文献类型： 外文期刊

作者： Hao, Bian-Qing ¹ ; Ma, Li-Ping ² ; Qiao, Xiong-Wu ² ;

作者机构： 1.Shanxi Univ, Inst Loess Plateau, Taiyuan 030006, Peoples R China

2.Shanxi Acad Agr Sci, Inst Agroprod Qual Safety & Testing Technol, Taiyuan 030031, Peoples R China

期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.188； 五年影响因子：2.197 ）

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收录情况： SCI

摘要： Bacillus subtilis B96-II is a broad-spectrum biological control strain. It effectively suppresses soil-borne fungal diseases in vegetables. A green fluorescence protein (GFP) was expressed in B96-II to detect migration of B96-II into the root and stem of asparagus. The GFP-tagged B96-II (B96-II-GFP) strain exhibited bright green fluorescence under a fluorescence microscope. GFP was stable and had no apparent effects on the growth of the strain. Asparagus plants were planted in the soil inoculated with B96-II-GFP. Our results showed that B96-II-GFP was detected in both the root and stem 15, 30, and 45 days after the asparagus seedlings were planted. B96-II-GFP was also detected in leaves but at a lower concentration. The highest concentration was detected in 15 days, and the number of bacteria decreased subsequently irrespective of duration of growth or sampling period. The highest concentration of B96-II-GFP was present in the root base suggesting that the root base served as the hub of bacterial migration from the soil to the stem.