Abstract
This study reports on the acquisition of significant susceptibility of clonal rhubarb, produced by micropropagation, to leaf and petiole spot disease when compared to conventionally propagated material. This alteration in response to pathogens accompanies previously reported reductions in growth rate and poor winter survival. The two fungi isolated from lesions of both leaves and petioles have been identified as Ascochyta rhei and Romularia rhei, the former not previously having been reported in this role. Both fungi are able to cause spot infection of leaves and petioles of the micropropagated material. The effect of temperature on leaf infection from both fungi showed an optimum near 25 degrees C for A. rhei and close to 20 degrees C for R. rhei.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Micropropagated clonal rhubarb showed significantly greater susceptibility to leaf and petiole spot than conventionally propagated material.
- Taxon
- rhubarb
Rheum rhabarbarume0 - Material
- clonal rhubarbe0
- Outcome
- susceptibility of clonal rhubarb, produced by micropropagation, to leaf and petiole spot diseasee0
- Comparator
- conventionally propagated materiale0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant susceptibility of clonal rhubarb, produced by micropropagation, to leaf and petiole spot disease when compared to conventionally propagated material”
Claim · model-written summary
Ascochyta rhei was identified from leaf and petiole lesions.
- Taxon
- rhubarbRheum rhabarbarumt0
- Organ / stage
- leaves and petiolese0
- Interactor
- Ascochyta rheiDidymella rheie0pathogen
- Outcome
- identified as Ascochyta rheie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The two fungi isolated from lesions of both leaves and petioles have been identified as Ascochyta rhei and Romularia rhei”
t0“rhubarb”
Claim · model-written summary
Romularia rhei was identified from leaf and petiole lesions.
- Taxon
- rhubarbRheum rhabarbarumt0
- Organ / stage
- leaves and petiolese0
- Interactor
- Romularia rheie0pathogen
- Outcome
- Romularia rheie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The two fungi isolated from lesions of both leaves and petioles have been identified as Ascochyta rhei and Romularia rhei”
t0“rhubarb”
Claim · model-written summary
Ascochyta rhei had not previously been reported in this disease role.
- Taxon
- rhubarbRheum rhabarbarumt0
- Interactor
- Ascochyta rheiDidymella rheie0pathogen
- Outcome
- not previously having been reported in this rolee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ascochyta rhei and Romularia rhei, the former not previously having been reported in this role”
t0“rhubarb”
Claim · model-written summary
Ascochyta rhei caused spot infection of micropropagated rhubarb leaves and petioles.
- Taxon
- rhubarbRheum rhabarbarumt0
- Material
- micropropagated materiale0
- Interactor
- Ascochyta rheiDidymella rheie1pathogen
- Outcome
- spot infection of leaves and petiolese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both fungi are able to cause spot infection of leaves and petioles of the micropropagated material”
e1“Ascochyta rhei”
t0“rhubarb”
Claim · model-written summary
Romularia rhei caused spot infection of micropropagated rhubarb leaves and petioles.
- Taxon
- rhubarbRheum rhabarbarumt0
- Material
- micropropagated materiale0
- Interactor
- Romularia rheie1pathogen
- Outcome
- spot infection of leaves and petiolese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both fungi are able to cause spot infection of leaves and petioles of the micropropagated material”
e1“Romularia rhei”
t0“rhubarb”
Claim · model-written summary
Leaf infection by A. rhei was optimal near 25 degrees C.
- Taxon
- rhubarbRheum rhabarbarumt0
- Interactor
- A. rheiDidymella rheie0pathogen
- Outcome
- an optimume0
- Value
- 25 degrees Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an optimum near 25 degrees C for A. rhei and close to 20 degrees C for R. rhei”
t0“rhubarb”
Claim · model-written summary
Leaf infection by R. rhei was optimal close to 20 degrees C.
- Taxon
- rhubarbRheum rhabarbarumt0
- Interactor
- R. rheie0pathogen
- Outcome
- an optimume0
- Value
- 20 degrees Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an optimum near 25 degrees C for A. rhei and close to 20 degrees C for R. rhei”
t0“rhubarb”