Abstract
Three wild polygonaceae plants,Polygonum lapathifolium,Polygonum perfoliatum and Polygonum hydropiper,were used to study the physiological responses under five aluminum(AlCl3) concentrations(0,25,50,100,400 μmol/L) with solution culture method.It was found that relative root elongation was decreased with the increase of AlCl3 concentrations in polygonaceae plants,but the magnitude of decrease was higher in Polygonum perfoliatum than that in Polygonum lapathifolium and Polygonum hydropiper,suggesting that Polygonum lapathifolium and Polygonum hydropiper were much more tolerant to Al than Polygonum perfoliatum was.Al contents and oxalate secretion in roots of three polygonaceae plants were increased with increase of AlCl3 concentraions and oxalate secretion showed that a saturating phenomenon at approximately 50 μmol/L AlCl3 in Polygonum hydropiper and Polygonum perfoliatum,while Al contents were significantly lower and the amount of oxalate secretion significantly higher in Polygonum lapathifolium and Polygonum hydropiper than that in Polygonum perfoliatum.When compared with the control,high AlCl3 treatment(400 μmol/L) significantly decreased root activity,leaf activities of peroxides(POD) and catalase(CAT),increased malondialdehyde(MDA) content of three polygonaceae plants,especially in Polygonum perfoliatum.In the low concentration of AlCl3 treatments(25-50 μmol/L),root activity in Polygonum lapathifolium and Polygonum hydropiper showed an increasing trend,and leaf proline content,activities of POD and CAT significantly increased,MDA content significantly decreased compared with the control.These findings suggested that Polygonum lapathifolium and Polygonum hydropiper could enhance the tolerance to Al stress by increasing Al-induced oxalate secretion and maintaining higher proline content,higher activities of POD and CAT,lower MDA content under the low AlCl3 concentration.
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Claims 14
Claim · model-written summary
Relative root elongation of Polygonaceae plants decreased as AlCl3 concentration increased.
- Taxon
- polygonaceae plantsPolygonaceaee1
- Treatment
- AlCl3 concentrationse1
- Outcome
- relative root elongatione1
- Direction
- decreasede1
Not reportedComparator
Verbatim
e1“relative root elongation was decreased with the increase of AlCl3 concentrations in polygonaceae plants”
Claim · model-written summary
The decrease in root elongation was larger in Polygonum perfoliatum than in Polygonum lapathifolium and Polygonum hydropiper.
- Taxon
- Polygonum perfoliatum
Persicaria perfoliatae2 - Outcome
- magnitude of decreasee2
- Direction
- highere2
- Comparator
- Polygonum lapathifolium and Polygonum hydropipere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the magnitude of decrease was higher in Polygonum perfoliatum than that in Polygonum lapathifolium and Polygonum hydropiper”
Claim · model-written summary
Polygonum lapathifolium was much more tolerant to Al than Polygonum perfoliatum.
- Taxon
- Polygonum lapathifolium
Persicaria lapathifoliae3 - Outcome
- tolerant to Ale3
- Direction
- much more tolerante3
- Comparator
- Polygonum perfoliatume3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“suggesting that Polygonum lapathifolium and Polygonum hydropiper were much more tolerant to Al than Polygonum perfoliatum was”
Claim · model-written summary
Polygonum hydropiper was much more tolerant to Al than Polygonum perfoliatum.
- Taxon
- Polygonum hydropiper
Persicaria hydropipere3 - Outcome
- tolerant to Ale3
- Direction
- much more tolerante3
- Comparator
- Polygonum perfoliatume3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“suggesting that Polygonum lapathifolium and Polygonum hydropiper were much more tolerant to Al than Polygonum perfoliatum was”
Claim · model-written summary
Root Al contents and oxalate secretion of three Polygonaceae plants increased with increasing AlCl3.
- Taxon
- three polygonaceae plantse4
- Treatment
- AlCl3e4
- Outcome
- Al contents and oxalate secretion in rootse4
- Direction
- increasede4
Not reportedComparator
Verbatim
e4“Al contents and oxalate secretion in roots of three polygonaceae plants were increased with increase of AlCl3 concentraions”
Claim · model-written summary
Oxalate secretion reached a saturating level at approximately 50 μmol/L AlCl3 in Polygonum hydropiper and Polygonum perfoliatum.
- Taxon
- Polygonum hydropiper and Polygonum perfoliatumPersicaria hydropiperPersicaria perfoliatae5
- Outcome
- oxalate secretione5
- Direction
- saturating phenomenone5
- Value
- approximately 50 μmol/Le5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“oxalate secretion showed that a saturating phenomenon at approximately 50 μmol/L AlCl3 in Polygonum hydropiper and Polygonum perfoliatum”
Claim · model-written summary
Root Al contents were significantly lower in Polygonum lapathifolium and Polygonum hydropiper than in Polygonum perfoliatum.
