National Taiwan University | College of Life Science

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>Home >Faculty >Shih-Tong Jeng
Shih-Tong Jeng, Professor
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Position Professor
Year of Birth 1959
Highest Degree Ph.D, Department of Biochemistry, University of Illinois at Champaign-Urbana
Experience Postdoctor, Department of Biochemistry and Biophysics, University of California, at San Francisco
Specialty Molecular Biology, Plant Physiology, Biochemistry
E-mail stjeng@ntu.edu.tw
Laboratory Life Science Building R1018
Telephone 02-33662538
Current Research Interests :

1^ Characterization of the wound-inducible genes and pathways in sweet potato
2^ Cloning and characterization of senescence-related genes in Oncidium spp

Laboratory Introduction
  • Characterization of the wound-inducible genes and pathways in sweet potato
    The major aim of our laboratory is to understand the molecular events involved in signal transduction and interaction in plants. In particular, wound-inducible cDNAs and proteins were isolated from the subtraction cDNA library and protein 2D electrophoresis, and used as molecular probes to investigate the transduction pathway of wounding signals within sweet potato. The effects of signal transducers, hydrogen peroxide and nitric oxide on gene expression of sweet potato were studied in details. Also, the roles of calcium ion in the transduction pathway within plants were examined. These studies may facilitate plants to protect themselves from invasion by pathogens and herbivores.
  • Cloning and characterization of senescence-related genes in Oncidium spp
    The cut flower of Oncidium 'Gower Ramsey' is one of the most important export flowers in Taiwan. After Oncidium flowers are harvested, the operation of classification and package of flowers always results in the dislodgment of pollinia cap. Consequently, ethylene is produced from flowers within hours, and the senescence of flowers is stimulated. Although the massive production of Oncidium cut flowers is in the late summer, the senescence of Oncidium cut flower is enhanced due to the high temperature. Therefore, it is urgent to develop an efficient and safe mean to delay Oncidium senescence and decrease flower wilt. This project is planned to isolate ACC synthase cDNAs from Oncidium by reverse transcription-polymerase chain reaction, and other senescence-related cDNAs by differential display. The antisense or RNAi of these genes are then transferred into Oncidium by agrobacteria to prevent or delay the occurrence of senescence of Oncidium.
Selected Publications  

Li, Y.-C., Wan, W.-L., Lin, J.-S., Kuo, Y.-W., King, Y.-C., Chen, Y.-C., Jeng, S.-T. * (2016) Signal transduction and regulation of IbpreproHypSys in sweet potato. Plant Cell Environ.

Wang, H.-M., To, K.-Y., Lai, H.-M., Jeng, S.-T. * (2015) Modification of flower color by suppressing ]-ring carotene hydroxylase genes in Oncidium. Plant Biology (accepted).

Kuo, T. C.-Y., Chen, C.-H., Chen, S.-H., Lu, I.-H., Huang, L.-C., Lin, C.-Y., Chen, C.-Y., Lo, H.-F., Jeng, S.-T., Chen, L.-F. O. * (2015) The Effect of Red Light and Far-Red Light Conditions on Secondary Metabolism in Agarwood. BMC Plant Biology 15, 139.

Chen, C.-H., Kuo, T. C.-Y., Yang, M.-H., Chien, T.-Y., Chu, M.-., Huang, L.-C., Chen,C.-Y., Lo, H.-F., Jeng, S.-T., Chen, L.-F. O. * (2014) Identification of cucurbitacins and assembly of a draft genome for Aquilaria agallocha. BMC Genomics 15, 578.

Lin, J.-S., Lin, C.-C., Li, Y.-C., Wu, M.-T., Tsai, M.-H., Hsing, Y.-I. C., Jeng, S.-T.* (2013) Interaction of small RNA-8105 and the Intron of IbMYB1 RNA Regulates IbMYB1 Family Genes through Secondary siRNAs and DNA Methylation after Wounding. The Plant Journal, doi: 10.1111/tpj.12238.

Lin, J.-S., Lin, C.-C., Lin,H.-H., Chen, Y.-C. and Jeng, S.-T.* (2012) MicroR828 regulates lignin and H2O2 accumulation in sweet potato on wounding. New Phytologist 196, 427-440

Chang, W. C., Liu, K. L., Hsu, F. C., Jeng, S. T., Cheng, Y. S. * (2012) Ipomoelin, a jacalin-related lectin with a compact tetrameric association and versatile carbohydrate binding properties regulated by its N terminus. PLoS ONE 7(7):e40618.

Lin, C.-C., Jih, P-J, Lin, H.-H., Lin, J.-S., Chang, L.-L., Shen, Y.-H., Jeng, S.-T. (2011) Nitricoxide activates superoxide dismutase and ascorbate peroxidase to repress the cell death induced by wounding. Plant Molecular Biology 77, 235-249

Lin, C.-C., Chu, C.-F., Liu, P.-H., Lin, H.-H., Liang, S.-C., Hsu, W.-E., Lin, J.-S., Wang, H.-M., Chang, L.-L., Chien, C.-T., Jeng, S.-T. (2011) Expression of an Oncidium Gene Encoding a Patatin-Like Protein Delays Flowering in Arabidopsis by Reducing Gibberellin Synthesis. Plant and Cell Physiology 52, 421-435

Lin, H.-H., Huang, L.-F., Su, H.-C. Jeng, S.-T. (2009) Effects of the multiple polyadenylation signal AAUAAA on mRNA 30-end formation and gene expression. Planta 230, 699-712.

Chen, Y.-C., Lin, H.-H. and Jeng, S.-T. (2008) Calcium influxes and mitogen-activated protein kinase kinase activation mediate ethylene inducing ipomoelin gene expression in sweet potato. Plant, Cell and Environments 31, 62-72.

Chen ,Y.-C., Chang, H.-S., Lai, H.-M. and Jeng, S.-T. (2005) Characterization of the wound-inducible protein ipomoelin from sweet potat. Plant, Cell and Environments 28, 251-259.

Liu, Y.-C., Lin, S.-H., Lai, H.-M., and Jeng, S.-T. (2005) Detection of Genetically modified soybean and its product tou-kan by polymerase chain reaction with dual pairs of DNA primers. European Food Research and Technology 221, 725-730.

Jih, P-J, Chen, Y-C and Jeng, S.-T. (2003) Involvement of Hydrogen Peroxide and Nitric Oxide in Expression of the Ipomoelin Gene from Sweet Potato. Plant Physiology 132, 1-9.

Chen, Y.-C., Tseng, B.-W., Huang, Y.-L. Liu, Y.-C. and Jeng, S.-T. (2003) Expression of the ipomoelin gene from sweet potato is regulated by dephosphorylated proteins, calcium ion, and ethylene. Plant, Cell and Environments 26, 1373-1383.

Courses taught 
Molecular Biology
Biochemistry
Cell Biology
Gene Regulation
Lab Members

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