Abstract
Samsun NN tobacco cells were transformed with chimeric genes for pathogenesis-related (PR) proteins derived from genomic (PR-1a, GRP) or cDNA (PR-S) clones under the transcriptional control of the cauliflower mosaic virus 35S promoter. Regenerated plants were assayed by RNA and protein gel blotting, and plants showing high specific expression of the inserted genes were selected for self-pollination and seed formation. Inspection of second generation transformants showed that constitutive expression of PR-1a, GRP, and PR-S in tobacco in general does not have an effect on the phenotypic appearance of the plants or the expression of other endogenous PR genes. Furthermore, constitutive expression of the above genes does not affect the susceptibility of the plants to infection with tobacco mosaic virus or alfalfa mosaic virus.
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 4
Claim · model-written summary
Constitutive PR-1a, GRP and PR-S expression generally did not change tobacco plant appearance.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- constitutive expression of PR-1a, GRP, and PR-Se0
- Gene
- PR-1a, GRP, and PR-Se0
- Outcome
- phenotypic appearance of the plantse0
- Direction
- does not have an effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“constitutive expression of PR-1a, GRP, and PR-S in tobacco in general does not have an effect on the phenotypic appearance of the plants”
Claim · model-written summary
Constitutive PR-1a, GRP and PR-S expression generally did not change other endogenous PR gene expression in tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- constitutive expression of PR-1a, GRP, and PR-Se0
- Gene
- PR-1a, GRP, and PR-Se0
- Outcome
- expression of other endogenous PR genese0
- Direction
- does not have an effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“constitutive expression of PR-1a, GRP, and PR-S in tobacco in general does not have an effect on the phenotypic appearance of the plants or the expression of other endogenous PR genes”
Claim · model-written summary
Constitutive PR gene expression did not alter tobacco susceptibility to tobacco mosaic virus.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- constitutive expression of the above genese0
- Interactor
- tobacco mosaic virus
Tobacco mosaic viruse0pathogen - Outcome
- susceptibility of the plants to infection with tobacco mosaic viruse0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“constitutive expression of the above genes does not affect the susceptibility of the plants to infection with tobacco mosaic virus or alfalfa mosaic virus”
t0“Constitutive expression of pathogenesis-related proteins PR-1, GRP, and PR-S in tobacco has no effect on virus infection.”
Claim · model-written summary
Constitutive PR gene expression did not alter tobacco susceptibility to alfalfa mosaic virus.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- constitutive expression of the above genese0
- Interactor
- alfalfa mosaic virus
Alfamovirus AMVe0pathogen - Outcome
- susceptibility of the plants to infection with tobacco mosaic virus or alfalfa mosaic viruse0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“constitutive expression of the above genes does not affect the susceptibility of the plants to infection with tobacco mosaic virus or alfalfa mosaic virus”
t0“Constitutive expression of pathogenesis-related proteins PR-1, GRP, and PR-S in tobacco has no effect on virus infection.”
The same questions in other papers
overexpression · Tobacco mosaic virus · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
overexpression · molecular: expression · Nicotiana tabacum (tobacco)Positive and negative results
5 papers in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 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.