Abstract
“Hormesis” is considered a dose–response phenomenon mainly observed at hyperaccumulator plants under heavy metals stress. In this study, the effects of electric fields on hormesis responses in Lonicera japonica Thunb. under cadmium (Cd) treatments were investigated by assessing the plant growth and photosynthetic characteristics. Under Cd treatments without electric fields, the parameters of plant growth and photosynthetic characteristics increased significantly when exposed to 5 mg L−1 Cd, and decreased slightly when exposed to 25 mg L−1 Cd, showing an inverted U-shaped trend, which confirmed that low concentration Cd has a hormesis effect on L. japonica. Under electric fields, different voltages significantly promoted the inverted U-shaped trend of the hormesis effect on the plant, especially by 2 V cm−1 voltage. Under 2 V cm−1 voltage, the dry weight of the root and leaf biomass exposed to 5 mg L−1 Cd increased significantly by 38.38% and 42.14%, and the photosynthetic pigment contents and photosynthetic parameters were also increased significantly relative to the control, indicating that a suitable electric field provides better improvements for the hormesis responses of the plant under Cd treatments. The synergistic benefits of the 5 mg L−1 Cd and 2 V cm−1 electric field in terms of the enhanced hormesis responses of growth and photosynthetic characteristics could contribute to the promoted application of electro-phytotechnology.
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Claims 6
Claim · model-written summary
At 5 mg L−1 Cd without electric fields, growth and photosynthetic characteristics increased significantly.
- Taxon
- Lonicera japonica Thunb.
Lonicera japonicat0 - Treatment
- 5 mg L−1 Cde0
- Outcome
- plant growth and photosynthetic characteristicse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Cd treatments without electric fields, the parameters of plant growth and photosynthetic characteristics increased significantly when exposed to 5 mg L−1 Cd”
t0“Lonicera japonica Thunb.”
Claim · model-written summary
At 25 mg L−1 Cd without electric fields, growth and photosynthetic characteristics decreased slightly.
- Taxon
- Lonicera japonica Thunb.Lonicera japonicat0
- Treatment
- 25 mg L−1 Cde0
- Outcome
- plant growth and photosynthetic characteristicse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the parameters of plant growth and photosynthetic characteristics increased significantly when exposed to 5 mg L−1 Cd, and decreased slightly when exposed to 25 mg L−1 Cd”
t0“Lonicera japonica Thunb.”
Claim · model-written summary
Electric fields significantly promoted the inverted U-shaped hormesis response, especially at 2 V cm−1.
- Taxon
- Lonicera japonica Thunb.Lonicera japonicat0
- Treatment
- different voltagese0
- Outcome
- inverted U-shaped trend of the hormesis effecte0
- Direction
- promotede0
- Value
- 2 V cm−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under electric fields, different voltages significantly promoted the inverted U-shaped trend of the hormesis effect on the plant, especially by 2 V cm−1 voltage.”
t0“Lonicera japonica Thunb.”
Claim · model-written summary
At 2 V cm−1 and 5 mg L−1 Cd, root dry weight increased significantly by 38.38%.
- Taxon
- Lonicera japonica Thunb.Lonicera japonicat0
- Treatment
- 2 V cm−1 voltagee0
- Outcome
- dry weight of the roote0
- Direction
- increasede0
- Value
- 38.38%e0
- Qualifier
- 5 mg L−1 Cde0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under 2 V cm−1 voltage, the dry weight of the root and leaf biomass exposed to 5 mg L−1 Cd increased significantly by 38.38% and 42.14%, and the photosynthetic pigment contents and photosynthetic parameters were also increased significantly relative to the control”
t0“Lonicera japonica Thunb.”
Claim · model-written summary
At 2 V cm−1 and 5 mg L−1 Cd, leaf biomass increased significantly by 42.14%.
- Taxon
- Lonicera japonica Thunb.Lonicera japonicat0
- Treatment
- 2 V cm−1 voltagee0
- Outcome
- leaf biomasse0
- Direction
- increasede0
- Value
- 42.14%e0
- Qualifier
- 5 mg L−1 Cde0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under 2 V cm−1 voltage, the dry weight of the root and leaf biomass exposed to 5 mg L−1 Cd increased significantly by 38.38% and 42.14%, and the photosynthetic pigment contents and photosynthetic parameters were also increased significantly relative to the control”
t0“Lonicera japonica Thunb.”
Claim · model-written summary
At 2 V cm−1 and 5 mg L−1 Cd, photosynthetic pigment contents and parameters increased significantly relative to control.
- Taxon
- Lonicera japonica Thunb.Lonicera japonicat0
- Treatment
- 2 V cm−1 voltagee0
- Outcome
- photosynthetic pigment contents and photosynthetic parameterse0
- Direction
- increasede0
- Qualifier
- 5 mg L−1 Cde0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under 2 V cm−1 voltage, the dry weight of the root and leaf biomass exposed to 5 mg L−1 Cd increased significantly by 38.38% and 42.14%, and the photosynthetic pigment contents and photosynthetic parameters were also increased significantly relative to the control”
t0“Lonicera japonica Thunb.”
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See all 6 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.