Arboricolonus simplex gen. et sp. nov. and novelties in Cadophora, Minutiella and Proliferodiscus from Prunus wood in Germany

Bien, Steffen; Damm, Ulrike

doi:10.3897/mycokeys.63.46836

Cited by 15 publications

(14 citation statements)

References 83 publications

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“…By Day et al (2012) combining Cadophora hiberna Bills into Phialocephala, and by Fehrer et al (2019) combining Cadophora finlandica into Hyaloscypha, the genus apparently became monophyletic. This was supported by recent studies (Linnakoski et al 2018;Bien and Damm 2020) in which phylogenies were biased by excluding genera closely related to Cadophora. The final dataset assembled in our study not only expands several times the clade C of Day et al (2012), but also provides a clear support for the paraphyly of Cadophora.…”

Section: Taxonomysupporting

confidence: 69%

“…However, the phialidic synanamorph of Collembolispora barbata Marvanová, Pascoal & Cássio provides a morphological connection to members of Cadophora. The first Cadophora species was described as a woodcolonizing fungus, and today species in the genus are still frequently isolated from this substrate (Lagerberg et al 1927;Bills 2004;Gramaje et al 2011Gramaje et al , 2015Bien and Damm 2020). Our results support such a substrate preference for species of Cadophora sensu stricto, but show a widespread ability to colonize living plant hosts in the remaining clades-particularly roots as a result of the focus of this study.…”

Section: Ecological Preferencessupporting

confidence: 67%

“…Interestingly, the same gene may have different taxonomic value for different Cadophora clades. Whilst Walsh et al (2018) found clear differentiation of C. interclivum and C. meredithiae based on the β-tubulin gene, Bien and Damm (2020) suspected the same gene of having paralogues in C. bubakii, C. obscura Nannf. and C. viticola Gramaje, L. Mostert & Armengol.…”

Section: Taxonomymentioning

confidence: 99%

“…This strain was isolated from blue-stained wood in Sweden, just like the species type (Lagerberg et al 1927), andSchol-Schwartz (1970) noted no morphological differences between both cultures. Later studies used this strain as representative of C. fastigiata too (Bien and Damm 2020) or even have considered it erroneously derived from the type (Travadon et al 2015;Crous et al 2017;Linnakoski et al 2018).…”

Section: Taxonomymentioning

confidence: 99%

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Brassicaceous roots as an unexpected diversity hot-spot of helotialean endophytes

Maciá‐Vicente

Piepenbring

Koukol

2020

Preprint

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A high number of fungal strains were isolated from roots of Brassicaceae species all over Europe, resulting in an unexpectedly rich collection of Cadophora species. These isolates enable us to present a new and comprehensive view of the ecological, morphological, and phylogenetic traits of rootinhabiting members of this helotialean genus. We provide phylogenetic placement of all of our isolates based on a four-gene dataset, analyze their phenotypic traits in relation to their phylogenetic relationships, and infer the potential distribution ranges of the species by sequence comparisons with available databases. We consider seven well supported phylogenetic lineages as species new to science. Six further lineages probably also represent new species but remain undescribed due to the lack of diagnostic morphological characters. Our results show that Cadophora, as currently circumscribed, is paraphyletic and encompasses a broad spectrum of morphologies and lifestyles.Among the new species, only two (C. ferruginea and C. constrictospora) form phialides and conidia typical of Cadophora, three species (C. echinata, C. gamsii and C. variabilis) produce chains of swollen hyphal segments that may function as holoblastic conidia, and one species (C. fascicularis) produces chains of holoblastic ramoconidia and conidia. Ancestral state reconstruction analysis suggests that phialidic conidiogenesis evolved several times in Cadophora sensu lato from a putatively holoblastic common ancestor. Most Cadophora lineages are rare as estimated from the availability of sequence data, in spite of having relatively wide distribution ranges, whereas five lineages may represent endemic relationships given their restricted distributions. Our dataset, probably the most comprehensive available for Cadophora, nevertheless shows knowledge gaps concerning the phylogenetic relationships within this genus and highlights a need for further investigation.

