Abstract
SUMMARY The secondary phloem parenchyma of cold‐stored turgid roots of carrot ( Daucus carota ) is capable of localizing mycelial infection by Botrytis cinerea , producing a dark resistant lesion. The percentage of roots exhibiting this reaction declined with increasing time in cold‐store: when freshly harvested and wound‐inoculated in October 1974, 99% of roots resisted invasion, whereas only 5% of those stored until March 1975 did so. The surface dimensions of resistant lesions did not increase between 33 and 55 days after inoculation. However, the surface dimensions and mean weights of lesions (arising from inoculations performed at different times over the course of the storage season) were both larger with increasing time in storage of roots prior to inoculation. The ability of the root tissue to localize infection was reduced if the roots lost 5–10% or more of their fresh weight before inoculation, resulting progressively in susceptibility. Compared with roots wound‐inoculated using mycelial disks, there was an overall reduction in infection when carrots were wound‐inoculated using conidia or when conidia or mycelial disks were inoculated onto the apparently undamaged surface of roots.
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Claims 7
Claim · model-written summary
Cold-stored turgid carrot roots localized Botrytis cinerea mycelial infection in dark resistant lesions.
- Taxon
- carrot
Daucus carotae0 - Organ / stage
- rootse0
- Interactor
- Botrytis cinerea
Botrytis cinereae0pathogen - Outcome
- dark resistant lesione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The secondary phloem parenchyma of cold‐stored turgid roots of carrot ( Daucus carota ) is capable of localizing mycelial infection by Botrytis cinerea , producing a dark resistant lesion”
Claim · model-written summary
The fraction of carrot roots resisting invasion declined from 99% after harvest to 5% after storage until March.
- Taxon
- carrotsDaucus carotat0
- Outcome
- percentage of roots exhibiting this reactione0
- Direction
- declinede0
- Value
- 99%e0
- Qualifier
- only 5%e0
- Comparator
- freshly harvestede0
- Setting
- cold‐storee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of roots exhibiting this reaction declined with increasing time in cold‐store: when freshly harvested and wound‐inoculated in October 1974, 99% of roots resisted invasion, whereas only 5% of those stored until March 1975 did so”
t0“carrots”
Claim · model-written summary
Surface dimensions of resistant carrot lesions did not increase from 33 to 55 days after inoculation.
- Taxon
- carrotsDaucus carotat0
- Outcome
- surface dimensions of resistant lesionse0
- Direction
- did not increasee0
- Qualifier
- between 33 and 55 days after inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The surface dimensions of resistant lesions did not increase between 33 and 55 days after inoculation”
t0“carrots”
Claim · model-written summary
Longer root storage before inoculation was associated with larger lesion surface dimensions and mean weights.
- Taxon
- carrotsDaucus carotat0
- Organ / stage
- rootse0
- Outcome
- surface dimensions and mean weights of lesionse0
- Direction
- largere0
- Setting
- storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the surface dimensions and mean weights of lesions (arising from inoculations performed at different times over the course of the storage season) were both larger with increasing time in storage of roots prior to inoculation”
t0“carrots”
Claim · model-written summary
Losing at least 5–10% fresh weight before inoculation reduced root ability to localize infection.
- Taxon
- carrotsDaucus carotat0
- Organ / stage
- root tissuee0
- Outcome
- ability of the root tissue to localize infectione0
- Direction
- reducede0
- Value
- 5–10%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ability of the root tissue to localize infection was reduced if the roots lost 5–10% or more of their fresh weight before inoculation, resulting progressively in susceptibility”
t0“carrots”
Claim · model-written summary
Conidial wound inoculation reduced infection relative to mycelial disk wound inoculation.
- Taxon
- carrotsDaucus carotae0
- Treatment
- wound‐inoculated using conidiae0
- Outcome
- infectione0
- Direction
- reductione0
- Comparator
- roots wound‐inoculated using mycelial diskse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with roots wound‐inoculated using mycelial disks, there was an overall reduction in infection when carrots were wound‐inoculated using conidia”
Claim · model-written summary
Inoculation onto apparently undamaged carrot surfaces reduced infection relative to mycelial disk wound inoculation.
- Taxon
- carrotsDaucus carotae0
- Treatment
- conidia or mycelial disks were inoculated onto the apparently undamaged surface of rootse0
- Outcome
- infectione0
- Direction
- reductione0
- Comparator
- roots wound‐inoculated using mycelial diskse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with roots wound‐inoculated using mycelial disks, there was an overall reduction in infection when carrots were wound‐inoculated using conidia or when conidia or mycelial disks were inoculated onto the apparently undamaged surface of roots”
The same questions in other papers
inoculation · disease · Daucus carota (carrot)Positive and negative results
3 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- negative
11 papers more in this group
See all 15 papers →mechanical · disease · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- 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.