Abstract
Pathogenic infection causes auxins to accumulate in plant cells and suppresses plant defense systems. We isolated the OsSAUR51 (Oryza sativa small auxin-up RNA 51) gene as one of the rice field resistance-related genes from a retrotransposon Tos17-tagged ‘Nipponbare’ mutant (XC20) in which field resistance was reduced against several races of bacterial blight pathogens. OsSAUR51 expression was induced by infection of the pathogen and exogenous auxin treatment, whereas the OsSAUR51 gene in the XC20 insertion mutant lost its function due to the Tos17 insertion. We transformed the OsSAUR51 gene with the 1.0 kb OsSAUR51 native promoter into XC20 for complementation analysis and also introduced the OsSAUR51 gene controlled by RexPhi, an enhanced CaMV 35S promoter, into the rice cultivar ‘Dontokoi’ to make transgenic plants with enhanced expression of the OsSAUR51 gene. The OsSAUR51-transformed XC20 recovered its bacterial blight resistance, and the RexPhi::OsSAUR51-transformed ‘Dontokoi’ showed enhanced bacterial blight resistance as compared to untransformed ‘Dontokoi’. Auxin accumulation after the bacterial blight inoculation of XC20 was comparatively higher than that of ‘Nipponbare’, but the auxin levels of OsSAUR51-transformed XC20 were lower than those of untransformed XC20. Auxin accumulation after bacterial blight infection in the RexPhi::OsSAUR51-transformed ‘Dontokoi’ plants was repressed as compared to untransformed ‘Dontokoi’. These results suggest that the OsSAUR51 gene induces a field resistance mechanism and represses auxin accumulation after bacterial blight pathogen infection.
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Claims 9
Claim · model-written summary
OsSAUR51 expression in rice was induced by infection with the bacterial blight pathogen.
- Taxon
- rice
Oryza sativae2 - Treatment
- infection of the pathogene1
- Interactor
- bacterial blight pathogense3pathogen
- Gene
- OsSAUR51e1
- Outcome
- OsSAUR51 expressione1
- Direction
- inducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“OsSAUR51 expression was induced by infection of the pathogen and exogenous auxin treatment”
e2“as one of the rice field resistance-related genes”
e3“in which field resistance was reduced against several races of bacterial blight pathogens”
Claim · model-written summary
Exogenous auxin treatment induced OsSAUR51 expression in rice.
- Taxon
- riceOryza sativae2
- Treatment
- exogenous auxin treatmente1
- Gene
- OsSAUR51e1
- Outcome
- OsSAUR51 expressione1
- Direction
- inducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“OsSAUR51 expression was induced by infection of the pathogen and exogenous auxin treatment”
e2“as one of the rice field resistance-related genes”
Claim · model-written summary
The OsSAUR51 gene in the XC20 insertion mutant lost its function due to the Tos17 insertion.
- Taxon
- riceOryza sativae2
- Material
- XC20e4
- Treatment
- Tos17 insertione4
- Gene
- OsSAUR51e4
- Outcome
- functione4
- Qualifier
- due to the Tos17 insertione4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e4“whereas the OsSAUR51 gene in the XC20 insertion mutant lost its function due to the Tos17 insertion”
Claim · model-written summary
The OsSAUR51-transformed XC20 line recovered bacterial blight resistance.
- Taxon
- riceOryza sativae2
- Material
- XC20e5
- Treatment
- OsSAUR51-transformede5
- Interactor
- bacterial blight pathogense3pathogen
- Gene
- OsSAUR51e5
- Outcome
- bacterial blight resistancee5
- Direction
- recoverede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e3“in which field resistance was reduced against several races of bacterial blight pathogens”
e5“The OsSAUR51-transformed XC20 recovered its bacterial blight resistance”
Claim · model-written summary
Rice cultivar Dontokoi transformed with RexPhi::OsSAUR51 showed enhanced bacterial blight resistance compared with untransformed plants.
- Taxon
- riceOryza sativae2
- Material
- Dontokoie6
- Treatment
- RexPhi::OsSAUR51-transformede6
- Interactor
- bacterial blight pathogense3pathogen
- Gene
- OsSAUR51e6
- Outcome
- bacterial blight resistancee6
- Direction
- enhancede6
- Comparator
- untransformede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e3“in which field resistance was reduced against several races of bacterial blight pathogens”
e6“the RexPhi::OsSAUR51-transformed ‘Dontokoi’ showed enhanced bacterial blight resistance as compared to untransformed ‘Dontokoi’”
Claim · model-written summary
Auxin accumulation after bacterial blight inoculation was comparatively higher in XC20 than in Nipponbare.
- Taxon
- riceOryza sativae2
- Material
- XC20e7
- Treatment
- bacterial blight inoculatione7
- Interactor
- bacterial blight pathogense3pathogen
- Outcome
- Auxin accumulatione7
- Direction
- highere7
- Comparator
- Nipponbaree7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e3“in which field resistance was reduced against several races of bacterial blight pathogens”
e7“Auxin accumulation after the bacterial blight inoculation of XC20 was comparatively higher than that of ‘Nipponbare’”
Claim · model-written summary
Auxin levels were lower in OsSAUR51-transformed XC20 than in untransformed XC20.
- Taxon
- riceOryza sativae2
- Material
- XC20e3
- Treatment
- OsSAUR51-transformede3
- Gene
- OsSAUR51e3
- Outcome
- auxin levelse3
- Direction
- lowere3
- Comparator
- untransformed XC20e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e3“the auxin levels of OsSAUR51-transformed XC20 were lower than those of untransformed XC20”
Claim · model-written summary
Auxin accumulation after bacterial blight infection was repressed in RexPhi::OsSAUR51-transformed Dontokoi compared with untransformed plants.
- Taxon
- riceOryza sativae2
- Material
- Dontokoie4
- Treatment
- RexPhi::OsSAUR51-transformede4
- Interactor
- bacterial blight pathogense3pathogen
- Gene
- OsSAUR51e4
- Outcome
- Auxin accumulatione4
- Direction
- repressede4
- Comparator
- untransformede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e3“in which field resistance was reduced against several races of bacterial blight pathogens”
e4“Auxin accumulation after bacterial blight infection in the RexPhi::OsSAUR51-transformed ‘Dontokoi’ plants was repressed as compared to untransformed ‘Dontokoi’”
Claim · model-written summary
The authors suggest that OsSAUR51 induces a field resistance mechanism in rice.
- Taxon
- riceOryza sativae2
- Gene
- OsSAUR51e3
- Outcome
- field resistance mechanisme3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“as one of the rice field resistance-related genes”
e3“These results suggest that the OsSAUR51 gene induces a field resistance mechanism”
The same questions in other papers
inoculation · physiology: hormones · Oryza sativa (rice)Positive and negative results
3 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
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