摘 要：摘 要：植物内生细菌已成为国内外的研究热点，目前已从植物中分离得到许多不同种属的植物内生细菌，其中有的具有促生与防治病害等对宿主植物有利的作用，而一些则具有潜在的致病性。研究人员利用多种方法对植物内生细菌的内生定殖行为进行研究，发现了有意义的定殖规律，例如，某种植物内生细菌对其宿主的侵染能力明显强于另一种内生细菌。目前，尽管植物内生细菌还有不少问题有待解决，但它在农业上的巨大应用潜力业已彰显。
关键词：内生细菌; 共生定殖; 生物防治
Abstract: Abstract: Endophytic bacteria have become one of the most popular reseach topics, and many endophytic bacteria have been identified. Some of them benefit the hosts by growth-promoting and/or biological control, others are considered to be potential plant pathogen. Through different methods, researchers have found out some rules about endophytic colonization behaviour, e.g. one is more aggressive endophytic colonizer of its host than the other. Though there are still some problems of endophytic bacteria that have to be solved, the potential of their use in agriculture is conspicuous.
Key words: endophytic bacteria; symbiotic colonization; biological control
