Abstract
Species of the genus Coniochaeta (anamorph: Lecythophora) are known as pathogens of woody hosts, but can also cause opportunistic human infections. Several fungi with conidial stages resembling Lecythophora were isolated from necrotic wood samples of Prunus trees in South Africa. In order to reveal their phylogenetic relationships, these fungi were studied on a morphological and molecular (5.8S nrDNA, ITS-1, ITS-2, GAPDH, EF-1alpha, 28S nrDNA, 18S nrDNA) basis. Some of the isolates were identified as Coniochaeta (Sordariomycetes), including C. velutina and two new species, C. africana and C. prunicola. The majority of the isolates, however, formed pycnidial or pseudopycnidial synanamorphs and were not closely related to Coniochaeta. According to their 28S nrDNA phylogeny, they formed two distinct groups, one of which was closely related to Helotiales (Leotiomycetes). The new genus Collophora is proposed, comprising five species that frequently occur in necrotic peach and nectarine wood, namely Co. africana, Co. capensis, Co. paarla, Co. pallida and Co. rubra. The second group was closely related to Phaeomoniella chlamydospora (Eurotiomycetes), occurring mainly in plum wood. Besides P. zymoides occurring on Prunus salicina, four new species are described, namely P. dura, P. effusa, P. prunicola and P. tardicola. In a preliminary inoculation study, pathogenicity was confirmed for some of the new species on apricot, peach or plum wood.
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Claims 4
Claim · model-written summary
Some isolates from Prunus wood were identified as Coniochaeta, including C. velutina and two new species, C. africana and C. prunicola.
- Interactor
- Coniochaeta
Coniochaetae0other - Outcome
- identified as Coniochaetae0
PrunusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wood necroses of Prunus trees”
e0“Some of the isolates were identified as Coniochaeta (Sordariomycetes), including C. velutina and two new species, C. africana and C. prunicola”
Claim · model-written summary
The new genus Collophora, with five species, frequently occurs in necrotic peach and nectarine wood.
- Taxon
- peach and nectarine
Prunus persicaPrunus persica var. nucipersicae1 - Interactor
- CollophoraCollophorae1other
- Outcome
- frequently occure1
- Value
- five speciese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wood necroses of Prunus trees”
e1“The new genus Collophora is proposed, comprising five species that frequently occur in necrotic peach and nectarine wood”
Claim · model-written summary
The Phaeomoniella chlamydospora-related group occurs mainly in plum wood.
- Taxon
- plum
Prunus domesticae2 - Interactor
- Phaeomoniella chlamydosporaPhaeomoniella chlamydosporae2other
- Outcome
- occurring mainlye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wood necroses of Prunus trees”
e2“The second group was closely related to Phaeomoniella chlamydospora (Eurotiomycetes), occurring mainly in plum wood”
Claim · model-written summary
Pathogenicity was confirmed for some of the new species on apricot, peach or plum wood in a preliminary inoculation study.
- Taxon
- apricot, peach or plumPrunus domesticaPrunus persica
Prunus armeniacae3 - Treatment
- preliminary inoculation studye3
- Outcome
- pathogenicitye3
- Qualifier
- for some of the new speciese3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wood necroses of Prunus trees”
e3“In a preliminary inoculation study, pathogenicity was confirmed for some of the new species on apricot, peach or plum wood”
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