Abstract
This study aimed to analyze element content, antioxidative response, and related gene expression in two new wheat (Tritium aestivum L.) cultivars Longchun 30 and Longchun 27 when exposed to different NaCl concentrations. Low NaCl concentration (25 mM) promoted root growth and decreased malondialdehyde (MDA) content and relative conductivity (REC) in Longchun 30. Differently, higher salinity stress (100 and 200 mM NaCl) inhibited root growth and increased MDA content and REC in both cultivars. Under salt stress, the increment of Na content in the roots and leaves and the reduction of Ca content in the roots were more remarkable in Longchun 27 than in Longchun 30. In contrast, the potassium content decreased in the roots but did not significantly change in the leaves in both cultivars under salinity. When the seedlings were exposed to salinity, the increases of superoxide dismutase (SOD) and catalase (CAT) activities in Longchun 27 roots were associated with high isoenzymes abundance and high TaCu/ZnSOD, TaMnSOD and TaCAT expression. Meanwhile, total peroxidase (POD) activity induced by NaCl treatment coincided with the changes of TaPOD expression and isoenzyme abundance in both cultivars. Besides, the inhibition of activities of apoplastic antioxidant enzymes, cell wall-bound POD, diamine oxidase, and polyamine oxidase was observed in salinity-stressed roots of both cultivars. Taken together, cv. Longchun 30 might be more suitable for growing in salinity environment in comparison with Longchun 27.
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Claims 11
Claim · model-written summary
25 mM NaCl promoted root growth in Longchun 30.
- Taxon
- wheat
Triticum aestivumt0 - Material
- Longchun 30e0
- Treatment
- 25 mMe0
- Outcome
- root growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low NaCl concentration (25 mM) promoted root growth and decreased malondialdehyde (MDA) content and relative conductivity (REC) in Longchun 30.”
t0“wheat”
Claim · model-written summary
25 mM NaCl decreased MDA and REC in Longchun 30.
- Taxon
- wheatTriticum aestivumt0
- Material
- Longchun 30e0
- Treatment
- 25 mMe0
- Outcome
- malondialdehyde (MDA) content and relative conductivity (REC)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low NaCl concentration (25 mM) promoted root growth and decreased malondialdehyde (MDA) content and relative conductivity (REC) in Longchun 30.”
t0“wheat”
Claim · model-written summary
Higher salinity inhibited root growth in both cultivars.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 100 and 200 mM NaCle0
- Outcome
- root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differently, higher salinity stress (100 and 200 mM NaCl) inhibited root growth and increased MDA content and REC in both cultivars.”
t0“wheat”
Claim · model-written summary
Higher salinity increased MDA and REC in both cultivars.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 100 and 200 mM NaCle0
- Outcome
- MDA content and RECe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differently, higher salinity stress (100 and 200 mM NaCl) inhibited root growth and increased MDA content and REC in both cultivars.”
t0“wheat”
Claim · model-written summary
Salt stress caused a greater Na increase in Longchun 27 than Longchun 30.
- Taxon
- wheatTriticum aestivumt0
- Material
- Longchun 27e0
- Treatment
- salt stresse0
- Outcome
- Na content in the roots and leavese0
- Direction
- incremente0
- Comparator
- Longchun 30e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under salt stress, the increment of Na content in the roots and leaves and the reduction of Ca content in the roots were more remarkable in Longchun 27 than in Longchun 30.”
t0“wheat”
Claim · model-written summary
Salt stress caused a greater root Ca reduction in Longchun 27.
- Taxon
- wheatTriticum aestivumt0
- Material
- Longchun 27e0
- Treatment
- salt stresse0
- Outcome
- Ca content in the rootse0
- Direction
- reductione0
- Comparator
- Longchun 30e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under salt stress, the increment of Na content in the roots and leaves and the reduction of Ca content in the roots were more remarkable in Longchun 27 than in Longchun 30.”
t0“wheat”
Claim · model-written summary
Salinity decreased root potassium in both cultivars.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- rootse0
- Treatment
- salinitye0
- Outcome
- potassium contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In contrast, the potassium content decreased in the roots but did not significantly change in the leaves in both cultivars under salinity.”
t0“wheat”
Claim · model-written summary
Salinity did not significantly change leaf potassium in either cultivar.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leavese0
- Treatment
- salinitye0
- Outcome
- potassium contente0
- Direction
- did not significantly changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In contrast, the potassium content decreased in the roots but did not significantly change in the leaves in both cultivars under salinity.”
t0“wheat”
Claim · model-written summary
Salinity increased SOD and CAT activity in Longchun 27 roots, associated with isoenzyme abundance and gene expression.
- Taxon
- wheatTriticum aestivumt0
- Material
- Longchun 27e0
- Organ / stage
- rootse0
- Treatment
- salinitye0
- Outcome
- superoxide dismutase (SOD) and catalase (CAT) activitiese0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the seedlings were exposed to salinity, the increases of superoxide dismutase (SOD) and catalase (CAT) activities in Longchun 27 roots were associated with high isoenzymes abundance and high TaCu/ZnSOD, TaMnSOD and TaCAT expression.”
t0“wheat”
Claim · model-written summary
NaCl-induced POD activity coincided with TaPOD expression and isoenzyme changes.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- NaCl treatmente0
- Gene
- TaPODe0
- Outcome
- total peroxidase (POD) activitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meanwhile, total peroxidase (POD) activity induced by NaCl treatment coincided with the changes of TaPOD expression and isoenzyme abundance in both cultivars.”
t0“wheat”
Claim · model-written summary
Salinity inhibited apoplastic antioxidant enzyme activities in both cultivars.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- salinity-stressede0
- Outcome
- activities of apoplastic antioxidant enzymes, cell wall-bound POD, diamine oxidase, and polyamine oxidasee0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Besides, the inhibition of activities of apoplastic antioxidant enzymes, cell wall-bound POD, diamine oxidase, and polyamine oxidase was observed in salinity-stressed roots of both cultivars.”
t0“wheat”
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