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Bacillus thuringiensis Cry1Ab Domain III β-22 Mutants with Enhanced Toxicity to Spodoptera frugiperda (J. E. Smith).

Applied and environmental microbiology - 28 Oct 2020

Gómez Isabel, Ocelotl Josue, Sánchez Jorge, Aguilar-Medel Sotero, Peña-Chora Guadalupe, Lina-Garcia Laura, Bravo Alejandra, Soberón Mario

Abstract excerpt

The fall armyworm, Spodoptera frugiperda, is an invasive maize pest that has spread from the Americas into Africa and Asia and causes severe crop damage worldwide. Most populations of S. frugiperda show low susceptibility to Bacillus thuringiensis (Bt) Cry1Ab or Cry1Ac toxins, which have been proved to be effective against several other lepidopteran pests. In addition, S. frugiperda has evolved resistance to...

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PMID: 32887720
DOI: 10.1128/AEM.01580-20
PMCID: PMC7642078

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Source receipt: pubmed, retrieved 7 Sept 2026.

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