Abstract
Hydrophobins are abundant small hydrophobic proteins that are present on the surfaces of many filamentous fungi. The chestnut blight pathogen Cryphonectria parasitica was shown to produce a class II hydrophobin, cryparin. Cryparin is the most abundant protein produced by this fungus when grown in liquid culture. When the fungus is growing on chestnut trees, cryparin is found only in the fungal fruiting body walls. Deletion of the gene encoding cryparin resulted in a culture phenotype typical of hydrophobin deletion mutants of other fungi, i.e., easily wettable (nonhydrophobic) hyphae. When grown on the natural substrate of the fungus, however, cryparin-null mutation strains were unable to normally produce its fungal fruiting bodies. Although the stromal pustules showed normal development initially, they were unable to erupt through the bark of the tree. The hydrophobin cryparin thus plays an essential role in the fitness of this important plant pathogen by facilitating the eruption of the fungal fruiting bodies through the bark of its host tree.
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Claims 6
Claim · model-written summary
Deletion of the cryparin gene gave easily wettable (nonhydrophobic) hyphae in culture.
- Taxon
- Chestnutt0
- Treatment
- Deletion of the gene encoding cryparine1
- Interactor
- Cryphonectria parasitica
Cryphonectria parasiticae0pathogen - Gene
- cryparine1
- Outcome
- hyphaee1
- Qualifier
- easily wettable (nonhydrophobic)e1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Hydrophobin of the Chestnut Blight Fungus”
e0“The chestnut blight pathogen Cryphonectria parasitica was shown to produce a class II hydrophobin, cryparin”
e1“Deletion of the gene encoding cryparin resulted in a culture phenotype typical of hydrophobin deletion mutants of other fungi, i.e., easily wettable (nonhydrophobic) hyphae”
Claim · model-written summary
Cryparin-null mutant strains were unable to normally produce fungal fruiting bodies on chestnut trees.
- Taxon
- Chestnutt0
- Treatment
- cryparin-null mutatione2
- Interactor
- Cryphonectria parasiticaCryphonectria parasiticae0pathogen
- Outcome
- fungal fruiting bodiese2
- Qualifier
- unable to normally producee2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Hydrophobin of the Chestnut Blight Fungus”
e0“The chestnut blight pathogen Cryphonectria parasitica was shown to produce a class II hydrophobin, cryparin”
e2“When grown on the natural substrate of the fungus, however, cryparin-null mutation strains were unable to normally produce its fungal fruiting bodies”
Claim · model-written summary
Cryparin-null stromal pustules developed normally at first but were unable to erupt through the bark.
- Taxon
- Chestnutt0
- Treatment
- cryparin-null mutatione2
- Interactor
- Cryphonectria parasiticaCryphonectria parasiticae0pathogen
- Outcome
- erupt through the barke3
- Qualifier
- stromal pustules showed normal development initiallye3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Hydrophobin of the Chestnut Blight Fungus”
e0“The chestnut blight pathogen Cryphonectria parasitica was shown to produce a class II hydrophobin, cryparin”
e2“When grown on the natural substrate of the fungus, however, cryparin-null mutation strains were unable to normally produce its fungal fruiting bodies”
e3“Although the stromal pustules showed normal development initially, they were unable to erupt through the bark of the tree”
Claim · model-written summary
Cryparin is essential for fungal fitness because it facilitates eruption of fruiting bodies through the host bark.
Verbatim
t0“A Hydrophobin of the Chestnut Blight Fungus”
e4“The hydrophobin cryparin thus plays an essential role in the fitness of this important plant pathogen by facilitating the eruption of the fungal fruiting bodies through the bark of its host tree”
Claim · model-written summary
Cryparin is the most abundant protein produced by the chestnut blight fungus in liquid culture.
Verbatim
t0“A Hydrophobin of the Chestnut Blight Fungus”
e5“Cryparin is the most abundant protein produced by this fungus when grown in liquid culture”
Claim · model-written summary
Cryparin is found only in the fungal fruiting body walls when the fungus grows on chestnut trees.
Verbatim
t0“A Hydrophobin of the Chestnut Blight Fungus”
e6“When the fungus is growing on chestnut trees, cryparin is found only in the fungal fruiting body walls”
The same questions in other papers
loss of function · Cryphonectria parasitica · CastaneaResults agree
2 papers in the same direction as this paper
- positive
- positive
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.