Abstract
Aluminum (Al) effects on fatty acid composition and on the lipid peroxidation of a purified plasma membrane fraction of root apices of two sorghum cultivars were studied. Palmitic and linoleic acids were the major fatty acids in the root apices of sorghum, independent of the Al presence in nutrient solution. After Al treatment, the C18:0/C18:3 and C18:2/C18:3 ratios increased, while the C18:2/C16:0 ratio remained unchanged in the Al-sensitive cultivar but all three ratios decreased in the Al-tolerant cultivar. The double bond index and unsaturated fatty acid/saturated fatty acid ratio decreased in both cultivars but with higher intensity in the Al-sensitive cultivar. The linolenic and palmitic acids were probably the most important fatty acids associated with Al tolerance in the two sorghum cultivar studied. In the presence of Al, these two fatty acids decreased in the Al-sensitive cultivar but increased in the Al-tolerant cultivar. Plasma membranes obtained from the entire root system of the Al-sensitive cultivar showed higher concentration of malonaldehyde-thiobarbituric acid complex than the Al-tolerant cultivar, independent of the Al treatment. In root apices, in the absence of Al, there was no difference between cultivars. In the presence of Al, however, the concentration of the malonaldehyde-thiobarbituric acid complex increased about 43% but only in the Al-sensitive cultivar. So, under Al treatment, the Al-sensitive cultivar produced 36% more malonaldehyde-thiobarbituric acid complex than the Al-tolerant cultivar, which was taken as indicative of higher reactive oxygen species production and higher fatty acid peroxidation of the plasma membrane of this cultivar.
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Claims 13
Claim · model-written summary
Palmitic and linoleic acids were the major fatty acids in sorghum root apices, independent of Al in the nutrient solution.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Palmitic and linoleic acids were the major fatty acids in the root apices of sorghum”
Claim · model-written summary
After Al treatment, the C18:0/C18:3 and C18:2/C18:3 ratios increased in the Al-sensitive sorghum cultivar.
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“After Al treatment, the C18:0/C18:3 and C18:2/C18:3 ratios increased”
Claim · model-written summary
After Al treatment, the C18:2/C16:0 ratio remained unchanged in the Al-sensitive sorghum cultivar.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“while the C18:2/C16:0 ratio remained unchanged in the Al-sensitive cultivar”
Claim · model-written summary
After Al treatment, all three fatty acid ratios decreased in the Al-tolerant sorghum cultivar.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“but all three ratios decreased in the Al-tolerant cultivar”
Claim · model-written summary
The double bond index and unsaturated/saturated fatty acid ratio decreased in both cultivars after Al, with higher intensity in the Al-sensitive cultivar.
- Outcome
- double bond index and unsaturated fatty acid/saturated fatty acid ratioe0
- Direction
- decreasede0
- Qualifier
- higher intensity in the Al-sensitive cultivare0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“The double bond index and unsaturated fatty acid/saturated fatty acid ratio decreased in both cultivars but with higher intensity in the Al-sensitive cultivar”
Claim · model-written summary
Linolenic and palmitic acids were probably the most important fatty acids associated with Al tolerance in the two sorghum cultivars.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The linolenic and palmitic acids were probably the most important fatty acids associated with Al tolerance in the two sorghum cultivar studied”
Claim · model-written summary
In the presence of Al, linolenic and palmitic acids decreased in the Al-sensitive cultivar.
- Material
- Al-sensitive cultivare0
- Treatment
- presence of Ale0
- Outcome
- these two fatty acidse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“In the presence of Al, these two fatty acids decreased in the Al-sensitive cultivar”
Claim · model-written summary
In the presence of Al, linolenic and palmitic acids increased in the Al-tolerant cultivar.
Not reportedTreatmentComparatorOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“but increased in the Al-tolerant cultivar”
Claim · model-written summary
Plasma membranes from the whole root system of the Al-sensitive cultivar had higher malonaldehyde-thiobarbituric acid complex concentration than the Al-tolerant cultivar, independent of Al treatment.
- Material
- Al-sensitive cultivare0
- Outcome
- concentration of malonaldehyde-thiobarbituric acid complexe0
- Direction
- highere0
- Comparator
- Al-tolerant cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“Plasma membranes obtained from the entire root system of the Al-sensitive cultivar showed higher concentration of malonaldehyde-thiobarbituric acid complex than the Al-tolerant cultivar, independent of the Al treatment”
Claim · model-written summary
In root apices without Al, malonaldehyde-thiobarbituric acid complex did not differ between the two cultivars.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“In root apices, in the absence of Al, there was no difference between cultivars”
Claim · model-written summary
In root apices in the presence of Al, malonaldehyde-thiobarbituric acid complex increased about 43% only in the Al-sensitive cultivar.
- Material
- Al-sensitive cultivare0
- Treatment
- presence of Ale0
- Outcome
- concentration of the malonaldehyde-thiobarbituric acid complexe0
- Direction
- increasede0
- Value
- 43%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“In the presence of Al, however, the concentration of the malonaldehyde-thiobarbituric acid complex increased about 43% but only in the Al-sensitive cultivar”
Claim · model-written summary
Under Al treatment, the Al-sensitive cultivar produced 36% more malonaldehyde-thiobarbituric acid complex than the Al-tolerant cultivar.
- Material
- Al-sensitive cultivare0
- Outcome
- malonaldehyde-thiobarbituric acid complexe0
- Direction
- moree0
- Value
- 36%e0
- Comparator
- Al-tolerant cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“under Al treatment, the Al-sensitive cultivar produced 36% more malonaldehyde-thiobarbituric acid complex than the Al-tolerant cultivar”
Claim · model-written summary
The higher malonaldehyde-thiobarbituric acid complex was taken as indicative of higher reactive oxygen species production and fatty acid peroxidation of the plasma membrane in the Al-sensitive cultivar.
- Outcome
- higher fatty acid peroxidation of the plasma membranee0
- Qualifier
- higher reactive oxygen species productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SORGHUM”
e0“which was taken as indicative of higher reactive oxygen species production and higher fatty acid peroxidation of the plasma membrane of this cultivar”
The same questions in other papers
aluminium atom · molecular: metabolites · SorghumResults differ
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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.