Paper · 1952 · Botanical Gazette

Free Amino Acids in Sugar-Beet Leaves Altered by Zinc Dimethyldithiocarbamate

Roger Blouch; Merle G. Payne; Jess L. Fults

6
claims
11
verbatim quotes
6
citations
1
research areas
—
Not open access

Abstract

1. The effect of foliage-spray applications of the fungicide Zerlate (zinc dimethyldithiocarbamate) on the free amino acids in sugar-beet leaves grown in a greenhouse was measured in a series of analyses involving total ninhydrin-reactants and a combination of one- and two-dimensional paper chromatography. 2. Glutamic acid content significantly decreased with treatment, and glutamine significantly increased. Valine and leucine also increased significantly. Tyrosine, undetected in controls, appeared faintly in treated samples. 3. Apparently such treatment with Zerlate induces a metabolic shift wherein glutamic acid decreases in the leaves and accumulates in the roots of sugar beets.

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Claims 6

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Zerlate treatment significantly reduced leaf glutamic acid.

Treatment
treatmente0
Outcome
Glutamic acid contente0
Direction
decreasede0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Glutamic acid content significantly decreased with treatment”

✓ located verbatim in the source · abstract, characters 311–371 · show in text ↑
t0

“Sugar-Beet Leaves”

✓ located verbatim in the source · title, characters 20–37 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Zerlate treatment significantly increased glutamine.

Treatment
Zinc Dimethyldithiocarbamatet0
Outcome
glutaminee0
Direction
increasede0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“glutamine significantly increased”

✓ located verbatim in the source · abstract, characters 377–410 · show in text ↑
t0

“Free Amino Acids in Sugar-Beet Leaves Altered by Zinc Dimethyldithiocarbamate”

✓ located verbatim in the source · title, characters 0–77 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Zerlate treatment significantly increased valine.

Treatment
Zinc Dimethyldithiocarbamatet0
Outcome
Valinee0
Direction
increasede0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Valine and leucine also increased significantly”

✓ located verbatim in the source · abstract, characters 412–459 · show in text ↑
t0

“Free Amino Acids in Sugar-Beet Leaves Altered by Zinc Dimethyldithiocarbamate”

✓ located verbatim in the source · title, characters 0–77 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Zerlate treatment significantly increased leucine.

Treatment
Zinc Dimethyldithiocarbamatet0
Outcome
leucinee0
Direction
increasede0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Valine and leucine also increased significantly”

✓ located verbatim in the source · abstract, characters 412–459 · show in text ↑
t0

“Free Amino Acids in Sugar-Beet Leaves Altered by Zinc Dimethyldithiocarbamate”

✓ located verbatim in the source · title, characters 0–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tyrosine appeared faintly after treatment but was absent in controls.

Treatment
treated samplese0
Outcome
Tyrosinee0
Direction
appeared faintlye0
Comparator
controlse0

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Tyrosine, undetected in controls, appeared faintly in treated samples”

✓ located verbatim in the source · abstract, characters 461–530 · show in text ↑
t0

“Sugar-Beet Leaves”

✓ located verbatim in the source · title, characters 20–37 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors infer Zerlate causes glutamic acid to accumulate in roots while declining in leaves.

Treatment
treatment with Zerlatee0
Outcome
glutamic acid decreases in the leaves and accumulates in the rootse0
Qualifier
metabolic shifte0

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Apparently such treatment with Zerlate induces a metabolic shift wherein glutamic acid decreases in the leaves and accumulates in the roots of sugar beets”

✓ located verbatim in the source · abstract, characters 535–689 · show in text ↑

zinc atom · molecular: metabolites · Beta vulgaris (beet)Positive and negative results

11 papers: 9 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

7 papers more in this group

See all 11 papers →

dimethyldithiocarbamate · molecular: metabolites · Beta vulgaris (beet)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
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.