Abstract
In this research, the effects of different concentrations of ZnCl2 (5, 10, 15, 20 µM) and PbCl2 (0.5, 2.5, 4.5, 6.5 µM) on Soybean were examined. The effects of ZnCl2 and PbCl2 on the percentage of germination and germination rate of seeds, longitudinal growth of roots and shoots of seedlings of Soybean and the activity of antioxidant enzymes were studied. The seeds were transferred to petril dishes containing filter paper after surface sterile. There were 4 repeat from each treatment and there were 6 seeds in each repeat. The results showed that Pb stress had no significant effect in the percentage of germination of seedlings, and increase in both Zn and Pb treatment caused increasing in germination rate, but, it caused significant decrease in the length of roots, shoots and seedlings. Zn stress caused significant decrease in the percentage of germination in the higher concentrations and decrease in the length of roots and shoots in all of concentrations. The activities of Catalase and Peroxidase (POX) enzymes had significant increase in the plants under treatment with Zn and Pb in all concentrations. Obtained results of this research indicated that in comparison with Zn, Soybean has more Tolerance to Pb. It seems that in short term stress of Zn and Pb, the plant decreases stress intensity with induction of fast response, but, in spite of definitions that exist for the tolerable plants of Zn and Pb, it doesnot seem to include Soybean from tolerable plants to these heavy metals.
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Claims 13
Claim · model-written summary
Lead stress had no significant effect on soybean germination percentage.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Pb stresse0
- Outcome
- percentage of germinatione0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pb stress had no significant effect in the percentage of germination of seedlings”
t0“Soybean”
Claim · model-written summary
Zinc treatment increased soybean germination rate.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zne0
- Outcome
- germination ratee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in both Zn and Pb treatment caused increasing in germination rate”
t0“Soybean”
Claim · model-written summary
Lead treatment increased soybean germination rate.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Pbe0
- Outcome
- germination ratee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in both Zn and Pb treatment caused increasing in germination rate”
t0“Soybean”
Claim · model-written summary
Increased metal treatment significantly decreased root length.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn and Pb treatmente0
- Outcome
- length of rootse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in both Zn and Pb treatment caused increasing in germination rate, but, it caused significant decrease in the length of roots, shoots and seedlings”
t0“Soybean”
Claim · model-written summary
Increased metal treatment significantly decreased shoot length.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn and Pb treatmente0
- Outcome
- shootse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in both Zn and Pb treatment caused increasing in germination rate, but, it caused significant decrease in the length of roots, shoots and seedlings”
t0“Soybean”
Claim · model-written summary
Higher zinc concentrations significantly decreased soybean germination percentage.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn stresse0
- Outcome
- percentage of germinatione0
- Direction
- decreasee0
- Qualifier
- higher concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn stress caused significant decrease in the percentage of germination in the higher concentrations”
t0“Soybean”
Claim · model-written summary
Zinc decreased soybean root length at all concentrations.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn stresse0
- Outcome
- length of rootse0
- Direction
- decreasee0
- Qualifier
- all of concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn stress caused significant decrease in the percentage of germination in the higher concentrations and decrease in the length of roots and shoots in all of concentrations”
t0“Soybean”
Claim · model-written summary
Zinc decreased soybean shoot length at all concentrations.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn stresse0
- Outcome
- shootse0
- Direction
- decreasee0
- Qualifier
- all of concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn stress caused significant decrease in the percentage of germination in the higher concentrations and decrease in the length of roots and shoots in all of concentrations”
t0“Soybean”
Claim · model-written summary
Zinc and lead increased catalase activity at all concentrations.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn and Pbe0
- Gene
- Catalasee0
- Outcome
- activities of Catalasee0
- Direction
- increasee0
- Qualifier
- all concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of Catalase and Peroxidase (POX) enzymes had significant increase in the plants under treatment with Zn and Pb in all concentrations”
t0“Soybean”
Claim · model-written summary
Zinc and lead increased peroxidase activity at all concentrations.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn and Pbe0
- Gene
- Peroxidase (POX)e0
- Outcome
- Peroxidase (POX) enzymese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of Catalase and Peroxidase (POX) enzymes had significant increase in the plants under treatment with Zn and Pb in all concentrations”
t0“Soybean”
Claim · model-written summary
Soybean was more tolerant of lead than zinc.
- Taxon
- SoybeanGlycine maxe0
- Outcome
- Tolerance to Pbe0
- Direction
- moree0
- Comparator
- Zne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in comparison with Zn, Soybean has more Tolerance to Pb”
Claim · model-written summary
Authors infer a rapid response may reduce short-term metal stress intensity.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Zn and Pbe0
- Outcome
- decreases stress intensitye0
- Qualifier
- induction of fast responsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in short term stress of Zn and Pb, the plant decreases stress intensity with induction of fast response”
t0“Soybean”
Claim · model-written summary
Authors conclude soybean does not appear tolerant to these heavy metals.
- Taxon
- SoybeanGlycine maxe0
- Outcome
- tolerable plants to these heavy metalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it doesnot seem to include Soybean from tolerable plants to these heavy metals”
The same questions in other papers
lead atom · growth · Glycine max (soybean)Results differ
11 papers in the same direction as this paper
- negative
- negative
- no effect
8 papers more in this group
See all 12 papers →heavy metal · growth · Glycine max (soybean)Results differ
23 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 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.