Stacked Bt maize and arthropod predators: exposure to insecticidal Cry proteins and potential hazards

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/60077344:_____/17:00476332

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Stacked Bt maize and arthropod predators: exposure to insecticidal Cry proteins and potential hazards

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Stacked Bt maize and arthropod predators: exposure to insecticidal Cry proteins and potential hazards

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Proceedings of the Royal Society of London Series B - Biological Sciences

ISSN

0962-8452

e-ISSN

—

Svazek periodika

284

Číslo periodika v rámci svazku

1859

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000406288700006

EID výsledku v databázi Scopus

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