Cry9Ca1 Toxin, a Bacillus thuringiensis Insecticidal Crystal Protein with High Activity against the Spruce Budworm (Choristoneura fumiferana)
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چکیده
The Cry9Ca1 toxin from Bacillus thuringiensis was significantly more toxic to spruce budworm (Choristoneura fumiferana) than the Cry1Ab6, Cry1Ba1, Cry1Ca2, Cry1Da1, Cry1Ea1, and Cry1Fa2 toxins. It displayed high activity against silkworm (Bombyx mori) but was not toxic to black army cutworm (Actebia fennica) or gypsy moth (Lymantria dispar). The Cry9Ca1 is the most effective spruce budworm toxin known to date and may offer promise for control and resistance management of that species.
منابع مشابه
Cry9Ca1 Toxin, a Bacillus thuringiensis Insecticidal Crystal Protein with High Activity against the Spruce Budworm (Choristoneura fumiferana).
The Cry9Ca1 toxin from Bacillus thuringiensis was significantly more toxic to spruce budworm (Choristoneura fumiferana) than the Cry1Ab6, Cry1Ba1, Cry1Ca2, Cry1Da1, Cry1Ea1, and Cry1Fa2 toxins. It displayed high activity against silkworm (Bombyx mori) but was not toxic to black army cutworm (Actebia fennica) or gypsy moth (Lymantria dispar). The Cry9Ca1 is the most effective spruce budworm toxi...
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1 In the present study, we documented the lethal and sublethal effects of the entomopathogen Btk on spruce budworm and its progeny under various environmental conditions. We hypothesized that aerial spray of Bacillus thuringiensis ssp. kurstaki (Btk) could affect the biological performance of the surviving spruce budworm (Choristoneura fumiferana Clem.) populations and their progenies and that ...
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BACKGROUND Spruce budworm, Choristoneura fumiferana (Clem.), causes cumulative defoliation and hence annual growth loss of the balsam fir, Abies balsamea (L.) Mill, host tree. Annual growth increments of mixed balsam fir stands were measured by stem analysis over a 9 year period (1994-2002), when Bacillus thuringiensis ssp. kurstaki (Btk) was applied to control spruce budworm defoliation. With ...
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