LSU
ContactSearch


  Home

  About Us

  News

  Faculty & Staff

  Graduate Students

  Graduate Program

  Plant Diagnostic Center

  Related Links

  Application Info

  Photo Gallery


 

 

Jong Hyun Ham
Associate Professor

Publications

PUBLICATIONS IN REFEREED JOURNALS

1. Karki, H. S. and J. H. Ham. 2013. 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. Submitted.

2. Choi, H. W., D. S. Kim, N. H. Kim, H. W. Jung, J. H. Ham, and B. K. Hwang. 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. Epub ahead of print] PMID: 23931712.

3. Francis, F., J. Kim, T. Ramaraj, A. Farmer, M. C. Rush, and J. H. Ham. 2013. Comparative genomic analysis of two Burkholderia glumae strains from different geographic origins reveal a high degree of plasticity in genome structure associated with genome islands. Molecular Genetics and Genomics 288:195-203.

4. H. Y. Kim, J. D. Kim, J. S. Hong, J. H. Ham, and B. S. Kim. 2012. Identification of antifungal niphimycin from Streptomyces sp. KP6107 by screening based on adenylate kinase assay. J. Basic Microbiol. 52: 1 - 9.

5. Chen, R., I. K. Barphagha, and J. H. Ham. 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: e52150.

6. Ham, J. H. 2012. Intercellular and intracellular signaling systems that globally control expression of virulence genes in plant pathogenic bacteria. Mol. Plant Pathol. 14: 308 - 322.

7. H. S. Karki, B. K. Shrestha, J. W. Han, D. E. Groth, I. K. Barphagha, M. C. Rush, R. A. Melanson, B. S. Kim, and J. H. Ham. 2012. Diversities in virulence, antifungal activity, pigmentation and DNA fingerprint among strains of Burkholderia glumae. PLoS ONE 7: e45376.

8. 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.

9. H. S. Karki, I. K. Barphaga, and J. H. Ham. 2012. A conserved two-component regulatory system, PidS/PidR, globally regulates pigmentation and virulence-related phenotypes of Burkholderia glumae. Mol. Plant Pathol. 13: 785 - 794.

10. Ham, J. H.*, R. A. Melanson, and M. C. Rush. 2011. Burkholderia glumae: Next major pathogen of rice? Mol. Plant Pathol. 12(4):329-339. *Corresponding authorship

11. Ham, J. H., D. R. Majerczak, K. Nomura, C. Mecey, F. Uribe, S.-Y. He, D. Mackey, and D. L. Coplin. 2009. Multiple activities of the plant pathogen type III effector proteins WtsE and AvrE require WxxxE motifs. Mol. Plant-Microbe Interact. 22: 703-712.

12. Ham, J. H., D. R. Majerczak, S. Ewert, M.-V. Sreerekha, D. Mackey, and D. L. Coplin. 2008. WtsE, an AvrE-family type III effector protein of Pantoea stewartii subsp. stewartii, causes cell death in nonhost plants. Mol. Plant Pathol. 9(5): 633-643.

13. Ham, J. H., M. G. Kim, S. Y. Lee, and D. Mackey. 2007. Layered basal defenses underlie nonhost resistance of Arabidopsis to Pseudomonas syringae pv. phaseolicola. The Plant Journal 51: 604-616.

14. Ham, J. H., D. R. Majerczak, A. R. Arroyo-Rodriguez, D. M. Mackey, D. L. Coplin. 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: 1092-1102.

