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Volume 12 Issue 5
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Article Navigation >  Forest Research  > 1999 >  12(5): 467-473

Citation:
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The Ecological Distribution of Bacillus thuringiensis of the Northwest Arid Region in China

  • 1.

    The Research Institute of Forestry, CAF, Beijing 100091, China

  • 2.

    The Research Institute of Forest Ecology, Environment and Protection, CAF, Beijing 100091, China

  • Received Date: 1999-02-10
  • The 260 forest soil samples were collected from 11 natural reserves of the northwest arid region in China. The soil pH,moisture content,hydrotytic N,efficient P,availabe K, total N, and organic matter of the soils were determined. The ecological factor of 11 natural reserves were also investigated. The number and distribution of both Bacillus and Bacillus thuringiensis were surveyed.The 42 strains of B.thuringensis were isolated from the soil samples.The ratio of the number of the soil samples containing B.thuringensis to number of total soil samples tested is 11.53%. The ratio of the number of B.thuringensis isolated to the number of sporoforming Bacillus examed is 2.18%.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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The Ecological Distribution of Bacillus thuringiensis of the Northwest Arid Region in China

  • 1. The Research Institute of Forestry, CAF, Beijing 100091, China
  • 2. The Research Institute of Forest Ecology, Environment and Protection, CAF, Beijing 100091, China
  • Received Date: 1999-02-10
  • Available Online: 2012-03-17

Abstract: The 260 forest soil samples were collected from 11 natural reserves of the northwest arid region in China. The soil pH,moisture content,hydrotytic N,efficient P,availabe K, total N, and organic matter of the soils were determined. The ecological factor of 11 natural reserves were also investigated. The number and distribution of both Bacillus and Bacillus thuringiensis were surveyed.The 42 strains of B.thuringensis were isolated from the soil samples.The ratio of the number of the soil samples containing B.thuringensis to number of total soil samples tested is 11.53%. The ratio of the number of B.thuringensis isolated to the number of sporoforming Bacillus examed is 2.18%.

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