The invention relates to antagonistic bacteria for the protection of plants against phytopathogenic bacteria and fungi. The isolated bacteria are of the species Paenibacillus polymyxa, Pseudomonas chlororaphis, Pseudomonas putida, Serratia plymuthica and Bacillus subtilis. They can be applied as a mixture or separately to control for example the following plant diseases: crown gall disease caused Agrobacterium tumefaciens in grape, diseases caused by Corynebacterium spp., Pseudomonas syringae and Xanthomonas campestris in tomato and cabbage, diseases caused by Botrytis cinerea in cucumber and tomato, powdery mildew caused by Erysiphales spp. in cucumber and tomato, damping-off diseases caused by Fusarium oxysporum in cucumber, melon and tomato, diseases caused by Helminthosporum sativum in cereals, the root-rot disease caused by Rhyzoctonia solani in cotton and beans, diseases caused by Sclerotium rolfsii in beans, Dactylium dendroides in mushrooms and others.
本发明涉及用于保护植物免受植物病原菌和真菌侵害的拮抗细菌。这些分离出来的细菌属于多粘芽孢杆菌(Paenibacillus polymyxa)、绿假单胞菌(Pseudomonas chlororaphis)、腐霉假单胞菌(Pseudomonas putida)、糙皮沙雷氏菌(Serratia plymuthica)和
枯草芽孢杆菌(Bacillus subtilis)。它们可以混合施用,也可以单独施用,例如用于防治以下植物病害:由农杆菌(Agrobacterium tumefaciens)引起的葡萄冠瘿病、由棒状杆菌(Corynebacterium spp、西红柿和卷心菜中由丁香假单胞菌和野油菜黄单胞菌引起的病害;黄瓜和西红柿中由灰霉病菌引起的病害;黄瓜和西红柿中由白粉病菌引起的病害;黄瓜和卷心菜中由酵母菌引起的病害。黄瓜和西红柿的白粉病,黄瓜、甜瓜和西红柿的镰孢菌(Fusarium oxysporum)引起的落叶病,谷物中的禾谷孢菌(Helminthosporum sativum)引起的病害,棉花和豆类中的Rhyzoctonia solani引起的根腐病,豆类中的Sclerotium rolfsii引起的病害,蘑菇中的Dactylium dendroides等。