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Enhanced Insect Susceptibility to Entomopathogens

總結: Researchers at Purdue University have developed a technology that can identify genes and proteins in termites that increase susceptibility to pathogens. Whereas much research and development have gone into non-specific chemical insecticides that attempt to brute force their way through the termites' defenses, this new technology aims to dismantle the defense outright. Using treatments of an immune-suppressive nicotinoid insecticide and fungi and bacterial pathogens, hundreds of genes that encode potential defense mechanisms have been identified; the expression of these genes can be suppressed, increasing the termites' susceptibility to pathogens. Several protist symbiont enzymes were also identified which may have played a central role in protecting termites from fungal entomopathogens, and a recombinant form of these enzymes may have uses as novel drugs to fight fungal infections.

技術優勢: More biorational and environmentally friendly than chemical insecticides Protein-based enzymatic treatment offers a more "organic" approach than conventional drugs

*Background: A termite population does not only pose a risk because of the significant structural damage they are capable of inflicting on buildings, crops, and forests, but their subterranean, eusocial lifestyle creates a breeding grounds for disease and microbial growth. Despite decades of research, no commercially viable biocontrol agent targeted at termites has been developed. Recent research has suggested termites possess superior defense mechanisms that provide them with virtual immunity against fungal and bacterial pathogens.

*Web Links: Purdue Office of Technology CommercializationPurdueInnovation and EntrepreneurshipMichael ScharfPurdue Entomology

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