期刊论文

Bei-Bei, G.

中文

农业资源与环境学报

2095-6819

2020

37

3

407-412

10.13254/j.jare.2019.0473

Cooperative Innovation Project of Agricultural Science and Technology Innovation Program of CAAS（CAAS-XTCT2016015)；Science and Technology Major Project of Guangxi（Guike AA18242026)；Specific Research Project of Guangxi for Research Bases and Talents（Guike AD18126005）. 收稿日期：2019-09-23 录用日期：2019-12-25 作者简介：王 威（1998—），男，湖北宜昌人，研究方向为植物病害生物防治。E-mail：100699810?@qq.com *通信作者：葛蓓孛 E-mail：gbbcsx@126.com 基金项目：中国农业科学院科技创新工程协同创新任务 （ CAAS-XTCT2016015） ；广西科技重大专项 （ 桂科AA18242026） ；广西科技基地和人才专项 （桂科AD18126005） Project supported： CooperativeInnovationProjectofAgriculturalScienceandTechnologyInnovationProgramofCAAS（ CAAS-XTCT2016015） ； Science and Technology Major Project of Guangxi（ Guike AA18242026 ） ； Specific Research Project of Guangxi for Research Bases and Talents（ Guike AD18126005）

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为筛选出一株具有微生物源植物调节剂功能的细菌,并探讨其潜在的生物功能,利用平板涂布法以及16S rRNA鉴定技术对菌株进行分离、鉴定;同时使用该菌株发酵液对番茄的种子和幼苗分别进行浸种和灌根处理,并进行农艺指标测定。结果表明:经鉴定该菌株为烟草肠杆菌,其发酵液对番茄种子的萌发、幼苗的生长具有显著的促进作用;发酵液浓度为1×104cfu·mL-1时促生效果最好,与对照相比,根长、株高、干质量和鲜质量分别增加63.42%、46.17%、150.00%和144.83%。研究结果可为该菌株开发为微生物肥料或微生物源植物生长调节剂提供技术支持。

：To screen for a bacterial strain with plant growth promotion functions and to explore its potential biological functions, strains were isolated and identified via the plate coating method and 16S rRNA identification technology in the present study. Tomato seeds and seedlings were treated using fermentation broth and biological agronomic indexes were determined. The strain was identified as Enterobac⁃ ter tabaci, and the fermentation broth significantly promoted the germination and seedling growth of tomato seeds. Fermentation broth at a conc...