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Article ; Online: Systematic placement of Lagarobasidium cymosum and description of two new species

Viner, Ilya / Spirin, Vi︠a︡cheslav / Larsson, Karl-Henrik / Miettinen, Otto

Mycologia. 2023 Jan. 02, v. 115, no. 1 p.122-134

2023

Abstract: Lagarobasidium cymosum is a rare corticioid species with characteristic morphology different from other Lagarobasidium species. We used nuc 5.8S rDNA, nuc 28S rDNA, and mt 12S rDNA loci to infer the phylogenetic position of L. cymosum. Our analyses ... ...

Abstract	Lagarobasidium cymosum is a rare corticioid species with characteristic morphology different from other Lagarobasidium species. We used nuc 5.8S rDNA, nuc 28S rDNA, and mt 12S rDNA loci to infer the phylogenetic position of L. cymosum. Our analyses suggest that it belongs to Xylodon but is not closely related to any of the other taxa referred to Lagarobasidium. Molecular and morphological information shows that the traditional concept of L. cymosum covers at least three species: Xylodon acuminatus from the Neotropics, X. cymosus from North America, and X. subtilissimus distributed in both Europe and North America. Lagarobasidium calongei is transferred to Xylodon, and DNA barcodes for Lyomyces incrustatus and Xylodon hjortstamii are published for the first time.
Keywords	DNA barcoding ; Neotropics ; new species ; phylogeny ; Europe ; North America ; Hymenochaetales ; Lyomyces ; Peniophora cymosa ; Xylodon ; 4 new taxa
Language	English
Dates of publication	2023-0102
Size	p. 122-134.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	281335-x
ISSN	1557-2536 ; 0027-5514
ISSN (online)	1557-2536
ISSN	0027-5514
DOI	10.1080/00275514.2022.2146978
Database	NAL-Catalogue (AGRICOLA)

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Article: Significance of incongruent DNA loci in the taxonomy of wood-decaying Basidioradulum radula

Viner, Ilya / Kokaeva, Lyudmila / Spirin, Viacheslav / Miettinen, Otto

Mycologia. 2021 Sept. 03, v. 113, no. 5

2021

Abstract: Modern taxonomic studies of Agaricomycetes rely on the integrative analyses of morphology, environmental data, geographic distribution, and usually several DNA loci. However, sampling and selection of DNA loci for the analyses are commonly shallow. In ... ...

Abstract	Modern taxonomic studies of Agaricomycetes rely on the integrative analyses of morphology, environmental data, geographic distribution, and usually several DNA loci. However, sampling and selection of DNA loci for the analyses are commonly shallow. In this study, we suggest minimal numbers of necessary specimens to sample and DNA loci to analyze in order to prevent inadequate taxonomic decisions in species groups with minor morphological and genealogical differences. We sampled four unlinked nuclear DNA gene regions (nuc rDNA ITS1-5.8S-ITS2, gh63, rpb2, and tef1) to revise the systematics of a common wood-decaying species Basidioradulum radula (Hymenochaetales) on an intercontinental set of specimens collected in the Northern Hemisphere. The DNA loci analyzed violate the genealogical concordance phylogenetic species recognition principles, thus confirming a single-species interpretation. We conclude that Hyphodontia syringae is a younger synonym of B. radula.
Keywords	Hyphodontia ; genes ; geographical distribution ; nuclear genome ; taxonomy
Language	English
Dates of publication	2021-0903
Size	p. 995-1008.
Publishing place	Taylor & Francis
Document type	Article
ZDB-ID	281335-x
ISSN	1557-2536 ; 0027-5514
ISSN (online)	1557-2536
ISSN	0027-5514
DOI	10.1080/00275514.2021.1930449
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Article ; Online: Systematic placement of

Viner, Ilya / Spirin, Viacheslav / Larsson, Karl-Henrik / Miettinen, Otto

Mycologia

2022 Volume 115, Issue 1, Page(s) 122–134

Abstract: Lagarobasidium ... ...

Abstract	Lagarobasidium cymosum
MeSH term(s)	Phylogeny ; DNA, Ribosomal Spacer/genetics ; DNA, Fungal/genetics ; DNA, Ribosomal/genetics ; North America ; RNA, Ribosomal, 28S/genetics ; Sequence Analysis, DNA
Chemical Substances	DNA, Ribosomal Spacer ; DNA, Fungal ; DNA, Ribosomal ; RNA, Ribosomal, 28S
Language	English
Publishing date	2022-12-08
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	281335-x
ISSN	1557-2536 ; 0027-5514
ISSN (online)	1557-2536
ISSN	0027-5514
DOI	10.1080/00275514.2022.2146978
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Article ; Online: Landscape context and substrate characteristics shape fungal communities of dead spruce in urban and semi-natural forests.

