If you seal the tops of tomato plants in airtight plastic bags and expose one of them to a harmful leaf disease, the healthy plants will detect their neighbors' illness and begin making antibiotic compounds.
如果你用不透气的塑料袋把番茄们的茎叶部分密封起来,然后把一株番茄暴露在有害的叶子病毒里,健康的植物们就会检测到它们邻居得的病,然后开始产生抗生素。