There are currently 402 studies in the GENERA database.

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General Information

Document type
  • Peer-reviewed journal article
GE organism
  • maize
GE trait
  • insect resistance
Country
  • USA

Results

Efficacy
  • positive effect
Safety for consumption
  • positive effect

Aflatoxin accumulation in conventional and transgenic corn hybrids infested with southwestern corn borer (Lepidoptera: Crambidae) Open Access

Williams, WP; Windham, GL; Buckley, PM; Daves, CA
Journal of Agricultural and Urban Entomology. 2002 October. 19(4):227-236

Link to full text (open access, freely available)

ISSN: 1523-5475

Abstract

Aflatoxin is a potent carcinogen produced by the fungus Aspergillus flavus Link:fr. Aflatoxin contamination of corn greatly diminishes its value and is a major impediment to profitable corn production in the South. Aflatoxin contamination is frequently linked with drought, high temperatures, and insect damage. The effects of southwestern corn borer, Diatraea grandiosella Dyar, damage on aflatoxin contamination were investigated. Aflatoxin contamination levels in conventional nonBt corn hybrids and transgenic Bt hybrids after inoculation with A. flavus and infestation with southwestern corn borer were compared. Aflatoxin contamination was highest when hybrids were inoculated with A. flavus using a technique that wounded the kernels. Aflatoxin contamination was significantly greater in nonBt than in Bt hybrids when ears were inoculated by spraying with an A. flavus conidial suspension and concurrently infesting with southwestern corn borer. Infesting conventional non Bt hybrids with southwestern corn borer resulted in significant leaf feeding, stalk tunneling, stunting, yield loss, and aflatoxin contamination. Losses were significantly reduced in transgenic Bt hybrids.

Keywords

Aspergillus flavus; aflatoxin; corn; Zea mays L.; southwestern corn borer; Diatraea grandiosella; Crambidae; Lepidoptera; Bacillus thuringiensis

Funding

Funding source
  • USDA
Funding country
  • United States
Funding type
  • government

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Cite this study

MLA

Williams, WP, GL Windham, PM Buckley, CA Daves. "Aflatoxin accumulation in conventional and transgenic corn hybrids infested with southwestern corn borer (Lepidoptera: Crambidae)." Journal of Agricultural and Urban Entomology 19.4 (2002): 227-236. Web. 13 Dec. 2018.

APA

Williams, WP., Windham, GL., Buckley, PM., & Daves, CA. (2002). Aflatoxin accumulation in conventional and transgenic corn hybrids infested with southwestern corn borer (Lepidoptera: Crambidae). Journal of Agricultural and Urban Entomology, 19(4), 227-236.

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