LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 43

Search options

  1. Article ; Online: 200 years of taxonomic confusion: Sporendonema and allies.

    Kandemir, Hazal / Decock, Cony / Hernández-Restrepo, Margarita / Labuda, Roman / Houbraken, Jos / Ilkit, Macit / de Hoog, G Sybren

    Antonie van Leeuwenhoek

    2024  Volume 117, Issue 1, Page(s) 53

    Abstract: The genus Sporendonema (Gymnoascaceae, Onygenales) was introduced in 1827 with the type species S. casei for a red mould on cheese. Cheese is a consistent niche for this species. Sphaerosporium equinum is another species classified in Gymnoascaceae and ... ...

    Abstract The genus Sporendonema (Gymnoascaceae, Onygenales) was introduced in 1827 with the type species S. casei for a red mould on cheese. Cheese is a consistent niche for this species. Sphaerosporium equinum is another species classified in Gymnoascaceae and has also been reported from cheese. Recently, other habitats have been reported for both Sporendonema casei and Sphaerosporium equinum. The present study aimed to investigate the taxonomy of Sporendonema and Sphaerosporium, as well as a close neighbour, Arachniotus. Two strains of Hormiscium aurantiacum, another related cheese-associated species were also included in the analyses. Strains were evaluated in terms of macro- and micromorphology, physiology including salt tolerance, growth rate at different temperatures, casein degradation, cellulase activity, lipolytic activity, and multi-locus phylogeny with sequences of the nuclear ribosomal internal transcribed spacer region, the D1-D2 region of the large subunit and partial β-tubulin locus sequences. The results showed that the analysed species were congeneric, and the generic names Arachniotus and Sphaerosporium should be reduced to the synonymy of Sporendonema. Therefore, four new combinations as well as one lectotype and one epitype were designated in Sporendonema. Two strains attributed to Sphaerosporium equinum from substrates other than cheese were found to be phylogenetically and morphologically deviant and were introduced as a new species named Sporendonema isthmoides.
    MeSH term(s) Phylogeny ; DNA, Ribosomal Spacer ; Ascomycota
    Chemical Substances DNA, Ribosomal Spacer
    Language English
    Publishing date 2024-03-14
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 214861-4
    ISSN 1572-9699 ; 0003-6072
    ISSN (online) 1572-9699
    ISSN 0003-6072
    DOI 10.1007/s10482-024-01935-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Reflections on

    Réblová, Martina / Nekvindová, Jana / Hernández-Restrepo, Margarita

    Journal of fungi (Basel, Switzerland)

    2021  Volume 7, Issue 6

    Abstract: ... The ... ...

    Abstract The genera
    Language English
    Publishing date 2021-05-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2784229-0
    ISSN 2309-608X ; 2309-608X
    ISSN (online) 2309-608X
    ISSN 2309-608X
    DOI 10.3390/jof7060438
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Delimitation and phylogeny of

    Réblová, Martina / Nekvindová, Jana / Kolařík, Miroslav / Hernández-Restrepo, Margarita

    Mycologia

    2021  Volume 113, Issue 2, Page(s) 390–433

    Abstract: ... ...

    Abstract Dictyochaeta
    MeSH term(s) Ascomycota/classification ; Ascomycota/genetics ; Cluster Analysis ; DNA, Fungal/genetics ; DNA, Ribosomal Spacer/genetics ; Phylogeny ; RNA, Ribosomal, 28S/genetics ; RNA, Ribosomal, 5.8S/genetics ; Sequence Analysis, DNA
    Chemical Substances DNA, Fungal ; DNA, Ribosomal Spacer ; RNA, Ribosomal, 28S ; RNA, Ribosomal, 5.8S
    Language English
    Publishing date 2021-02-17
    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 10.1080/00275514.2020.1822095
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Delimitation and phylogeny of Dictyochaeta, and introduction of Achrochaeta and Tubulicolla, genera nova

    Réblová, Martina / Nekvindová, Jana / Kolařík, Miroslav / Hernández-Restrepo, Margarita

    Mycologia. 2021 Mar. 04, v. 113, no. 2

    2021  

    Abstract: Dictyochaeta (Chaetosphaeriaceae) is a phialidic dematiaceous hyphomycete with teleomorphs classified in Chaetosphaeria. It is associated with significant variability of asexual morphological traits, which led to its broad delimitation. In the present ... ...

