jiang, B. 2018. First report of leaf spot of Hylotelephium erythrostictum caused by Alternaria alternata in Heilongjiang province of China. Plant Dis. 102:1456.
Li, Y., Harris-Shultz, K., Wang, H., Wadl, P. A., and Ji, P. 2017. Population structure and genetic diversity of Phytophthora nicotianae from tobacco in Georgia. Plant Dis. 101:1113-1118.
Qu, T., Gao, S., Li, J., Hao, J. J., and Ji, P. 2017. Synthesis and antifungal activity of 2-allylphenol derivatives against fungal plant pathogens. Pest. Biochem. Physiol. 135:47-51.
Petkar, A., and Ji, P. 2017. Infection courts in watermelon plants leading to seed infestation by Fusarium oxysporum f. sp. niveum. Phytopathology 107:828-833.
Liu, C., Timper, P., Ji, P., Joseph, S., and Mekete, T. 2017. Influence of root exudates and soil on attachment of Pasteuria penetrans to Meloidogyne arenaria. J. Nematol. 49:304-310.
Petkar, A., Langston, D. B., Buck, J. W., Stevenson, K. L., and Ji, P. 2017. Sensitivity of Fusarium oxysporum f. sp. niveum to prothioconazole and thiophanate-methyl and gene mutation conferring resistance to thiophanate-methyl. Plant Dis. 101:366-371.
Kousik, C. S., Ji, P., Egel, D. S., and Quesada-Ocampo, L. M. 2017. Fungicide rotation programs for managing Phytophthora fruit rot of watermelon in southeastern United States. Plant Health Progress 18:28-34.
Li, Y., Zhang, S., Xu, L., Li, S., and Ji, P. 2017. First report of root rot of cowpea caused by Fusarium equiseti in Georgia in the United States. Plant Dis. 101:1674.
Parkunan, V., Timper, P., and Ji, P. 2016. Lack of influence of Meloidogyne incognita on resistance of bell pepper cultivars to Phytophthora capsici. Can. J. Plant Pathol. 37:375-381.
Qu, T., Grey, T. L., Csinos, A. S., and Ji, P. 2016. Translocation of oxathiapiprolin in bell pepper plants and systemic protection of plants against Phytophthora blight. Plant Dis. 100:1931-1936.
Li, Y., Geng, X., Ji, P., Wang, C., and Wei, S. 2016. Isolation and evaluation of a Bacillus methylotrophicus strain for control of corn stalk rot. Biocontrol Sci. Tech. 26:727-731.
Qu, T., Shao, Y., Csinos, A. S., and Ji, P. 2016. Sensitivity of Phytophthora nicotianae from tobacco to fluopicolide, mandipropamid and oxathiapiprolin. Plant Dis. 100:2119-2125.
Li, Y., Huang, M., Sun, L., and Ji, P. 2016. Occurrence of leaf spot of calabash caused by Nigrospora sphaerica in Georgia. Plant Dis. 100:1506.
Wu, T., Milner, H., Diaz-Perez, J. C., and Ji, P. 2015. Effects of soil management practices on soil microbial communities and development of southern blight in vegetable production. Appl. Soil Ecol. 91:58-67.
Yang, L., Fountain, J. C., Wang, H., Ni, X., Ji, P., Lee, R. D., Kemerait, R. C., Scully, B. T., and Guo, B. 2015. Stress sensitivity is associated with differential accumulation of reactive oxygen and nitrogen species in maize genotypes with contrasting levels of drought tolerance. Int. J. Mol. Sci. 16(10): 24791-24819.
Li, S., Song, Q., Ji, P., and Cregan, P. 2015. Draft genome sequence of Phomopsis longicolla type strain TWH P74. GenomeA 3(1):e00010-15. doi:10.1128/genomeA.00010-15.
Ji, P., and Csinos, A. S. 2015. Effect of oxathiapiprolin on asexual life stages of Phytophthora capsici and disease development on vegetables. Ann. Appl. Biol. 166:229-235.
Li, Y., and Ji, P. 2015. First report of fruit rot on watermelon caused by Fusarium equiseti in Georgia in the U.S. Plant Dis. 99:1272.
Li, S., Darwish, O., Alkharouf, N., Matthews, B., Ji, P., Domier, L. L., Zhang, N., and Bluhm, B. H. 2015. Draft genome sequence of Phomopsis longicolla isolate MSPL 10-6. Genomics Data 3:55-56.
Abbas, M., Khan, M. M., Mughal, S. M., and Ji, P. 2015. Comparison of infection of Citrus tristeza closterovirus in Kinnow mandarin (Citrus reticulata) and Musambi sweet orange (Citrus sinensis) in Pakistan. Crop Prot. 78:146-150.