Abstract
Sugar beet cultivation is dependent on an effective control of beet necrotic yellow vein virus (BNYVV, family Benyviridae), which causes tremendous economic losses in sugar production. As the virus is transmitted by a soilborne protist, the use of resistant cultivars is currently the only way to control the disease. The Rz2 gene product belongs to a family of proteins conferring resistance towards diverse pathogens in plants. These proteins contain coiled-coil and leucine-rich repeat domains. After artificial inoculation of homozygous Rz2 resistant sugar beet lines, BNYVV and beet soilborne mosaic virus (BSBMV, family Benyviridae) were not detected. Analysis of the expression of Rz2 in naturally infected plants indicated constitutive expression in the root system. In a transient assay, coexpression of Rz2 and the individual BNYVV-encoded proteins revealed that only the combination of Rz2 and triple gene block protein 1 (TGB1) resulted in a hypersensitive reaction (HR)-like response. Furthermore, HR was also triggered by the TGB1 homologues from BSBMV as well as from the more distantly related beet soilborne virus (family Virgaviridae). This is the first report of an R gene providing resistance across different plant virus families.
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Claims 7
Claim · model-written summary
BNYVV was undetected after inoculation of homozygous Rz2 resistant sugar beet lines.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Material
- homozygous Rz2 resistant sugar beet linese0
- Treatment
- artificial inoculatione0
- Interactor
- BNYVVe0pathogen
- Gene
- Rz2e0
- Outcome
- BNYVVe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After artificial inoculation of homozygous Rz2 resistant sugar beet lines, BNYVV and beet soilborne mosaic virus (BSBMV, family Benyviridae) were not detected.”
Claim · model-written summary
BSBMV was undetected after inoculation of homozygous Rz2 resistant sugar beet lines.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Material
- homozygous Rz2 resistant sugar beet linese0
- Treatment
- artificial inoculatione0
- Interactor
- beet soilborne mosaic viruse0pathogen
- Gene
- Rz2e0
- Outcome
- beet soilborne mosaic viruse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After artificial inoculation of homozygous Rz2 resistant sugar beet lines, BNYVV and beet soilborne mosaic virus (BSBMV, family Benyviridae) were not detected.”
Claim · model-written summary
Rz2 expression in naturally infected plants was constitutive in roots.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Organ / stage
- root systeme0
- Gene
- Rz2e0
- Outcome
- constitutive expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of the expression of Rz2 in naturally infected plants indicated constitutive expression in the root system.”
t0“sugar beet‐infecting viruses”
Claim · model-written summary
Coexpression of Rz2 with BNYVV TGB1 alone produced an HR-like response.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- combination of Rz2 and triple gene block protein 1 (TGB1)e0
- Gene
- Rz2e0
- Outcome
- hypersensitive reaction (HR)-like responsee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only the combination of Rz2 and triple gene block protein 1 (TGB1) resulted in a hypersensitive reaction (HR)-like response.”
t0“sugar beet‐infecting viruses”
Claim · model-written summary
BSBMV TGB1 homologues triggered HR.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Interactor
- BSBMVBeet soil-borne mosaic viruse0pathogen
- Gene
- TGB1e0
- Outcome
- HRe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HR was also triggered by the TGB1 homologues from BSBMV as well as from the more distantly related beet soilborne virus (family Virgaviridae).”
t0“sugar beet‐infecting viruses”
Claim · model-written summary
Beet soilborne virus TGB1 homologues triggered HR.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Interactor
- beet soilborne viruse0pathogen
- Gene
- TGB1e0
- Outcome
- HRe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HR was also triggered by the TGB1 homologues from BSBMV as well as from the more distantly related beet soilborne virus (family Virgaviridae).”
t0“sugar beet‐infecting viruses”
Claim · model-written summary
Rz2 was reported as an R gene conferring resistance across plant virus families.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Gene
- Rz2t0
- Outcome
- resistance across different plant virus familiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This is the first report of an R gene providing resistance across different plant virus families.”
t0“The Beta vulgaris‐derived resistance gene Rz2 confers broad‐spectrum resistance against soilborne sugar beet‐infecting viruses”
The same questions in other papers
inoculation · disease · Beta vulgaris (beet)Positive and negative results
6 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
20 papers more in this group
See all 24 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.