Abstract
In this study wheat seedlings cv Ningchun 4 is used to evaluate the changes of chlorophyll and osmotic regulator contents as well as the activities of proline metabolic enzymes in response to different CuCl2 and FeCl3 concentrations.The results show that chlorophyll a,chlorophyll b and total chlorophyll contents significantly increas in wheat treated with 100 μmol·L-1 copper,while these three parameters due to 300 μmol·L-1 and 500 μmol·L-1 Cu are obviously lower than those in untreated seedlings.By contrast,the 100 μmol·L-1 concentration of iron do not affect the amount of chlorophyll a,total chlorophyll,soluble sugar and soluble protein,but these parameters significantly elevate in the leaves of wheat under 300 μmol·L-1 and 500 μmol·L-1 Fe3+ treatments.In addition,Cu2+ and Fe3+ treatments induce an increase in proline content in wheat seedlings,but the enhanced degree under FeCl3 treatment is markedly higher than that in response to CuCl2.Further studies show that both copper and iron treatments result in the decrease of PDH activity,but a notable elevation in the activity of OAT is caused by 500 μmol·L-1 Cu2+ and different Fe3+ concentrations.In conclusion,these results suggest that 300 μmol·L-1 and 500 μmol·L-1 CuCl2 treatments lead to damage to chlorophyll in wheat seedlings,while 100 μmol·L-1 CuCl2,300 μmol·L-1 and 500 μmol·L-1 FeCl3 treatments have benefit to the synthesis of chlorophyll;both copper and iron induce the enhancements of soluble sugar,soluble protein and proline content,resulting in strong osmotic adjustment ability,which may improve wheat tolerance to Cu2+ and Fe3+ treatments.Additionally,proline accumulation may be associated with decreased PDH activity and elevated OAT activity in wheat seedlings under copper and iron stresses.
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Claims 15
Claim · model-written summary
Copper treatment changed chlorophyll a, chlorophyll b and total chlorophyll in wheat seedlings.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 100 μmol·L-1 coppere0
- Outcome
- chlorophyll a,chlorophyll b and total chlorophyll contentse0
- Direction
- significantly increase0
- Comparator
- untreated seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that chlorophyll a,chlorophyll b and total chlorophyll contents significantly increas in wheat treated with 100 μmol·L-1 copper,while these three parameters due to 300 μmol·L-1 and 500 μmol·L-1 Cu are obviously lower than those in untreated seedlings.”
Claim · model-written summary
Copper treatment changed chlorophyll a, chlorophyll b and total chlorophyll in wheat seedlings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 300 μmol·L-1e0
- Outcome
- chlorophyll a,chlorophyll b and total chlorophyll contentse0
- Direction
- lowere0
- Comparator
- untreated seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that chlorophyll a,chlorophyll b and total chlorophyll contents significantly increas in wheat treated with 100 μmol·L-1 copper,while these three parameters due to 300 μmol·L-1 and 500 μmol·L-1 Cu are obviously lower than those in untreated seedlings.”
Claim · model-written summary
Copper treatment changed chlorophyll a, chlorophyll b and total chlorophyll in wheat seedlings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 500 μmol·L-1e0
- Outcome
- chlorophyll a,chlorophyll b and total chlorophyll contentse0
- Direction
- lowere0
- Comparator
- untreated seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that chlorophyll a,chlorophyll b and total chlorophyll contents significantly increas in wheat treated with 100 μmol·L-1 copper,while these three parameters due to 300 μmol·L-1 and 500 μmol·L-1 Cu are obviously lower than those in untreated seedlings.”
Claim · model-written summary
Iron treatment changed chlorophyll and osmotic regulator contents in wheat leaves.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- leavese0
- Treatment
- 100 μmol·L-1 concentration of irone0
- Outcome
- chlorophyll a,total chlorophyll,soluble sugar and soluble proteine0
- Direction
- do not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By contrast,the 100 μmol·L-1 concentration of iron do not affect the amount of chlorophyll a,total chlorophyll,soluble sugar and soluble protein,but these parameters significantly elevate in the leaves of wheat under 300 μmol·L-1 and 500 μmol·L-1 Fe3+ treatments.”
Claim · model-written summary
Iron treatment changed chlorophyll and osmotic regulator contents in wheat leaves.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- leavese0
- Treatment
- 300 μmol·L-1 and 500 μmol·L-1 Fe3+ treatmentse0
- Outcome
- chlorophyll a,total chlorophyll,soluble sugar and soluble proteine0
- Direction
- significantly elevatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By contrast,the 100 μmol·L-1 concentration of iron do not affect the amount of chlorophyll a,total chlorophyll,soluble sugar and soluble protein,but these parameters significantly elevate in the leaves of wheat under 300 μmol·L-1 and 500 μmol·L-1 Fe3+ treatments.”
