PDF(Pubmed)
Abstract：
Tomato (Solanum lycopersicum) is one of the world\'s most important food crops, and as such, its production needs to be protected from infectious diseases that can significantly reduce yield and quality. Here, we survey the effector-triggered immunity (ETI) landscape of tomato against the bacterial pathogen Pseudomonas syringae. We perform comprehensive ETI screens in five cultivated tomato varieties and two wild relatives, as well as an immunodiversity screen on a collection of 149 tomato varieties that includes both wild and cultivated varieties. The screens reveal a tomato ETI landscape that is more limited than what was previously found in the model plant Arabidopsis thaliana. We also demonstrate that ETI eliciting effectors can protect tomato against P. syringae infection when the effector is delivered by a non-virulent strain either prior to or simultaneously with a virulent strain. Overall, our findings provide a snapshot of the ETI landscape of tomatoes and demonstrate that ETI can be used as a biocontrol treatment to protect crop plants.
摘要：
番茄是世界上最重要的粮食作物之一,因此，它的生产需要受到保护，免受可能显著降低产量和质量的传染病的影响。这里,我们调查了番茄对细菌病原体丁香假单胞菌的效应子触发免疫（ETI）景观。我们对五个栽培番茄品种和两个野生近缘种进行全面的ETI筛选，以及对149个番茄品种的免疫多样性筛选，其中包括野生和栽培品种。屏幕显示的番茄ETI景观比以前在模型植物拟南芥中发现的更为有限。我们还证明，当效应子在毒株之前或与毒株同时被非毒株递送时，ETI引发效应子可以保护番茄免受丁香假单胞菌感染。总的来说,我们的发现提供了番茄ETI景观的快照，并证明ETI可以用作生物防治处理来保护作物。
