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Resistance to rice blast (Pyricularia oryzae) caused by the expression of trichosanthin gene in transgenic rice plants transferred through agrobacterium method

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Chinese Science Bulletin

Abstract

The gene of trichosanthin has been transferred into rice plants through agrobacterium method. The single copy insertion and the expression of foreign gene have been proved in regenerated plants. In antifungal assay the degrees of rice blast (Pyricularia oryzae) infection of the transgenic plants expressing trichosanthin and expressingGUS gene as control have been evaluated. The differences such as the time of disease symptom observed, the number of infected plants and damaged leaves, the growth of infected plants of the two transgenic plants after being inoculated by rice blast (Pyricularia oryzae) are significant. The transgenic plants with trichosanthin gene grew faster than the plants withGUS gene, even when humidity environment was removed. The results show that the transgenic plants that expressed trichosanthin are able to delay the infection of rice blast compared with the plants as control. In addition, no damage caused by the expression of trichosanthin gene in transgenic plants has been observed.

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Authors and Affiliations

  1. National Laboratory of Protein Engineering and Plant Genetic Engineering, College of Life Science, Peking University, 100871, Beijing, China

    Xiaotian Ming, Lijiang Wang, Chengcai An, Huayi Yuan & Zhangliang Chen

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  1. Xiaotian Ming
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  2. Lijiang Wang
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  3. Chengcai An
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  4. Huayi Yuan
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  5. Zhangliang Chen
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Ming, X., Wang, L., An, C. et al. Resistance to rice blast (Pyricularia oryzae) caused by the expression of trichosanthin gene in transgenic rice plants transferred through agrobacterium method. Chin.Sci.Bull. 45, 1774–1778 (2000). https://doi.org/10.1007/BF02886265

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  • DOI: https://doi.org/10.1007/BF02886265

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