- Taxon
- Polygonum lapathifolium and Polygonum hydropiperPersicaria hydropiperPersicaria lapathifoliae6
- Outcome
- Al contentse6
- Direction
- significantly lowere6
- Comparator
- Polygonum perfoliatume6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Al contents were significantly lower and the amount of oxalate secretion significantly higher in Polygonum lapathifolium and Polygonum hydropiper than that in Polygonum perfoliatum”
Claim · model-written summary
The amount of oxalate secretion was significantly higher in Polygonum lapathifolium and Polygonum hydropiper than in Polygonum perfoliatum.
- Taxon
- Polygonum lapathifolium and Polygonum hydropiperPersicaria hydropiperPersicaria lapathifoliae6
- Outcome
- the amount of oxalate secretione6
- Direction
- significantly highere6
- Comparator
- Polygonum perfoliatume6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Al contents were significantly lower and the amount of oxalate secretion significantly higher in Polygonum lapathifolium and Polygonum hydropiper than that in Polygonum perfoliatum”
Claim · model-written summary
At high AlCl3 (400 μmol/L) root activity and leaf POD and CAT activities of three Polygonaceae plants were significantly decreased compared with the control.
Verbatim
e7“When compared with the control, high AlCl3 treatment(400 μmol/L) significantly decreased root activity,leaf activities of peroxides(POD) and catalase(CAT)”
e0“increased malondialdehyde(MDA) content of three polygonaceae plants,especially in Polygonum perfoliatum”
Claim · model-written summary
At high AlCl3 (400 μmol/L) malondialdehyde (MDA) content of three Polygonaceae plants increased, especially in Polygonum perfoliatum.
Verbatim
e7“When compared with the control, high AlCl3 treatment(400 μmol/L) significantly decreased root activity,leaf activities of peroxides(POD) and catalase(CAT)”
e0“increased malondialdehyde(MDA) content of three polygonaceae plants,especially in Polygonum perfoliatum”
Claim · model-written summary
At low AlCl3 (25-50 μmol/L) root activity in Polygonum lapathifolium and Polygonum hydropiper showed an increasing trend.
- Taxon
- Polygonum lapathifolium and Polygonum hydropiperPersicaria hydropiperPersicaria lapathifoliae1
- Treatment
- AlCl3 treatments(25-50 μmol/L)e1
- Outcome
- root activitye1
- Direction
- increasing trende1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In the low concentration of AlCl3 treatments(25-50 μmol/L),root activity in Polygonum lapathifolium and Polygonum hydropiper showed an increasing trend”
Claim · model-written summary
At low AlCl3 (25-50 μmol/L) leaf proline content and POD and CAT activities of Polygonum lapathifolium and Polygonum hydropiper increased significantly compared with the control.
- Taxon
- Polygonum lapathifolium and Polygonum hydropiperPersicaria hydropiperPersicaria lapathifoliae1
- Treatment
- AlCl3 treatments(25-50 μmol/L)e1
- Outcome
- leaf proline content,activities of POD and CATe2
- Direction
- significantly increasede2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In the low concentration of AlCl3 treatments(25-50 μmol/L),root activity in Polygonum lapathifolium and Polygonum hydropiper showed an increasing trend”
e2“leaf proline content,activities of POD and CAT significantly increased,MDA content significantly decreased compared with the control”
Claim · model-written summary
At low AlCl3 (25-50 μmol/L) MDA content of Polygonum lapathifolium and Polygonum hydropiper decreased significantly compared with the control.
- Taxon
- Polygonum lapathifolium and Polygonum hydropiperPersicaria hydropiperPersicaria lapathifoliae1
- Treatment
- AlCl3 treatments(25-50 μmol/L)e1
- Outcome
- MDA contente2
- Direction
- significantly decreasede2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In the low concentration of AlCl3 treatments(25-50 μmol/L),root activity in Polygonum lapathifolium and Polygonum hydropiper showed an increasing trend”
e2“leaf proline content,activities of POD and CAT significantly increased,MDA content significantly decreased compared with the control”
Claim · model-written summary
Polygonum lapathifolium and Polygonum hydropiper may enhance Al stress tolerance by increasing Al-induced oxalate secretion and maintaining higher proline, POD and CAT activities and lower MDA content at low AlCl3.
- Taxon
- Polygonum lapathifolium and Polygonum hydropiperPersicaria hydropiperPersicaria lapathifoliae1
- Treatment
- low AlCl3 concentratione1
- Outcome
- tolerance to Al stresse1
- Qualifier
- increasing Al-induced oxalate secretion and maintaining higher proline contente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“These findings suggested that Polygonum lapathifolium and Polygonum hydropiper could enhance the tolerance to Al stress by increasing Al-induced oxalate secretion and maintaining higher proline content,higher activities of POD and CAT,lower MDA content under the low AlCl3 concentration”