Abstract
Bacterial wilt that caused by Ralstonia solanacearum poses a major threat to tomatoes. Some disease-resistant cultivars have been shown to significantly improve tomato resistance to bacterial wilt. Analyzing and harnessing the resistance mechanism of bacterial wilt-resistant cultivars is therefore of considerable importance for tomato resistance breeding. In this study, we have confirmed that the tomato disease-resistant cultivars “ZJ-7” and “04056” were more resistant to bacterial wilt than the susceptible cultivar Ailsa Craig cv. (AC), and then transcriptome sequencing analysis of roots from “ZJ-7” and “04056” revealed extensive changes in gene expression at 3 and 6 hours post-inoculation (hpi) with R. solanacearum . In both disease-resistant cultivars, the transcriptional expression levels of genes encoding pathogenesis-related (PR) proteins and transcription factors were markedly elevated in response to R. solanacearum infection at both time points. In contrast, the susceptible cultivar AC exhibited a considerably lower number of transcription factors responding to the infection, with up-regulated occuring only at 6 hpi, while the up-regulation of PR gene expression was observed only at 3 hpi. Although the specific up-regulated genes differed between “ZJ-7” and “04056”, both showed activation of ethylene biosynthesis-related genes. Ethephon application in AC promoted the expression of transcription factors at 3 hpi and restore PR gene expression at 6 hpi. These results indicate that sustained defense against bacterial wilt in tomato is closely assocated with ethylene synthesis, providing a theoretical basis for elucidating the resistance mechanism and enhancing disease resistance in tomato.
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Claims 11
Claim · model-written summary
ZJ-7 was more resistant to bacterial wilt than Ailsa Craig.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- ZJ-7e0
- Interactor
- Ralstonia solanacearum
Ralstonia solanacearume1pathogen - Outcome
- bacterial wilte0
- Direction
- more resistante0
- Comparator
- Ailsa Craig cv. (AC)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tomato disease-resistant cultivars “ZJ-7” and “04056” were more resistant to bacterial wilt than the susceptible cultivar Ailsa Craig cv. (AC)”
e1“Bacterial wilt that caused by Ralstonia solanacearum poses a major threat to tomatoes.”
Claim · model-written summary
04056 was more resistant to bacterial wilt than Ailsa Craig.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- 04056e0
- Outcome
- bacterial wilte0
- Direction
- more resistante0
- Comparator
- Ailsa Craig cv. (AC)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tomato disease-resistant cultivars “ZJ-7” and “04056” were more resistant to bacterial wilt than the susceptible cultivar Ailsa Craig cv. (AC)”
Claim · model-written summary
Resistant cultivars showed extensive root gene-expression changes at 3 and 6 hpi.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- ZJ-7e0
- Organ / stage
- rootse0
- Interactor
- R. solanacearumRalstonia solanacearume0pathogen
- Outcome
- gene expressione0
- Qualifier
- 3 and 6 hours post-inoculation (hpi)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transcriptome sequencing analysis of roots from “ZJ-7” and “04056” revealed extensive changes in gene expression at 3 and 6 hours post-inoculation (hpi) with R. solanacearum”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
PR protein gene expression rose in resistant cultivars at both time points after infection.
- Taxon
- TomatoSolanum lycopersicumt0
- Interactor
- R. solanacearumRalstonia solanacearume0pathogen
- Gene
- genes encoding pathogenesis-related (PR) proteinse0
- Outcome
- transcriptional expression levelse0
- Direction
- markedly elevatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both disease-resistant cultivars, the transcriptional expression levels of genes encoding pathogenesis-related (PR) proteins and transcription factors were markedly elevated in response to R. solanacearum infection at both time points”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
Transcription factor expression rose in resistant cultivars at both time points after infection.
- Taxon
- TomatoSolanum lycopersicumt0
- Interactor
- R. solanacearumRalstonia solanacearume0pathogen
- Gene
- transcription factorse0
- Outcome
- transcriptional expression levelse0
- Direction
- markedly elevatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both disease-resistant cultivars, the transcriptional expression levels of genes encoding pathogenesis-related (PR) proteins and transcription factors were markedly elevated in response to R. solanacearum infection at both time points”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
Susceptible AC showed fewer infection-responsive transcription factors, upregulated only at 6 hpi.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- ACe0
- Gene
- transcription factorse0
- Outcome
- number of transcription factors responding to the infectione0
- Direction
- lowere0
- Qualifier
- only at 6 hpie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the susceptible cultivar AC exhibited a considerably lower number of transcription factors responding to the infection, with up-regulated occuring only at 6 hpi”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
AC upregulated PR gene expression only at 3 hpi.
- Taxon
- TomatoSolanum lycopersicumt0
- Gene
- PR genee0
- Outcome
- PR gene expressione0
- Direction
- up-regulatione0
- Qualifier
- only at 3 hpie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the up-regulation of PR gene expression was observed only at 3 hpi”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
ZJ-7 and 04056 activated ethylene biosynthesis genes despite differing upregulated genes.
- Taxon
- TomatoSolanum lycopersicumt0
- Gene
- ethylene biosynthesis-related genese0
- Outcome
- activation of ethylene biosynthesis-related genese0
- Qualifier
- specific up-regulated genes differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although the specific up-regulated genes differed between “ZJ-7” and “04056”, both showed activation of ethylene biosynthesis-related genes”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
Ethephon promoted transcription factor expression in AC at 3 hpi.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- ACe0
- Treatment
- Ethephon applicatione0
- Gene
- transcription factorse0
- Outcome
- expression of transcription factorse0
- Direction
- promotede0
- Qualifier
- at 3 hpie0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethephon application in AC promoted the expression of transcription factors at 3 hpi”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
Ethephon restored PR gene expression in AC at 6 hpi.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- ACe0
- Treatment
- Ethephon applicatione0
- Gene
- PR genee0
- Outcome
- PR gene expressione0
- Direction
- restoree0
- Qualifier
- at 6 hpie0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethephon application in AC promoted the expression of transcription factors at 3 hpi and restore PR gene expression at 6 hpi”
t0“Tomato activates ethylene signaling to maintain pathogenesis-related genes expression for conferring bacterial wilt resistance”
Claim · model-written summary
Sustained tomato defense against bacterial wilt was associated with ethylene synthesis.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Ralstonia solanacearumRalstonia solanacearume1pathogen
- Compound
- ethylenee0
- Outcome
- sustained defense against bacterial wilte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sustained defense against bacterial wilt in tomato is closely assocated with ethylene synthesis”
e1“Bacterial wilt that caused by Ralstonia solanacearum poses a major threat to tomatoes.”
The same questions in other papers
(2-chloroethyl)phosphonic acid · molecular: expression · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
3 papers more in this group
See all 7 papers →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.