Dr. Yang's teaching responsibilities include a seminar in Oriential medicinal plant and bioconversion, and an agricultural biotechnology colloquium.

Research

Dr. Yang's research members are composed with forty including post doc, PhD and M.S course students, mainly focused on ginseng using molecular biological technique. Recently four different teams(project) are managed:

First major team project is taxonomic study about new bacteria and its bioconversion of major ginsenoside to high-functional minor ginsenoside.
A second team project is that by using 20,000 EST library, saponin biosysthesis related genes are cloned by using vector system. Moreover, the cellular expression of specific gene and effects are being studied by abiotic and biotic stress.
A third team project is designed to develop the specific marker to differentiate various ginseng cultivars. By real time PCR, multiplex PCR, and other SNP technique, rapid and efficient detection methods are being evaluated.
A fourth team project is technology for analysis of saponin, pesticide and heaval metal. To develop other new ginsenoside for industrialized food items, microbe are used for conversion and new high functional ginseng saponine is being studied.

1. H.-T. WANG, H. SUN1, W.-S. KWON, H.-Z. JIN2, & D.-C. YANG. Molecular identification of the Korean ginseng cultivar "Chunpoong" using the mitochondrial nad7 intron 4 region 2009 Mitochondrial DNA 20(2-3): 41-45

2. M.-K. Kim, S. Sathiyaraj, R. Krishna Pulla and D.-C. Yang. Brevibacillus panacihumi sp. nov., isolated from soil of a ginseng field. 2009 International Journal of Systematic and Evolutionary Microbiology 59:1227-1231

3. M.-K. Kim, M.-J. Park, W.-T. Lim and D.-C. Yang. Aeromicrobiun ginsengisoli sp. nov., a bacterium isolated from a ginseng field. 2008. International Journal of Systematic and Evolutionary Microbiology 58:2025-2030

4. M.-K. Kim, Y.-J. Kim, H.-B. Kim, S.-Y. Kim, T.-H. Yi and D.-C. Yang. Curtobacterium ginsengisoli sp. nov., a bacterium isolated from soil of a ginseng field 2008. International Journal of Systematic and Evolutionary Microbiology 58: 2393-2397

5. Y.-J. Kim, J.-S. Shim, P. R. Krishna, S.-Y. Kim, J.-G. In, M.-K.Kim, D.-C. Yang. Isolation and characterization of a glutaredoxin gene from Panax ginseng C.A. Meyer. 2008. Plant Mol biol Rep26:335-349

6. M.-K. Kim, Y.-A. Kim, M.-J. Park and D.-C. Yang.Paenibacillus ginsengihumi sp.nov., a bacterium isolated from soil in a ginseng field. 2008. International Journal of Systematic and Evolutionary Microbiology. 58: 1164-1168

7. R. krishna Pulla, Y.-J. Kim, M.- K. Kim, K. Selvi, J.-G. In and D. -C. Yang. Isolation of a Novel Dehydrin Gene from Codonopsis lanceolata and Analysis of its Response to Abiotic Stresses. 2008. BMB Reports. 338-343

8. M. Purev, M.- K. Kim, N. Samdan and D. -C. Yang. Isolation of a Novel Fructose-1,6-Bisphosphate Aldolase Gene from Codonopsis lanceolata and Analysis of the Response of This Gene to Abiotic Stresses. 2008. Molecular Biology. 42(2):179-186

9. M.- K. Kim, R. Krishna Pulla, S.-Y. Kim, T.-H. Yi, N.-K. Soung and D. -C. Yang. Sanguibacter soli sp.nov., isolated from soil of a ginseng field. 2008. International Journal of Systematic and Evolutionary Microbiology 58: 538-541

10. M.-J. Park, M.- K. Kim, W.T. Im, T.-H. Yi, S.-Y. Kim, N.-K. Soung and D. -C. Yang. Microbacterium ginsengisoli sp. nov., a beta-glucosidase prodcing bacterium isolated from soil of a ginseng field. 2008. International Journal of Systematic and Evolutionary Microbiology 58:429-433

11. M.- K. Kim, Y.-A. Kim, Y.-J. Kim, N.-k. Soung, T.-H. Yi, S.-Y.Kim and D. -C. Yang. Parapedobacter soli sp. nov., isolated from soil of a ginseng field. 2008. International Journal of Systematic and Evolutionary Microbiology 58:337-340

12. L.-Q. Cheng, J.- R. Na, M.- H. Bang, M.- K. Kim, D. -C. Yang . Conversion of major ginsengoside Rb1 to 20(S)-ginsenoside Rg3 by Microbacterium sp. GS514. 2008. Phytochemistry 69:218-224

13. H.-B. Kim, M.-J. Park, H.-C. Yang, D.-S. An, H.-Z. Jin and D. -C. Yang. Burkholderia ginsengisoli sp. nov., a-glucosidase-producing bacterium isolated from soil of a ginseng field. Int J Syst Evol microbiol 56: 2529-2533.

14. L.-Q. Cheng, M.-K. Kim, J.-W. Lee, Y.-J. lee, D.-C. Yang. Conversion of major ginsenoside Rb1 to ginsenoside F2 by Caulobacter leidyia GP45. 2006. Biotechnol Lett 28:1121-1127

15. M. K. Kim, W.T. Im, D. -C. Yang. Thermomonas koreensis sp. nov., a mesophilic bacterium isolated from a ginseng field. 2006. Int J Syst Evol Microbiol International Journal of Systematic and Evolutionary Microbiology 56:1615-1619.

16. M.-J. Park, M. K. Kim, J.-G. In, D. -C. Yang. Molecular identification of Korean ginseng by amplification refractory mutation system (ARMS)-PCR. 2006. Food Research Internatinal 39:568-574.

17. J.-W. Lee, W.-T. Im, M. K. Kim, H.-B. Kim, Y.-J. Lee, H. Son, L. Q. Cheng, and D. -C. Yang. Lysobacter koreensis sp. nov., a bacterium isolated from a ginseng field. 2006. Int J Syst Evol Microbiol 56:231-235

18. D. -C. Yang, W.-T Im, M. K. Kim, H. Ohta and S.-T. Lee. Sphingomonas soli sp. nov., a β-glucosidase-producing bacteium i0n the family Sphingomonadaceae in α-4 subclass of the Proteobacteria. 2006. Int J Syst Evol Microbiol 56:703-707.

19. M.-K.Kim, B.-S. Lee, J.-G. In, D. -C. Yang. Comparative analysis of leaf expressed sequence tags (ESTs) of oriental medicinal plant ginseng. 2006. Plant Cell Reports 21:599-606.

20. M. K. Kim, J. W. Lee, K. Y. Lee, D. -C. Yang. Microbial Conversion of Major ginsenoside Rb1 to Pharmaceutically Active Minor Ginsenoside Rd. 2005. The Journal of microbiolgy 43(5): 456-462