Abstract
Biomarkers allow an integrated risk assessment of heavy metal pollution effects in living organisms. In this study, the biochemical effects of Cd, Cr, Ni, Pb and Zn pollution in agricultural soil and their accumulation in Alium cepa L. (onion) were evaluated with ALA-D enzyme response as a biomarker, along with δ-aminolevulinic acid (ALA) and total chlorophyll contents in leaves of this plant. Soil samples were randomly selected from agricultural areas in two regions, Mitrovica and Obiliqi, which are considered the most industrially polluted regions in Kosovo. Results show that Pb and Zn concentrations in soil samples from Mitrovica (1953-2576 mg kg −1) and Obiliqi regions (138-179 mg kg −1) and their bioaccumulation levels in onion were significantly higher in comparison with the control group. There was an adverse negative correlation between Pb or Zn concentration and ALA-D activity and total chlorophyll content, and a positive correlation with ALA content. This study indicates that ALA-D activity can be used as a very sensitive biomarker for evaluation of heavy metal pollution. The bioaccumulation of heavy metals from soil polluted areas poses a threat for food contamination and public health.
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Claims 4
Claim · model-written summary
Pb and Zn in agricultural soil of Mitrovica and Obiliqi were associated with significantly higher bioaccumulation in onion than in the control group.
- Taxon
- onion
Allium cepae2 - Treatment
- Pb and Zn concentrations in soil samplese1
- Outcome
- bioaccumulation levelse1
- Direction
- significantly highere1
- Comparator
- control groupe1
- Setting
- Mitrovicae1
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Pb and Zn concentrations in soil samples from Mitrovica (1953-2576 mg kg −1) and Obiliqi regions (138-179 mg kg −1) and their bioaccumulation levels in onion were significantly higher in comparison with the control group”
e2“Alium cepa L. (onion)”
Claim · model-written summary
Pb or Zn concentration was negatively correlated with ALA-D activity and total chlorophyll content in onion leaves.
- Taxon
- onionAllium cepae2
- Treatment
- Pb or Zn concentratione3
- Gene
- ALA-De3
- Outcome
- ALA-D activity and total chlorophyll contente3
- Direction
- negative correlatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“There was an adverse negative correlation between Pb or Zn concentration and ALA-D activity and total chlorophyll content”
e2“Alium cepa L. (onion)”
Claim · model-written summary
Pb or Zn concentration was positively correlated with ALA content in onion.
- Taxon
- onionAllium cepae2
- Treatment
- Pb or Zn concentratione3
- Outcome
- ALA contente4
- Direction
- positive correlatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“There was an adverse negative correlation between Pb or Zn concentration and ALA-D activity and total chlorophyll content”
e4“and a positive correlation with ALA content”
e2“Alium cepa L. (onion)”
Claim · model-written summary
ALA-D activity can be used as a very sensitive biomarker for evaluating heavy metal pollution.
- Taxon
- onionAllium cepae2
- Gene
- ALA-De5
- Outcome
- very sensitive biomarkere5
- Value
- very sensitivee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“This study indicates that ALA-D activity can be used as a very sensitive biomarker for evaluation of heavy metal pollution”
e2“Alium cepa L. (onion)”
The same questions in other papers
zinc atom · nutrient: content · Allium cepa (onion)Positive and negative results
13 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 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.