Abstract
A hydroponic experiment was conducted to study the growth characteristics of Lonicera japonica under the stress of different concentrations (0, 0.5, 2.5, 5, 10, and 25 mg L-1 ) cadmium (Cd), aimed to explore the hormesis effect of low concentrations Cd on L. japonica. At < or =5 mg L-1 of Cd, the maximum root length, plant dry biomass, and the contents of chlorophyll a, chlorophyll b, and carotenoid of L. japonica increased significantly, with the increment being 13. 6%, 11.7%, 14. 0% ,10. 8%, and 54. 5%, respectively, as compared with the control. <5 mg L-1 of Cd also had a definite positive effect on the leaf water content. At> or = 10 mg L-1 of Cd, the growth of L. japonica was inhibited significantly. When exposed to 25 mg L-1 of Cd, the shoot Cd concentration of L. japonica reached 622. 93 mg kg-1 , suggesting that L. japonica had a strong capacity of Cd-hyperaccumulation. The dose range of the hormesis effect of Cd on L. japonica was 0.5-5 mg L-1 of Cd.
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Claims 9
Claim · model-written summary
Cadmium at at most 5 mg L-1 significantly increased maximum root length by 13. 6%.
- Taxon
- L. japonica
Lonicera japonicae0 - Treatment
- < or =5 mg L-1 of Cde0
- Outcome
- maximum root lengthe0
- Direction
- increasede0
- Value
- 13. 6%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At < or =5 mg L-1 of Cd, the maximum root length, plant dry biomass, and the contents of chlorophyll a, chlorophyll b, and carotenoid of L. japonica increased significantly, with the increment being 13. 6%, 11.7%, 14. 0% ,10. 8%, and 54. 5%, respectively, as compared with the control.”
Claim · model-written summary
Cadmium at at most 5 mg L-1 significantly increased dry biomass by 11.7%.
- Taxon
- L. japonicaLonicera japonicae0
- Treatment
- < or =5 mg L-1 of Cde0
- Outcome
- plant dry biomasse0
- Direction
- increasede0
- Value
- 11.7%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At < or =5 mg L-1 of Cd, the maximum root length, plant dry biomass, and the contents of chlorophyll a, chlorophyll b, and carotenoid of L. japonica increased significantly, with the increment being 13. 6%, 11.7%, 14. 0% ,10. 8%, and 54. 5%, respectively, as compared with the control.”
Claim · model-written summary
Cadmium at at most 5 mg L-1 significantly increased chlorophyll a by 14. 0%.
- Taxon
- L. japonicaLonicera japonicae0
- Treatment
- < or =5 mg L-1 of Cde0
- Outcome
- chlorophyll ae0
- Direction
- increasede0
- Value
- 14. 0%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At < or =5 mg L-1 of Cd, the maximum root length, plant dry biomass, and the contents of chlorophyll a, chlorophyll b, and carotenoid of L. japonica increased significantly, with the increment being 13. 6%, 11.7%, 14. 0% ,10. 8%, and 54. 5%, respectively, as compared with the control.”
Claim · model-written summary
Cadmium at at most 5 mg L-1 significantly increased chlorophyll b by 10. 8%.
- Taxon
- L. japonicaLonicera japonicae0
- Treatment
- < or =5 mg L-1 of Cde0
- Outcome
- carotenoide0
- Direction
- increasede0
- Value
- 54. 5%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At < or =5 mg L-1 of Cd, the maximum root length, plant dry biomass, and the contents of chlorophyll a, chlorophyll b, and carotenoid of L. japonica increased significantly, with the increment being 13. 6%, 11.7%, 14. 0% ,10. 8%, and 54. 5%, respectively, as compared with the control.”
Claim · model-written summary
Cadmium at at most 5 mg L-1 significantly increased carotenoid by 54. 5%.
- Taxon
- L. japonicaLonicera japonicae0
- Treatment
- < or =5 mg L-1 of Cde0
- Outcome
- carotenoide0
- Direction
- increasede0
- Value
- 54. 5%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At < or =5 mg L-1 of Cd, the maximum root length, plant dry biomass, and the contents of chlorophyll a, chlorophyll b, and carotenoid of L. japonica increased significantly, with the increment being 13. 6%, 11.7%, 14. 0% ,10. 8%, and 54. 5%, respectively, as compared with the control.”
Claim · model-written summary
Cadmium below 5 mg L-1 positively affected leaf water content.
- Taxon
- Lonicera japonicaLonicera japonicat0
- Treatment
- <5 mg L-1 of Cde0
- Outcome
- leaf water contente0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“<5 mg L-1 of Cd also had a definite positive effect on the leaf water content.”
t0“Lonicera japonica”
Claim · model-written summary
Cadmium at 10 mg L-1 or higher significantly inhibited growth.
- Taxon
- L. japonicaLonicera japonicae0
- Treatment
- 10 mg L-1 of Cde0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At> or = 10 mg L-1 of Cd, the growth of L. japonica was inhibited significantly.”
Claim · model-written summary
At 25 mg L-1 cadmium, shoot cadmium concentration reached 622. 93 mg kg-1.
- Taxon
- L. japonicaLonicera japonicae0
- Treatment
- 25 mg L-1 of Cde0
- Outcome
- shoot Cd concentratione0
- Value
- 622. 93 mg kg-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When exposed to 25 mg L-1 of Cd, the shoot Cd concentration of L. japonica reached 622. 93 mg kg-1”
Claim · model-written summary
The authors identified 0.5-5 mg L-1 cadmium as the hormetic dose range.
- Taxon
- L. japonicaLonicera japonicae0
- Outcome
- dose range of the hormesis effecte0
- Value
- 0.5-5 mg L-1 of Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dose range of the hormesis effect of Cd on L. japonica was 0.5-5 mg L-1 of Cd.”
The same questions in other papers
cadmium atom · growth · Lonicera japonica (Japanese honeysuckle)Results differ
2 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- negative
4 papers more in this group
See all 8 papers →cadmium atom · physiology: water · Lonicera japonica (Japanese honeysuckle)Positive and negative results
1 in the opposite direction
- negative
cadmium atom · physiology: pigments · Lonicera japonica (Japanese honeysuckle)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.