Paper · 1966 · Journal of Economic Entomology

Parathion Studies on Bean Grown in Sterile Root Culture1

B. M. Zuckerman; C. W. Miller; R. M. Devlin; et al.

11
claims
21
verbatim quotes
4
citations
2
research areas
—
Not open access

Abstract

Parathion was detected in young bean leaflets 2 hours following application to soil of plants grown in sterile root culture. Studies of accumulation of parathion within the plant during 24 hours following soil application indicated that uptake continued during this period, bus slowed considerably after 6 hours. Results of analysis for parathion degradation products from tissue extracts indicated that most, if not all, the parathion molecule remained intact within the plant after more than 22 hours. Higher concentrations of parathion occurred at left margins than in the central portions of the leaf blade. The insecticide appeared to be transported selectively by certain leaflet veins. Younger leaflets accumulated higher concentrations than did older leaflets over the same time period. Parathion was not detected in root exudates 24 hours following foliar application. Several species of sucking insects apparently fed but did not die after being exposed to leaves for 24 hours following soil application. In 1 test, low levels of parathion or parathion-associated metabolites were detected from insects after 24 hours exposure.

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Claims 11

Observationobservedoriginal resultmeasured

Claim · model-written summary

Parathion was detected in young bean leaflets two hours after soil application.

Taxon
beane0
Organ / stage
young bean leafletse0
Treatment
application to soile0
Outcome
Parathion was detectede0
Qualifier
2 hourse0

Not reportedDirection

Verbatim

e0

“Parathion was detected in young bean leaflets 2 hours following application to soil of plants grown in sterile root culture.”

✓ located verbatim in the source · abstract, characters 0–124 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Parathion uptake continued for 24 hours after soil application.

Taxon
Beant0
Treatment
soil applicatione0
Outcome
uptake continuede0
Qualifier
during 24 hourse0

Not reportedDirection

Verbatim

e0

“Studies of accumulation of parathion within the plant during 24 hours following soil application indicated that uptake continued during this period, bus slowed considerably after 6 hours.”

✓ located verbatim in the source · abstract, characters 125–312 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Parathion uptake slowed considerably after six hours.

Taxon
Beant0
Treatment
soil applicatione0
Outcome
uptakee0
Direction
slowed considerablye0
Qualifier
after 6 hourse0

Verbatim

e0

“Studies of accumulation of parathion within the plant during 24 hours following soil application indicated that uptake continued during this period, bus slowed considerably after 6 hours.”

✓ located verbatim in the source · abstract, characters 125–312 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Most or all parathion remained intact in the plant after more than 22 hours.

Taxon
Beant0
Outcome
parathion molecule remained intacte0
Qualifier
after more than 22 hourse0

Not reportedDirection

Verbatim

e0

“Results of analysis for parathion degradation products from tissue extracts indicated that most, if not all, the parathion molecule remained intact within the plant after more than 22 hours.”

✓ located verbatim in the source · abstract, characters 313–503 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Parathion concentrations were higher at left leaf margins than in central leaf blade.

Taxon
Beant0
Organ / stage
leaf bladee0
Outcome
concentrations of parathione0
Direction
Highere0
Comparator
central portions of the leaf bladee0

Verbatim

e0

“Higher concentrations of parathion occurred at left margins than in the central portions of the leaf blade.”

✓ located verbatim in the source · abstract, characters 504–611 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Parathion appeared to be selectively transported through certain leaflet veins.

Taxon
Beant0
Organ / stage
leaflet veinse0
Outcome
transported selectivelye0

Not reportedDirection

Verbatim

e0

“The insecticide appeared to be transported selectively by certain leaflet veins.”

✓ located verbatim in the source · abstract, characters 612–692 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Younger leaflets accumulated more parathion than older leaflets.

Taxon
Beant0
Organ / stage
Younger leafletse0
Outcome
concentrationse0
Direction
highere0
Comparator
older leafletse0

Verbatim

e0

“Younger leaflets accumulated higher concentrations than did older leaflets over the same time period.”

✓ located verbatim in the source · abstract, characters 693–794 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Parathion was undetected in root exudates 24 hours after foliar application.

Taxon
Beant0
Organ / stage
root exudatese0
Treatment
foliar applicatione0
Outcome
Parathion was not detectede0
Qualifier
24 hourse0

Not reportedDirection

Verbatim

e0

“Parathion was not detected in root exudates 24 hours following foliar application.”

✓ located verbatim in the source · abstract, characters 795–877 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sucking insects apparently fed on exposed leaves.

Taxon
Beant0
Interactor
sucking insectse0pest
Outcome
sucking insects apparently fede0
Qualifier
24 hourse0

Not reportedDirection

Verbatim

e0

“Several species of sucking insects apparently fed but did not die after being exposed to leaves for 24 hours following soil application.”

✓ located verbatim in the source · abstract, characters 878–1014 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sucking insects did not die after 24 hours on exposed leaves.

Taxon
Beant0
Interactor
sucking insectse0pest
Outcome
did not diee0
Qualifier
24 hourse0

Not reportedDirection

Verbatim

e0

“Several species of sucking insects apparently fed but did not die after being exposed to leaves for 24 hours following soil application.”

✓ located verbatim in the source · abstract, characters 878–1014 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Low levels of parathion or its metabolites were detected in insects after 24 hours.

Taxon
Beant0
Interactor
insectsInsectae0pest
Outcome
low levels of parathion or parathion-associated metabolites were detected from insectse0
Qualifier
after 24 hours exposuree0

Not reportedDirection

Verbatim

e0

“In 1 test, low levels of parathion or parathion-associated metabolites were detected from insects after 24 hours exposure.”

✓ located verbatim in the source · abstract, characters 1015–1137 · show in text ↑
t0

“Bean”

✓ located verbatim in the source · title, characters 21–25 · show in text ↑