Abstract: Klebsiella spp. is an important member of Enterobacteriaceae family. It has theoretical research value and broader development prospects in agricultural field and environmental management. This paper reviewed on several key identification characteristics for major species of Klebsiellas spp., researches and existing problems of Klebsiella spp. in improving plant utilization of nitrogen，phosphorus, iron and other nutrients, biological control and environmental management， which would provide a reference for further research and application of this bacteria.

Key words: Klebsiella spp., nitrogen fixation/phosphorus dissolving, siderophore, biological control, environmental pollution control

摘要： 克雷伯氏菌属(Klebsiella spp.)是肠杆菌科的重要成员，在农业及环境污染物治理等方面都具有理论研究价值和较广的开发应用前景。对克雷伯氏菌属的几个主要重要菌种的主要鉴别特征以及克雷伯氏菌在提高植物对氮、磷和铁等营养物质的利用、生物防治和环境治理方面的研究与存在问题进行综述可为克雷伯氏菌的进一步研究和应用提供参考。

关键词: 克雷伯氏菌, 固氮/溶磷, 铁载体, 生物防治, 环境污染物治理