15. Quirino, B. F., R. Genger, J. H. Ham*, G. Zabala, A. Bent. 2004. Identification and functional analysis of Arabidopsis proteins that interact with resistance gene product RPS2 in yeast. Physiol. Mol. Plant Pathol. 65: 257-267. * Co-first authorship

16. Rojas, C. M., J. H. Ham*, L. M. Schechter, J. F. Kim, S. V. Beer, and A. Collmer. 2004. The Erwinia chrysanthemi EC16 hrp/hrc gene cluster encodes an Active Hrp type III secretion system that is flanked by virulence genes functionally unrelated to the Hrp system. Mol. Plant-Microbe Interact. 17: 644-653. * Co-first authorship

17. Jurkowski, G. I., R. K. Smith, Jr., I. Yu, J. H. Ham, S. B. Sharma, D. F. Klessig, K. A. Fengler, and A. F. Bent. 2004. Arabidopsis DND2, a second cyclic nucleotide-gated ion channel gene for which mutation causes the "defense, no death" phenotype. Mol. Plant-Microbe Interact. 17: 511-520.

18. Ham, J. H., Y. Y. Cui, J. R. Alfano, P. Rodríguez-Palenzuela, C. M. Rojas, A. K. Chatterjee, and A. Collmer. 2004. Analysis of Erwinia chrysanthemi EC16 pelE::uidA, pelL::uidA, and hrpN::uidA mutants reveals strain-specific atypical regulation of the Hrp type III secretion system. Mol. Plant-Microbe Interact. 17: 184-194.

19. Do, H. M., J. K. Hong, H. W. Jung, S. H. Kim, J. H. Ham, B. K. Hwang. 2003. Expression of peroxidase-like genes, H2O2 production, and peroxidase activity during the hypersensitive response to Xanthomonas campestris pv. vesicatoria in Capsicum annuum. Mol. Plant-Microbe Interact. 16: 196-205.

20. Rojas, C. M., J. H. Ham, Deng, W.-L., Doyle, J. J., and A. Collmer. 2002. HecA, a member of a class of adhesins produced by diverse pathogenic bacteria, contributes to the attachment, aggregation, epidermal cell killing, and virulence phenotypes of Erwinia chrysanthemi EC16 on Nicotiana clevelandii seedlings. Proc. Natl. Acad. Sci. U.S.A. 99: 13142 - 13147.

21. Ham, J. H., D. W. Bauer, and A. Collmer. 1998. A cloned Erwinia chrysanthemi Hrp (typeIII protein secretion) system functions in Escherichia coli to deliver Pseudomonas syringae Avr protein signals to plant cells and to secrete Avr proteins in culture. Proc. Natl. Acad. Sci. U.S.A. 95: 10206 - 10211.

22. Kim, J. F., J. H. Ham, D. W. Bauer, A. Collmer, and S. V. Beer. 1998. The hrpC and hrpN operons of Erwinia chrysanthemi EC16 are flanked by plcA and homologs of hemolysin/adhesin genes and accompanying activator/transporter genes. Mol. Plant-Microbe Interact. 11: 563 - 567.

23. Alfano, J. R., J. H. Ham, and A. Collmer. 1995. Use of Tn5tac1 to clone a pel gene encoding a highly alkaline, asparagine-rich pectate lyase isozyme from Erwinia chrysanthemi EC16 mutant with deletions affecting the major pectate lyase isozymes. J. Bacteriol. 177: 4553 - 4556.

24. Ham, J. H., Y. J. Kim, and B. K. Hwang. 1991. Induction of resistance to Metalaxyl of Phytophthora capsici by chemical mutagenesis. Korean J. Plant Pathol. 7(3): 133 - 139.

25. Ham, J. H., B. K. Hwang, Y. J. Kim, and C. H. Kim. 1991. Differential sensitivity to Metalaxyl of isolates of Phytophthora capsici from different geographic areas. Korean J. Plant Pathol. 7(4): 212 - 220.

BOOK CHAPTERS AND PROCEEDINGS

1. Ham, J.H., B. Shrestha, H. Karki, Groth, X. Sha. 2012. Genetic studies to understand and improve rice disease resistance to bacterial panicle blight and sheath blight. 103rd Annual Research Report of Rice Research Station, p311 - 320.

