Abstract
A sand cultivation experiment was conducted to study the effects of Zn2 +with different concentrations( 10- 6mol·L- 1,10- 5mol·L- 1,10- 4mol·L- 1,and 10- 3mol·L- 1) and PEG-6000( 5%、10%、15%、20%、30%)on seed germination,seedling growth,osmotica accumulation,and active oxygen metabolism of Codonopsis pilosula,an authentic Chinese herbal medicine in Gansu province. The results showed that the low concentrations of Zn2 +and PEG could significantly enhance seed germination and seedling growth. With the increase of Zn2 +and PEG concentrations,the germination rate became decreased significantly,and seedling growth was inhibited. The lowest permeability threshold was- 0. 94 MPa. O2·production rate and H2O2 contents in leaf were increased dramatically. In addition,activities of superoxide dismutase,peroxidase,catalase,and ascorbate peroxidase went down after an initial increase. Contents of glutathione and ascorbic acid in leaf were decreased markedly. Levels of proline,soluble sugar and malonaldehyde contents in young seedling leaf went up significantly with the increase of Zn2 +and PEG concentrations. It was found that10- 6and 10- 5mol ·L- 1zinc salt could improve the drought tolerance capability of Codonopsis pilosula to moderate stress. 10- 3mol·L- 1zinc salt and drought stress caused the maximal damages.
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Claims 13
Claim · model-written summary
Low Zn2 + concentrations enhanced Codonopsis seed germination and seedling growth.
- Taxon
- Codonopsis pilosula
Codonopsis pilosulat0 - Treatment
- Zn2 +e0
- Outcome
- seed germination and seedling growthe0
- Direction
- enhancee0
- Qualifier
- low concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the low concentrations of Zn2 +and PEG could significantly enhance seed germination and seedling growth.”
t0“Codonopsis pilosula”
Claim · model-written summary
Low PEG concentrations enhanced Codonopsis seed germination and seedling growth.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Treatment
- PEGe0
- Outcome
- seed germination and seedling growthe0
- Direction
- enhancee0
- Qualifier
- low concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the low concentrations of Zn2 +and PEG could significantly enhance seed germination and seedling growth.”
t0“Codonopsis pilosula”
Claim · model-written summary
Increasing Zn2 + decreased germination rate in Codonopsis.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Treatment
- Zn2 +e0
- Outcome
- germination ratee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Zn2 +and PEG concentrations,the germination rate became decreased significantly,and seedling growth was inhibited.”
t0“Codonopsis pilosula”
Claim · model-written summary
Increasing Zn2 + decreased seedling growth in Codonopsis.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Treatment
- Zn2 +e0
- Outcome
- seedling growthe0
- Direction
- inhibitede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Zn2 +and PEG concentrations,the germination rate became decreased significantly,and seedling growth was inhibited.”
t0“Codonopsis pilosula”
Claim · model-written summary
Increasing PEG decreased germination rate in Codonopsis.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Treatment
- PEGe0
- Outcome
- germination ratee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Zn2 +and PEG concentrations,the germination rate became decreased significantly,and seedling growth was inhibited.”
t0“Codonopsis pilosula”
Claim · model-written summary
Increasing PEG decreased seedling growth in Codonopsis.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Treatment
- PEGe0
- Outcome
- seedling growthe0
- Direction
- inhibitede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Zn2 +and PEG concentrations,the germination rate became decreased significantly,and seedling growth was inhibited.”
t0“Codonopsis pilosula”
Claim · model-written summary
The lowest permeability threshold was -0.94 MPa.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Outcome
- lowest permeability thresholde0
- Value
- 0. 94 MPae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest permeability threshold was- 0. 94 MPa.”
t0“Codonopsis pilosula”
Claim · model-written summary
Leaf O2 production rate and H2O2 contents increased dramatically.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Organ / stage
- leafe0
- Outcome
- O2·production rate and H2O2 contentse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“O2·production rate and H2O2 contents in leaf were increased dramatically.”
t0“Codonopsis pilosula”
Claim · model-written summary
Antioxidant enzyme activities initially increased and then fell.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Outcome
- activities of superoxide dismutase,peroxidase,catalase,and ascorbate peroxidasee0
- Direction
- went down after an initial increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition,activities of superoxide dismutase,peroxidase,catalase,and ascorbate peroxidase went down after an initial increase.”
t0“Codonopsis pilosula”
Claim · model-written summary
Leaf glutathione and ascorbic acid contents decreased markedly.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Organ / stage
- leafe0
- Outcome
- Contents of glutathione and ascorbic acide0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contents of glutathione and ascorbic acid in leaf were decreased markedly.”
t0“Codonopsis pilosula”
Claim · model-written summary
Proline, soluble sugar and malonaldehyde levels increased with Zn and PEG concentrations.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Organ / stage
- young seedling leafe0
- Treatment
- Zn2 +and PEGe0
- Outcome
- Levels of proline,soluble sugar and malonaldehyde contentse0
- Direction
- went upe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Levels of proline,soluble sugar and malonaldehyde contents in young seedling leaf went up significantly with the increase of Zn2 +and PEG concentrations.”
t0“Codonopsis pilosula”
Claim · model-written summary
Low zinc salt concentrations improved drought tolerance to moderate stress.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulae0
- Treatment
- 10- 6and 10- 5mol ·L- 1zinc salte0
- Outcome
- drought tolerance capabilitye0
- Direction
- improvee0
- Qualifier
- moderate stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was found that10- 6and 10- 5mol ·L- 1zinc salt could improve the drought tolerance capability of Codonopsis pilosula to moderate stress.”
Claim · model-written summary
High zinc salt with drought stress caused maximal damage.
- Taxon
- Codonopsis pilosulaCodonopsis pilosulat0
- Treatment
- 10- 3mol·L- 1zinc salt and drought stresse0
- Outcome
- damagese0
- Direction
- maximale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“10- 3mol·L- 1zinc salt and drought stress caused the maximal damages.”
t0“Codonopsis pilosula”
The same questions in other papers
drought · growth · Codonopsis pilosulaPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.