Paper · 1989 · Peanut Science

Reaction of Peanut Genotypes under Drought Stress to Aspergillus flavus and A. parasiticus1

H. A. Azaizeh; R. E. Pettit; O. D. Smith; et al.

8
claims
11
verbatim quotes
13
citations
2
research areas
✓
Open access

Abstract

Abstract Seven peanut genotypes (Arachis hypogaea L.) were tested in greenhouse and microplot experiments during two consecutive years to determine peanut peg colonization by Aspergillus flavus and to determine the effect of two drought stress treatments on the susceptibility of peanut shells and kernels to Aspergillus colonization and aflatoxin contamination. Moisture tensions within the soil and temperatures of the soil and air were monitored during these experiments. Colonization of peanut pegs was inconsistent among genotypes and between years. In general, low soil moisture tension enhanced colonization of peanut shells and kernels. Shells of most genotypes were highly colonized after harvest from each moisture regime. Kernels of all genotypes were more susceptible to A. flavus and A. parasiticus colonization under both long and short drought stress conditions compared to non-stressed conditions. However, no significant differences were obtained in the degree of Aspergillus infestation of kernels from PI 337409, Starr, and J-11 in the greenhouse experiments. Under microplot conditions, acomparison of several genotypes revealed that kernels from plants of genotypes TX811956 and TX798736 (short stress treatments) contained significantly lower Aspergillus infestation and kernels from the genotypes PI 337409 and TX811956 and TX798736 contained significantly less aflatoxin.

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Claims 8

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

Peanut peg colonization varied inconsistently among genotypes and years.

Organ / stage
pegse0
Outcome
Colonization of peanut pegse0
Qualifier
among genotypes and between yearse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Colonization of peanut pegs was inconsistent among genotypes and between years.”

✓ located verbatim in the source · abstract, characters 475–554 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low soil moisture tension enhanced Aspergillus colonization of peanut shells and kernels.

Treatment
low soil moisture tensione0
Interactor
AspergillusAspergilluse1pathogen
Outcome
colonization of peanut shells and kernelse0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Aspergillus
Aspergillus · Interactor · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“low soil moisture tension enhanced colonization of peanut shells and kernels”

✓ located verbatim in the source · abstract, characters 567–643 · show in text ↑
e1

“Aspergillus colonization”

✓ located verbatim in the source · abstract, characters 309–333 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Most peanut genotypes had highly colonized shells after harvest in each moisture regime.

Organ / stage
Shellse0
Outcome
Shells of most genotypes were highly colonizede0
Qualifier
after harvest from each moisture regimee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Shells of most genotypes were highly colonized after harvest from each moisture regime.”

✓ located verbatim in the source · abstract, characters 645–732 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kernels of all genotypes were more susceptible to Aspergillus colonization under long drought than unstressed conditions.

Treatment
longe0
Interactor
A. flavus and A. parasiticusAspergillus flavusAspergillus parasiticuse0pathogen
Outcome
Kernels of all genotypes were more susceptible to A. flavus and A. parasiticus colonizatione0
Direction
more susceptiblee0
Comparator
non-stressed conditionse0

Not reportedTaxon

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Aspergillus flavus
Aspergillus flavus · InteractorUS gov · Public domain · Wikimedia Commons ↗
Aspergillus parasiticus
Aspergillus parasiticus · InteractorMedmyco · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Kernels of all genotypes were more susceptible to A. flavus and A. parasiticus colonization under both long and short drought stress conditions compared to non-stressed conditions.”

✓ located verbatim in the source · abstract, characters 733–913 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kernels of all genotypes were more susceptible to Aspergillus colonization under short drought than unstressed conditions.

Treatment
short drought stress conditionse0
Interactor
A. flavus and A. parasiticusAspergillus flavusAspergillus parasiticuse0pathogen
Outcome
Kernels of all genotypes were more susceptible to A. flavus and A. parasiticus colonizatione0
Direction
more susceptiblee0
Comparator
non-stressed conditionse0

Not reportedTaxon

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Aspergillus flavus
Aspergillus flavus · InteractorUS gov · Public domain · Wikimedia Commons ↗
Aspergillus parasiticus
Aspergillus parasiticus · InteractorMedmyco · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Kernels of all genotypes were more susceptible to A. flavus and A. parasiticus colonization under both long and short drought stress conditions compared to non-stressed conditions.”

✓ located verbatim in the source · abstract, characters 733–913 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Greenhouse kernel infestation differences were not significant for PI 337409, Starr and J-11.

Material
PI 337409, Starr, and J-11e0
Interactor
AspergillusAspergilluse0pathogen
Outcome
degree of Aspergillus infestation of kernelse0
Direction
no significant differencese0
Setting
greenhouse experimentse0

Not reportedTreatmentComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Aspergillus
Aspergillus · Interactor · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“no significant differences were obtained in the degree of Aspergillus infestation of kernels from PI 337409, Starr, and J-11 in the greenhouse experiments.”

✓ located verbatim in the source · abstract, characters 923–1078 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Under short stress, TX811956 and TX798736 kernels had lower Aspergillus infestation in microplots.

Material
TX811956 and TX798736e0
Treatment
short stress treatmentse0
Interactor
AspergillusAspergilluse0pathogen
Outcome
Aspergillus infestatione0
Direction
lowere0
Setting
microplot conditionse0

Not reportedTaxon

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Aspergillus
Aspergillus · Interactor · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Under microplot conditions, acomparison of several genotypes revealed that kernels from plants of genotypes TX811956 and TX798736 (short stress treatments) contained significantly lower Aspergillus infestation”

✓ located verbatim in the source · abstract, characters 1079–1288 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

PI 337409, TX811956 and TX798736 kernels contained less aflatoxin in microplots.

Material
PI 337409 and TX811956 and TX798736e0
Outcome
aflatoxine0
Direction
lesse0
Setting
microplot conditionse0

Not reportedTaxon

Verbatim

e0

“Under microplot conditions, acomparison of several genotypes revealed that kernels from plants of genotypes TX811956 and TX798736 (short stress treatments) contained significantly lower Aspergillus infestation and kernels from the genotypes PI 337409 and TX811956 and TX798736 contained significantly less aflatoxin.”

✓ located verbatim in the source · abstract, characters 1079–1395 · show in text ↑

drought · Aspergillus flavus · Arachis hypogaea (peanut)Positive and negative results

8 papers: 2 positive, 6 negative or no effect

5 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. negative
  3. positive

4 papers more in this group

See all 8 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.