ArticlePloS one2017
Effects of Soil Salinity on the Expression of Bt Toxin (Cry1Ac) and the Control Efficiency of Helicoverpa armigera in Field-Grown Transgenic Bt Cotton.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 56 citations in OpenAlex.
- Day/night temperature fluctuations delay the high-temperature-induced decline in Cry1Ac endotoxin concentration in cotton squares.Frontiers in plant science · 2026Article
- Effect of herbivore stress on transgene behaviour in maize crosses with different genetic backgrounds:Environmental sciences Europe · 2023Article
- Individual and combined effects of land use and weeds on Cry1Ab/c protein expression and yield of transgenicGM crops & food · 2022Article
- An Insight into Abiotic Stress and Influx Tolerance Mechanisms in Plants to Cope in Saline Environments.Biology · 2022Review
- Low temperature decreased insecticidal protein contents of cotton and its physiological mechanism.Frontiers in plant science · 2022Article
- Fitness of Insect-resistant transgenic rice T1C-19 under four growing conditions combining land use and weed competition.GM crops & food · 2021Article
- Enhanced yield performance of transgenicGM crops & food · 2020Article
- Expression of Bt Protein in Transgenic Bt Cotton Plants and Ecological Fitness of These Plants in Different Habitats.Frontiers in plant science · 2020Article
- Article
- Fitness Cost of TransgenicFrontiers in plant science · 2018Article
- Impacts of soil salinity on Bt protein concentration in square of transgenic Bt cotton.PloS one · 2018Article
- Effect of NaCl-stressed Bacillus thuringiensis (Bt) cotton on the feeding behaviors and nutritional parameters of Helicoverpa armigera.PloS one · 2018Article
- Climate change, transgenic corn adoption and field-evolved resistance in corn earworm.Royal Society open science · 2017Article
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
An increasing area of transgenic Bacillus thuringiensis (Bt) cotton is being planted in saline-alkaline soil in China. The Bt protein level in transgenic cotton plants and its control efficiency can be affected by abiotic stress, including high temperature, water deficiency and other factors. However, how soil salinity affects the expression of Bt protein, thus influencing the control efficiency of Bt cotton against the cotton bollworm (CBW) Helicoverpa armigera (Hübner) in the field, is poorly understood. Our objective in the present study was to investigate the effects of soil salinity on the expression of Bt toxin (Cry1Ac) and the control efficiency of Helicoverpa armigera in field-grown transgenic Bt cotton using three natural saline levels (1.15 dS m-1 [low soil-salinity], 6.00 dS m-1 [medium soil-salinity] and 11.46 dS m-1 [high soil-salinity]). We found that the Bt protein content in the transgenic Bt cotton leaves and the insecticidal activity of Bt cotton against CBW decreased with the increasing soil salinity in laboratory experiments during the growing season. The Bt protein content of Bt cotton leaves in the laboratory were negatively correlated with the salinity level. The CBW populations were highest on the Bt cotton grown in medium-salinity soil instead of the high-salinity soil in field conditions. A possible mechanism may be that the relatively high-salinity soil changed the plant nutritional quality or other plant defensive traits. The results from this study may help to identify more appropriate practices to control CBW in Bt cotton fields with different soil salinity levels.
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