DuPont Pioneer researchers discovered a protein from a
non-Bacillus-thuringiensis (Bt) bacterium source that shows insecticidal
control of western corn rootworm (WCR) in North America and Europe.
The researchers said that the insecticidal protein, designated IPD072Aa, was
isolated from Pseudomonas chlororaphis. Transgenic corn plants expressing
IPD072Aa showed protection from WCR insect injury under field conditions.
The researchers said the protein could be a critical component for managing
corn rootworm in future corn seed product offerings, and suggests that
bacteria other than Bt are alternative sources of insecticidal proteins for
insect control trait development
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