2. Ham, J. H. 2012. Signaling systems for the regulation of virulence factors in plant pathogenic bacteria. Pages 211-242 in: Plant Health (in Korean). B. K. Hwang, Eds. Korea University Press.

3. Oard, S., Ham, J., and Cohn, M. A. 2012. Thionins - nature's weapons of mass protection. Pages 472-511 in: Small wonders: peptides for disease control. American Chemical Society Symposium Series 1095. American Chemical Society, Washington, DC: Oxford University Press, Inc.

4. Subudhi, P.K., J. Ham, C. A. Kimbeng, J.W. Hoy, N. Baisakh. 2011. Marker-assisted breeding to enhance disease resistance in corn, rice, and sugarcane. USDA-NIFA Agriculture and Food Research Initiative, Plant Genome, Genetics, and breeding Programs Project Directors Meeting, San Diego, CA, Jan 14, 2011. Annual Report, Pp 152-154.

5. Groth, D.E., Rush, M.C., Shahjahan, A.K.M., Sha, X., and Ham,J. 2010. Control options for rice bacterial panicle blight. Proc. International Rice Conf. of Latin America and the Caribbean 11:48.

6. Rush, M.C., Groth, D.E., Ham, J., and Nandakumar, R. 2010. Bacterial panicle blight causes and suggested controls. International Rice Conf. of Latin America and the Caribbean 11:45.

7. Ham, J.H., B. Shrestha, H. Karki, X. Sha, D. Groth, H. Utomo, R. Nandakumar, and M.C. Rush. 2010 Development of a genetic Mapping and Breeding program to develop resistant to the bacterial panicle blight and sheath blight diseases. The Proceedings of the 2010 Rice Technical Working Group Meeting. p 60.

8. Ham J. H. 2008. Novel functional motifs of bacterial type III effector: A new insight into the role of small G proteins in plant disease resistance. In New Approaches to Plant Disease Management. Korean Society of Plant Pathology. p 33-36.

9. Ham J. H., M. G. Kim, and D. Mackey. 2006. Nonhost Resistance of Arabidopsis to Pseudomonas syringae pv. phaseolicola Is Mediated by Multiple, Independently Effective Layers of Basal Defense. In Biology of Plant-Microbe Interactions, Vol. 5. Edited by Federico Sanchez, Carmen Quinto, Isabel M. Lopez-Lara, and Otto Geiger, APS press, St. Paul.

10. Ham, J. H. and A. F. Bent. 2002. Recognition and defense signaling in plant/bacterial and fungal interactions (Chapter 9). p198-224. In Plant Signal Transduction: Frontiers in Molecular Biology. Dierk Scheel and Claus Wasternack, Eds. Frontiers in Molecular Biology Series, Oxford University Press.

11. Collmer, A., Charkowski, A. O., Deng, W.-L., Fouts, D. E., Ham, J. H., Rehm, A. H., van Dijk, K., and Alfano, J. R. 2001. Bacterial Avr proteins: secreted agents of parasitism and elicitors of plant defense. In Delivery and Perception of Pathogen Signals in Plants. N. T. Keen, S. Mayama, J. E. Leach, and S. Tsuyumu, ed. APS Press, St. Paul. p 36-45.

12. Collmer, A., J. R. Alfano, D. W. Bauer, G. M. Preston, A. O. Loniello, A. Conlin, J. H. Ham, H.-C. Huang, S. Gopalan, and S. Y. He. 1996. Secreted proteins, secretion pathways, and the plant pathogenicity of Erwinia chrysanthemi and Pseudomonas syringae. In Biology of Plant-Microbe Interactions, Vol. 1, G. Stacey, B. Mullin, and P. M. Gresshoff, eds. p159 - p164.

OTHER PUBLICATIONS

1. Ham, J. H. and D. E. Groth. 2011. Bacterial Panicle Blight: an Emerging Rice Disease. Louisiana Agriculture. 54(3): 16-17.

