Abstract
Carrot root tissue discs rotted rapidly in anaerobic conditions after inoculation with soil from 40 different carrot fields and from ten fields of a mixed arable farm. Significant differences occurred in rotting potential between the soils and pectolytic Clostridium spp. were isolated from the rotted discs. Direct counts of pectolytic clostridia on selective pectate plates detected populations of 44–23.5 × 10 3 viable propagules/g dry soil in field soils. Significant increases in viable propagules were found in the rhizosphere soils of most carrot crops and in a range of other arable crops examined. The ratios of populations in the rhizospheres and surrounding soils varied between 1.8 and 8.2. Irrigating to excess and inter‐row cultivation of carrot crops did not consistently affect populations in soil or on roots.
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Claims 9
Claim · model-written summary
Soil inoculation rapidly rotted carrot root discs anaerobically.
- Taxon
- Carrot
Daucus carotae0 - Treatment
- inoculation with soile0
- Outcome
- root tissue discs rottede0
- Direction
- rapidlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carrot root tissue discs rotted rapidly in anaerobic conditions after inoculation with soil from 40 different carrot fields and from ten fields of a mixed arable farm.”
Claim · model-written summary
Soils differed significantly in carrot rotting potential.
- Taxon
- carrotDaucus carotat0
- Outcome
- rotting potentiale0
- Direction
- differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences occurred in rotting potential between the soils”
t0“carrot”
Claim · model-written summary
Pectolytic Clostridium spp. were isolated from rotted carrot discs.
- Taxon
- carrotDaucus carotat0
- Interactor
- pectolytic Clostridium spp.e0pathogen
- Outcome
- isolated from the rotted discse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pectolytic Clostridium spp. were isolated from the rotted discs.”
t0“carrot”
Claim · model-written summary
Field soils contained 44–23.5 × 10 3 viable pectolytic clostridial propagules per gram dry soil.
- Taxon
- carrotDaucus carotat0
- Outcome
- populationse0
- Value
- 44–23.5 × 10 3 viable propagules/g dry soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detected populations of 44–23.5 × 10 3 viable propagules/g dry soil in field soils.”
e1“Direct counts of pectolytic clostridia on selective pectate plates detected populations”
t0“carrot”
t1“Pectolytic Clostridium spp. in soils and rhizospheres of carrot and other arable crops in east Scotland”
Claim · model-written summary
Viable clostridial propagules increased significantly in most carrot rhizospheres.
- Taxon
- carrotDaucus carotae0
- Organ / stage
- rhizosphere soilse0
- Outcome
- viable propagulese0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in viable propagules were found in the rhizosphere soils of most carrot crops”
e1“Direct counts of pectolytic clostridia on selective pectate plates detected populations”
t0“carrot”
t1“Pectolytic Clostridium spp. in soils and rhizospheres of carrot and other arable crops in east Scotland”
Claim · model-written summary
Viable clostridial propagules also increased significantly in other arable crop rhizospheres.
Verbatim
e0“and in a range of other arable crops examined.”
e1“Significant increases in viable propagules were found in the rhizosphere soils of most carrot crops”
e2“Direct counts of pectolytic clostridia on selective pectate plates detected populations”
t0“carrot”
t1“Pectolytic Clostridium spp. in soils and rhizospheres of carrot and other arable crops in east Scotland”
Claim · model-written summary
Rhizosphere to surrounding soil population ratios ranged from 1.8 to 8.2.
- Taxon
- carrotDaucus carotat0
- Outcome
- ratios of populations in the rhizospheres and surrounding soilse0
- Value
- 1.8 and 8.2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratios of populations in the rhizospheres and surrounding soils varied between 1.8 and 8.2.”
e1“Direct counts of pectolytic clostridia on selective pectate plates detected populations”
t0“carrot”
t1“Pectolytic Clostridium spp. in soils and rhizospheres of carrot and other arable crops in east Scotland”
Claim · model-written summary
Excess irrigation did not consistently affect soil or root populations.
- Taxon
- carrotDaucus carotae0
- Treatment
- Irrigating to excesse0
- Outcome
- populations in soil or on rootse0
- Direction
- did not consistently affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigating to excess and inter‐row cultivation of carrot crops did not consistently affect populations in soil or on roots.”
e1“Direct counts of pectolytic clostridia on selective pectate plates detected populations”
t0“carrot”
t1“Pectolytic Clostridium spp. in soils and rhizospheres of carrot and other arable crops in east Scotland”
Claim · model-written summary
Interrow cultivation did not consistently affect soil or root populations.
- Taxon
- carrotDaucus carotae0
- Treatment
- inter‐row cultivatione0
- Outcome
- populations in soil or on rootse0
- Direction
- did not consistently affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigating to excess and inter‐row cultivation of carrot crops did not consistently affect populations in soil or on roots.”
e1“Direct counts of pectolytic clostridia on selective pectate plates detected populations”
t0“carrot”
t1“Pectolytic Clostridium spp. in soils and rhizospheres of carrot and other arable crops in east Scotland”
The same questions in other papers
inoculation · molecular: metabolites · Daucus carota (carrot)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
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.