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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