Paper · 1973 · Canadian Journal of Botany

The effect of cycloheximide on amide formation in maize roots

Ann Oaks; F. J. Johnson

12
claims
22
verbatim quotes
13
citations
1
research areas
—
Not open access

Abstract

Cycloheximide inhibits the incorporation of acetate-2- 14 C into protein and into asparagine in corn root tips. It also causes an accumulation of glutamine and, over a concentration range of 0.4 to 5.0 μg/ml, a transient accumulation of the neutral and basic amino acids. In mature sections, cycloheximide inhibits protein synthesis but causes an increase in the incorporation of radioactivity into both glutamine and asparagine. Azaserine, a glutamine analogue, also inhibits the formation of asparagine in root-tip sections but has only a minor effect on protein synthesis. In mature root sections, there is an accumulation of glutamine but no effect on asparagine formation when azaserine is used. Glutamine additions to root tips or mature root sections affect neither asparagine formation nor protein synthesis. We conclude that cycloheximide is behaving as a glutamine analogue in its effect on asparagine biosynthesis, and that its effect as a glutamine analogue is lost as cells mature.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 12

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cycloheximide inhibited labelled acetate incorporation into protein in corn root tips.

Organ / stage
root tipse0
Treatment
Cycloheximidee0
Outcome
incorporation of acetate-2- 14 C into proteine0
Direction
inhibitse0

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

“Cycloheximide inhibits the incorporation of acetate-2- 14 C into protein and into asparagine in corn root tips”

✓ located verbatim in the source · abstract, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cycloheximide inhibited labelled acetate incorporation into asparagine in corn root tips.

Organ / stage
root tipse0
Treatment
Cycloheximidee0
Outcome
asparaginee0
Direction
inhibitse0

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

“Cycloheximide inhibits the incorporation of acetate-2- 14 C into protein and into asparagine in corn root tips”

✓ located verbatim in the source · abstract, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cycloheximide caused glutamine accumulation in corn root tips.

Taxon
maizeZea mayst0
Organ / stage
rootst0
Treatment
cycloheximidet0
Outcome
accumulation of glutaminee0
Direction
accumulatione0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“It also causes an accumulation of glutamine and, over a concentration range of 0.4 to 5.0 μg/ml, a transient accumulation of the neutral and basic amino acids”

✓ located verbatim in the source · abstract, characters 112–270 · show in text ↑
t0

“cycloheximide on amide formation in maize roots”

✓ located verbatim in the source · title, characters 14–61 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cycloheximide transiently accumulated neutral and basic amino acids in corn root tips at 0.4 to 5.0 μg/ml.

Taxon
maizeZea mayst0
Organ / stage
rootst0
Treatment
cycloheximidet0
Outcome
transient accumulation of the neutral and basic amino acidse0
Direction
accumulatione0
Value
0.4 to 5.0 μg/mle0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“It also causes an accumulation of glutamine and, over a concentration range of 0.4 to 5.0 μg/ml, a transient accumulation of the neutral and basic amino acids”

✓ located verbatim in the source · abstract, characters 112–270 · show in text ↑
t0

“cycloheximide on amide formation in maize roots”

✓ located verbatim in the source · title, characters 14–61 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cycloheximide inhibited protein synthesis in mature root sections.

Taxon
maizeZea mayst0
Organ / stage
mature sectionse0
Treatment
cycloheximidee0
Outcome
protein synthesise0
Direction
inhibitse0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In mature sections, cycloheximide inhibits protein synthesis but causes an increase in the incorporation of radioactivity into both glutamine and asparagine”

✓ located verbatim in the source · abstract, characters 272–428 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cycloheximide increased radioactive incorporation into glutamine and asparagine in mature root sections.

Taxon
maizeZea mayst0
Organ / stage
mature sectionse0
Treatment
cycloheximidee0
Outcome
incorporation of radioactivity into both glutamine and asparaginee0
Direction
increasee0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In mature sections, cycloheximide inhibits protein synthesis but causes an increase in the incorporation of radioactivity into both glutamine and asparagine”

✓ located verbatim in the source · abstract, characters 272–428 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Azaserine inhibited asparagine formation in root-tip sections.

Taxon
maizeZea mayst0
Organ / stage
root-tip sectionse0
Treatment
Azaserinee0
Outcome
formation of asparaginee0
Direction
inhibitse0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Azaserine, a glutamine analogue, also inhibits the formation of asparagine in root-tip sections but has only a minor effect on protein synthesis”

✓ located verbatim in the source · abstract, characters 430–574 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Azaserine had only a minor effect on protein synthesis in root-tip sections.

Taxon
maizeZea mayst0
Organ / stage
root-tip sectionse0
Treatment
Azaserinee0
Outcome
protein synthesise0
Qualifier
only a minor effecte0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Azaserine, a glutamine analogue, also inhibits the formation of asparagine in root-tip sections but has only a minor effect on protein synthesis”

✓ located verbatim in the source · abstract, characters 430–574 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Azaserine caused glutamine accumulation in mature root sections.

Taxon
maizeZea mayst0
Organ / stage
mature root sectionse0
Treatment
azaserinee0
Outcome
accumulation of glutaminee0
Direction
accumulatione0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In mature root sections, there is an accumulation of glutamine but no effect on asparagine formation when azaserine is used”

✓ located verbatim in the source · abstract, characters 576–699 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Azaserine did not affect asparagine formation in mature root sections.

Taxon
maizeZea mayst0
Organ / stage
mature root sectionse0
Treatment
azaserinee0
Outcome
asparagine formatione0
Direction
no effecte0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In mature root sections, there is an accumulation of glutamine but no effect on asparagine formation when azaserine is used”

✓ located verbatim in the source · abstract, characters 576–699 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Glutamine additions did not affect asparagine formation or protein synthesis in root tips or mature sections.

Taxon
maizeZea mayst0
Organ / stage
root tips or mature root sectionse0
Treatment
Glutamine additionse0
Outcome
asparagine formation nor protein synthesise0
Direction
affect neithere0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Glutamine additions to root tips or mature root sections affect neither asparagine formation nor protein synthesis”

✓ located verbatim in the source · abstract, characters 701–815 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors infer that cycloheximide acts as a glutamine analogue for asparagine biosynthesis, with this effect lost as cells mature.

Taxon
maizeZea mayst0
Treatment
cycloheximidee0
Outcome
asparagine biosynthesise0
Qualifier
as a glutamine analoguee0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“We conclude that cycloheximide is behaving as a glutamine analogue in its effect on asparagine biosynthesis, and that its effect as a glutamine analogue is lost as cells mature”

✓ located verbatim in the source · abstract, characters 817–993 · show in text ↑
t0

“maize roots”

✓ located verbatim in the source · title, characters 50–61 · show in text ↑

glutamine · quality: protein · Zea mays (maize)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

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

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

cycloheximide · quality: protein · Zea mays (maize)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 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.