Abstract
The growth and several physiological and biochemical indexes related to cold resistance of rice (Oryza sativa) seedlings were determined. The result showed that methyl jasmonate (MJ) at the concentration of 10-3 mol·L-1 inhibited significantly the growth of rice seedlings and enhanced membrane osmosis. However, MJ at the concentration of 10-4, 10-5, 10-6 or 10-7 mol·L-1 protected the growth of rice seedlings and cell membrane, especially that at the concentration of 10-5 mol·L-1. Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1, the degradation degree of chlorophyll was lower than that without treatment with MJ, the contents of soluble sugar, soluble protein and proline, and the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) increased, and malondialdehyde (MDA) content decreased, thus the cold resistance of rice seedlings was enhanced.
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Claims 8
Claim · model-written summary
Methyl jasmonate at 10-3 mol·L-1 significantly inhibited rice seedling growth.
- Taxon
- rice
Oryza sativae0 - Treatment
- methyl jasmonate (MJ) at the concentration of 10-3 mol·L-1e0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“methyl jasmonate (MJ) at the concentration of 10-3 mol·L-1 inhibited significantly the growth of rice seedlings”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
Methyl jasmonate at 10-3 mol·L-1 enhanced membrane osmosis.
- Taxon
- riceOryza sativae0
- Treatment
- methyl jasmonate (MJ) at the concentration of 10-3 mol·L-1e0
- Outcome
- membrane osmosise0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“methyl jasmonate (MJ) at the concentration of 10-3 mol·L-1 inhibited significantly the growth of rice seedlings and enhanced membrane osmosis.”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
Methyl jasmonate from 10-4 through 10-7 mol·L-1 protected seedling growth and membranes, especially at 10-5.
- Taxon
- riceOryza sativae0
- Treatment
- MJ at the concentration of 10-4, 10-5, 10-6 or 10-7 mol·L-1e0
- Outcome
- growth of rice seedlings and cell membranee0
- Direction
- protectede0
- Qualifier
- especially that at the concentration of 10-5 mol·L-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MJ at the concentration of 10-4, 10-5, 10-6 or 10-7 mol·L-1 protected the growth of rice seedlings and cell membrane, especially that at the concentration of 10-5 mol·L-1.”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
At 10-5 mol·L-1, methyl jasmonate reduced leaf chlorophyll degradation versus untreated rice.
- Taxon
- riceOryza sativat0
- Treatment
- MJ at the concentration of 10-5 mol·L-1e1
- Outcome
- degradation degree of chlorophylle0
- Direction
- lowere0
- Comparator
- without treatment with MJe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the degradation degree of chlorophyll was lower than that without treatment with MJ”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
At 10-5 mol·L-1, methyl jasmonate increased soluble sugar, soluble protein and proline.
- Taxon
- riceOryza sativat0
- Treatment
- MJ at the concentration of 10-5 mol·L-1e1
- Outcome
- contents of soluble sugar, soluble protein and prolinee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of soluble sugar, soluble protein and proline, and the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) increased”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
At 10-5 mol·L-1, methyl jasmonate increased SOD, POD and CAT activities.
- Taxon
- riceOryza sativat0
- Treatment
- MJ at the concentration of 10-5 mol·L-1e1
- Outcome
- activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) increased”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
At 10-5 mol·L-1, methyl jasmonate decreased malondialdehyde content.
- Taxon
- riceOryza sativat0
- Treatment
- MJ at the concentration of 10-5 mol·L-1e1
- Outcome
- malondialdehyde (MDA) contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“malondialdehyde (MDA) content decreased”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
Claim · model-written summary
Methyl jasmonate at 10-5 mol·L-1 enhanced cold resistance of rice seedlings.
- Taxon
- riceOryza sativae0
- Treatment
- MJ at the concentration of 10-5 mol·L-1e1
- Outcome
- cold resistancee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cold resistance of rice seedlings was enhanced.”
t0“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
t1“Effects of Methyl Jasmonate on Cold Resistance of Rice (Oryza sativa L.) Seedlings”
e1“Of the leaves of rice seedlings treated with MJ at the concentration of 10-5 mol·L-1”
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