Abstract
In this study, we examined the effect of methyl jasmonate (MJ) on lateral root (LR) formation in rice. Application of MJ to rice seedlings induced LR formation. This effect was blocked by the nitric oxide (NO) scavenger 2-(4carboxyphenyl)-4,4,5,5- tetramethyl-imidazoline-1-oxyl-3-oxide (cPTIO). Nitric oxide was detected by the specific fluorescence probe 4-amino-5-methylamino-2',7'-difluoroflorescein diacetate. Methyl jasmonateinduced NO fluorescence was specifically suppressed by cPTIO. Nitrate reductase (NR) inhibitor sodium tungstate completely inhibited MJ-induced LR formation and NO fluorescence. However, NO synthase inhibitor NG-nitro-L-arginine methyl ester hydrochloride partially reduced MJ-promoted LR formation and NO generation, indicating that the MJ-induced NO generation was related to the NR activity. Moreover, NO generation induced by MJ was localized in root area corresponding to LR emergence. Our results suggest that MJ-promoted LR formation in rice is mediated by the NO signaling pathway.
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Claims 9
Claim · model-written summary
Methyl jasmonate induced lateral-root formation in rice seedlings.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- rice seedlingse0
- Treatment
- MJe0
- Outcome
- LR formatione0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of MJ to rice seedlings induced LR formation”
Claim · model-written summary
The nitric-oxide scavenger cPTIO blocked methyl jasmonate-induced lateral-root formation in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- cPTIOe0
- Outcome
- This effecte0
- Direction
- blockede0
- Qualifier
- nitric oxide (NO) scavengere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“This effect was blocked by the nitric oxide (NO) scavenger 2-(4carboxyphenyl)-4,4,5,5- tetramethyl-imidazoline-1-oxyl-3-oxide (cPTIO)”
Claim · model-written summary
Methyl jasmonate-induced nitric-oxide fluorescence in rice was suppressed by cPTIO.
- Taxon
- RiceOryza sativat0
- Treatment
- cPTIOe0
- Outcome
- NO fluorescencee0
- Direction
- suppressede0
- Qualifier
- Methyl jasmonateinducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Methyl jasmonateinduced NO fluorescence was specifically suppressed by cPTIO”
Claim · model-written summary
Sodium tungstate completely inhibited methyl jasmonate-induced lateral-root formation in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- sodium tungstatee0
- Outcome
- MJ-induced LR formatione0
- Direction
- completely inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Nitrate reductase (NR) inhibitor sodium tungstate completely inhibited MJ-induced LR formation and NO fluorescence”
Claim · model-written summary
Sodium tungstate completely inhibited methyl jasmonate-induced nitric-oxide fluorescence in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- sodium tungstatee0
- Outcome
- NO fluorescencee0
- Direction
- completely inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Nitrate reductase (NR) inhibitor sodium tungstate completely inhibited MJ-induced LR formation and NO fluorescence”
Claim · model-written summary
The nitric-oxide synthase inhibitor partially reduced methyl jasmonate-promoted lateral-root formation in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- NG-nitro-L-arginine methyl ester hydrochloridee0
- Outcome
- MJ-promoted LR formatione0
- Direction
- partially reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“NO synthase inhibitor NG-nitro-L-arginine methyl ester hydrochloride partially reduced MJ-promoted LR formation and NO generation”
Claim · model-written summary
The nitric-oxide synthase inhibitor partially reduced methyl jasmonate-induced nitric-oxide generation in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- NG-nitro-L-arginine methyl ester hydrochloridee0
- Outcome
- NO generatione0
- Direction
- partially reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“NO synthase inhibitor NG-nitro-L-arginine methyl ester hydrochloride partially reduced MJ-promoted LR formation and NO generation”
Claim · model-written summary
Methyl jasmonate-induced nitric oxide generation was localized at the rice root area of lateral-root emergence.
- Taxon
- RiceOryza sativat0
- Organ / stage
- root areae0
- Outcome
- NO generation induced by MJ was localized in root area corresponding to LR emergencee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“NO generation induced by MJ was localized in root area corresponding to LR emergence”
Claim · model-written summary
The authors suggest nitric-oxide signaling mediates methyl jasmonate-promoted lateral-root formation in rice.
- Taxon
- riceOryza sativae0
- Outcome
- MJ-promoted LR formatione0
- Qualifier
- NO signaling pathwaye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results suggest that MJ-promoted LR formation in rice is mediated by the NO signaling pathway”
The same questions in other papers
(-)-methyl jasmonate · growth · Oryza sativa (rice)Results differ
6 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
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hydrochloride · growth · Oryza sativa (rice)Positive and negative results
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methyl ester · growth · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- positive
methyl ester · molecular: metabolites · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.