Abstract
Four Bacillus thuringiensis delta-endotoxins, Cry3A, Cry4Aa, Cry11Aa, and Cyt1Aa, were found to exhibit low to moderate toxicity on the pea aphid, Acyrthosiphon pisum, in terms both of mortality and growth rate. Cry1Ab was essentially nontoxic except at high rates. To demonstrate these effects, we had to use exhaustive buffer-based controls.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Aphids / drug effects*
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Bacillus thuringiensis / pathogenicity*
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Bacillus thuringiensis Toxins
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Bacterial Proteins / biosynthesis
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Bacterial Proteins / toxicity*
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Endotoxins / biosynthesis
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Endotoxins / toxicity*
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Hemolysin Proteins / biosynthesis
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Hemolysin Proteins / toxicity*
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Pisum sativum / parasitology
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Survival Analysis
Substances
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Bacillus thuringiensis Toxins
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Bacterial Proteins
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Endotoxins
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Hemolysin Proteins
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insecticidal crystal protein, Bacillus Thuringiensis