A cellular gene as a double surveillance agent for plant to combat pathogen |
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| Authors: | Bin Li Hu Feng Qi Zhang Xian Zhang Yiguo Hong |
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| Institution: | 1.Research Centre for Plant RNA Signaling; College of Life and Environmental Sciences; Hangzhou Normal University; Hangzhou, PR China;2.School of Life Sciences; University of Warwick; Coventry, UK |
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| Abstract: | The tomato extreme resistance R-gene encodes Tm2/Tm22 protein that interacts with the tobamovirus movement protein (MP) to induce hypersensitive response (HR) resulting in local resistance. R-gene mediated local resistance requires a functional RbCS that interacts with MP, restricting virus local infection. RbCS-MP interaction is also required for tobamovirus systemic infection. “Loss-of-function” RbCS allows local but not systemic infection. Thus, RbCS, a cellular gene, acts as a double surveillance agent to protect plant from pathogenic attack, suggesting a previously un-recognized defense strategy in plants. |
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| Keywords: | immunity plant-tobamovirus interaction MP RbCS R gene Tm2/Tm22 |
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