Korhonen, Aku / Miettinen, Otto / Kotze, Johan D / Hamberg, Leena

Environmental microbiology

2022 Volume 24, Issue 8, Page(s) 3451–3462

Abstract: Urban green areas are becoming increasingly recognized for their biodiversity potential. However, little is known about how urbanization shapes cryptic species communities, such as those residing in deadwood. In this study, we investigated downed Norway ... ...

Abstract	Urban green areas are becoming increasingly recognized for their biodiversity potential. However, little is known about how urbanization shapes cryptic species communities, such as those residing in deadwood. In this study, we investigated downed Norway spruce trunks at intermediate stages of decay, in urban and semi-natural forests in southern Finland. To understand the interconnections between landscape context, deadwood characteristics and wood-inhabiting fungal communities, we studied structural characteristics, surface epiphyte cover and internal moisture and temperature conditions of the tree trunks, and fungal communities residing in the wood. Our findings showed that urban tree trunks had less epiphyte cover and lower moisture than trunks in semi-natural forests. Overall, urban forests provide less favourable habitats for a majority of the dominant wood-inhabiting fungal species and for red-listed species as a group. Yet, 33% of urban trunks hosted at least one red-listed species. While these landscape-scale effects may be driven by local climatic conditions as well as contingencies related to available species pools, our results also highlight the significance of substrate-scale variability of deadwood in shaping wood-inhabiting fungal communities. We show that epiphyte cover is a significant driver or indicator of these small-scale dynamic processes in deadwood.
MeSH term(s)	Biodiversity ; Ecosystem ; Forests ; Fungi/genetics ; Mycobiome ; Picea/microbiology ; Trees/microbiology ; Wood/microbiology
Language	English
Publishing date	2022-01-26
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2020213-1
ISSN	1462-2920 ; 1462-2912
ISSN (online)	1462-2920
ISSN	1462-2912
DOI	10.1111/1462-2920.15903
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Article ; Online: Significance of incongruent DNA loci in the taxonomy of wood-decaying

Viner, Ilya / Kokaeva, Lyudmila / Spirin, Viacheslav / Miettinen, Otto

Mycologia

2021 Volume 113, Issue 5, Page(s) 995–1008

Abstract	Modern taxonomic studies of Agaricomycetes rely on the integrative analyses of morphology, environmental data, geographic distribution, and usually several DNA loci. However, sampling and selection of DNA loci for the analyses are commonly shallow. In this study, we suggest minimal numbers of necessary specimens to sample and DNA loci to analyze in order to prevent inadequate taxonomic decisions in species groups with minor morphological and genealogical differences. We sampled four unlinked nuclear DNA gene regions (nuc rDNA ITS1-5.8S-ITS2,
MeSH term(s)	Basidiomycota ; DNA, Fungal/genetics ; DNA, Ribosomal/genetics ; DNA, Ribosomal Spacer/genetics ; Phylogeny ; Sequence Analysis, DNA ; Wood
Chemical Substances	DNA, Fungal ; DNA, Ribosomal ; DNA, Ribosomal Spacer
Language	English
Publishing date	2021-07-08
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	281335-x
ISSN	1557-2536 ; 0027-5514
ISSN (online)	1557-2536
ISSN	0027-5514
DOI	10.1080/00275514.2021.1930449
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Polypore fungi as a flagship group to indicate changes in biodiversity - a test case from Estonia.

Runnel, Kadri / Miettinen, Otto / Lõhmus, Asko

IMA fungus

2021 Volume 12, Issue 1, Page(s) 2

Abstract: Polyporous fungi, a morphologically delineated group of Agaricomycetes (Basidiomycota), are considered well studied in Europe and used as model group in ecological studies and for conservation. Such broad interest, including widespread sampling and DNA ... ...