Claim · model-written summary
Iron treatment changed chlorophyll and osmotic regulator contents in wheat leaves.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- leavese0
- Treatment
- 300 μmol·L-1 and 500 μmol·L-1 Fe3+ treatmentse0
- Outcome
- chlorophyll a,total chlorophyll,soluble sugar and soluble proteine0
- Direction
- significantly elevatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By contrast,the 100 μmol·L-1 concentration of iron do not affect the amount of chlorophyll a,total chlorophyll,soluble sugar and soluble protein,but these parameters significantly elevate in the leaves of wheat under 300 μmol·L-1 and 500 μmol·L-1 Fe3+ treatments.”
Claim · model-written summary
Cu2+ increased proline content in wheat seedlings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Cu2+ and Fe3+ treatmentse0
- Outcome
- proline contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition,Cu2+ and Fe3+ treatments induce an increase in proline content in wheat seedlings,but the enhanced degree under FeCl3 treatment is markedly higher than that in response to CuCl2.”
Claim · model-written summary
Fe3+ increased proline content in wheat seedlings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Cu2+ and Fe3+ treatmentse0
- Outcome
- proline contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition,Cu2+ and Fe3+ treatments induce an increase in proline content in wheat seedlings,but the enhanced degree under FeCl3 treatment is markedly higher than that in response to CuCl2.”
Claim · model-written summary
FeCl3 produced a greater proline increase than CuCl2.
- Taxon
- wheatTriticum aestivume0
- Treatment
- FeCl3 treatmente0
- Outcome
- proline contente0
- Direction
- markedly highere0
- Comparator
- CuCl2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition,Cu2+ and Fe3+ treatments induce an increase in proline content in wheat seedlings,but the enhanced degree under FeCl3 treatment is markedly higher than that in response to CuCl2.”
Claim · model-written summary
copper decreased PDH activity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- both copper and iron treatmentse0
- Gene
- PDHe0
- Outcome
- PDH activitye0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Further studies show that both copper and iron treatments result in the decrease of PDH activity,but a notable elevation in the activity of OAT is caused by 500 μmol·L-1 Cu2+ and different Fe3+ concentrations.”
t0“wheat seedlings”
Claim · model-written summary
iron decreased PDH activity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- both copper and iron treatmentse0
- Gene
- PDHe0
- Outcome
- PDH activitye0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Further studies show that both copper and iron treatments result in the decrease of PDH activity,but a notable elevation in the activity of OAT is caused by 500 μmol·L-1 Cu2+ and different Fe3+ concentrations.”
t0“wheat seedlings”
Claim · model-written summary
500 μmol·L-1 Cu2+ elevated OAT activity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 500 μmol·L-1 Cu2+e0
- Gene
- OATe0
- Outcome
- activity of OATe0
- Direction
- elevatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Further studies show that both copper and iron treatments result in the decrease of PDH activity,but a notable elevation in the activity of OAT is caused by 500 μmol·L-1 Cu2+ and different Fe3+ concentrations.”
t0“wheat seedlings”
Claim · model-written summary
different Fe3+ concentrations elevated OAT activity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- different Fe3+ concentrationse0
- Gene
- OATe0
- Outcome
- activity of OATe0
- Direction
- elevatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Further studies show that both copper and iron treatments result in the decrease of PDH activity,but a notable elevation in the activity of OAT is caused by 500 μmol·L-1 Cu2+ and different Fe3+ concentrations.”
t0“wheat seedlings”
Claim · model-written summary
The authors suggest increased osmotic regulators may improve wheat tolerance to copper and iron treatments.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Cu2+ and Fe3+ treatmentse0
- Outcome
- wheat tolerancee0
- Qualifier
- strong osmotic adjustment abilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In conclusion,these results suggest that 300 μmol·L-1 and 500 μmol·L-1 CuCl2 treatments lead to damage to chlorophyll in wheat seedlings,while 100 μmol·L-1 CuCl2,300 μmol·L-1 and 500 μmol·L-1 FeCl3 treatments have benefit to the synthesis of chlorophyll;both copper and iron induce the enhancements of soluble sugar,soluble protein and proline content,resulting in strong osmotic adjustment ability,which may improve wheat tolerance to Cu2+ and Fe3+ treatments.”
Claim · model-written summary
Proline accumulation may be associated with decreased PDH activity and elevated OAT activity.
- Taxon
- wheatTriticum aestivume0
- Gene
- PDH activity and elevated OAT activitye0
- Outcome
- proline accumulatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally,proline accumulation may be associated with decreased PDH activity and elevated OAT activity in wheat seedlings under copper and iron stresses.”
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See all 24 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.