    Abstract Dictyochaeta (Chaetosphaeriaceae) is a phialidic dematiaceous hyphomycete with teleomorphs classified in Chaetosphaeria. It is associated with significant variability of asexual morphological traits, which led to its broad delimitation. In the present study, six loci: nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS barcode), nuc 18S rDNA (18S), nuc 28S rDNA (28S), DNA-directed RNA polymerase II second largest subunit gene (RPB2), translation elongation factor 1-α (TEF1-α), and β-tubulin (TUB2), along with comparative morphological and cultivation studies, are used to reevaluate the concept of Dictyochaeta and establish species boundaries. Based on revised species, morphological characteristics of conidia (shape, septation, absence or presence of setulae), collarettes (shape), and setae (presence or absence) and an extension of the conidiogenous cell proved to be important at the generic level. The dual DNA barcoding using ITS and TEF1-α, together with TUB2, facilitated accurate identification of Dictyochaeta species. Thirteen species are accepted, of which seven are characterized in this study; an identification key is provided. It was revealed that D. fuegiana, the type species, is a complex of three distinct species including D. querna and the newly described D. stratosa. Besides, a new species, D. detriticola, and two new combinations, D. callimorpha and D. montana, are proposed. An epitype of D. montana is selected. Dictyochaeta includes saprobes on decaying wood, bark, woody fruits, and fallen leaves. Dictyochaeta is shown to be distantly related to the morphologically similar Codinaea, which is resolved as paraphyletic. Chaetosphaeria talbotii with a Dictyochaeta anamorph represents a novel lineage in the Chaetosphaeriaceae; it is segregated from Dictyochaeta, and a new genus Achrochaeta is proposed. Multigene phylogenetic analysis revealed that D. cylindrospora belongs to the Vermiculariopsiellales, and a new genus Tubulicolla is introduced.
    Keywords Chaetosphaeria ; Codinaea ; DNA barcoding ; DNA-directed RNA polymerase ; Hyphomycetes ; anamorphs ; bark ; conidia ; genes ; internal transcribed spacers ; new genus ; new species ; paraphyly ; peptide elongation factors ; saprophytes ; taxonomic keys ; teleomorphs
    Language English
    Dates of publication 2021-0304
    Size p. 390-433.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 281335-x
    ISSN 1557-2536 ; 0027-5514
    ISSN (online) 1557-2536
    ISSN 0027-5514
    DOI 10.1080/00275514.2020.1822095
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  5. Article: Phylogeny, Global Biogeography and Pleomorphism of Zanclospora

    Réblová, Martina / Kolařík, Miroslav / Nekvindová, Jana / Miller, Andrew N / Hernández-Restrepo, Margarita

    Microorganisms. 2021 Mar. 29, v. 9, no. 4

    2021  

    Abstract: Zanclospora (Chaetosphaeriaceae) is a neglected, phialidic dematiaceous hyphomycete with striking phenotypic heterogeneity among its species. Little is known about its global biogeography due to its extreme scarcity and lack of records verified by ... ...

    Abstract Zanclospora (Chaetosphaeriaceae) is a neglected, phialidic dematiaceous hyphomycete with striking phenotypic heterogeneity among its species. Little is known about its global biogeography due to its extreme scarcity and lack of records verified by molecular data. Phylogenetic analyses of six nuclear loci, supported by phenotypic data, revealed Zanclospora as highly polyphyletic, with species distributed among three distantly related lineages in Sordariomycetes. Zanclospora is a pleomorphic genus with multiple anamorphic stages, of which phaeostalagmus-like and stanjehughesia-like are newly discovered. The associated teleomorphs were previously classified in Chaetosphaeria. The generic concept is emended, and 17 species are accepted, 12 of which have been verified with DNA sequence data. Zanclospora thrives on decaying plant matter, but it also occurs in soil or as root endophytes. Its global diversity is inferred from metabarcoding data and published records based on field observations. Phylogenies of the environmental ITS1 and ITS2 sequences derived from soil, dead wood and root samples revealed seven and 15 phylotypes. The field records verified by DNA data indicate two main diversity centres in Australasia and Caribbean/Central America. In addition, environmental ITS data have shown that Southeast Asia represents a third hotspot of Zanclospora diversity. Our data confirm that Zanclospora is a rare genus.
    Keywords Chaetosphaeria ; DNA ; DNA barcoding ; Hyphomycetes ; anamorphs ; biogeography ; dead wood ; endophytes ; phenotype ; phenotypic variation ; phylotype ; polyphyly ; soil ; teleomorphs ; Australasian region ; Caribbean ; Central America ; South East Asia
    Language English
    Dates of publication 2021-0329
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms9040706
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article: New plectosphaerellaceous species from Dutch garden soil

    Giraldo, Alejandra / Crous, Pedro W / Hernández-Restrepo, Margarita

    Mycological progress. 2019 Sept., v. 18, no. 9

    2019  

    Abstract: During 2017, the Westerdijk Fungal Biodiversity Institute (WI) and the Utrecht University Museum launched a Citizen Science project. Dutch school children collected soil samples from gardens at different localities in the Netherlands, and submitted them ... ...

