Paper · 1989 · Weed Science

Reduction of Imazaquin Injury to Corn (Zea mays) and Sorghum (Sorghum bicolor) by Antidotes

Michael Barrett

11
claims
20
verbatim quotes
20
citations
2
research areas
—
Not open access

Abstract

Antidotes were evaluated for their ability to prevent corn and sorghum injury caused by imazaquin. Plant injury was reduced in both preemergence and early postemergence imazaquin applications. Naphthalic anhydride (NA) seed treatment was the most consistent compound in reducing the imazaquin injury. Seed treatment with CGA 92194 or flurazole also gave injury protection to corn and sorghum, while soil treatment with dichlormid provided the least protection from imazaquin injury. Treatment with the antidotes did not affect the acetolactate synthase (ALS) (EC4.1.3.18) activity in corn or sorghum tissues. Imazaquin treatments decreased extractable ALS activity but this decrease was eliminated, partially or totally, by the most effective antidotes. Antidote treatments had little effect on absorption and distribution of 14 C in plants growing in soil treated with 14 C-imazaquin. Antidote treatments increased the metabolism of 14 C-imazaquin to both soluble and unextractable 14 C after 24 h of exposure. The increased rate of imazaquin conversion to less toxic metabolites when antidotes were used resulted in a reduction in imazaquin injury to corn and sorghum.

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Claims 11

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Imazaquin injury was reduced in both preemergence and early postemergence applications.

Outcome
Plant injurye0
Direction
reducede0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Plant injury was reduced in both preemergence and early postemergence imazaquin applications”

✓ located verbatim in the source · abstract, characters 99–191 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Naphthalic anhydride seed treatment most consistently reduced imazaquin injury.

Treatment
Naphthalic anhydride (NA) seed treatmente0
Outcome
imazaquin injurye0
Direction
reducinge0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Naphthalic anhydride (NA) seed treatment was the most consistent compound in reducing the imazaquin injury”

✓ located verbatim in the source · abstract, characters 193–299 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CGA 92194 seed treatment protected corn from injury.

Treatment
Seed treatment with CGA 92194e0
Outcome
injury protectione0

Not reportedComparatorDirection

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed treatment with CGA 92194 or flurazole also gave injury protection to corn and sorghum”

✓ located verbatim in the source · abstract, characters 301–391 · show in text ↑
t0

“Corn (Zea mays)”

✓ located verbatim in the source · title, characters 33–48 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Flurazole seed treatment protected sorghum from injury.

Taxon
sorghumSorghume0
Treatment
flurazolee0
Outcome
injury protectione0

Not reportedComparatorDirection

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed treatment with CGA 92194 or flurazole also gave injury protection to corn and sorghum”

✓ located verbatim in the source · abstract, characters 301–391 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dichlormid soil treatment offered the least imazaquin injury protection.

Treatment
soil treatment with dichlormide0
Outcome
protection from imazaquin injurye0
Direction
leaste0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“soil treatment with dichlormid provided the least protection from imazaquin injury”

✓ located verbatim in the source · abstract, characters 399–481 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Antidotes alone did not affect ALS activity in corn.

Treatment
the antidotese0
Gene
acetolactate synthase (ALS)e0
Outcome
acetolactate synthase (ALS) (EC4.1.3.18) activitye0
Direction
did not affecte0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment with the antidotes did not affect the acetolactate synthase (ALS) (EC4.1.3.18) activity in corn or sorghum tissues”

✓ located verbatim in the source · abstract, characters 483–607 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Imazaquin decreased extractable ALS activity.

Treatment
Imazaquin treatmentse0
Gene
ALSe0
Outcome
extractable ALS activitye0
Direction
decreasede0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Imazaquin treatments decreased extractable ALS activity”

✓ located verbatim in the source · abstract, characters 609–664 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Effective antidotes partly or fully eliminated the imazaquin related ALS decrease.

Treatment
most effective antidotese0
Gene
ALSe1
Outcome
extractable ALS activitye1
Direction
eliminatede0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“this decrease was eliminated, partially or totally, by the most effective antidotes”

✓ located verbatim in the source · abstract, characters 669–752 · show in text ↑
e1

“Imazaquin treatments decreased extractable ALS activity”

✓ located verbatim in the source · abstract, characters 609–664 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Antidotes had little effect on imazaquin carbon absorption and distribution.

Treatment
Antidote treatmentse0
Outcome
absorption and distribution of 14 Ce0
Direction
little effecte0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Antidote treatments had little effect on absorption and distribution of 14 C in plants growing in soil treated with 14 C-imazaquin”

✓ located verbatim in the source · abstract, characters 754–884 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Antidotes increased imazaquin metabolism to soluble and unextractable carbon after 24 hours.

Treatment
Antidote treatmentse0
Outcome
metabolism of 14 C-imazaquin to both soluble and unextractable 14 Ce0
Direction
increasede0
Qualifier
after 24 h of exposuree0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Antidote treatments increased the metabolism of 14 C-imazaquin to both soluble and unextractable 14 C after 24 h of exposure”

✓ located verbatim in the source · abstract, characters 886–1010 · show in text ↑
t0

“Corn (Zea mays) and Sorghum (Sorghum bicolor)”

✓ located verbatim in the source · title, characters 33–78 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors attribute reduced imazaquin injury to faster conversion into less toxic metabolites with antidotes.

Outcome
reduction in imazaquin injurye0
Qualifier
increased rate of imazaquin conversion to less toxic metabolitese0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The increased rate of imazaquin conversion to less toxic metabolites when antidotes were used resulted in a reduction in imazaquin injury to corn and sorghum”

✓ located verbatim in the source · abstract, characters 1012–1169 · show in text ↑

Dichlormid · crop injury · Zea mays (maize)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

antidote · molecular: metabolites · Zea mays (maize)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

Naphthalic anhydride · crop injury · Zea mays (maize)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

seed treatment · crop injury · Zea mays (maize)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. positive
  3. no effect

5 papers more in this group

See all 9 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.