Abstract
[Objective] The aim was to study the effect of mercury stress on seed germination and seedlings growth.[Method] Zhengzhou 9023 was used as the experimental material and cultured in water.After the seeds were soaked in different concentrations of Hg2+(0.025,0.050,0.100,0.200,0.300,0.400 and 0.500 mmol/L),the germination rate and seedling height,root length,seedling's fresh weight,and the activities of peroxidase(POD) and amylase in leaf,root and germinating embryo were measured.[Result] Low concentrations of Hg2+(≤0.100 mmol/L) had little effect on seed germination,seedling height,root length and fresh weight;high concentrations of Hg2+(0.10 mmol/L) could significantly inhibit seed germination and seedling growth.Low concentration of Hg2+(≥ 0.025 mmol/L) could significantly increase POD activity and inhibit the amylase activity,and the effects increased with the increasing of Hg2+concentrations.[Conclusion] Hg2+ stress could change the activities of POD and amylase in leaf,root and germinating embryo,thus influence the energy and substrate supply which was required for normal metabolism of lipid oxidation,and inhibit seedling growth ultimately.
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Claims 5
Claim · model-written summary
Low Hg2+ concentrations had little effect on wheat germination and seedling growth traits.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- Hg2+(≤0.100 mmol/L)e0
- Outcome
- seed germination,seedling height,root length and fresh weighte0
- Direction
- had little effecte0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low concentrations of Hg2+(≤0.100 mmol/L) had little effect on seed germination,seedling height,root length and fresh weight”
t0“Wheat”
Claim · model-written summary
High Hg2+ concentrations significantly inhibited wheat seed germination and seedling growth.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Hg2+(0.10 mmol/L)e0
- Outcome
- seed germination and seedling growthe0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high concentrations of Hg2+(0.10 mmol/L) could significantly inhibit seed germination and seedling growth”
t0“Wheat”
Claim · model-written summary
Hg2+ significantly increased wheat POD activity, with effects increasing at higher concentrations.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Hg2+(≥ 0.025 mmol/L)e0
- Outcome
- POD activitye0
- Direction
- increasee0
- Qualifier
- effects increased with the increasing of Hg2+concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low concentration of Hg2+(≥ 0.025 mmol/L) could significantly increase POD activity and inhibit the amylase activity,and the effects increased with the increasing of Hg2+concentrations”
t0“Wheat”
Claim · model-written summary
Hg2+ significantly inhibited wheat amylase activity, with effects increasing at higher concentrations.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Hg2+(≥ 0.025 mmol/L)e0
- Outcome
- amylase activitye0
- Direction
- inhibite0
- Qualifier
- effects increased with the increasing of Hg2+concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low concentration of Hg2+(≥ 0.025 mmol/L) could significantly increase POD activity and inhibit the amylase activity,and the effects increased with the increasing of Hg2+concentrations”
t0“Wheat”
Claim · model-written summary
The authors infer that Hg2+ changes enzyme activities and energy and substrate supply, ultimately inhibiting seedling growth.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Hg2+ stresse0
- Outcome
- seedling growthe0
- Direction
- inhibite0
- Qualifier
- energy and substrate supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hg2+ stress could change the activities of POD and amylase in leaf,root and germinating embryo,thus influence the energy and substrate supply which was required for normal metabolism of lipid oxidation,and inhibit seedling growth ultimately”
t0“Wheat”
The same questions in other papers
mercury(2+) · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results
1 in the opposite direction
- positive
mercury(2+) · growth · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- no effect
- no effect
- no effect
mercury(2+) · physiology: enzyme activity · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.