Abstract
Cadmium (Cd) uptake effects on sucrose content, invertase activities, and plasma membrane functionality were investigated in Rangpur lime roots ( CITRUS LIMONIA L. Osbeck). Cadmium accumulation was significant in roots but not in shoots and leaves. Cadmium produced significant reduction in roots DW and increment in WC. Leaves and shoots did not show significant differences on both parameters. Sucrose content was higher in control roots than in Cd-exposed ones. Apoplastic sucrose content was much higher in Cd-exposed roots than in control ones. Cd-exposed roots showed a significant decrease in both cell wall-bound and cytoplasmic (neutral) invertase activities; while the vacuolar isoform did not show any change. Alterations in lipid composition and membrane fluidity of Cd-exposed roots were also observed. In Cd-exposed roots phospholipid and glycolipid contents decreased about 50 %, while sterols content was reduced about 22 %. Proton extrusion was inhibited by Cd. Lipid peroxidation and proton extrusion inhibition were also detected by histochemical analysis. This work's findings demonstrate that Cd affects sucrose partitioning and invertase activities in apoplastic and symplastic regions in Rangpur lime roots as well as the plasma membrane functionality and H (+)-ATPase activity.
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Claims 13
Claim · model-written summary
Cadmium accumulation was significant in Rangpur lime roots but not in shoots and leaves.
- Taxon
- Rangpur lime
Citrus limoniat0 - Organ / stage
- rootse1
- Outcome
- Cadmium accumulatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Cadmium accumulation was significant in roots but not in shoots and leaves”
Claim · model-written summary
Cadmium significantly reduced root dry weight in Rangpur lime.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cadmiume1
- Outcome
- roots DWe1
- Direction
- reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Cadmium produced significant reduction in roots DW and increment in WC”
Claim · model-written summary
Cadmium significantly increased WC in Rangpur lime roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cadmiume1
- Outcome
- WCe1
- Direction
- incremente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Cadmium produced significant reduction in roots DW and increment in WC”
Claim · model-written summary
Cadmium did not cause significant differences in leaves and shoots for either parameter.
- Taxon
- Rangpur limeCitrus limoniat0
- Organ / stage
- Leaves and shootse1
- Treatment
- Cadmium (Cd)e0
- Outcome
- both parameterse1
- Direction
- did not show significant differencese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e0“Cadmium (Cd) uptake effects”
e1“Leaves and shoots did not show significant differences on both parameters”
Claim · model-written summary
Sucrose content was higher in control roots than in Cd-exposed roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- Sucrose contente1
- Direction
- highere1
- Comparator
- control rootse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Sucrose content was higher in control roots than in Cd-exposed ones”
Claim · model-written summary
Apoplastic sucrose content was much higher in Cd-exposed roots than in control roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- Apoplastic sucrose contente1
- Direction
- much highere1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Apoplastic sucrose content was much higher in Cd-exposed roots than in control ones”
Claim · model-written summary
Cd-exposed roots showed a significant decrease in cell wall-bound and cytoplasmic (neutral) invertase activities.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- cell wall-bound and cytoplasmic (neutral) invertase activitiese1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Cd-exposed roots showed a significant decrease in both cell wall-bound and cytoplasmic (neutral) invertase activities”
Claim · model-written summary
The vacuolar invertase isoform did not change in Cd-exposed roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- the vacuolar isoforme1
- Direction
- did not show any changee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Cd-exposed roots showed a significant decrease in both cell wall-bound and cytoplasmic (neutral) invertase activities; while the vacuolar isoform did not show any change”
Claim · model-written summary
Alterations in lipid composition and membrane fluidity were observed in Cd-exposed roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- lipid composition and membrane fluiditye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Alterations in lipid composition and membrane fluidity of Cd-exposed roots were also observed”
Claim · model-written summary
Phospholipid and glycolipid contents decreased by about 50% in Cd-exposed roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- phospholipid and glycolipid contentse1
- Direction
- decreasede1
- Value
- about 50 %e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“In Cd-exposed roots phospholipid and glycolipid contents decreased about 50 %, while sterols content was reduced about 22 %”
Claim · model-written summary
Sterols content was reduced by about 22% in Cd-exposed roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cd-exposede1
- Outcome
- sterols contente1
- Direction
- reducede1
- Value
- about 22 %e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“In Cd-exposed roots phospholipid and glycolipid contents decreased about 50 %, while sterols content was reduced about 22 %”
Claim · model-written summary
Proton extrusion was inhibited by Cd in Rangpur lime roots.
- Taxon
- Rangpur limeCitrus limoniat0
- Treatment
- Cde1
- Outcome
- Proton extrusione1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Proton extrusion was inhibited by Cd”
Claim · model-written summary
Lipid peroxidation and proton extrusion inhibition were detected by histochemical analysis.
- Taxon
- Rangpur limeCitrus limoniat0
- Outcome
- Lipid peroxidation and proton extrusion inhibitione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rangpur Lime”
e1“Lipid peroxidation and proton extrusion inhibition were also detected by histochemical analysis”