Claim · model-written summary
Feeding on high-flavonoid maize increased corn earworm larval mortality.
- Taxon
- Helicoverpa zea
Helicoverpa zeae1 - Treatment
- feeding on high-flavonoid maize linese0
- Outcome
- mortalitye0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Larvae feeding on high-flavonoid maize lines had increased mortality and reduced body weight.”
e1“Corn earworm (CEW) Helicoverpa zea (Boddie) is one of the economically important insect pests of maize”
Title
Plant defense against insect herbivory: Flavonoid-mediated growth inhibition of Helicoverpa zea
Debamalya Chatterjee; Charles Colvin; Tyler Lesko; et al. Plant Stress 2025. doi:10.1016/j.stress.2025.100738
Other claims from this paper (11)
- Intervention effect Feeding on high-flavonoid maize reduced corn earworm larval body weight.
- Observation Larvae consuming high-flavonoid maize showed midgut peritrophic matrix leakage.
- Mechanism Peritrophic matrix damage caused food bolus leakage into the midgut epithelium.
- Mechanism The larval leakage syndrome suggested involvement of larval gut microbiome changes.
- Intervention effect Flavonoid-rich husk consumption changed expression of larval chitin formation and gut health genes.
- Intervention effect Corn earworm herbivory caused high localized flavonol accumulation around damaged maize husks.
- Observation Silks and husks of high-flavonoid maize lines had elevated 3-deoxyanthocyanidin and flavan-4-ol levels.
- Mechanism 3-deoxyanthocyanidins and flavan-4-ols contributed to higher larval mortality.
- Intervention effect Artificial diet supplemented with sorghum 3-DAs-rich extract increased larval mortality.
- Intervention effect Sorghum flavonoid supplementation reduced larval body weight.
- Recommendation The authors suggest flavonoid defense as an option for integrated corn earworm pest management.
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