Abstract
Moderate levels of Cl- have been associated with grapevine salt tolerance. The hypothesis to be tested in this work is: photosynthesis in grapevine is negatively correlated with foliar Cl- concentration. To further test this hypothesis, multiple mild salinity experiments on four different Vitis genotypes (Cabernet-Sauvignon, Riparia Gloire, Ramsey and SC2) were conducted and photosynthesis, ion concentrations and gene expression responses were quantified. The salt-tolerant rootstock Ramsey had greater Cl- exclusion capabilities than V. vinifera cultivars both during rooted cutting greenhouse experiments and three years of field-grafted experiments; SC2 also excluded Cl-. Differential gene expression indicated that salinity affected transcript abundance more in salt-sensitive genotypes (97.7 % of DEGs in the dataset), especially chloroplast-related transcripts. The transcript abundances of known anion transporters were determined and a family of putative B transporters was associated with the Cl- exclusion phenotype. Photosynthesis and growth were maintained in Ramsey and SC2 under mild salinity. However, photosynthesis declined in Cabernet-Sauvignon with isosmotic 20 mM salt concentrations of NaCl, KCl or NaNO3, independent of the salt type. While foliar Cl- concentrations did correlate with salt tolerance during control and NaCl conditions, it was not found to be the cause of photosynthetic decline in Vitis during mild salinity.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
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 11
Claim · model-written summary
Ramsey excluded more chloride than V. vinifera cultivars in greenhouse and field experiments.
- Material
- Ramseye0
- Outcome
- Cl- exclusion capabilitiese0
- Direction
- greatere0
- Comparator
- V. vinifera cultivarse0
- Setting
- greenhouse experimentse0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The salt-tolerant rootstock Ramsey had greater Cl- exclusion capabilities than V. vinifera cultivars both during rooted cutting greenhouse experiments and three years of field-grafted experiments”
t0“grapevine”
Claim · model-written summary
SC2 excluded chloride.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC2 also excluded Cl-”
t0“grapevine”
Claim · model-written summary
Salinity affected transcript abundance more in salt-sensitive genotypes, comprising 97.7% of DEGs.
- Treatment
- salinitye0
- Outcome
- transcript abundancee0
- Direction
- moree0
- Value
- 97.7 %e0
- Qualifier
- especially chloroplast-related transcriptse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity affected transcript abundance more in salt-sensitive genotypes (97.7 % of DEGs in the dataset), especially chloroplast-related transcripts”
t0“grapevine”
Claim · model-written summary
A putative B transporter family was associated with chloride exclusion.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a family of putative B transporters was associated with the Cl- exclusion phenotype”
t0“grapevine”
Claim · model-written summary
Ramsey maintained photosynthesis and growth under mild salinity.
- Material
- Ramseye0
- Outcome
- Photosynthesis and growthe0
- Direction
- maintainede0
- Qualifier
- under mild salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthesis and growth were maintained in Ramsey and SC2 under mild salinity”
t0“grapevine”
Claim · model-written summary
SC2 maintained photosynthesis and growth under mild salinity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthesis and growth were maintained in Ramsey and SC2 under mild salinity”
t0“grapevine”
Claim · model-written summary
Cabernet-Sauvignon photosynthesis declined with 20 mM NaCl.
- Material
- Cabernet-Sauvignone0
- Treatment
- 20 mM salt concentrations of NaCle0
- Outcome
- photosynthesise0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis declined in Cabernet-Sauvignon with isosmotic 20 mM salt concentrations of NaCl, KCl or NaNO3, independent of the salt type”
t0“grapevine”
Claim · model-written summary
Cabernet-Sauvignon photosynthesis declined with 20 mM KCl.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis declined in Cabernet-Sauvignon with isosmotic 20 mM salt concentrations of NaCl, KCl or NaNO3, independent of the salt type”
t0“grapevine”
Claim · model-written summary
Cabernet-Sauvignon photosynthesis declined with 20 mM NaNO3.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis declined in Cabernet-Sauvignon with isosmotic 20 mM salt concentrations of NaCl, KCl or NaNO3, independent of the salt type”
t0“grapevine”
Claim · model-written summary
Foliar chloride correlated with salt tolerance in control and NaCl conditions.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar Cl- concentrations did correlate with salt tolerance during control and NaCl conditions”
t0“grapevine”
Claim · model-written summary
Foliar chloride was not found to cause photosynthetic decline in mild salinity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was not found to be the cause of photosynthetic decline in Vitis during mild salinity”
The same questions in other papers
sodium chloride · physiology: photosynthesis · VitisPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
nanoparticle · physiology: photosynthesis · VitisPositive and negative results
2 in the opposite direction
- positive
- positive
salinity · physiology: photosynthesis · VitisResults agree
11 papers in the same direction as this paper
- negative
- negative
- negative
8 papers more in this group
See all 12 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.