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
Claim · model-written summary
NaCl increased soluble carbohydrate concentration in growing leaf tissue.
- Taxon
- Hordeum vulgare
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Hordeum 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.
.jpg?width=500)
Verbatim
e0“The NaCl treatments increased the concentrations of soluble carbohydrate in the elongating tissues of the growing leaf, while starch did not change.”
t0“Hordeum vulgare”
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.
Verbatim
e0“The NaCl treatments increased the concentrations of soluble carbohydrate in the elongating tissues of the growing leaf, while starch did not change.”
t0“Hordeum vulgare”
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.
Verbatim
e0“This shows that photosynthesis was not limiting growth”
t0“Hordeum vulgare”
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.
Verbatim
e0“Leaf elongation increased rapidly after transfer of plants from 120 to 60 mM NaCl”
t0“Hordeum vulgare”
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.
Verbatim
e0“The rate elongation during the first hour after transfer was already equal to that of plants grown at 60 mM NaCl”
t0“Hordeum vulgare”
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.
Verbatim
e0“despite the persistence of high Cl− and (Na+ + K+) concentrations in elongating as well as fully elongated tissues”
t0“Hordeum vulgare”
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.
Verbatim
e0“This indicates that the growing tissues suffered from water deficit rather than from adverse effects of ions on metabolism”
t0“Hordeum vulgare”
The same questions in other papers
sodium chloride · growth · Hordeum vulgare (barley)Results differ
5 papers in the same direction as this paper · 41 in the opposite direction
- negative
- negative
- 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.