Abstract
Isolates of Tomato spotted wilt virus (TSWV) severely and systemically infecting commercial pepper cultivars with resistance introgressed from Capsicum chinense PI152225 were found in Albenga (northwestern Italy) in July 2000. Experimentally, these resistance-breaking (RB) isolates overcame the resistance in C. chinense PI152225, but they produced infection in other hosts similarly to non-RB isolates from the same area. The RB isolates were indistinguishable from TSWV by serology and electron microscopy, and they were efficiently transmitted by Frankliniella occidentalis. Such isolates were recovered on the same farm in tomato, pepper, and artichoke 2 and 12 months later, suggesting natural spread from the resistant plants and survival. The RB isolates survived in experimental mixed infections with a non-RB isolate in susceptible pepper and C. chinense, but cross-protection in pepper acted against them. Commercial TSWV-resistant pepper but not resistant tomato cultivars from different companies were susceptible to these RB isolates after mechanical inoculation. Similar isolates were not detected among TSWV samples collected from 1993 to 2000 in the area. The management of TSWV and thrips using resistant pepper cultivars is discussed.
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Claims 13
Claim · model-written summary
Resistance-breaking TSWV isolates systemically infected resistant commercial pepper.
- Taxon
- peppere0
- Material
- commercial pepper cultivarse0
- Interactor
- Tomato spotted wilt virus
Orthotospovirus tomatomaculaee0pathogen - Outcome
- severely and systemically infectinge0
- Setting
- Albenga (northwestern Italy)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolates of Tomato spotted wilt virus (TSWV) severely and systemically infecting commercial pepper cultivars with resistance introgressed from Capsicum chinense PI152225 were found in Albenga (northwestern Italy) in July 2000”
Claim · model-written summary
RB isolates overcame resistance in C. chinense PI152225.
- Taxon
- C. chinense
.jpg?width=60)
Capsicum chinensee0 - Material
- C. chinense PI152225e0
- Interactor
- RBe0pathogen
- Outcome
- overcame the resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“these resistance-breaking (RB) isolates overcame the resistance in C. chinense PI152225”
Claim · model-written summary
RB isolates infected other hosts similarly to non-RB isolates.
Verbatim
e0“they produced infection in other hosts similarly to non-RB isolates from the same area”
t0“Tomato spotted wilt virus”
t1“Pepper”
Claim · model-written summary
Frankliniella occidentalis efficiently transmitted RB isolates.
- Taxon
- Peppert0
- Interactor
- Frankliniella occidentalis
Frankliniella occidentalise0pest - Outcome
- efficiently transmittede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they were efficiently transmitted by Frankliniella occidentalis”
t0“Pepper”
Claim · model-written summary
RB isolates were recovered in tomato on the same farm 2 and 12 months later.
- Taxon
- tomato
Solanum lycopersicume0 - Outcome
- isolates were recoverede0
- Value
- 2 and 12 monthse0
- Setting
- the same farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Such isolates were recovered on the same farm in tomato, pepper, and artichoke 2 and 12 months later”
Claim · model-written summary
RB isolates were recovered in pepper on the same farm 2 and 12 months later.
Verbatim
e0“Such isolates were recovered on the same farm in tomato, pepper, and artichoke 2 and 12 months later”
Claim · model-written summary
RB isolates were recovered in artichoke on the same farm 2 and 12 months later.
- Taxon
- artichoke
Cynara cardunculus var. scolymuse0 - Outcome
- isolates were recoverede0
- Value
- 2 and 12 monthse0
- Setting
- the same farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Such isolates were recovered on the same farm in tomato, pepper, and artichoke 2 and 12 months later”
Claim · model-written summary
RB isolates survived mixed infection with a non-RB isolate in susceptible pepper.
Verbatim
e0“The RB isolates survived in experimental mixed infections with a non-RB isolate in susceptible pepper and C. chinense”
Claim · model-written summary
RB isolates survived mixed infection with a non-RB isolate in C. chinense.
- Taxon
- C. chinenseCapsicum chinensee0
- Interactor
- RB isolatese0
- Outcome
- RB isolates survivede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The RB isolates survived in experimental mixed infections with a non-RB isolate in susceptible pepper and C. chinense”
Claim · model-written summary
Cross-protection in pepper acted against RB isolates.
Not reportedComparatorDirection
Verbatim
e0“cross-protection in pepper acted against them”
Claim · model-written summary
Commercial resistant pepper cultivars were susceptible after mechanical RB isolate inoculation.
- Taxon
- peppere0
- Material
- Commercial TSWV-resistant peppere0
- Treatment
- mechanical inoculatione0
- Interactor
- RB isolatese0pathogen
- Outcome
- were susceptiblee0
Not reportedComparatorDirection
Verbatim
e0“Commercial TSWV-resistant pepper but not resistant tomato cultivars from different companies were susceptible to these RB isolates after mechanical inoculation”
Claim · model-written summary
Resistant tomato cultivars were not susceptible after RB isolate inoculation.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- resistant tomato cultivarse0
- Treatment
- mechanical inoculatione0
- Interactor
- RB isolatese0pathogen
- Outcome
- not resistant tomato cultivarse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Commercial TSWV-resistant pepper but not resistant tomato cultivars from different companies were susceptible to these RB isolates after mechanical inoculation”
Claim · model-written summary
Similar isolates were absent from local 1993–2000 TSWV samples.
- Taxon
- Peppert0
- Interactor
- TSWVOrthotospovirus tomatomaculaee0pathogen
- Outcome
- Similar isolates were not detectede0
- Value
- 1993 to 2000e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar isolates were not detected among TSWV samples collected from 1993 to 2000 in the area”
t0“Pepper”
The same questions in other papers
inoculation · disease · Solanum lycopersicum (tomato)Positive and negative results
135 papers in the same direction as this paper · 128 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- negative
262 papers more in this group
See all 266 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.