    Abstract During 2017, the Westerdijk Fungal Biodiversity Institute (WI) and the Utrecht University Museum launched a Citizen Science project. Dutch school children collected soil samples from gardens at different localities in the Netherlands, and submitted them to the WI where they were analysed in order to find new fungal species. Around 3000 fungal isolates, including filamentous fungi and yeasts, were cultured, preserved and submitted for DNA sequencing. Through analysis of the ITS and LSU sequences from the obtained isolates, several plectosphaerellaceous fungi were identified for further study. Based on morphological characters and the combined analysis of the ITS and TEF1-α sequences, some isolates were found to represent new species in the genera Phialoparvum, i.e. Ph. maaspleinense and Ph. rietveltiae, and Plectosphaerella, i.e. Pl. hanneae and Pl. verschoorii, which are described and illustrated here.
    Keywords biodiversity ; horticultural soils ; new species ; Plectosphaerella ; school children ; scientific illustration ; sequence analysis ; soil sampling ; taxon descriptions ; yeasts ; Netherlands
    Language English
    Dates of publication 2019-09
    Size p. 1135-1154.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 2226747-5
    ISSN 1861-8952 ; 1617-416X
    ISSN (online) 1861-8952
    ISSN 1617-416X
    DOI 10.1007/s11557-019-01511-4
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article: New insights into the systematics of

    Réblová, Martina / Hernández-Restrepo, Margarita / Fournier, Jacques / Nekvindová, Jana

    Studies in mycology

    2020  Volume 95, Page(s) 415–466

    Abstract: The newly discovered systematic placement ... ...

    Abstract The newly discovered systematic placement of
    Language English
    Publishing date 2020-03-03
    Publishing country Netherlands
    Document type Journal Article
    ISSN 0166-0616
    ISSN 0166-0616
    DOI 10.1016/j.simyco.2020.02.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Phylogeny, Global Biogeography and Pleomorphism of

    Réblová, Martina / Kolařík, Miroslav / Nekvindová, Jana / Miller, Andrew N / Hernández-Restrepo, Margarita

    Microorganisms

    2021  Volume 9, Issue 4

    Abstract: ... ...

    Abstract Zanclospora
    Language English
    Publishing date 2021-03-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms9040706
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: New insights into the systematics of Bactrodesmium and its allies and introducing new genera, species and morphological patterns in the Pleurotheciales and Savoryellales (Sordariomycetes)

    Réblová, Martina / Hernández-Restrepo, Margarita / Fournier, Jacques / Nekvindová, Jana

    Westerdijk Fungal Biodiversity Institute Studies in mycology. 2020,

    2020  

    Abstract: The newly discovered systematic placement of Bactrodesmium abruptum, the lectotype species of the genus, prompted a re-evaluation of the traditionally broadly conceived genus Bactrodesmium. Fresh material, axenic cultures and new DNA sequence data of ... ...

