Abstract
summary In tomato and related species, the Cf9 resistance gene induces hypersensitive cell death and activates downstream defence pathways upon recognition of the Avr9 elicitor. We investigated whether the Cf9-Avr9 response without hypersensitive cell death symptoms increases resistance to several fungi. A low Avr9 dose that does not cause hypersensitive cell death was injected in Cf9 tomato and transgenic Cf9 oilseed rape plants. Subsequently, the injected leaves were infected with different fungal pathogens. The disease development of Botrytis cinerea was delayed in Cf9 tomato when the pathogen was inoculated on, or around, the Avr9 injection site. Disease development of Leptosphaeria maculans and Sclerotinia sclerotiorum was delayed on Cf9 oilseed rape plant parts located around the Avr9 injection site. Disease development of Oidium lycopersicum in Cf9 tomato or Erysiphe polygoni in Cf9 oilseed rape was not restricted on leaves injected with Avr9. The Avr9 injection induced systemic resistance to L. maculans and E. polygoni in Cf9 oilseed rape. F(1)(Cf9xAvr9) oilseed rape plants, obtained from crosses of transgenic Cf9x transgenic Avr9 oilseed rape, exhibited higher levels of resistance to L. maculans and E. polygoni but not to S. sclerotiorum, than wild-type plants. F(1)(Cf9xAvr9) plants treated with benzothiadiazole (BTH) did not show elevated levels of expression of some pathogenesis-related genes but developed higher levels of resistance to L. maculans than BTH-treated wild-type plants. This report demonstrates that the hypersensitive cell death which is associated with the Cf9-Avr9 response is not required for quantitative disease resistance.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Avr9 injection delayed Botrytis cinerea disease in Cf9 tomato at or near the injection site.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Cf9 tomatoe0
- Treatment
- Avr9 injectione0
- Interactor
- Botrytis cinerea
Botrytis cinereae0pathogen - Gene
- Cf9e0
- Outcome
- disease development of Botrytis cinereae0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease development of Botrytis cinerea was delayed in Cf9 tomato when the pathogen was inoculated on, or around, the Avr9 injection site.”
Claim · model-written summary
Avr9 injection delayed Leptosphaeria maculans disease around the injection site in Cf9 oilseed rape.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Material
- Cf9 oilseed rapee0
- Treatment
- Avr9 injectione0
- Interactor
- Leptosphaeria maculans
Plenodomus lingame0pathogen - Outcome
- Disease development of Leptosphaeria maculanse0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Disease development of Leptosphaeria maculans and Sclerotinia sclerotiorum was delayed on Cf9 oilseed rape plant parts located around the Avr9 injection site.”
Claim · model-written summary
Avr9 injection delayed Sclerotinia sclerotiorum disease around the injection site in Cf9 oilseed rape.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- Cf9 oilseed rapee0
- Treatment
- Avr9 injectione0
- Interactor
- Sclerotinia sclerotiorum
Sclerotinia sclerotiorume0pathogen - Outcome
- Disease developmente0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease development of Leptosphaeria maculans and Sclerotinia sclerotiorum was delayed on Cf9 oilseed rape plant parts located around the Avr9 injection site.”
Claim · model-written summary
Avr9 injection did not restrict Oidium lycopersicum disease in Cf9 tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Cf9 tomatoe0
- Treatment
- injected with Avr9e0
- Interactor
- Oidium lycopersicume0pathogen
- Outcome
- Disease development of Oidium lycopersicume0
- Direction
- not restrictede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease development of Oidium lycopersicum in Cf9 tomato or Erysiphe polygoni in Cf9 oilseed rape was not restricted on leaves injected with Avr9.”
Claim · model-written summary
Avr9 injection did not restrict Erysiphe polygoni disease in Cf9 oilseed rape leaves.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- Cf9 oilseed rapee0
- Treatment
- injected with Avr9e0
- Interactor
- Erysiphe polygoni
Erysiphe polygonie0pathogen - Outcome
- Erysiphe polygonie0
- Direction
- not restrictede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease development of Oidium lycopersicum in Cf9 tomato or Erysiphe polygoni in Cf9 oilseed rape was not restricted on leaves injected with Avr9.”
Claim · model-written summary
Avr9 injection induced systemic resistance to L. maculans in Cf9 oilseed rape.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- Cf9 oilseed rapee0
- Treatment
- Avr9 injectione0
- Interactor
- L. maculansPlenodomus lingame0pathogen
- Outcome
- systemic resistance to L. maculanse0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Avr9 injection induced systemic resistance to L. maculans and E. polygoni in Cf9 oilseed rape.”
