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Application of Pantoea agglomerans strain Z01 to control Fusarium wilt and its effect on the quality parameters of rockets

文献类型： 外文期刊

作者： Liu, Wei-cheng 1 ; Chen, Zhi-chao 2 ; Zhang, Tao-tao 1 ; Lu, Cai-ge 1 ; Dong, Dan 1 ; Wu, Hui-ling 1 ; Zhang, Dian-pen 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Biocontrol Microbes Lab, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

2.Henan Polytech Univ, Jiaozuo City 454000, Henan, Peoples R China

关键词： Biological control;Fusariumwilt;P. agglomerans;Rocket

期刊名称：ANNALS OF MICROBIOLOGY （ 影响因子：2.112； 五年影响因子：2.151 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： An antagonistic bacterium, denoted as strain Z01, was isolated from suppressive soils and identified using fatty acid profile analysis and molecular tools. Its efficacy to control Fusarium oxysporum f. sp. conglutinans on rockets (cv. Eruca sativa) was investigated in the presence of the pathogen, and its effects on the growth and pigment contents of rockets, including the plant biomass and chlorophyll and carotenoid contents, were evaluated in the absence of the pathogen. Z01 was identified as Pantoea agglomerans (GenBank accession number is JX257179). Rockets were grown under greenhouse conditions for 21 days at 25 °C and 95 % relative humidity. When the antagonist suspension was applied at 10~8, 10~7 and 10~6 cells/ml by root-dipping for 20min before transplanting, the disease incidence was 23.5 %, 28.5 % and 60.0 %, respectively. The disease incidence of rockets treated with carbendazim was 22.5 %, and in the inoculated control, the disease incidence was 82.0 %. In the absence of the pathogen, compared with the average plant biomass (10.7 g/4 plants) of the uninoculated control, application of the antagonist at 10~8 or 10~7 cells/ml significantly increased the biomass of the rockets by 40.9 % and 39.1 %, respectively, suggesting that Z01 had an additional ability to promote plant growth beyond its role in Fusarium wilt control. This study indicated that P. agglomerans Z01 has a potential to control Fusarium wilt in rockets. This report is the first to describe the application of P. agglomerans to control Fusarium wilt.

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