Paper · 1970 · PLANT PHYSIOLOGY

Enzyme Levels in Pea Seedlings Grown on Highly Salinized Media

Ralph Weimberg

4
claims
9
verbatim quotes
61
citations
1
research areas
✓
Open access

Abstract

The levels of 18 enzymes were determined in leaves, stems, and roots of 11-day-old pea seedlings grown in a liquid medium or in the same medium containing, in addition, 5 atmospheres of either NaCl, KCl, Na(2)SO(4), or K(2)SO(4). Though the plants grown in saline media were stunted, the specific activities of the enzymes were the same in the given tissues of all plants. Also, the electrophoretic pattern of isozymes of malate dehydrogenase was not altered by growth of the plants in a saline medium. However, the isozyme pattern of peroxidase from roots of salt-grown plants was altered in that two of the five detectable isozymes migrated a little more slowly than those in extracts from nonsaline plant tissues.

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Claims 4

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pea seedlings grown in saline media were stunted.

Taxon
Pea SeedlingsLathyrus oleraceust0
Treatment
saline mediae0
Outcome
plants grown in saline media were stuntede0
Direction
stuntede0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the plants grown in saline media were stunted”

✓ located verbatim in the source · abstract, characters 237–282 · show in text ↑
t0

“Pea Seedlings”

✓ located verbatim in the source · title, characters 17–30 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The 18 enzyme specific activities were the same across saline and control media within tissues.

Taxon
Pea SeedlingsLathyrus oleraceust0
Organ / stage
tissuese0
Treatment
NaCl, KCl, Na(2)SO(4), or K(2)SO(4)e1
Outcome
specific activities of the enzymese0
Direction
the samee0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the specific activities of the enzymes were the same in the given tissues of all plants”

✓ located verbatim in the source · abstract, characters 284–371 · show in text ↑
e1

“5 atmospheres of either NaCl, KCl, Na(2)SO(4), or K(2)SO(4)”

✓ located verbatim in the source · abstract, characters 169–228 · show in text ↑
t0

“Pea Seedlings”

✓ located verbatim in the source · title, characters 17–30 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Malate dehydrogenase isozyme electrophoretic pattern did not change in saline medium.

Taxon
Pea SeedlingsLathyrus oleraceust0
Treatment
saline mediume0
Gene
malate dehydrogenasee0
Outcome
electrophoretic pattern of isozymes of malate dehydrogenasee0
Direction
not alterede0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the electrophoretic pattern of isozymes of malate dehydrogenase was not altered by growth of the plants in a saline medium”

✓ located verbatim in the source · abstract, characters 379–501 · show in text ↑
t0

“Pea Seedlings”

✓ located verbatim in the source · title, characters 17–30 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Root peroxidase isozyme pattern changed under salt; two of five isozymes migrated more slowly than in nonsaline tissue.

Taxon
Pea SeedlingsLathyrus oleraceust0
Organ / stage
rootse0
Treatment
salt-growne0
Gene
peroxidasee0
Outcome
isozyme pattern of peroxidase from rootse0
Direction
more slowlye0
Value
two of the fivee0
Comparator
nonsaline plant tissuese0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the isozyme pattern of peroxidase from roots of salt-grown plants was altered in that two of the five detectable isozymes migrated a little more slowly than those in extracts from nonsaline plant tissues”

✓ located verbatim in the source · abstract, characters 512–715 · show in text ↑
t0

“Pea Seedlings”

✓ located verbatim in the source · title, characters 17–30 · show in text ↑

sodium sulfate · physiology: enzyme activity · Lathyrus oleraceus (pea)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 →

in vitro · molecular: metabolites · Lathyrus oleraceus (pea)Positive and negative results

10 papers: 3 positive, 7 negative or no effect

6 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

salinity · molecular: metabolites · Lathyrus oleraceus (pea)Positive and negative results

15 papers: 1 positive, 14 negative or no effect

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

  1. positive
  2. negative
  3. negative

11 papers more in this group

See all 15 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.