MANUSCRIPTS UNDER REVIEW

1. Gangadharan, A., M.-V. Sreerekha, J. Whitehill, J. H. Ham, and D. Mackey. 2012. The Pseudomonas syringae pv. tomato DC3000 type III effector HopM1 suppresses a non-canonical pathway that promotes PR-1 expression in Arabidopsis thaliana. New Phytologist

PUBLISHED ABSTRACTS FOR PRESENTATIONS IN SCIENTIFIC CONFERENCES

1. Caldera, M. A., J. Ham, and R. Singh. 2013. Development of a loop-mediated isothermal amplification for detection of Burkholderia glumae. Phytopathology 103 (6): S2.23

2. Shrestha, B. K., M. C. Rush, D. E. Groth, and J. Ham. Suppression of sheath blight development in rice and sclerotia germination of Rhizoctonia solani by rice-associated strains of Bacllus spp. Phytopathology 103 (5): S1.9 - 1.10

3. Karki, H. S. and J. H. Ham. 2013. Virulence deficiencies associated with the mutation of aroA and aroB genes of Burkholderia glumae strain 411gr-6. Phytopathology 103 (5): S1.6

4. J. H. Ham. 2013. The complex regulatory and signaling network for the virulence of the rice pathogenic bacterium Burkholderia glumae revealed by various molecular genetic and genomic studies. Phytopathology 103 (5): S1.5

5. Chen, R., F. Francis, J. Kim, and J. H. Ham. 2013. A transcriptome analysis to identify the regulon of the TofI/TofR quorum-sensing implies the presence of DSF-mediated signing system in Burkholderia glumae. Phytopathology 103 (5): S1.2

6. Osti, S., I. K. Barphaga, and J. H. Ham. 2013. The noble regulator, tepR, influences toxoflavin production and virulence in the rice pathogenic bacterium Burkholderia glumae. Phytopathology 103(5):S1.8

7. Melanson, R. A., I. K. Barphagha, and J. H. Ham. 2013. Genetic analyses of ntpR encoding a novel negative regulator for toxoflavin production in the rice-pathogenic bacterium Burkholderia glumae. Phytopathology 103(6):S2.192

8. Melanson, R. A., I. K. Barphagha, and J. H. Ham. 2013. Genetic analyses of ntpR encoding a LysR-family transcriptional factor for its negative regulatory function for the virulence of the rice pathogenic bacterium Burkholderia glumae. Phytopathology 103(5):S1.7

9. Ham, J. H. 2012. The global regulatory network for the virulence of Burkholderia glumae, the major causal agent of bacterial panicle blight of rice. Phyopathology 102: S4.148

10. Karki, H. S. and J. H. Ham. 2012. Naturally occurring avirulent strains of Burkholderia glumae isolated from rice fields fail to express multiple virulence genes. Phyopathology 102: S4.62

11. Chen, R., I. K. Barphagha, and J. H. Ham. 2012. tofM encoding a putative quorum-sensing modulator is required for the N-acyl homoserine lactone-independent biosynthesis of toxoflavin in Burkholderia glumae. Phytopathology 102: S4.22

12. Francis, F., J. Kim, and J. H. Ham. 2012. Genomic island-based plasticity among the genomes of rice pathogenic Burkholderia glumae and B. gladioli strains. Phyopathology 102: S4.41

13. Chen, R., I. K. Barphagha, and J. H. Ham. 2012. Regulation of the virulence factors by the TofI/TofR quorum-sensing system in Burkholderia glumae: The major pathogen causing bacterial panicle blight of rice. Phytopathology 102: S2.2.

14. Francis, F., J. Kim, and J. H. Ham. 2012. Comparative genomic analyses of the rice pathogenic Burkholderia glumae strains reveal plasticity among the genomes. Phytopathology 102: S2.4.

