Abstract
In Tobacco mosaic virus (TMV)-infected tobacco plants carrying the N resistance gene, a hypersensitive reaction or response (HR) occurs to enclose the virus in the infected tissue. Although a contribution of peroxidases to the resistance has been proposed, no evidence has been presented that tobacco peroxidase genes respond to HR. Here, we describe the HR-induced expression of a tobacco peroxidase gene (tpoxC1) whose induction kinetics were slightly different from those of acidic and basic tobacco pathogenesis-related (PR) protein genes. Interestingly, tpoxC1 was insensitive to the inducers of PR genes such as salicylic acid, methyl jasmonate, and ethephon. Spermine activated tpoxC1 gene expression at a low level and both acidic and basic PR gene expression at a considerably higher level. These results indicate that the induced expression of tpoxC1 is regulated differently from that of classical tobacco PR genes in the N gene-mediated self-defense system in tobacco plants.
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Claims 4
Claim · model-written summary
HR induced tpoxC1 expression, with kinetics slightly different from acidic and basic PR genes.
- Taxon
- tobacco
Nicotiana tabacume0 - Gene
- tpoxC1e0
- Outcome
- HR-induced expressione0
- Comparator
- acidic and basic tobacco pathogenesis-related (PR) protein genese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Here, we describe the HR-induced expression of a tobacco peroxidase gene (tpoxC1) whose induction kinetics were slightly different from those of acidic and basic tobacco pathogenesis-related (PR) protein genes.”
Claim · model-written summary
Salicylic acid, methyl jasmonate and ethephon did not induce tpoxC1.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- salicylic acid, methyl jasmonate, and ethephone0
- Gene
- tpoxC1e0
- Outcome
- tpoxC1e0
- Direction
- insensitivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interestingly, tpoxC1 was insensitive to the inducers of PR genes such as salicylic acid, methyl jasmonate, and ethephon.”
t0“Tobacco”
Claim · model-written summary
Spermine activated tpoxC1 expression at a low level.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- Sperminee0
- Gene
- tpoxC1e0
- Outcome
- tpoxC1 gene expressione0
- Direction
- activatede0
- Qualifier
- at a low levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spermine activated tpoxC1 gene expression at a low level and both acidic and basic PR gene expression at a considerably higher level.”
t0“Tobacco”
Claim · model-written summary
Spermine activated acidic and basic PR gene expression at a considerably higher level.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- Sperminee0
- Outcome
- both acidic and basic PR gene expressione0
- Direction
- activatede0
- Qualifier
- at a considerably higher levele0
- Comparator
- tpoxC1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spermine activated tpoxC1 gene expression at a low level and both acidic and basic PR gene expression at a considerably higher level.”
t0“Tobacco”
The same questions in other papers
spermine · molecular: expression · Nicotiana tabacum (tobacco)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- negative
2 papers more in this group
See all 6 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.