    Abstract The newly discovered systematic placement of Bactrodesmium abruptum, the lectotype species of the genus, prompted a re-evaluation of the traditionally broadly conceived genus Bactrodesmium. Fresh material, axenic cultures and new DNA sequence data of five gene regions of six species, i.e. B. abruptum, B. diversum, B. leptopus, B. obovatum, B. pallidum and B. spilomeum, were studied. Bactrodesmium is a strongly resolved lineage in the Savoryellales (Sordariomycetes), supported by Bayesian and Maximum Likelihood methods. The genus Bactrodesmium is emended and delimited to hyphomycetes characterised by sporodochial conidiomata, mononematous often fasciculate conidiophores, holoblastic conidiogenesis and acrogenous, solitary, dry, pigmented, transversely or rarely longitudinally septate conidia. The conidia are seceding rhexolytically, exhibiting multiple secession patterns. An identification key to 35 species accepted in Bactrodesmium is given, providing the most important diagnostic characters. Novel DNA sequence data of B. longisporum and B. stilboideum confirmed their placement in the Sclerococcales (Eurotiomycetes). For other Bactrodesmium, molecular data are available for B. cubense and B. gabretae, which position them in the Dothideomycetes and Leotiomycetes, respectively. All four species are excluded from Bactrodesmium and segregated into new genera, Aphanodesmium, Gamsomyces and Kaseifertia. Classification of 20 other species and varieties not recognised in the genus is discussed. Based on new collections of Dematiosporium aquaticum, the type species of Dematiosporium, the genus is emended to accommodate monodictys-like freshwater lignicolous fungi of the Savoryellales characterised by effuse colonies, holoblastic conidiogenous cells and dictyosporous, pigmented conidia with a pore in each cell. Study of additional new collections, cultures and DNA sequence data revealed several unknown species, which are proposed as taxonomic novelties in the Savoryellales and closely related Pleurotheciales. Ascotaiwania latericolla, Helicoascotaiwania lacustris and Pleurotheciella erumpens are described from terrestrial, lentic and lotic habitats from New Zealand and France, respectively. New combinations are proposed for Helicoascotaiwania farinosa and Neoascotaiwania fusiformis. Relationships and systematics of the Savoryellales are discussed in the light of recent phylogenies and morphological patterns newly linked with the order through cultural studies.
    Keywords Bayesian theory ; DNA ; Dothideomycetes ; Eurotiomycetes ; Hyphomycetes ; Leotiomycetes ; Sordariomycetes ; conidia ; conidiation ; conidiophores ; freshwater ; fungi ; genes ; lectotypes ; lentic systems ; lotic systems ; new combination ; new genus ; nucleotide sequences ; phylogeny ; sporodochia ; statistical analysis ; taxonomic keys ; France ; New Zealand
    Language English
    Publishing place Elsevier B.V.
    Document type Article
    Note Pre-press version
    ISSN 0166-0616
    DOI 10.1016/j.simyco.2020.02.002
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  10. Article: Citizen science project reveals high diversity in Didymellaceae (Pleosporales, Dothideomycetes)

    Hou, Lingwei / Hernández-Restrepo, Margarita / Groenewald, Johannes Zacharias / Cai, Lei / Crous, Pedro W

    MycoKeys. 2020 Mar. 10, v. 65

    2020  

    Abstract: Fungal communities play a crucial role in maintaining the health of managed and natural soil environments, which directly or indirectly affect the properties of plants and other soil inhabitants. As part of a Citizen Science Project initiated by the ... ...

    Abstract Fungal communities play a crucial role in maintaining the health of managed and natural soil environments, which directly or indirectly affect the properties of plants and other soil inhabitants. As part of a Citizen Science Project initiated by the Westerdijk Fungal Biodiversity Institute and the Utrecht University Museum, which aimed to describe novel fungal species from Dutch garden soil, the diversity of Didymellaceae, which is one of the largest families in the Dothideomycetes was investigated. A preliminary analysis of the ITS and LSU sequences from the obtained isolates allowed the identification of 148 strains belonging to the family. Based on a multi-locus phylogeny of a combined ITS, LSU, rpb2 and tub2 alignment, and morphological characteristics, 20 different species were identified in nine genera, namely Ascochyta , Calophoma , Didymella , Juxtiphoma , Nothophoma , Paraboeremia , Phomatodes , Stagonosporopsis , and Xenodidymella . Several isolates confirmed to be ubiquitous plant pathogens or endophytes were for the first time identified from soil, such as Ascochyta syringae , Calophoma clematidis -rectae , and Paraboeremia litseae . Furthermore, one new genus and 12 novel species were described from soil: Ascochyta benningiorum sp. nov., Didymella degraaffiae sp. nov., D. kooimaniorum sp. nov., Juxtiphoma kolkmaniorum sp. nov., Nothophoma brennandiae sp. nov., Paraboeremia rekkeri sp. nov., P. truiniorum sp. nov., Stagonosporopsis stuijvenbergii sp. nov., S. weymaniae sp. nov., Vandijckomycella joseae gen. nov. et sp. nov., V. snoekiae sp. nov., and Xenodidymella weymaniae sp. nov. From the results of this study, soil was revealed to be a rich substrate for members of Didymellaceae, several of which were previously known only from diseased or apparently healthy plant hosts.
    Keywords Ascochyta ; Didymella ; Stagonosporopsis ; biodiversity ; endophytes ; fungal communities ; fungi ; gardens ; host plants ; museums ; new genus ; phylogeny ; plant pathogens ; soil ; strains ; Netherlands
    Language English
    Dates of publication 2020-0310
    Size p. 49-99.
    Publishing place Pensoft Publishers
    Document type Article
    Note NAL-light
    ZDB-ID 2630648-7
    ISSN 1314-4049
    ISSN 1314-4049
    DOI 10.3897/mycokeys.65.47704
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top