文献类型： 外文期刊
作者： Shi, Yingwu 1 ; Lou, Kai 1 ; Li, Chun 2 ;
作者机构： 1.Xinjiang Acad Agr Sci, Inst Microbiol, Urumqi 830091, Xinjiang, Peoples R China
2.Shihezi Univ, Coll Agron, Key Lab Green Chem Proc Xinjiang Prod & Construct, Shihezi 832003, Xinjiang, Peoples R China
关键词： Agrichemicals
期刊名称：BIOLOGY AND FERTILITY OF SOILS （ 2020影响因子：6.432； 五年影响因子：6.332 ）
收录情况： SCI
摘要： Three plant-growth-promoting isolates of endophytic bacteria from sugar beet roots produced indole-3-acetic acid (IAA) in vitro in a chemically defined medium. The three isolates were selected from 221 endophytic bacteria isolated from surface-disinfected beet roots and evaluated for potential to produce IAA and to promote beet growth under gnotobiotic and glasshouse conditions. The inoculation of roots of beet by three selected bacteria isolates significantly increased plant height fresh and dry weights and number of leaves per plant, as well as levels (p < 0.01) of phytormones compared with control plants. In the glasshouse test, the three selected bacterial isolates were recovered from inside roots in all samplings, up to 8 weeks after inoculation, indicating that the roots of healthy beet may be a habitat for these endophytic bacteria.
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