Abstract
Some strains of Rhodococcus fascians exist only as epiphytes on the plant surface whereas others can become endophytic and cause various abnormalities including the release of multiple buds and reduced root growth. The abnormalities reflect the action of cytokinin. The strains that can become endophytic harbour a linear plasmid that carries cytokinin biosynthesis, activation and destruction genes. However, both epiphytic and endophytic forms can release cytokinin into culture, affect cytokinin metabolism within inoculated plants and enhance the expression of sugar and amino acid transporters and cell wall invertases, but only the endophytic form markedly affects the morphology of the plant. A unique methylated cytokinin, dimethylated N6-(∆2-isopentenyl)adenine (2-MeiP), operating in a high sugar environment, is the likely causative factor of the severe morphological abnormalities observed when plants are inoculated with R. fascians strains carrying the linear plasmid.
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Claims 8
Claim · model-written summary
Only the endophytic form of R. fascians markedly affects plant morphology when plants are inoculated with strains carrying the linear plasmid.
- Taxon
- plantsViridiplantaee2
- Treatment
- inoculated with R. fascians strains carrying the linear plasmide2
- Interactor
- R. fascianse2other
- Outcome
- morphology of the plante1
Not reportedComparatorDirection
Verbatim
e1“only the endophytic form markedly affects the morphology of the plant”
e2“when plants are inoculated with R. fascians strains carrying the linear plasmid”
Claim · model-written summary
Endophytic R. fascians strains cause the release of multiple buds in inoculated plants.
- Taxon
- plantsViridiplantaee2
- Treatment
- inoculated with R. fascians strains carrying the linear plasmide2
- Interactor
- R. fascianse2other
- Outcome
- release of multiple budse3
- Direction
- increaseinferrede3
Not reportedComparator
Verbatim
e2“when plants are inoculated with R. fascians strains carrying the linear plasmid”
e3“various abnormalities including the release of multiple buds and reduced root growth”
Claim · model-written summary
Endophytic R. fascians strains reduce root growth in inoculated plants.
- Taxon
- plantsViridiplantaee2
- Treatment
- inoculated with R. fascians strains carrying the linear plasmide2
- Interactor
- R. fascianse2other
- Outcome
- root growthe3
- Direction
- reducede3
Not reportedComparator
Verbatim
e2“when plants are inoculated with R. fascians strains carrying the linear plasmid”
e3“various abnormalities including the release of multiple buds and reduced root growth”
Claim · model-written summary
Both epiphytic and endophytic R. fascians forms release cytokinin into culture.
- Taxon
- plantsViridiplantaee2
- Outcome
- release cytokinin into culturee4
Verbatim
e2“when plants are inoculated with R. fascians strains carrying the linear plasmid”
e4“both epiphytic and endophytic forms can release cytokinin into culture”
Claim · model-written summary
Both epiphytic and endophytic R. fascians forms affect cytokinin metabolism within inoculated plants.
- Taxon
- plantsViridiplantaee5
- Treatment
- inoculatede5
- Outcome
- cytokinin metabolisme5
Not reportedComparatorDirection
Verbatim
e4“both epiphytic and endophytic forms can release cytokinin into culture”
e5“affect cytokinin metabolism within inoculated plants”
Claim · model-written summary
Both epiphytic and endophytic R. fascians forms enhance the expression of sugar and amino acid transporters and cell wall invertases in inoculated plants.
- Taxon
- plantsViridiplantaee2
- Treatment
- both epiphytic and endophytic formse4
- Gene
- cell wall invertasese6
- Outcome
- expression of sugar and amino acid transporters and cell wall invertasese6
- Direction
- enhancee6
Not reportedComparator
Verbatim
e2“when plants are inoculated with R. fascians strains carrying the linear plasmid”
e4“both epiphytic and endophytic forms can release cytokinin into culture”
e6“enhance the expression of sugar and amino acid transporters and cell wall invertases”
Claim · model-written summary
2-MeiP, operating in a high sugar environment, is the likely causative factor of severe morphological abnormalities in plants inoculated with endophytic R. fascians.
Verbatim
e6“is the likely causative factor of the severe morphological abnormalities observed when plants are inoculated with R. fascians strains carrying the linear plasmid”
e7“dimethylated N6-(∆2-isopentenyl)adenine (2-MeiP), operating in a high sugar environment”
Claim · model-written summary
The endophytic-capable R. fascians strains harbour a linear plasmid carrying cytokinin biosynthesis, activation and destruction genes.
- Taxon
- plantsViridiplantaee2
- Gene
- cytokinin biosynthesis, activation and destruction genese6
- Outcome
- linear plasmid that carries cytokinin biosynthesis, activation and destruction genese6
Verbatim
e2“when plants are inoculated with R. fascians strains carrying the linear plasmid”
e6“The strains that can become endophytic harbour a linear plasmid that carries cytokinin biosynthesis, activation and destruction genes”
The same questions in other papers
inoculation · growth · Viridiplantae (plants)Positive and negative results
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See all 46 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.