Field-evolved resistance of pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), to transgenic Bacillus thuringiensis (Bt) cotton expressing crystal 1Ac (Cry1Ac) and Cry2Ab in India.
Sign Up to like & getrecommendations! Published in 2018 at "Pest management science"
DOI: 10.1002/ps.5038
Abstract: BACKGROUND Pink bollworm (PBW) adaptation to transgenic Bacillus thuringiensis (Bt) cotton expressing crystal 1Ac (Cry1Ac) (Bt-I) and Cry1Ac + Cry2Ab (Bt-II) was assessed in India during 2010-2017 in 38 districts of the 10 major cotton-growing… read more here.
Keywords: cotton; range; cry1ac cry2ab; resistance ... See more keywords
HearNPV Susceptibility in Helicoverpa armigera and Helicoverpa punctigera Strains Resistant to Bt Toxins Cry1Ac, Cry2Ab, and Vip3Aa.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of invertebrate pathology"
DOI: 10.1016/j.jip.2021.107598
Abstract: Genetically engineered crops expressing insecticidal toxins from Bacillus thuringiensis (Bt) have improved the management of targeted lepidopteran pests and reduced the use of insecticide sprays. These benefits explain an increasing adoption of Bt crops worldwide,… read more here.
Keywords: helicoverpa punctigera; helicoverpa; cry1ac cry2ab; armigera ... See more keywords
A Modified F2 Screen for Estimating Cry1Ac and Cry2Ab Resistance Allele Frequencies in Helicoverpa zea (Lepidoptera: Noctuidae)
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Economic Entomology"
DOI: 10.1093/jee/toac181
Abstract: Abstract Evaluating the frequency of resistance alleles is important for resistance management and sustainable use of transgenic crops that produce insecticidal proteins from Bacillus thuringiensis. Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) is a major crop pest… read more here.
Keywords: resistance allele; lepidoptera noctuidae; resistance; helicoverpa zea ... See more keywords
Cytotoxicity and binding profiles of activated Cry1Ac and Cry2Ab to three insect cell lines
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DOI: 10.1111/1744-7917.12451
Abstract: While Cry1Ac has been known to bind with larval midgut proteins cadherin, APN (amino peptidase N), ALP (alkaline phosphatase) and ABCC2 (adenosine triphosphate‐binding cassette transporter subfamily C2), little is known about the receptors of Cry2Ab.… read more here.
Keywords: midgut; cell lines; cry1ac cry2ab; cytotoxicity ... See more keywords
Alkaline phosphatase 2 is a functional receptor of Cry1Ac but not Cry2Ab in Helicoverpa zea
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DOI: 10.1111/imb.12556
Abstract: Although membrane‐bound alkaline phosphatases (ALPs) have been proposed as a receptor for Cry1Ac in a few lepidopteran species, their potential functions as a Cry2Ab receptor are yet to be verified. To determine if ALP2 also… read more here.
Keywords: receptor cry1ac; cry1ac cry2ab; cry1ac; zea ... See more keywords
Proteolysis activation of Cry1Ac and Cry2Ab protoxins by larval midgut juice proteases from Helicoverpa armigera
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DOI: 10.1371/journal.pone.0228159
Abstract: Proteolytic processing of Bacillus thuringiensis (Bt) Cry protoxins by insect midgut proteases is critical to their insecticidal activities against target insects. Although transgenic Bt cotton expressing Cry1Ac and Cry2Ab proteins have been widely used for… read more here.
Keywords: cleavage; cry2ab protoxins; midgut juice; cry1ac cry2ab ... See more keywords
Development of a Triple Gene Cry1Ac-Cry2Ab-EPSPS Construct and Its Expression in Nicotiana benthamiana for Insect Resistance and Herbicide Tolerance in Plants
Sign Up to like & getrecommendations! Published in 2017 at "Frontiers in Plant Science"
DOI: 10.3389/fpls.2017.00055
Abstract: Insect pest complex, cotton leaf curl disease and weeds pose major threat to crop production worldwide, including Pakistan. To address these problems, in the present study a triple gene construct harboring Cry1Ac, Cry2Ab, and EPSPS… read more here.
Keywords: cry1ac cry2ab; triple gene; construct;