Abstract
Abstract There exists a great variability among plant species regarding their sensitivity and resistance to high salinity in soil, and most often this variability is related with the ability of a particular plant species to regulate ion homeostasis and transport. In this study, we have investigated the effects of NaCl on growth rate, water status, and ion distribution in different cells and tissues of two succulent plants, Aloe vera and Salicornia europaea. Our results showed that the growth of A. vera seedlings was significantly decreased in response to salinity. However, the growth of S. europaea seedlings was greatly stimulated by high concentrations of NaCl. Under saline conditions, S. europaea seedlings maintained K + and Ca 2+ uptake in roots and showed a higher root‐to‐shoot flux of Na + and Cl – as compared to A. vera. Despite great accumulation of Na + and Cl – in photosynthetically active shoot cells in S. europaea, its growth was enhanced, indicating S. europaea is capable of compartmentalizing salt ions in the vacuoles of shoot cells. Aloe vera seedlings, however, showed a low transport rate of Na + and Cl – to leaves and suppressed uptake of K + and Ca 2+ in roots during NaCl treatment. Our results also implicate that A. vera may be able to accumulate Na + and Cl – in the metabolically inactive aqueous cells in leaves and, as a result, the plant can survive and can maintain growth under saline conditions.
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Claims 9
Claim · model-written summary
Growth of A. vera seedlings was significantly decreased in response to salinity.
Aloe veraNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of A. vera seedlings was significantly decreased in response to salinity”
Claim · model-written summary
Growth of S. europaea seedlings was greatly stimulated by high concentrations of NaCl.
- Taxon
- S. europaea
_01.jpg?width=60)
Salicornia europaeae2 - Organ / stage
- seedlingse2
- Treatment
- high concentrations of NaCle2
- Outcome
- growthe2
- Direction
- greatly stimulatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_01.jpg?width=500)
Verbatim
e2“the growth of S. europaea seedlings was greatly stimulated by high concentrations of NaCl”
Claim · model-written summary
Under saline conditions, S. europaea seedlings maintained K+ and Ca2+ uptake in roots.
- Taxon
- S. europaeaSalicornia europaeae3
- Organ / stage
- rootse3
- Outcome
- K + and Ca 2+ uptakee3
- Qualifier
- Under saline conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Under saline conditions, S. europaea seedlings maintained K + and Ca 2+ uptake in roots”
Claim · model-written summary
Under saline conditions, S. europaea had a higher root-to-shoot flux of Na+ and Cl– than A. vera.
- Taxon
- S. europaeaSalicornia europaeae3
- Treatment
- Under saline conditionse3
- Outcome
- root‐to‐shoot flux of Na + and Cl –e4
- Direction
- highere4
- Comparator
- A. verae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Under saline conditions, S. europaea seedlings maintained K + and Ca 2+ uptake in roots”
e4“showed a higher root‐to‐shoot flux of Na + and Cl – as compared to A. vera”
Claim · model-written summary
S. europaea accumulated Na+ and Cl– in photosynthetically active shoot cells, while its growth was enhanced.
- Taxon
- S. europaeaSalicornia europaeae5
- Organ / stage
- photosynthetically active shoot cellse5
- Outcome
- accumulation of Na + and Cl –e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Despite great accumulation of Na + and Cl – in photosynthetically active shoot cells in S. europaea, its growth was enhanced”
Claim · model-written summary
S. europaea is capable of compartmentalizing salt ions in the vacuoles of its shoot cells.
- Taxon
- S. europaeaSalicornia europaeae6
- Organ / stage
- shoot cellse6
- Outcome
- compartmentalizing salt ionse6
- Qualifier
- in the vacuolese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“S. europaea is capable of compartmentalizing salt ions in the vacuoles of shoot cells”
Claim · model-written summary
Aloe vera seedlings showed a low transport rate of Na+ and Cl– to leaves during NaCl treatment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Aloe vera seedlings, however, showed a low transport rate of Na + and Cl – to leaves and suppressed uptake of K + and Ca 2+ in roots during NaCl treatment”
Claim · model-written summary
Aloe vera suppressed K+ and Ca2+ uptake in roots during NaCl treatment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Aloe vera seedlings, however, showed a low transport rate of Na + and Cl – to leaves and suppressed uptake of K + and Ca 2+ in roots during NaCl treatment”
Claim · model-written summary
A. vera may accumulate Na+ and Cl– in metabolically inactive aqueous leaf cells and so survive and maintain growth under saline conditions.
- Organ / stage
- aqueous cells in leavese7
- Outcome
- survive and can maintain growth under saline conditionse7
- Qualifier
- may be able toe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“A. vera may be able to accumulate Na + and Cl – in the metabolically inactive aqueous cells in leaves and, as a result, the plant can survive and can maintain growth under saline conditions”
The same questions in other papers
sodium chloride · nutrient: content · Aloe vera (aloe-vera)Positive and negative results
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sodium chloride · growth · Salicornia europaea (common glasswort)Positive and negative results
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See all 17 papers →salinity · growth · Aloe vera (aloe-vera)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
- negative
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See all 10 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.