Paper · 1982 · Journal of Experimental Botany

Ion Concentration and Carbohydrate Status of the Elongating Leaf Tissue 4Hordeum vulgare Growing at High External NaCl: II. CAUSE OF THE GROWTH REDUCTION

R. MUNNS; H. GREENWAY; R. DELANE; et al.

7
claims
14
verbatim quotes
149
citations
1
research areas
—
Not open access

Abstract

The cause for the growth reduction of a salt-tolerant variety of barley (cv. ‘Beecher’) was investigated in plants growth for 5 d at 120 mM and 180 mM NaCl. The NaCl treatments increased the concentrations of soluble carbohydrate in the elongating tissues of the growing leaf, while starch did not change. This shows that photosynthesis was not limiting growth, and indicates that the cause for the growth reduction was located in the growing leaves, specifically in the elongating tissue. Leaf elongation increased rapidly after transfer of plants from 120 to 60 mM NaCl. The rate elongation during the first hour after transfer was already equal to that of plants grown at 60 mM NaCl, despite the persistence of high Cl− and (Na+ + K+) concentrations in elongating as well as fully elongated tissues. This indicates that the growing tissues suffered from water deficit rather than from adverse effects of ions on metabolism.

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Claims 7

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl increased soluble carbohydrate concentration in growing leaf tissue.

Taxon
Hordeum vulgareHordeum vulgaret0
Organ / stage
elongating tissues of the growing leafe0
Treatment
NaCl treatmentse0
Outcome
concentrations of soluble carbohydratee0
Direction
increasede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The NaCl treatments increased the concentrations of soluble carbohydrate in the elongating tissues of the growing leaf, while starch did not change.”

✓ located verbatim in the source · abstract, characters 157–305 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Starch did not change under NaCl treatment.

Taxon
Hordeum vulgareHordeum vulgaret0
Treatment
NaCl treatmentse0
Outcome
starche0
Direction
did not changee0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The NaCl treatments increased the concentrations of soluble carbohydrate in the elongating tissues of the growing leaf, while starch did not change.”

✓ located verbatim in the source · abstract, characters 157–305 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors infer that photosynthesis did not limit leaf growth.

Taxon
Hordeum vulgareHordeum vulgaret0
Outcome
photosynthesis was not limiting growthe0
Qualifier
photosynthesise0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“This shows that photosynthesis was not limiting growth”

✓ located verbatim in the source · abstract, characters 306–360 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf elongation rose rapidly after transfer from 120 to 60 mM NaCl.

Taxon
Hordeum vulgareHordeum vulgaret0
Treatment
transfer of plants from 120 to 60 mM NaCle0
Outcome
Leaf elongatione0
Direction
increased rapidlye0
Comparator
120e0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Leaf elongation increased rapidly after transfer of plants from 120 to 60 mM NaCl”

✓ located verbatim in the source · abstract, characters 490–571 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Within one hour after transfer, elongation rate equaled that of plants grown at 60 mM NaCl.

Taxon
Hordeum vulgareHordeum vulgaret0
Outcome
rate elongatione0
Direction
equal toe0
Qualifier
during the first hour after transfere0
Comparator
plants grown at 60 mM NaCle0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The rate elongation during the first hour after transfer was already equal to that of plants grown at 60 mM NaCl”

✓ located verbatim in the source · abstract, characters 573–685 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

High ion concentrations persisted in elongating and fully elongated tissues after transfer.

Taxon
Hordeum vulgareHordeum vulgaret0
Organ / stage
elongating as well as fully elongated tissuese0
Outcome
high Cl− and (Na+ + K+) concentrationse0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“despite the persistence of high Cl− and (Na+ + K+) concentrations in elongating as well as fully elongated tissues”

✓ located verbatim in the source · abstract, characters 687–801 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors attribute the growth reduction to water deficit rather than ion effects on metabolism.

Taxon
Hordeum vulgareHordeum vulgaret0
Outcome
growing tissues suffered from water deficite0
Qualifier
water deficit rather than from adverse effects of ions on metabolisme0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“This indicates that the growing tissues suffered from water deficit rather than from adverse effects of ions on metabolism”

✓ located verbatim in the source · abstract, characters 803–925 · show in text ↑
t0

“Hordeum vulgare”

✓ located verbatim in the source · title, characters 73–88 · show in text ↑

sodium chloride · growth · Hordeum vulgare (barley)Results differ

47 papers: 6 positive, 41 negative or no effect

5 papers in the same direction as this paper · 41 in the opposite direction

  1. negative
  2. negative
  3. positive

43 papers more in this group

See all 47 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.