Claim · model-written summary
Within two months of the first biocontrol application in a Mississippi Delta corn field, the percentage of soil-inhabiting aflatoxigenic A. flavus strains in some plots was reduced from 48% to 9% of the population.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- first biocontrol applicatione2
- Interactor
- aflatoxigenic A. flavus strainse1pathogen
- Second interactor
- biocontrol strainse3biocontrol_agent
- Outcome
- percentage of soil-inhabiting aflatoxigenic A. flavus strainse1
- Direction
- reducede1
- Value
- from 48% to 9%e1
- Setting
- Mississippi Deltae0
Not reportedMaterialGeneCompoundOrgan / stageComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3.2 ha commercial corn field in the Mississippi Delta”
e1“the percentage of soil-inhabiting aflatoxigenic A. flavus strains in some plots was reduced from 48% to 9% of the population”
e2“Within two months of the first biocontrol application”
e3“Three biocontrol strains (NRRL 21882, 18543 and 30797)”
Title
Mark A. Weaver; Hamed K. Abbas Frontiers in Microbiology 2019. doi:10.3389/fmicb.2019.01788
Other claims from this paper (5)
- Observation The frequency of aflatoxigenic A. flavus strains was also significantly reduced in the rest of the field.
- Observation After four years, neighboring plots that never received a biocontrol treatment, at least 20 meters from treatment plots, had less than 20% aflatoxigenic isolates, described as a significant halo effect.
- Observation A. flavus populations that colonized the grain were less than 15% toxigenic in the fourth year for all treatments.
- Observation Over all treatments and years, less than 2 ppb of aflatoxin was detected.
- Observation The authors conclude that most of the effectiveness of non-aflatoxigenic A. flavus biocontrol occurs with the first application.