Abstract
In order to determine the effects of osmotic adjustment in alleviating or eliminating saline stress damage,the changes of some osmosis-related indexes in the roots of seedlings of stress-tolerant maize variety Nongda108 were studied after the treatments of mixed seawater with freshwater by the different ratio combined with nitric oxide donor,sodium nitroprusside(SNP) . The results indicate: following seawater rate increases,the contents of free proline, relative water and methyldialdehyde and relative electroconductance rise respectively,but the contents of soluble sugar decline in the roots of seedlings. When the seawater content is not above twenty-five percent,and as well as,the SNP concentration rise,the contents of proline,methyldialdehyde and relative water and relative electroconductance increase respectively,but the contents of soluble sugar decrease. When the seawater content is more than twenty-five percent,exogenously applying the SNP with high concentration obviously decreases the contents of proline,soluble sugar and relative water,and reduces relative electroconductance,whereas notably enhancing contents of methyldialdehyde. This means the osmotic function of nitric oxide on roots is related to the stress degree in the surroundings. In general,higher concentration of nitric oxide may evidently mitigates the slight seawater stress,but lower concentration of nitric oxide help alleviating severe seawater stress.
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Claims 12
Claim · model-written summary
Free proline, relative water and MDA contents rise as seawater rate increases in maize roots.
- Material
- Nongda108e0
- Organ / stage
- roots of seedlingse1
- Treatment
- seawater ratee1
- Outcome
- free proline, relative water and methyldialdehydee1
- Direction
- risee1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e1“following seawater rate increases,the contents of free proline, relative water and methyldialdehyde and relative electroconductance rise respectively,but the contents of soluble sugar decline in the roots of seedlings”
Claim · model-written summary
Relative electroconductance rises as seawater rate increases in maize roots.
- Material
- Nongda108e0
- Organ / stage
- roots of seedlingse1
- Treatment
- seawater ratee1
- Outcome
- relative electroconductancee1
- Direction
- risee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e1“following seawater rate increases,the contents of free proline, relative water and methyldialdehyde and relative electroconductance rise respectively,but the contents of soluble sugar decline in the roots of seedlings”
Claim · model-written summary
Soluble sugar contents decline as seawater rate increases in maize roots.
- Material
- Nongda108e0
- Organ / stage
- roots of seedlingse1
- Treatment
- seawater ratee1
- Outcome
- the contents of soluble sugare1
- Direction
- declinee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e1“following seawater rate increases,the contents of free proline, relative water and methyldialdehyde and relative electroconductance rise respectively,but the contents of soluble sugar decline in the roots of seedlings”
Claim · model-written summary
At seawater content up to 25%, raised SNP concentration increased proline, MDA and relative water contents in maize roots.
- Material
- Nongda108e0
- Treatment
- SNP concentratione2
- Outcome
- the contents of proline,methyldialdehyde and relative watere2
- Direction
- increasee2
- Qualifier
- the seawater content is not above twenty-five percente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e2“When the seawater content is not above twenty-five percent,and as well as,the SNP concentration rise,the contents of proline,methyldialdehyde and relative water and relative electroconductance increase respectively,but the contents of soluble sugar decrease”
Claim · model-written summary
At seawater content up to 25%, raised SNP concentration increased relative electroconductance in maize roots.
- Material
- Nongda108e0
- Treatment
- SNP concentratione2
- Outcome
- relative electroconductancee2
- Direction
- increasee2
- Qualifier
- the seawater content is not above twenty-five percente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e2“When the seawater content is not above twenty-five percent,and as well as,the SNP concentration rise,the contents of proline,methyldialdehyde and relative water and relative electroconductance increase respectively,but the contents of soluble sugar decrease”
Claim · model-written summary
At seawater content up to 25%, raised SNP concentration decreased soluble sugar contents in maize roots.
- Material
- Nongda108e0
- Treatment
- SNP concentratione2
- Outcome
- the contents of soluble sugare2
- Direction
- decreasee2
- Qualifier
- the seawater content is not above twenty-five percente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e2“When the seawater content is not above twenty-five percent,and as well as,the SNP concentration rise,the contents of proline,methyldialdehyde and relative water and relative electroconductance increase respectively,but the contents of soluble sugar decrease”
Claim · model-written summary
At seawater content above 25%, high-concentration SNP decreased proline, soluble sugar and relative water contents in maize roots.
- Material
- Nongda108e0
- Treatment
- exogenously applying the SNP with high concentratione3
- Outcome
- the contents of proline,soluble sugar and relative watere3
- Direction
- decreasese3
- Qualifier
- the seawater content is more than twenty-five percente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e3“When the seawater content is more than twenty-five percent,exogenously applying the SNP with high concentration obviously decreases the contents of proline,soluble sugar and relative water,and reduces relative electroconductance,whereas notably enhancing contents of methyldialdehyde”
Claim · model-written summary
At seawater content above 25%, high-concentration SNP reduced relative electroconductance in maize roots.
- Material
- Nongda108e0
- Treatment
- exogenously applying the SNP with high concentratione3
- Outcome
- relative electroconductancee3
- Direction
- reducese3
- Qualifier
- the seawater content is more than twenty-five percente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e3“When the seawater content is more than twenty-five percent,exogenously applying the SNP with high concentration obviously decreases the contents of proline,soluble sugar and relative water,and reduces relative electroconductance,whereas notably enhancing contents of methyldialdehyde”
Claim · model-written summary
At seawater content above 25%, high-concentration SNP notably increased MDA contents in maize roots.
- Material
- Nongda108e0
- Treatment
- exogenously applying the SNP with high concentratione3
- Outcome
- contents of methyldialdehydee3
- Direction
- enhancinge3
- Qualifier
- the seawater content is more than twenty-five percente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e3“When the seawater content is more than twenty-five percent,exogenously applying the SNP with high concentration obviously decreases the contents of proline,soluble sugar and relative water,and reduces relative electroconductance,whereas notably enhancing contents of methyldialdehyde”
Claim · model-written summary
The osmotic function of nitric oxide on maize roots is related to the stress degree.
- Treatment
- nitric oxidee4
- Outcome
- osmotic function of nitric oxide on rootse4
- Qualifier
- related to the stress degree in the surroundingse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e4“This means the osmotic function of nitric oxide on roots is related to the stress degree in the surroundings”
Claim · model-written summary
Higher nitric oxide concentration may mitigate slight seawater stress in maize roots.
- Treatment
- higher concentration of nitric oxidee5
- Outcome
- slight seawater stresse5
- Direction
- mitigatese5
- Qualifier
- may evidentlye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e5“higher concentration of nitric oxide may evidently mitigates the slight seawater stress”
Claim · model-written summary
Lower nitric oxide concentration may alleviate severe seawater stress in maize roots.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-tolerant maize variety Nongda108”
e6“lower concentration of nitric oxide help alleviating severe seawater stress”