Abstract
Olive can be considered as moderately tolerant to salinity, with marked differences among cultivars. In the present study, two olive cultivars with different salt tolerance, 'Leccino' (sensitive) and 'Frantoio' (tolerant), were treated with 120 mM of NaCl for 30 days. We measured the expression of genes involved in the management of sodium in the leaves, such as NHX, SOS1 and H+ ATPase, and the concentration of Na+, K+, Mn2+, Mg2+ and Ca2+ in the roots, bark, xylem and leaves of the olive plants. The results were analyzed with multiple linear models and mixed models. Furthermore, we utilized the analysis of covariance to find significant relationships in our data. Both cultivars significantly reduced net photosynthesis and increased water-use efficiency after 30 days of treatment. Sodium accumulated significantly in the roots of both cultivars, and 'Leccino' plants were also able to translocate it to the leaves and the bark. The NHX and vacuolar ATPase subunit E genes were significantly overexpressed in both the cultivars treated with NaCl. The SOS1, ATPase11 and ATPase8 genes were overexpressed in 'Frantoio'. The covariance between gene expression and element concentrations data was analyzed to identify significant interactions between cultivars and treatments. Na+ accumulation in the roots of 'Frantoio' was positively related to the accumulation of K+, Mn2+, Mg2+ and Ca2+ in the xylem, bark and leaves. 'Frantoio' capability to mobilize elements, especially Ca2+, together with the overexpression of key genes for sodium management, could be crucial for salt tolerance.
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Claims 8
Claim · model-written summary
Both cultivars reduced net photosynthesis after NaCl treatment.
- Taxon
- Olea europaea L.
Olea europaeat0 - Treatment
- 120 mM of NaClt1
- Outcome
- net photosynthesise0
- Direction
- reducede0
- Qualifier
- after 30 days of treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both cultivars significantly reduced net photosynthesis and increased water-use efficiency after 30 days of treatment”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
Both cultivars increased water-use efficiency after NaCl treatment.
- Taxon
- Olea europaea L.Olea europaeat0
- Treatment
- 120 mM of NaClt1
- Outcome
- water-use efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both cultivars significantly reduced net photosynthesis and increased water-use efficiency after 30 days of treatment”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
Sodium accumulated in the roots of both cultivars.
- Taxon
- Olea europaea L.Olea europaeat0
- Organ / stage
- rootse0
- Outcome
- Sodium accumulatede0
- Direction
- accumulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sodium accumulated significantly in the roots of both cultivars”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
Leccino translocated sodium to leaves and bark.
- Taxon
- Olea europaea L.Olea europaeat0
- Material
- 'Leccino'e0
- Outcome
- translocate it to the leaves and the barke0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Leccino' plants were also able to translocate it to the leaves and the bark”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
NHX and vacuolar ATPase subunit E were overexpressed under NaCl in both cultivars.
- Taxon
- Olea europaea L.Olea europaeat0
- Treatment
- NaCle0
- Gene
- NHX and vacuolar ATPase subunit Ee0
- Outcome
- genes were significantly overexpressede0
- Direction
- overexpressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NHX and vacuolar ATPase subunit E genes were significantly overexpressed in both the cultivars treated with NaCl”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
SOS1, ATPase11 and ATPase8 were overexpressed in Frantoio.
- Taxon
- Olea europaea L.Olea europaeat0
- Material
- 'Frantoio'e0
- Gene
- SOS1, ATPase11 and ATPase8e0
- Outcome
- genes were overexpressede0
- Direction
- overexpressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SOS1, ATPase11 and ATPase8 genes were overexpressed in 'Frantoio'”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
Frantoio root sodium accumulation was positively related to K, Mn, Mg and Ca accumulation in aboveground tissues.
- Taxon
- Olea europaea L.Olea europaeat0
- Material
- 'Frantoio'e0
- Compound
- Na+e0
- Outcome
- accumulation of K+, Mn2+, Mg2+ and Ca2+ in the xylem, bark and leavese0
- Direction
- positivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Na+ accumulation in the roots of 'Frantoio' was positively related to the accumulation of K+, Mn2+, Mg2+ and Ca2+ in the xylem, bark and leaves”
t0“Olea europaea L.”
t1“120 mM of NaCl”
Claim · model-written summary
Authors suggest element mobilization, especially Ca, with sodium management gene expression may contribute to Frantoio salt tolerance.
- Taxon
- Olea europaea L.Olea europaeat0
- Material
- 'Frantoio'e0
- Compound
- Ca2+e0
- Outcome
- salt tolerancee0
- Qualifier
- could be cruciale0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Frantoio' capability to mobilize elements, especially Ca2+, together with the overexpression of key genes for sodium management, could be crucial for salt tolerance”
t0“Olea europaea L.”
t1“120 mM of NaCl”
The same questions in other papers
sodium chloride · physiology: water · Olea europaea (common olive)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
sodium chloride · physiology: photosynthesis · Olea europaea (common olive)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
4 papers more in this group
See all 8 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.