Screen and Identification of Insecticidal Antibiotics Producing Strain and Studies on the Stability of Bioactive Substances

China Biotechnology

2007, Vol. 27

Issue (4): 54-58 DOI:

Screen and Identification of Insecticidal Antibiotics Producing Strain and Studies on the Stability of Bioactive Substances

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Abstract

By using Brine Shrimp as primary screening assay and silkworm as second screening assay, the strain of GX-29 with high insecticidal activity substances was selected from the soil. It was identified as Streptomyces fulvissimus based on analysis of 16S rDNA gene sequence. The insecticidal stability was also studied by means of Brine Shrimp tracking activity. The result shows that temperature, ultraviolet are not greatly affected the insecticidal activity, and its bioactivity kept steady in neutral and slight alkaline condition.

Key words： insecticidal activity Brine Shrimp screening assay stability

Received: 24 October 2006 Published: 25 April 2007

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. Screen and Identification of Insecticidal Antibiotics Producing Strain and Studies on the Stability of Bioactive Substances. China Biotechnology, 2007, 27(4): 54-58.

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https://manu60.magtech.com.cn/biotech/ OR https://manu60.magtech.com.cn/biotech/Y2007/V27/I4/54

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