Abstract
Nanyou 2 and Nanyou 3 are two cultivars of barbadosnut(Jatropha curcas L.) with different genotypes.Physiological and ecological responses of these two cultivars to salt stress were studied by comparing their tolerances to various concentrations of NaCl.When the seedlings were exposed to NaCl at 25 and 50 mmol·L-1,Nanyou 2 showed no change while Nanyou 3 decreased significantly in total dry weight.When treated with NaCl at 100 mmol·L-1 or higher concentrations,the total dry weight of seedlings of both cultivars decreased significantly,and Nanyou 3 decreased to a greater extent than Nanyou 2 did.Relative water contents of seedling leaves showed no changes upon treatment with NaCl at 200mmol·L-1 or lower concentrations,but a significant decrease by 5% and 8% in Nanyou 2 and Nanyou 3,respectively,upon treatment with NaCl at 300mmol·L-1.When treated with NaCl at 25 and 50 mmol·L-1,Nanyou 2 decreased significantly whereas Nanyou 3 showed no change in the soluble sugar contents.As the NaCl concentration increased to 200 and 300 mmol·L-1,the soluble sugar contents of both cultivars decreased significantly.Meanwhile,Nanyou 2 had a significant increase while Nanyou 3 showed no change in the soluble protein contents.The SOD activity of Nanyou 2 displayed an increase-decrease curve as the NaCl concentrations increased,and,upon treatment with NaCl at 300mmol·L-1,it was significantly lower than the control plants.The SOD activity of Nanyou 3 decreased steadily as salt concentrations increased and was significantly lower than the control plants in all treatments.The POD activities of both cultivars showed no differences with the control plants as treated with 25 and 50 mmol·L-1 of NaCl.As the NaCl concentrations increased,POD activity of Nanyou 2 increased and that of Nanyou 3 decrease significantly as compared to corresponding controls.The CAT activities of both cultivars increased significantly when treated with NaCl at 25 and 50 mmol·L-1,and then showed similar trend as the SOD activities did in both cultivars respectively as the salt concentrations increased.These results suggested that barbadosnut seedlings were salt tolerant,and the Nanyou 2 was more tolerant than Nanyou 3,mainly due to its higher protective enzyme activities,ability to maintain higher leaf water contents and higher soluble protein contents upon exposure to salt stress.
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Claims 19
Claim · model-written summary
At 25 and 50 mmol·L-1 NaCl, Nanyou 2 dry weight did not change.
- Taxon
- Jatropha curcas L.
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Jatropha curcast0 - Material
- Nanyou 2e0
- Treatment
- NaCl at 25 and 50 mmol·L-1e0
- Outcome
- total dry weighte0
- Direction
- no changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_tree_at_Samedha.jpg?width=500)
Verbatim
e0“When the seedlings were exposed to NaCl at 25 and 50 mmol·L-1,Nanyou 2 showed no change while Nanyou 3 decreased significantly in total dry weight.”
t0“Jatropha curcas L.”
Claim · model-written summary
At 25 and 50 mmol·L-1 NaCl, Nanyou 3 dry weight decreased significantly.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 3e0
- Treatment
- NaCl at 25 and 50 mmol·L-1e0
- Outcome
- total dry weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the seedlings were exposed to NaCl at 25 and 50 mmol·L-1,Nanyou 2 showed no change while Nanyou 3 decreased significantly in total dry weight.”
t0“Jatropha curcas L.”
Claim · model-written summary
At 100 mmol·L-1 or more NaCl, dry weight decreased significantly in both cultivars, more in Nanyou 3.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Treatment
- NaCl at 100 mmol·L-1 or higher concentrationse0
- Outcome
- total dry weighte0
- Direction
- decreasede0
- Qualifier
- Nanyou 3 decreased to a greater extent than Nanyou 2 dide0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When treated with NaCl at 100 mmol·L-1 or higher concentrations,the total dry weight of seedlings of both cultivars decreased significantly,and Nanyou 3 decreased to a greater extent than Nanyou 2 did.”
t0“Jatropha curcas L.”
Claim · model-written summary
At up to 200 mmol·L-1 NaCl, leaf relative water content did not change.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Treatment
- NaCl at 200mmol·L-1 or lower concentrationse0
- Outcome
- Relative water contents of seedling leavese0
- Direction
- no changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative water contents of seedling leaves showed no changes upon treatment with NaCl at 200mmol·L-1 or lower concentrations”
t0“Jatropha curcas L.”
Claim · model-written summary
At 300 mmol·L-1 NaCl, Nanyou 2 leaf water content fell 5%.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 2e0
- Treatment
- NaCl at 300mmol·L-1e0
- Outcome
- Relative water contents of seedling leavese1
- Direction
- decreasee0
- Value
- 5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant decrease by 5% and 8% in Nanyou 2 and Nanyou 3,respectively,upon treatment with NaCl at 300mmol·L-1.”
t0“Jatropha curcas L.”
e1“Relative water contents of seedling leaves”
Claim · model-written summary
At 300 mmol·L-1 NaCl, Nanyou 3 leaf water content fell 8%.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 3e0
- Treatment
- NaCl at 300mmol·L-1e0
- Outcome
- Relative water contents of seedling leavese1
- Direction
- decreasee0
- Value
- 8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant decrease by 5% and 8% in Nanyou 2 and Nanyou 3,respectively,upon treatment with NaCl at 300mmol·L-1.”
t0“Jatropha curcas L.”
e1“Relative water contents of seedling leaves”
Claim · model-written summary
At 25 and 50 mmol·L-1 NaCl, soluble sugar fell in Nanyou 2.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 2e0
- Treatment
- NaCl at 25 and 50 mmol·L-1e0
- Outcome
- soluble sugar contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When treated with NaCl at 25 and 50 mmol·L-1,Nanyou 2 decreased significantly whereas Nanyou 3 showed no change in the soluble sugar contents.”
t0“Jatropha curcas L.”