Claim · model-written summary
Avr9 injection induced systemic resistance to E. polygoni in Cf9 oilseed rape.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- Cf9 oilseed rapee0
- Treatment
- Avr9 injectione0
- Interactor
- E. polygoniErysiphe polygonie0pathogen
- Outcome
- systemic resistancee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Avr9 injection induced systemic resistance to L. maculans and E. polygoni in Cf9 oilseed rape.”
Claim · model-written summary
Cf9xAvr9 F1 oilseed rape had higher resistance to L. maculans than wild-type plants.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- F(1)(Cf9xAvr9)e0
- Interactor
- L. maculansPlenodomus lingame0pathogen
- Outcome
- resistance to L. maculanse0
- Direction
- highere0
- Comparator
- wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F(1)(Cf9xAvr9) oilseed rape plants, obtained from crosses of transgenic Cf9x transgenic Avr9 oilseed rape, exhibited higher levels of resistance to L. maculans and E. polygoni but not to S. sclerotiorum, than wild-type plants.”
Claim · model-written summary
Cf9xAvr9 F1 oilseed rape had higher resistance to E. polygoni than wild-type plants.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- F(1)(Cf9xAvr9)e0
- Interactor
- E. polygoniErysiphe polygonie0pathogen
- Outcome
- resistancee0
- Direction
- highere0
- Comparator
- wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F(1)(Cf9xAvr9) oilseed rape plants, obtained from crosses of transgenic Cf9x transgenic Avr9 oilseed rape, exhibited higher levels of resistance to L. maculans and E. polygoni but not to S. sclerotiorum, than wild-type plants.”
Claim · model-written summary
Cf9xAvr9 F1 oilseed rape did not show higher resistance to S. sclerotiorum than wild type.
- Taxon
- oilseed rapeBrassica napuse0
- Material
- F(1)(Cf9xAvr9)e0
- Interactor
- S. sclerotiorumSclerotinia sclerotiorume0pathogen
- Outcome
- resistancee0
- Direction
- note0
- Comparator
- wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F(1)(Cf9xAvr9) oilseed rape plants, obtained from crosses of transgenic Cf9x transgenic Avr9 oilseed rape, exhibited higher levels of resistance to L. maculans and E. polygoni but not to S. sclerotiorum, than wild-type plants.”
Claim · model-written summary
BTH-treated Cf9xAvr9 F1 plants did not show elevated expression of some pathogenesis-related genes.
- Taxon
- oilseed rapeBrassica napust1
- Material
- F(1)(Cf9xAvr9)e0
- Treatment
- benzothiadiazole (BTH)e0
- Gene
- pathogenesis-related genese0
- Outcome
- expression of some pathogenesis-related genese0
- Direction
- did not show elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F(1)(Cf9xAvr9) plants treated with benzothiadiazole (BTH) did not show elevated levels of expression of some pathogenesis-related genes”
t1“oilseed rape”
Claim · model-written summary
BTH-treated Cf9xAvr9 F1 plants had higher L. maculans resistance than BTH-treated wild type.
- Taxon
- oilseed rapeBrassica napust1
- Material
- F(1)(Cf9xAvr9)e0
- Treatment
- benzothiadiazole (BTH)e0
- Interactor
- L. maculansPlenodomus lingame0pathogen
- Outcome
- resistance to L. maculanse0
- Direction
- highere0
- Comparator
- BTH-treated wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F(1)(Cf9xAvr9) plants treated with benzothiadiazole (BTH) did not show elevated levels of expression of some pathogenesis-related genes but developed higher levels of resistance to L. maculans than BTH-treated wild-type plants.”
t1“oilseed rape”
Claim · model-written summary
The authors conclude hypersensitive cell death is not required for quantitative disease resistance in the Cf9-Avr9 response.
- Taxon
- tomato and oilseed rapeBrassica napusSolanum lycopersicumt1
- Gene
- Cf9-Avr9e0
- Outcome
- quantitative disease resistancee0
- Qualifier
- hypersensitive cell deathe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This report demonstrates that the hypersensitive cell death which is associated with the Cf9-Avr9 response is not required for quantitative disease resistance.”
t1“tomato and oilseed rape”
The same questions in other papers
benzothiadiazole · molecular: expression · Brassica napus (oilseed rape)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
acibenzolar-S-methyl · molecular: expression · Brassica napus (oilseed rape)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
application · Plenodomus lingam · Brassica napus (oilseed rape)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
application · Sclerotinia sclerotiorum · Brassica napus (oilseed rape)Positive and negative results
8 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
12 papers more in this group
See all 16 papers →application · Botrytis cinerea · Solanum lycopersicum (tomato)Positive and negative results
20 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
19 papers more in this group
See all 23 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.