15. Ham, J. H., H. Karki, R. Chen, I. Kaur, F. Felix, J. Kim, and R. Melanson. 2012. Genetic dissection of the regulatory network that controls virulence genes of Burkholderia glumae. Phytopathology 102: S2.5.

16. Karki, H. S., B. K. Shrestha, D. E. Groth, and J. H. Ham. 2012. Genetic and phenotypic variations among Burkholderia glumae strains, the causal agent of bacterial panicle blight of rice. Phytopathology 102: S2.6.

17. Melanson, R. A., I. K. Barphagha, H. S. Karki, B. K. Shrestha, R. Chen, and J. H. Ham. 2012. Transposon mutagenesis of Burkholderia glumae 336gr-1 and screening of mutant derivatives identified ntpR, a novel negative regulator of toxoflavin production. Phytopathology 102: S2.8.

18. Shrestha, B. K., S. Wagle, M. C. Rush, and J. H. Ham. 2012. Antagonistic activities of rice-associated bacteria against Burkholderia glumae and Rhizoctonia solani. Phytopathology 102: S2.8.

19. Karki, H. S., I. K. Barphagha, and J. H. Ham. 2011. Functional characterization of the PidS/PidR two-component regulatory system of Burkholderia glumae. Phytopathology 101:S88.

20. Shrestha, B. K., H. S. Karki, D. E. Groth, M. C. Rush, and J. H. Ham. 2011. Suppression of bacterial panicle blight of rice by pretreatment with various chemical compounds. Phytopathology 101:S166.

21. Chen, R., I. Barphagha, and J. H. Ham. 2011. A genomics study of Burkholderia glumae genes regulated by quorum-sensing. Phytopathology 101:S264.

22. J. Ham, H. S. Karki, B. Shrestha, I. K. Barphagha, R. A. Melanson, R. Chen, D. E. Groth, X. Sha, H. Utomo, P. Subudhi, and M. C. Rush. 2011. Molecular genetic and genomic studies on bacterial panicle blight of rice and its causative agent Burkholderia glumae. Phytopathology 101:S266.

23. Karki, H. S., I. Kaur, and J. H. Ham. 2011. Role of melanin-like pigments in the virulence of Burkholderia glumae. Phytopathology 101:S266.

24. Melanson, R. A., R. S. Sanderlin, and J. H. Ham. Classification of strains of Xylella fastidiosa isolated from pecan in Louisiana as Xylella fastidiosa subsp. multiplex. Phytopathology 101:S267.

25. Shrestha, B. K., R. Nandakumar, M. C. Rush, and J. Ham. Expression of NAC-like transcription factor is involved in bacterial panicle blight resistance in rice. Phytopathology 101:S268.

26. Ham, J. H., I. Kauer, H. S. Karki, B. K. Shrestha, R. Melanson, R. Chen, and M. C. Rush. 2010. Identification of Novel Regulatory Genes of Burkholderia glumae for Virulence Factors. Phytopathology 100:S60.

27. Karki, H., A. Shahjahan, R. Nandakumar, M.C. Rush, and J. H. Ham. 2009. Characterization of naturally avirulent strains of Burkholderia glumae, the causative agent of bacterial panicle blight of rice. Phytopathology 99:S62.

28. Melanson, R. A., S. Gil, J. H. Ham, and R. S. Sanderlin. 2009. Insect transmission and genotypic variation of pecan pathogenic Xylella fastidiosa strains in Louisiana. Phytopathology 99:S83.

29. Ham, J. H., D. R. Majerczak, D. Mackey, D. L. Coplin. 2006. Characterization and functional analysis of WtsE, an AvrE-family type III effector protein. Phytopathology 96:S45.

30. Ham, J. H. and D. L. Coplin. 2003. The Lon protease is a negative regulator of the Hrp type III secretion system of Pantoea stewartii subsp. stewartii. Phytopathology 93:S32.

31. Quirino, B. F., J. H. Ham, B. B. Bonacci, and A. F. Bent. 2002. Functional analysis of RPS2 interaction with putative partners in disease resistance signal transduction. Phytopathology 92:S67.

