Insecticidal Activity, Growth Inhibitory and Biochemical Effects of Plant Lectins and Bacillus thuringiensis var. kurstaki against the Pink Bollworm, Pectinophora gossypiella
نویسندگان
چکیده
منابع مشابه
Cross-resistance of pink bollworm (Pectinophora gossypiella) to Bacillus thuringiensis toxins.
Two strains of pink bollworm (Pectinophora gossypiella) selected in the laboratory for resistance to Bacillus thuringiensis toxin Cry1Ac had substantial cross-resistance to Cry1Aa and Cry1Ab but not to Cry1Bb, Cry1Ca, Cry1Da, Cry1Ea, Cry1Ja, Cry2Aa, Cry9Ca, H04, or H205. The narrow spectrum of resistance and the cross-resistance to activated toxin Cry1Ab suggest that reduced binding of toxin to...
متن کاملControl of resistant pink bollworm (Pectinophora gossypiella) by transgenic cotton that produces Bacillus thuringiensis toxin Cry2Ab.
Crops genetically engineered to produce Bacillus thuringiensis toxins for insect control can reduce use of conventional insecticides, but insect resistance could limit the success of this technology. The first generation of transgenic cotton with B. thuringiensis produces a single toxin, Cry1Ac, that is highly effective against susceptible larvae of pink bollworm (Pectinophora gossypiella), a m...
متن کاملElectromechanical microinjection of pink bollworm Pectinophora gossypiella embryos increases survival.
We report and compare methods and apparatus for injection of pink bollworm, Pectinophora gossypiella (Saunders), embryos. Injection with an electromechanical device resulted in 59% survival of embryos. Previous techniques relying on a mechanical manipulator resulted in 8% survival. Pink bollworm (PBW) embryo injection technology is based in part on methods developed for injection and genetic tr...
متن کاملInactivated mariner-like elements (MLE) in pink bollworm, Pectinophora gossypiella.
We isolated multiple copies of mariner-like element (MLE) from the pink bollworm (PBW), Pectinophora gossypiella, a key lepidopteran cotton pest. Although all the MLE sequences contain multiple mutations accumulated in their transposase coding region, the consensus sequence revealed a putative ancestral transposase encoding 339 amino acid residues with a D,D(34)D motif, and 36 bp inverted termi...
متن کاملEffects of Resistance to Bt Cotton on Diapause in the Pink Bollworm, Pectinophora gossypiella
Fitness costs associated with resistance to Bacillus thuringiensis (Bt) crops are expected to delay the evolution of resistance. In a previous study where pink bollworm, Pectinophora gossypiella (Lepidoptera: Gelechiidae), larvae overwintered in outdoor insectaries, individuals from Bt-resistant strains had lower survival than individuals from Bt-susceptible strains or F1 progeny from crosses b...
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ژورنال
عنوان ژورنال: Alexandria Science Exchange Journal
سال: 2021
ISSN: 2536-9784
DOI: 10.21608/asejaiqjsae.2021.144238