Claim · model-written summary
Mean Cry1Ab concentrations in H. axyridis were very low, 0.01-0.2 µg/g.
- Interactor
- H. axyridis
.jpg?width=60)
Harmonia axyridise4biocontrol_agent - Gene
- Cry1Abe4
- Outcome
- mean concentrationse4
- Value
- 0.01-0.2 µg/ge4
- Qualifier
- very lowe4
Zea maysNot reportedMaterialCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Non-Bt Maize”
e4“ELISA measurements confirmed the presence of Cry1Ab in leaf tissue (23-33 µg/g dry weight) and S. frugiperda (2.1-2.2 µg/g), while mean concentrations in H. axyridis were very low (0.01-0.2 µg/g)”
Title
Carla C. Dutra; Robert L. Koch; Eric C. Burkness; et al. PLoS ONE 2012. doi:10.1371/journal.pone.0044867
Other claims from this paper (8)
- Intervention effect Prey larvae fed non-Bt maize leaves were significantly larger than larvae fed Bt maize leaves.
- Intervention effect Predators did not differ in the number of Bt-fed and non-Bt-fed prey consumed.
- Observation Both predator stages had eaten nearly all the prey by the end of the experiment.
- Observation Cry1Ab was detected in maize leaf tissue at 23-33 µg/g dry weight.
- Observation Cry1Ab was detected in Spodoptera frugiperda prey at 2.1-2.2 µg/g.
- Observation The predatory status of H. axyridis on S. frugiperda was confirmed.
- Intervention effect Both H. axyridis adults and larvae showed no preference between Bt-fed and non-Bt-fed prey.
- Recommendation The lack of preference between Bt-fed and non-Bt-fed prey should favour insect resistance management strategies that mix GE and non-GE maize seed.