Enhanced Resistance to Fungal and Bacterial Diseases Due to Overexpression of BSR1, a Rice RLCK, in Sugarcane, Tomato, and Torenia
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Chemistry
Molecular Biology
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Sugarcane smut caused by is one of the most devastating sugarcane diseases. Furthermore, causes severe diseases in various crops including rice, tomato, potato, sugar beet, tobacco, and torenia. However, effective disease-resistant genes against these pathogens have not been identified in target crops. Therefore, the transgenic approach can be used since conventional cross-breeding is not applicable. Herein, the overexpression of (), a rice receptor-like cytoplasmic kinase, was conducted in sugarcane, tomato and torenia. -overexpressing tomatoes exhibited resistance to the bacteria pv. DC3000 and the fungus whereas -overexpressing torenia showed resistance to in the growth room. Additionally, overexpression conferred resistance to sugarcane smut in the greenhouse. These three -overexpressing crops exhibited normal growth and morphologies except in the case of exceedingly high levels of overexpression. These results indicate that overexpression is a simple and effective tool for conferring broad-spectrum disease resistance to many crops.
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