Claim · model-written summary
At 25 and 50 mmol·L-1 NaCl, soluble sugar did not change in Nanyou 3.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 3e0
- Treatment
- NaCl at 25 and 50 mmol·L-1e0
- Outcome
- soluble sugar contentse0
- Direction
- no changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When treated with NaCl at 25 and 50 mmol·L-1,Nanyou 2 decreased significantly whereas Nanyou 3 showed no change in the soluble sugar contents.”
t0“Jatropha curcas L.”
Claim · model-written summary
At 200 and 300 mmol·L-1 NaCl, soluble sugar decreased significantly in both cultivars.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Treatment
- NaCl concentration increased to 200 and 300 mmol·L-1e0
- Outcome
- soluble sugar contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the NaCl concentration increased to 200 and 300 mmol·L-1,the soluble sugar contents of both cultivars decreased significantly.”
t0“Jatropha curcas L.”
Claim · model-written summary
Soluble protein increased significantly in Nanyou 2.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 2e0
- Outcome
- soluble protein contentse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nanyou 2 had a significant increase while Nanyou 3 showed no change in the soluble protein contents.”
t0“Jatropha curcas L.”
Claim · model-written summary
Soluble protein did not change in Nanyou 3.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 3e0
- Outcome
- soluble protein contentse0
- Direction
- no changee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nanyou 2 had a significant increase while Nanyou 3 showed no change in the soluble protein contents.”
t0“Jatropha curcas L.”
Claim · model-written summary
Nanyou 2 SOD activity first rose then fell as NaCl increased, ending below control at 300 mmol·L-1.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 2e0
- Gene
- SODe0
- Outcome
- SOD activitye0
- Direction
- increase-decreasee0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SOD activity of Nanyou 2 displayed an increase-decrease curve as the NaCl concentrations increased,and,upon treatment with NaCl at 300mmol·L-1,it was significantly lower than the control plants.”
t0“Jatropha curcas L.”
Claim · model-written summary
Nanyou 3 SOD activity fell steadily with salinity and was below control in all treatments.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 3e0
- Gene
- SODe0
- Outcome
- SOD activitye0
- Direction
- decreasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SOD activity of Nanyou 3 decreased steadily as salt concentrations increased and was significantly lower than the control plants in all treatments.”
t0“Jatropha curcas L.”
Claim · model-written summary
At 25 and 50 mmol·L-1 NaCl, POD activity did not differ from controls in either cultivar.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Treatment
- 25 and 50 mmol·L-1 of NaCle0
- Gene
- PODe0
- Outcome
- POD activitiese0
- Direction
- no differencese0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The POD activities of both cultivars showed no differences with the control plants as treated with 25 and 50 mmol·L-1 of NaCl.”
t0“Jatropha curcas L.”
Claim · model-written summary
At higher NaCl, Nanyou 2 POD activity rose.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 2e0
- Gene
- PODe0
- Outcome
- POD activitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the NaCl concentrations increased,POD activity of Nanyou 2 increased and that of Nanyou 3 decrease significantly as compared to corresponding controls.”
t0“Jatropha curcas L.”
Claim · model-written summary
At higher NaCl, Nanyou 3 POD activity fell significantly versus controls.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 3e0
- Gene
- PODe0
- Outcome
- POD activitye0
- Direction
- decreasee0
- Comparator
- corresponding controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the NaCl concentrations increased,POD activity of Nanyou 2 increased and that of Nanyou 3 decrease significantly as compared to corresponding controls.”
t0“Jatropha curcas L.”
Claim · model-written summary
CAT activity rose significantly in both cultivars at 25 and 50 mmol·L-1 NaCl.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Treatment
- NaCl at 25 and 50 mmol·L-1e0
- Gene
- CATe0
- Outcome
- CAT activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CAT activities of both cultivars increased significantly when treated with NaCl at 25 and 50 mmol·L-1”
t0“Jatropha curcas L.”
Claim · model-written summary
At higher NaCl, CAT activity followed the cultivar-specific SOD trends.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Gene
- CATe1
- Outcome
- CAT activitiese1
- Qualifier
- similar trend as the SOD activitiese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“then showed similar trend as the SOD activities did in both cultivars respectively as the salt concentrations increased.”
t0“Jatropha curcas L.”
e1“The CAT activities of both cultivars”
Claim · model-written summary
The authors inferred Nanyou 2 was more salt tolerant than Nanyou 3.
- Taxon
- Jatropha curcas L.Jatropha curcast0
- Material
- Nanyou 2e0
- Outcome
- salt tolerante0
- Direction
- more tolerante0
- Comparator
- Nanyou 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barbadosnut seedlings were salt tolerant,and the Nanyou 2 was more tolerant than Nanyou 3”
t0“Jatropha curcas L.”
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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.