Development of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) on pollen from Bt-transgenic and conventional maize
Open accessAbstract
Maize (Zea mays) pollen is highly nutritious and can be used by predatory arthropods to supplement or replace a carnivorous diet. We demonstrate that maize pollen can be utilized by larvae of the green lacewing, Chrysoperla carnea (Neuroptera: Chrysopidae) under laboratory conditions. Complete development on maize pollen was not possible, but 25% of neonates reached the third instar. When only one instar was fed with pollen and the other two instars with eggs of Ephestia kuehniella (Lepidoptera: Pyralidae), 58-87% of the larvae reached the pupal stage. The experiments included pollen produced by nine cultivars: three genetically modified (GM) cultivars expressing the Bacillus thuringiensis proteins Cry1Ab or Cry3Bb1, their corresponding non-transformed near-isolines, and three conventional cultivars. Maize cultivars were grown in two batches in a glasshouse. Their pollen differed by up to 59% in total protein content, 25% in C:N ratio, and 14% in grain diameter, but the differences were inconsistent and depended on the batch. Lacewing performance was not affected by maize cultivar. For environmental risk assessment of GM plants, in planta studies must consider the variability among conventional cultivars, individual plants, batches, and environmental conditions when evaluating the ecological significance of differences observed between GM and near-isolines.
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Studies with Bt maize pollen from events MON810 and Bt11 lacked exposure given very low concentrations of Cry proteins in pollen of this event.
“Studies conducted with Bt maize pollen from events MON810 and Bt11 (Meissle et al., 2014;Obrist et al., 2006c) also lacked exposure given the very low concentrations of Cry proteins in the pollen of this event (Dutton et al., 2003;Nguyen and Jehle, 2007).”
From Genetically engineered crops help support conservation biological control (2019) · cites this paper as Meissle et al., 2014
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- Authors
- Meissle, M., Zünd, J., Waldburger, M., & Romeis, J.
- Affiliations
- Agroscope (CH)
- Corresponding author
- Meissle, Michael
- Venue
- Scientific Reports
- Published
- 2014-07-31
- Volume
- 4
- Issue
- 1
- Pages
- 5900-5900
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC5376203
- OpenAlex
- W2003776209
- Cited by
- 31
- References
- 54
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 1 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 6 · 2017: 6 · 2016: 1 · 2015: 3 · 2014: 1
- FWCI
- 4.29
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Scientific Reports (publishedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Funders
- Agroscope
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
- Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Insect Resistance and Genetics
- Keywords
- Chrysoperla carnea, green lacewings, maize pollen, Bt maize, genetically modified crops, Cry1Ab, Cry3Bb1, Ephestia kuehniella eggs, larval development, alternative prey, non-target arthropods, environmental risk assessment, pollen protein content, C/N ratio
- MeSH terms
- Animals, Zea mays, Endotoxins, Feeding Behavior, Insecta, Nutritional Requirements, Plant Proteins, Pollen, Plants, Genetically Modified
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