Abstract
Effects of exogenous abscisic acid(ABA) on the growth and some physio-biochemical signs in wheat(Triticum aestivum L.) seedlings under cadmium stress(100 mg/L) were studied with hydroponics.The results showed that:(1)The malondialdehyde(MDA) content in wheat seedlings was significantly increased(P0.05),and the growth of wheat seedlings was also obviously inhibited by Cd2+ stress.(2)Exogenous ABA with the concentration of 5.0 μmol/L playing a noticeable role increased root activity and proline content,enhanced activities of SOD,POD and CAT,and decreased MDA content.(3)Exogenous 1.0-5.0 μmol/L ABA eased the negative effects of Cd2+ on the growth of wheat seedlings,and 5.0 μmol/L ABA worked best with shoot height,root length and total biomass of seedlings in 5.0 μmol/L ABA and Cd2+ stress had increased 6.73%,149% and 10.52%,respectively,compared with those under single Cd2+ stress.However,10.0 μmol/L ABA exacerbated the growth of wheat seedlings.On the whole,preference concentration of exogenous ABA could ease the inhibitory effects of Cd2+ stress on the growth of wheat seedlings and boost the tolerance of wheat seedlings to Cd2+ stress by increasing SOD,POD and CAT activities and proline content.Furthermore,the most suitable concentration of ABA was defined to be 5.0 μmol/L.
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Claims 11
Claim · model-written summary
Cadmium increased seedling MDA content significantly.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Cd2+ stresse0
- Outcome
- malondialdehyde(MDA) contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The malondialdehyde(MDA) content in wheat seedlings was significantly increased(P0.05),and the growth of wheat seedlings was also obviously inhibited by Cd2+ stress.”
Claim · model-written summary
Cadmium inhibited seedling growth.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Cd2+ stresse0
- Outcome
- growth of wheat seedlingse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The malondialdehyde(MDA) content in wheat seedlings was significantly increased(P0.05),and the growth of wheat seedlings was also obviously inhibited by Cd2+ stress.”
Claim · model-written summary
5.0 μmol/L ABA increased root activity and proline content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- ABA with the concentration of 5.0 μmol/Le0
- Outcome
- root activity and proline contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous ABA with the concentration of 5.0 μmol/L playing a noticeable role increased root activity and proline content,enhanced activities of SOD,POD and CAT,and decreased MDA content.”
t0“Wheat”
Claim · model-written summary
5.0 μmol/L ABA enhanced SOD, POD and CAT activities.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- ABA with the concentration of 5.0 μmol/Le0
- Outcome
- activities of SOD,POD and CATe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous ABA with the concentration of 5.0 μmol/L playing a noticeable role increased root activity and proline content,enhanced activities of SOD,POD and CAT,and decreased MDA content.”
t0“Wheat”
Claim · model-written summary
5.0 μmol/L ABA decreased MDA content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- ABA with the concentration of 5.0 μmol/Le0
- Outcome
- MDA contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous ABA with the concentration of 5.0 μmol/L playing a noticeable role increased root activity and proline content,enhanced activities of SOD,POD and CAT,and decreased MDA content.”
t0“Wheat”
Claim · model-written summary
1.0-5.0 μmol/L ABA eased cadmium growth inhibition.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 1.0-5.0 μmol/L ABAe0
- Outcome
- growth of wheat seedlingse0
- Direction
- easede0
- Comparator
- Cd2+e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous 1.0-5.0 μmol/L ABA eased the negative effects of Cd2+ on the growth of wheat seedlings”
Claim · model-written summary
5.0 μmol/L ABA increased shoot height by 6.73% versus Cd stress alone.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 5.0 μmol/L ABAe0
- Outcome
- shoot heighte0
- Direction
- increasede0
- Value
- 6.73%e0
- Comparator
- single Cd2+ stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“5.0 μmol/L ABA worked best with shoot height,root length and total biomass of seedlings in 5.0 μmol/L ABA and Cd2+ stress had increased 6.73%,149% and 10.52%,respectively,compared with those under single Cd2+ stress.”
t0“Wheat”
Claim · model-written summary
5.0 μmol/L ABA increased root length by 149% versus Cd stress alone.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 5.0 μmol/L ABAe0
- Outcome
- root lengthe0
- Direction
- increasede0
- Value
- 149%e0
- Comparator
- single Cd2+ stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“5.0 μmol/L ABA worked best with shoot height,root length and total biomass of seedlings in 5.0 μmol/L ABA and Cd2+ stress had increased 6.73%,149% and 10.52%,respectively,compared with those under single Cd2+ stress.”
t0“Wheat”
Claim · model-written summary
5.0 μmol/L ABA increased total biomass by 10.52% versus Cd stress alone.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 5.0 μmol/L ABAe0
- Outcome
- total biomasse0
- Direction
- increasede0
- Value
- 10.52%e0
- Comparator
- single Cd2+ stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“5.0 μmol/L ABA worked best with shoot height,root length and total biomass of seedlings in 5.0 μmol/L ABA and Cd2+ stress had increased 6.73%,149% and 10.52%,respectively,compared with those under single Cd2+ stress.”
t0“Wheat”
Claim · model-written summary
10.0 μmol/L ABA worsened seedling growth.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 10.0 μmol/L ABAe0
- Outcome
- growth of wheat seedlingse0
- Direction
- exacerbatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However,10.0 μmol/L ABA exacerbated the growth of wheat seedlings.”
Claim · model-written summary
The authors identify 5.0 μmol/L ABA as the most suitable concentration.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- 5.0 μmol/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furthermore,the most suitable concentration of ABA was defined to be 5.0 μmol/L.”
t0“Wheat”
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