Results 1 to 10 of about 46,961 (117)

Molecular Genetic Basis of Lab- and Field-Selected Bt Resistance in Pink Bollworm. [PDF]

open access: yesInsects, 2023
Transgenic crops producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) control some important insect pests. However, evolution of resistance by pests reduces the efficacy of Bt crops. Here we review resistance to Bt cotton in the
Fabrick JA   +3 more
europepmc   +2 more sources

A Novel Reference for Bt-Resistance Mechanism in Plutella xylostella Based on Analysis of the Midgut Transcriptomes. [PDF]

open access: yesInsects, 2021
The diamondback moth, Plutella xylostella, is a lepidopteran insect that mainly harms cruciferous vegetables, with strong resistance to a variety of agrochemicals, including Bacillus thuringiensis (Bt) toxins.
Xiong L   +10 more
europepmc   +2 more sources

Evaluating cross-resistance and synergy between Vip3Aa and Cry proteins from Bt in six strains of Helicoverpa zea derived via F<sub>2</sub> screens. [PDF]

open access: yesCrop Health
Transgenic crops producing insecticidal Bacillus thuringiensis (Bt) proteins have revolutionized the control of some pests. However, the evolution of resistance by pests has reduced the efficacy of Bt crops.
Wang Y   +5 more
europepmc   +2 more sources

Fitness Costs and Incomplete Resistance Associated with Delayed Evolution of Practical Resistance to Bt Crops

open access: yesInsects, 2023
Insect pests are increasingly evolving practical resistance to insecticidal transgenic crops that produce Bacillus thuringiensis (Bt) proteins. Here, we analyzed data from the literature to evaluate the association between practical resistance to Bt ...
Yves Carrière, Bruce E. Tabashnik
doaj   +1 more source

Involvement of an Enhanced Immunity Mechanism in the Resistance to Bacillus thuringiensis in Lepidopteran Pests

open access: yesInsects, 2023
Bacillus thuringiensis (Bt) is the safest, economically successful entomopathogen to date. It is extensively produced in transgenic crops or used in spray formulations to control Lepidopteran pests.
Zeyu Xiao   +4 more
doaj   +1 more source

Dominant inheritance of field-evolved resistance to Bt corn in Busseolafusca. [PDF]

open access: yesPLoS ONE, 2013
Transgenic crops expressing Bacillus thuringiensis (Bt) toxins have been adopted worldwide, notably in developing countries. In spite of their success in controlling target pests while allowing a substantial reduction of insecticide use, the sustainable ...
Pascal Campagne   +4 more
doaj   +1 more source

Early warning of cotton bollworm resistance associated with intensive planting of Bt cotton in China. [PDF]

open access: yesPLoS ONE, 2011
Transgenic crops producing Bacillus thuringiensis (Bt) toxins kill some key insect pests, but evolution of resistance by pests can reduce their efficacy.
Haonan Zhang   +7 more
doaj   +1 more source

Resistance to Bt Maize by Western Corn Rootworm: Effects of Pest Biology, the Pest–Crop Interaction and the Agricultural Landscape on Resistance

open access: yesInsects, 2021
The western corn rootworm, Diabrotica virgifera virgifera LeConte, is among the most serious pests of maize in the United States. Since 2003, transgenic maize that produces insecticidal toxins from the bacterium Bacillus thuringiensis (Bt) has been used ...
Aaron J. Gassmann
doaj   +1 more source

Climate change, transgenic corn adoption and field-evolved resistance in corn earworm [PDF]

open access: yesRoyal Society Open Science, 2017
Increased temperature anomaly during the twenty-first century coincides with the proliferation of transgenic crops containing the bacterium Bacillus thuringiensis (Berliner) (Bt) to express insecticidal Cry proteins.
P. Dilip Venugopal, Galen P. Dively
doaj   +1 more source

Bacillus thuringiensis and Chlorantraniliprole Trigger the Expression of Detoxification-Related Genes in the Larval Midgut of Plutella xylostella

open access: yesFrontiers in Physiology, 2021
Background: Diamondback moth (DBM), Plutella xylostella (L.), has developed resistance to many insecticides. The molecular mechanism of DBM resistance to Bt-G033A combined with chlorantraniliprole (CL) remains undefined.Methods: In this study, field ...
Muhammad Zeeshan Shabbir   +8 more
doaj   +1 more source

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