番茄白粉病(tomato powdery mildew)是一种世界性植物病害,最早发现于意大利,之后迅速蔓延到世界各地,严重影响番茄的产量和质量。因此,各国从未停止过对番茄白粉病的研究,并多集中在病原菌的鉴定上,但均未发现其有性阶段,这也给病原菌 Tomato powdery mildew is a worldwide plant disease, first discovered in Italy and then rapidly spread all over the world, seriously affecting the yield and quality of tomatoes. Therefore, all countries have never ceased their research on tomato powdery mildew and more focused on the identification of pathogenic bacteria, but none of them have found a sexual stage, which also gives pathogenic bacteria