Education

Ph.D. in Plant Pathology, Cornell University, 1998

Current position

Associate Professor, Department of Plant Pathology and Crop Physiology, Louisiana State University/Louisiana State University Agricultural Center (2013-present)

Publications (since 2005)

1. Shrestha, B. K., Karki, H. S., Groth, D. E., Jungkhun, N. and Ham, J. H. (2016). Biological Control Activities of Rice-Associated Bacillus sp. Strains against Sheath Blight and Bacterial Panicle Blight of Rice. PLoS One 11(1): e0146764.
   
2. Chen, R., Barphagha, I. K. and Ham, J. H. (2015). Identification of potential genetic components involved in the deviant quorum-sensing signaling pathways of Burkholderia glumae through a functional genomics approach. Front Cell Infect Microbiol 5: 22.
   
3. Han, J. W., Kim, J. D., Lee, J. M., Ham, J. H., Lee, D. and Kim, B. S. (2014). Structural elucidation and antimicrobial activity of new phencomycin derivatives isolated from Burkholderia glumae strain 411gr-6. J Antibiot (Tokyo) 67(10): 721-723.
   
4. Karki, H. S. and Ham, J. H. (2014). The roles of the shikimate pathway genes, aroA and aroB, in virulence, growth and UV tolerance of Burkholderia glumae strain 411gr-6. Mol Plant Pathol 15(9): 940-947.
   
5. Gangadharan, A., Sreerekha, M. V., Whitehill, J., Ham, J. H. and Mackey, D. (2013). The Pseudomonas syringae pv. tomato type III effector HopM1 suppresses Arabidopsis defenses independent of suppressing salicylic acid signaling and of targeting AtMIN7. PLoS One 8(12): e82032.
   
6. Choi, H. W., Kim, D. S., Kim, N. H., Jung, H. W., Ham, J. H. and Hwang, B. K. (2013). Xanthomonas filamentous hemagglutinin-like protein Fha1 interacts with pepper hypersensitive-induced reaction protein CaHIR1 and functions as a virulence factor in host plants. Mol Plant Microbe Interact 26(12): 1441-1454.
   
7. Francis, F., Kim, J., Ramaraj, T., Farmer, A., Rush, M. C. and Ham, J. H. (2013). Comparative genomic analysis of two Burkholderia glumae strains from different geographic origins reveals a high degree of plasticity in genome structure associated with genomic islands. Mol Genet Genomics 288(3-4): 195-203.
   
8. Kim, H. Y., Kim, J. D., Hong, J. S., Ham, J. H. and Kim, B. S. (2013). Identification of antifungal niphimycin from Streptomyces sp. KP6107 by screening based on adenylate kinase assay. J Basic Microbiol 53(7): 581-589.
   
9. Chen, R., Barphagha, I. K., Karki, H. S. and Ham, J. H. (2012). Dissection of quorum-sensing genes in Burkholderia glumae reveals non-canonical regulation and the new regulatory gene tofM for toxoflavin production. PLoS One 7(12): e52150.
   
10. Ham, J. H. (2013). Intercellular and intracellular signalling systems that globally control the expression of virulence genes in plant pathogenic bacteria. Mol Plant Pathol 14(3): 308-322.
    
11. Karki, H. S., Shrestha, B. K., Han, J. W., Groth, D. E., Barphagha, I. K., Rush, M. C., Melanson, R. A., Kim, B. S. and Ham, J. H. (2012). Diversities in virulence, antifungal activity, pigmentation and DNA fingerprint among strains of Burkholderia glumae. PLoS One 7(9): e45376.
    
12. R. A. Melanson, R. S. Sanderlin, A. R. McTaggart, and J. H. Ham. 2012. A systemic study of the 16S-23S rRNA intergenic transcribed spacer region, pglA, and ERIC-PCR and REP-PCR fingerprints reveals that Xylella fastidiosa strains from pecan are part of X. fastidiosa subsp. multiplex. Plant Dis. 96: 1123 - 1134.
    
13. Karki, H. S., Barphagha, I. K. and Ham, J. H. (2012). A conserved two-component regulatory system, PidS/PidR, globally regulates pigmentation and virulence-related phenotypes of Burkholderia glumae. Mol Plant Pathol 13(7): 785-794.
    
14. Ham, J. H.*, Melanson, R. A. and Rush, M. C. (2011). Burkholderia glumae: next major pathogen of rice? Mol Plant Pathol 12(4): 329-339.（*Corresponding authorship ）
    
15. Ham, J. H., Majerczak, D. R., Nomura, K., Mecey, C., Uribe, F., He, S. Y., Mackey, D. and Coplin, D. L. (2009). Multiple activities of the plant pathogen type III effector proteins WtsE and AvrE require WxxxE motifs. Mol Plant Microbe Interact 22(6): 703-712.
    
16. Ham, J. H., Majerczak, D., Ewert, S., Sreerekha, M. V., Mackey, D. and Coplin, D. (2008). WtsE, an AvrE-family type III effector protein of Pantoea stewartii subsp. stewartii, causes cell death in non-host plants. Mol Plant Pathol 9(5): 633-643.
    
17. Ham, J. H., Kim, M. G., Lee, S. Y. and Mackey, D. (2007). Layered basal defenses underlie non-host resistance of Arabidopsis to Pseudomonas syringae pv. phaseolicola. Plant J 51(4): 604-616.
    
18. Ham, J. H., Majerczak, D. R., Arroyo-Rodriguez, A. S., Mackey, D. M. and Coplin, D. L. (2006). WtsE, an AvrE-family effector protein from Pantoea stewartii subsp. stewartii, causes disease-associated cell death in corn and requires a chaperone protein for stability. Mol Plant Microbe Interact 19(10): 1092-1102.