Stacked Bt maize and arthropod predators: exposure to insecticidal Cry proteins and potential hazards
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895618" target="_blank" >RIV/60076658:12310/17:43895618 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/17:00476332
Result on the web
<a href="http://rspb.royalsocietypublishing.org/content/284/1859/20170440" target="_blank" >http://rspb.royalsocietypublishing.org/content/284/1859/20170440</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1098/rspb.2017.0440" target="_blank" >10.1098/rspb.2017.0440</a>
Alternative languages
Result language
angličtina
Original language name
Stacked Bt maize and arthropod predators: exposure to insecticidal Cry proteins and potential hazards
Original language description
Genetically engineered (GE) cropswith stacked insecticidal traits expose arthropods tomultiple Cry proteins fromBacillus thuringiensis (Bt). One concern is that the different Cry proteins may interact and lead to unexpected adverse effects on non-target species. Bi-and tri-trophic experiments with SmartStax maize, herbivorous spider mites (Tetranychus urticae), aphids (Rhopalosiphum padi), predatory spiders (Phylloneta impressa), ladybeetles (Harmonia axyridis) and lacewings (Chrysoperla carnea) were conducted. Cry1A. 105, Cry1F, Cry3Bb1 and Cry34Ab1 moved in a similar pattern through the arthropod food chain. By contrast, Cry2Ab2 had highest concentrations in maize leaves, but lowest in pollen, and lowest acquisition rates by herbivores and predators. While spider mites contained Cry protein concentrations exceeding the values in leaves (except Cry2Ab2), aphids contained only traces of some Cry protein. Predators contained lower concentrations than their food. Among the different predators, ladybeetle larvae showed higher concentrations than lacewing larvae and juvenile spiders. Acute effects of SmartStax maize on predator survival, development andweightwere not observed. The study thus provides evidence that the different Cry proteins do not interact in a way that poses a risk to the investigated non-target species under controlled laboratory conditions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10616 - Entomology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of the Royal Society of London Series B - Biological Sciences
ISSN
0962-8452
e-ISSN
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Volume of the periodical
284
Issue of the periodical within the volume
1859
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
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UT code for WoS article
000406288700006
EID of the result in the Scopus database
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