Abstract	Polyporous fungi, a morphologically delineated group of Agaricomycetes (Basidiomycota), are considered well studied in Europe and used as model group in ecological studies and for conservation. Such broad interest, including widespread sampling and DNA based taxonomic revisions, is rapidly transforming our basic understanding of polypore diversity and natural history. We integrated over 40,000 historical and modern records of polypores in Estonia (hemiboreal Europe), revealing 227 species, and including Polyporus submelanopus and P. ulleungus as novelties for Europe. Taxonomic and conservation problems were distinguished for 13 unresolved subgroups. The estimated species pool exceeds 260 species in Estonia, including at least 20 likely undescribed species (here documented as distinct DNA lineages related to accepted species in, e.g., Ceriporia, Coltricia, Physisporinus, Sidera and Sistotrema). Four broad ecological patterns are described: (1) polypore assemblage organization in natural forests follows major soil and tree-composition gradients; (2) landscape-scale polypore diversity homogenizes due to draining of peatland forests and reduction of nemoral broad-leaved trees (wooded meadows and parks buffer the latter); (3) species having parasitic or brown-rot life-strategies are more substrate-specific; and (4) assemblage differences among woody substrates reveal habitat management priorities. Our update reveals extensive overlap of polypore biota throughout North Europe. We estimate that in Estonia, the biota experienced ca. 3-5% species turnover during the twentieth century, but exotic species remain rare and have not attained key functions in natural ecosystems. We encourage new regional syntheses on long studied fungal groups to obtain landscape-scale understanding of species pools, and for elaborating fungal indicators for biodiversity assessments.
Language	English
Publishing date	2021-01-18
Publishing country	England
Document type	Journal Article
ZDB-ID	2666116-0
ISSN	2210-6359 ; 2210-6340
ISSN (online)	2210-6359
ISSN	2210-6340
DOI	10.1186/s43008-020-00050-y
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Xylodon lanatus complex and other additions to Xylodon

Yurchenko, Eugene / Riebesehl, Janett / Viner, Ilya / Motato-Vásquez, Viviana / Miettinen, Otto

2024

Abstract: Xylodon lanatus and closely related species were studied with molecular and morphological means. This species complex contains six species, two of which we describe as new. Species in the complex have minutely odontioid hymenophore projections that ... ...

Abstract	Xylodon lanatus and closely related species were studied with molecular and morphological means. This species complex contains six species, two of which we describe as new. Species in the complex have minutely odontioid hymenophore projections that consist of encrusted, firm-walled hyphae and ellipsoid spores. We assign an epitype for X. lanatus, for which ITS and 28S rDNA sequences were obtained, and amend the concept of X. pseudolanatus. The two new species, both well supported in our phylogenetic analyses, are X. afromontanus, found in Eastern Africa, and X. mantiqueirensis, found in southeastern Brazil. We show the phylogenetic affinity of X. echinatus with X. lanatus for the first time, and according to new data the range of the previous species extends to Sunda Archipelago. We provide scanning electron microscopy illustrations of the crystalline deposits on projecting hyphae for the above-mentioned species. The sixth member of the complex is X. kunmingensis. Outside the X. lanatus complex, we report additional sequenced specimens of X. hyphodontinus. A new species, X. neotropicus from South America, related to X. hyphodontinus, is described. We also describe X. gloeocystidiifer from Ecuador as new species. It is characterised by globose/broadly ellipsoid spores, gloeocystidia and capitate cystidia with a resinous cap. The heterotypic names Hyphodontia yunnanensis and Xylodon yunnanensis are considered. We suggest the previous one is a synonym of the latter.
Keywords	article ; Text ; ddc:630 ; Basidiomycota -- Bayesian phylogram -- Corticioid fungi -- Crystal morphology -- Hymenochaetales
Subject code	590
Language	English
Publisher	Springer Science and Business Media LLC
Publishing country	de
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Steccherinum filiferum sp. nov. from the neotropics, and a new combination for Odontia laxa

Yurchenko, Eugene / Larsson, Karl-Henrik / Riebesehl, Janett / Miettinen, Otto

2023

Abstract: The new species Steccherinum filiferum, from Puerto Rico and Amazonian rainforests of Ecuador, is described. It is characterized by effused basidiomata with hyphal cords, a monomitic hyphal system, simple-septate hyphae, and minute hymenophoral aculei ... ...

