Paper · 1970 · Botanical Gazette

The Effect of 3-Amino-S-Triazole on Flax Root Apices

C. J. Arntzen; A. J. Linck; W. P. Cunningham

8
claims
15
verbatim quotes
5
citations
2
research areas
—
Not open access

Abstract

Carbon-14 has been shown to be translocated to the root tips of flax seedlings when 14C-amitrole is applied to an expanded cotyledon. The herbicide causes inhibition of growth and modification in cellular structure in the root. These changes include an increase in vacuolation in cortical and root cap cells, precocious differentiation of vascular elements, and initiation of numerous root primordia. Severe ultrastructural damage was observed in some elongating cells, and changes in plastid structure. All modifications of root structure seem to be compatible with the theory that amitrole affects some step in nucleic acid metabolism.

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Claims 8

Observationobservedoriginal resultmeasured

Claim · model-written summary

Carbon-14 moved to flax seedling root tips after 14C-amitrole application to a cotyledon.

Organ / stage
root tipse0
Treatment
14C-amitrolee0
Outcome
Carbon-14e0
Direction
translocatede0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Carbon-14 has been shown to be translocated to the root tips of flax seedlings when 14C-amitrole is applied to an expanded cotyledon.”

✓ located verbatim in the source · abstract, characters 0–133 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Amitrole inhibited flax root growth.

Treatment
herbicidee0
Outcome
growthe0
Direction
inhibitione0

Not reportedComparator

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The herbicide causes inhibition of growth and modification in cellular structure in the root.”

✓ located verbatim in the source · abstract, characters 134–227 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Amitrole increased vacuolation in flax cortical and root cap cells.

Organ / stage
cortical and root cap cellse0
Outcome
vacuolatione0
Direction
increasee0

Not reportedTreatmentComparator

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“These changes include an increase in vacuolation in cortical and root cap cells, precocious differentiation of vascular elements, and initiation of numerous root primordia.”

✓ located verbatim in the source · abstract, characters 228–400 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Amitrole caused precocious differentiation of vascular elements.

Outcome
precocious differentiation of vascular elementse0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“These changes include an increase in vacuolation in cortical and root cap cells, precocious differentiation of vascular elements, and initiation of numerous root primordia.”

✓ located verbatim in the source · abstract, characters 228–400 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Amitrole initiated numerous root primordia.

Outcome
initiation of numerous root primordiae0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“These changes include an increase in vacuolation in cortical and root cap cells, precocious differentiation of vascular elements, and initiation of numerous root primordia.”

✓ located verbatim in the source · abstract, characters 228–400 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Severe ultrastructural damage appeared in some elongating root cells.

Organ / stage
elongating cellse0
Outcome
Severe ultrastructural damagee0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Severe ultrastructural damage was observed in some elongating cells, and changes in plastid structure.”

✓ located verbatim in the source · abstract, characters 401–503 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Plastid structure changed after amitrole exposure.

Outcome
changes in plastid structuree0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Severe ultrastructural damage was observed in some elongating cells, and changes in plastid structure.”

✓ located verbatim in the source · abstract, characters 401–503 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors interpret root structural changes as compatible with amitrole affecting nucleic acid metabolism.

Outcome
modifications of root structuree0
Qualifier
amitrole affects some step in nucleic acid metabolisme0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“All modifications of root structure seem to be compatible with the theory that amitrole affects some step in nucleic acid metabolism.”

✓ located verbatim in the source · abstract, characters 504–637 · show in text ↑
t0

“Flax”

✓ located verbatim in the source · title, characters 36–40 · show in text ↑

herbicide · growth · Linum usitatissimum (flax)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

2 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 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.