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Section: Taxonomysupporting

confidence: 69%

Section: Ecological Preferencessupporting

confidence: 67%

Section: Taxonomymentioning

confidence: 99%

Section: Taxonomymentioning

confidence: 99%

See 2 more Smart Citations

Brassicaceous roots as an unexpected diversity hot-spot of helotialean endophytes

Maciá‐Vicente

Piepenbring

Koukol

2020

Preprint

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“…The teleomorph stage is unknown for most Cadophora species, with the exception of several species producing mollisioid apothecia (Harrington and McNew 2003;Day et al 2012;Pärtel et al 2017;Ekanayaka et al 2019). Further recent studies revealed new and hitherto overlooked species colonizing wood necroses (Bien and Damm 2020) and a high phenotypic diversity in the genus mirrored in new discoveries including the psychrotrophic C. antarctica isolated from Antarctic soil (Crous et al 2017); C. margaritata Linnakoski, Lasarov & Oghenekaro, associated with the large poplar longhorn beetle (Linnakoski et al 2018); and C. helianthi Molinero-Ruiz, Martín-Sanz, Berlanas & Gramaje, isolated from necrotic tissues in a wilting Helianthus annuus L. plant (Crous et al 2019). Due to only subtle differences in morphology from other Phialophora-like fungi, molecular data are essential for species delimitation and identi cation in the genus.…”

Section: Introductionmentioning

confidence: 99%

Brassicaceous roots as an unexpected diversity hot-spot of helotialean endophytes

Maciá‐Vicente

Piepenbring

Koukol

2020

Preprint

View full text Add to dashboard Cite

A high number of fungal strains were isolated from roots of Brassicaceae species collected across western and southern Europe, resulting in an unexpectedly rich collection of Cadophora species. These isolates enable us to present a new and comprehensive view of the ecological, morphological, and phylogenetic traits of root-inhabiting members of this helotialean genus. We provide phylogenetic placement of all of our isolates based on a four-gene dataset, analyze their phenotypic traits in relation to their phylogenetic relationships, and infer the potential distribution ranges of the species by sequence comparisons with available databases. We consider seven well supported phylogenetic lineages as species new to science. Six further lineages probably also represent new species but remain undescribed due to the lack of diagnostic morphological characters. Our results show that Cadophora , as currently circumscribed, is paraphyletic and encompasses a broad spectrum of morphologies and lifestyles. Among the new species, only two ( C. ferruginea and C. constrictospora ) form phialides and conidia typical of Cadophora , three species ( C. echinata , C. gamsii and C. variabilis ) produce chains of swollen hyphal segments that may function as holoblastic conidia, and one species ( C. fascicularis ) produces chains of holoblastic ramoconidia and conidia. Ancestral state reconstruction analysis suggests that phialidic conidiogenesis evolved several times in Cadophora sensu lato from a putatively holoblastic common ancestor. Most Cadophora lineages are rare as estimated from the availability of sequence data, in spite of having relatively wide distribution ranges, whereas five lineages may represent endemic relationships given their restricted distributions. Our dataset, probably the most comprehensive available for Cadophora , nevertheless shows knowledge gaps concerning the phylogenetic relationships within this genus and highlights a need for further investigation.

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Prunus trees in Germany—a hideout of unknown fungi?

Bien

Damm

2020

Mycol Progress

Self Cite

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Prunus belongs to the economically most important genera of fruit crops in Germany. Although wood pathogens possess the capability to damage the host substantially, the knowledge of the fungal pathogenic community and the mycobiome of Prunus wood in general is low. During a survey in important fruit production areas in Germany, branches with symptoms of fungal infection were sampled in Prunus avium, P. cerasus and P. domestica orchards, and 1018 fungal isolates were obtained primarily from the transition zone of symptomatic to non-symptomatic wood. By a combination of blastn searches and phylogenetic analyses based on ITS and LSU sequences with a strong focus on reliable reference data, a diversity of 172 fungal taxa belonging to Ascomycota, Basidiomycota and Mucoromycota were differentiated. The majority of the strains belonged to three classes of Ascomycota, namely Sordariomycetes, Leotiomycetes and Dothideomycetes. The dominant species were Aposphaeria corallinolutea (Dothideomycetes) and Pallidophorina paarla (Leotiomycetes) that were isolated more than a hundred times each, while all other taxa were isolated ≤ 30 times. Only part of them could be identified to species level. Because of the high plasticity of species boundaries, the identification certainty was divided into categories based on nucleotide differences to reference sequences. In total, 82 species were identified with high and 20 species with low (cf.) certainty. Moreover, about 70 species could not be assigned to a known species, which reveals Prunus wood to represent a habitat harbouring high numbers of potentially new species, even in a well-explored region like Germany.

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Arboricolonus simplex gen. et sp. nov. and novelties in Cadophora, Minutiella and Proliferodiscus from Prunus wood in Germany

Cited by 15 publications

References 83 publications

Brassicaceous roots as an unexpected diversity hot-spot of helotialean endophytes

Brassicaceous roots as an unexpected diversity hot-spot of helotialean endophytes

Brassicaceous roots as an unexpected diversity hot-spot of helotialean endophytes

Prunus trees in Germany—a hideout of unknown fungi?

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