Abstract	The new species Steccherinum filiferum, from Puerto Rico and Amazonian rainforests of Ecuador, is described. It is characterized by effused basidiomata with hyphal cords, a monomitic hyphal system, simple-septate hyphae, and minute hymenophoral aculei with encrusted, septate, Candelabrochaete-like cystidia. Because Odontia laxa [≡ Odonticium laxum] is morphologically and phylogenetically similar to S. filiferum, the new combination Steccherinum laxum is proposed, after studying its type. Scanning electron microscopy studies show that S. filiferum and S. laxum can be differentiated by crystal size and arrangement on the cystidia. A key to the Steccherinum species with simple-septate generative hyphae is provided.
Keywords	article ; Text ; ddc:630 ; Caribbean -- palm leaves -- Polyporales -- septocystidia -- Steccherinaceae
Language	English
Publisher	Mycotaxon, Ltd.
Publishing country	de
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Landscape context and substrate characteristics shape fungal communities of dead spruce in urban and semi‐natural forests

Korhonen, Aku / Miettinen, Otto / Kotze, Johan D. / Hamberg, Leena

Environmental microbiology. 2022 Aug., v. 24, no. 8

2022

Abstract	Urban green areas are becoming increasingly recognized for their biodiversity potential. However, little is known about how urbanization shapes cryptic species communities, such as those residing in deadwood. In this study, we investigated downed Norway spruce trunks at intermediate stages of decay, in urban and semi‐natural forests in southern Finland. To understand the interconnections between landscape context, deadwood characteristics and wood‐inhabiting fungal communities, we studied structural characteristics, surface epiphyte cover and internal moisture and temperature conditions of the tree trunks, and fungal communities residing in the wood. Our findings showed that urban tree trunks had less epiphyte cover and lower moisture than trunks in semi‐natural forests. Overall, urban forests provide less favourable habitats for a majority of the dominant wood‐inhabiting fungal species and for red‐listed species as a group. Yet, 33% of urban trunks hosted at least one red‐listed species. While these landscape‐scale effects may be driven by local climatic conditions as well as contingencies related to available species pools, our results also highlight the significance of substrate‐scale variability of deadwood in shaping wood‐inhabiting fungal communities. We show that epiphyte cover is a significant driver or indicator of these small‐scale dynamic processes in deadwood.
Keywords	Picea abies ; biodiversity ; cryptic species ; dead wood ; epiphytes ; fungi ; landscapes ; temperature ; trees ; urbanization ; wood ; Finland
Language	English
Dates of publication	2022-08
Size	p. 3451-3462.
Publishing place	John Wiley & Sons, Inc.
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	2020213-1
ISSN	1462-2920 ; 1462-2912
ISSN (online)	1462-2920
ISSN	1462-2912
DOI	10.1111/1462-2920.15903
Database	NAL-Catalogue (AGRICOLA)

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Article: Impacts of holmium and lithium to the growth of selected basidiomycetous fungi and their ability to degrade textile dyes

Kähkönen, Mika A / Miettinen, Otto / Hilden, Kristiina S

3 Biotech. 2020 Aug., v. 10, no. 8

2020

Abstract: The impacts of Ho and Li (0, 10, 50, 200 mg/L) were tested towards the growth of four basidiomycetous fungal species, their ability to decolorise synthetic dyes (Reactive Green 19, Reactive Orange 16, Reactive Black 5), and produce oxidative enzymes. All ...

Abstract	The impacts of Ho and Li (0, 10, 50, 200 mg/L) were tested towards the growth of four basidiomycetous fungal species, their ability to decolorise synthetic dyes (Reactive Green 19, Reactive Orange 16, Reactive Black 5), and produce oxidative enzymes. All species; Agrocybe dura, Skeletocutis biguttulata, Exidia saccharina and Galerina paludosa; grew with and without supplemented Ho or Li. The growth of S. biguttulata was the most tolerant species towards Ho or Li (200 mg/L), whereas the growth of G. paludosa was the most sensitive of the studied species to both 200 mg Ho or Li/L. All fungi oxidized ABTS [2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid)] forming colour zone on plate tests indicating production of lignin modifying laccase enzyme. A. dura and G. paludosa, formed black MnO₂ zone in Mn²⁺ plates, which indicates the production of manganese peroxidase (MnP). A. dura and G. paludosa decolorised Reactive Black 5 indicating the production of versatile peroxide (VP) enzyme. Our study presents two new candidate species able to produce VP. A. dura was capable of decolorising all tested synthetic dyes in the presence of Ho or Li (0–200 mg/L) suggesting that this fungus is a promising species for bioremediation of multi dye-containing wastes.
Keywords	Agrocybe ; Exidia ; Galerina ; bioremediation ; color ; decolorization ; fabrics ; fungi ; holmium ; laccase ; lignin ; lithium ; manganese peroxidase
Language	English
Dates of publication	2020-08
Size	p. 357.
Publishing place	Springer International Publishing
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2600522-0
ISSN	2190-5738 ; 2190-572X
ISSN (online)	2190-5738
ISSN	2190-572X
DOI	10.1007/s13205-020-02355-6
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