32. Hammond, T. M., J. H. Ham, and N. P. Keller. 2002. Aspergillus and Arabidopsis, elucidating the role of the host in mycotoxin production. Phytopathology 92:S33.

33. Ham, J. H., B. Bonacci, G. Zabala, and A. Bent. 2001. Identification, characterization, and functional analysis of RPS2-interacting proteins of Arabidopsis thaliana. In 10th International Congress MPMI. 130.

34. Ham, J. H., G. Zabala, B. B. Bonacci, and A. F. Bent. 2000. Identification of RPS2-interacting proteins of Arabidopsis thaliana using a yeast two-hybrid system. Phytopathology 90:S332000.

35. Yu, I., J. H. Ham, G. Jurkowski, R. Smith, K. Fengler, S. Clough, A. Bent. 1999. DND1 and DND2: Arabidopsis loci conferring defense-no-death mutant phenotypes. In 9th International Congress MPMI, 21.13.

36. Ham, J. H., D. W. Bauer, and A. Collmer. 1998. Secretion and signal delivery to plant cells of Pseudomonas syringae Avr proteins by a cloned Erwinia chrysanthemi Hrp (type III) secretion system in Escherichia coli and further functional analysis of HarpinEch. In 7th International Congress of Plant Pathology, 1.6.13.

37. Collmer, A., J. R. Alfano, M. Ballantyne, A. O. Charkowski, W. -L. Deng, D. E. Fouts, and J. H. Ham. 1998. New approaches to finding bacterial Avr proteins and accessing their role in promoting parasitism. In 7th International Congress of Plant Pathology, 1.1.4S.

38. Fouts, D. E., J. R. Alfano, A. O. Charkowski, J. H. Ham, and A. Collmer. 1998. Assessing the ability of heterologously expressed hrp gene clusters to deliver Avr proteins and promote bacterial pathogenesis. In 7th International Congress of Plant Pathology, 1.6.17.

39. Ham, J. H., J. K. Kim, S.V. Beer, and A. Collmer. 1997. Cloning and characterization of the Erwinia chrysanthemi EC16 hecA and hecB genes that encode predicted hemolysin and hemolysin activator/transporter proteins and confer hemolytic activity. Phytopathology 87 (6) : S38.

40. Ham, J. H., D. W. Bauer, J. R. Alfano, and A. Collmer. 1996. Differential regulaton, secretion, and role in pathogenesis of the PelE, PelL, and HrpN proteins of Erwinia chrysanthemi EC16. In 8th International Congress MPMI,G-24.

41. Kim, J. F., J. H. Ham, D. W. Bauer, A. Collmer, and S. V. Beer. 1996. hrpN and hrcC operons of Erwinia chrysanthemi EC16 are flanked by plcA and a homolog of hemolysin activator genes. In 8th International Congress MPMI, G-29.

42. Collmer, A., J. R. Alfano, D. W. Bauer, G. M. Preston, A. O. Loniello, A. Conlin, J. H. Ham, H.-C. Huang, S. Gopalan, and S. Y. He. 1996. Secreted proteins, secretion pathways, and the plant pathogenicity of Erwinia chrysanthemi and Pseudomonas syringae. In 8th International Congress MPMI, S-49.

43. Ham, J. H., J. R. Alfano, and A. Collmer. 1995. Cloning of a novel pel gene from a pelABCEX pelX Erwinia chrysanthemi EC16 mutant using transposon Tn5tac1. Phytopathology 85 (10) : 1156.



 

 

 

 

updated 12/18/2013

Department of Plant Pathology & Crop Physiology
302 Life Science Building
Louisiana State University
Baton Rouge, LA 70803 
(225) 578-1464
 

Home | About | News | Faculty & Staff | Graduate Program | Research Projects | Links | Contact | Search | Application Info