Current Microbiology (2000) 40, 200-204

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C. Rang, L.A. Lacey and R. Frutos (2000)
The crystal proteins from Bacillus thuringiensis subsp. thompsoni display a synergistic activity against the codling moth, Cydia pomonella
Current Microbiology 40 (3), 200-204
Abstract: Crystal proteins from Bacillus thuringiensis subsp. thompsoni strain HnC are active against the codling moth, Cydia pomonella, a major pest of orchards. Inclusion bodies purified from strain HnC displayed an LC50 of 3.34 2 10m3 7g/7l. HnC-purified crystals were tenfold more active than Cry2Aa and Cry1Aa toxins, and 100-fold more toxic than Cry1Ab. The 34-kDa and 40-kDa proteins contained in HnC inclusion bodies were shown to act synergistically. The toxicity of crystal proteins produced by the recombinant B. thuringiensis strain BT-OP expressing the full-length native operon was about tenfold higher than that of the 34-kDa protein. When the gene encoding the non-insecticidal 40-kDa protein, which is not active, was introduced into the recombinant strain producing only the 34-kDa protein, the toxicity was raised tenfold and was similar to that of the strain BT-OP.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Lawrence A. Lacey

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cydia pomonella
Bacillus thuringiensis var. thompsoni (entomopathogen) Cydia pomonella