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G S Hoog - One of the best experts on this subject based on the ideXlab platform.
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phylogeny and ecology of the ubiquitous saprobe Cladosporium sphaerospermum with descriptions of seven new species from hypersaline environments
Studies in Mycology, 2007Co-Authors: Polona Zalar, G S Hoog, Hansjosef Schroers, P W Crous, J Z Groenewald, Nina GundecimermanAbstract:Saprobic Cladosporium isolates morphologically similar to C. sphaerospermum are phylogenetically analysed on the basis of DNA sequences of the ribosomal RNA gene cluster, including the internal transcribed spacer regions ITS1 and ITS2, the 5.8S rDNA (ITS) and the small subunit (SSU) rDNA as well as β-tubulin and actin gene introns and exons. Most of the C. sphaerospermum-like species show halotolerance as a recurrent feature. Cladosporium sphaerospermum, which is characterised by almost globose conidia, is redefined on the basis of its ex-neotype culture. Cladosporium dominicanum, C. psychrotolerans, C. velox, C. spinulosum and C. halotolerans, all with globoid conidia, are newly described on the basis of phylogenetic analyses and cryptic morphological and physiological characters. Cladosporium halotolerans was isolated from hypersaline water and bathrooms and detected once on dolphin skin. Cladosporium dominicanum and C. velox were isolated from plant material and hypersaline water. Cladosporium psychrotolerans, which grows well at 4 °C but not at 30 °C, and C. spinulosum, having conspicuously ornamented conidia with long digitate projections, are currently only known from hypersaline water. We also newly describe C. salinae from hypersaline water and C. fusiforme from hypersaline water and animal feed. Both species have ovoid to ellipsoid conidia and are therefore reminiscent of C. herbarum. Cladosporium langeronii (= Hormodendrum langeronii) previously described as a pathogen on human skin, is halotolerant but has not yet been recorded from hypersaline environments.
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biodiversity in the Cladosporium herbarum complex davidiellaceae capnodiales with standardisation of methods for Cladosporium taxonomy and diagnostics
Studies in Mycology, 2007Co-Authors: K Schube, G S Hoog, J Z Groenewald, Ja Dijksterhuis, M Starink, C F Hill, Polona Zala, P W CrousAbstract:The Cladosporium herbarum complex comprises five species for which Davidiella teleomorphs are known. Cladosporium herbarum s. str. (D. tassiana), C. macrocarpum (D. macrocarpa) and C. bruhnei (D. allicina) are distinguishable by having conidia of different width, and by teleomorph characters. Davidiella variabile is introduced as teleomorph of C. variabile, a homothallic species occurring on Spinacia, and D. macrospora is known to be the teleomorph of C. iridis on Iris spp. The C. herbarum complex combines low molecular distance with a high degree of clonal or inbreeding diversity. Entities differ from each other by multilocus sequence data and by phenetic differences, and thus can be interpreted to represent individual taxa. Isolates of the C. herbarum complex that were formerly associated with opportunistic human infections, cluster with C. bruhnei. Several species are newly described from hypersaline water, namely C. ramotenellum, C. tenellum, C. subinflatum, and C. herbaroides. Cladosporium pseudiridis collected from Iris sp. in New Zealand, is also a member of this species complex and shown to be distinct from C. iridis that occurs on this host elsewhere in the world. A further new species from New Zealand is C. sinuosum on Fuchsia excorticata. Cladosporium antarcticum is newly described from a lichen, Caloplaca regalis, collected in Antarctica, and C. subtilissimum from grape berries in the U.S.A., while the new combination C. ossifragi, the oldest valid name of the Cladosporium known from Narthecium in Europe, is proposed. Standard protocols and media are herewith proposed to facilitate future morphological examination of Cladosporium spp. in culture, and neotypes or epitypes are proposed for all species treated.
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case report isolation of Cladosporium cladosporioides from cerebrospinal fluid fallbericht isolierung von Cladosporium cladosporioides aus liquor
Mycoses, 2002Co-Authors: A S Kantarcioglu, Ayhan Yucel, G S HoogAbstract:Summary. Cladosporium cladosporioides was isolated from three subsequent cerebrospinal fluid specimens and from a brain biopsy specimen of a human patient. Susceptibility testing of the isolate was performed against seven antifungal agents. Zusammenfassung. Cladosporium cladosporioides wurde aus verschiedene Liquorproben und ebenfalls aus einer Hirnbiopsie-Probe eines menschlichen Patienten isoliert. Empfindlichkeitstestung
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phylogenetic relationships of human pathogenic Cladosporium xylohypha species inferred from partial ls rrna sequences
Medical Mycology, 1995Co-Authors: F. Masclaux, G S Hoog, E Gueho, Richard ChristenAbstract:The controversy about the appropriate taxonomic placement of agents of subcutaneous and systemic mycoses in either Cladosporium or Xylohypha, both genera characterized by conidia being produced in dry, acropetal chains, was addressed with partial sequencing of LS ribosomal RNA. Observation of catenate anamorphs in species of Capronia (Ascomycotina, Herpotrichiellaceae), a genus which also has anamorphs in Exophiala, suggested the possibility of a close interrelationship of all human-associated taxa. To test this hypothesis, partial sequences of 43 strains of Cladosporium/Xylohypha were analysed. Human-pathogenic and saprophytic Cladosporium species were found to be phylogenetically distinct from each other and, on the basis of known teleomorph relationships, were considered to be anamorphs of Herpotrichiellaceae and Mycosphaerellaceae, respectively. They should therefore be classified in different anamorph-genera; Cladosporium being restricted to plant-associated species. A relatively large proportion of ...
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Nutritional physiology and taxonomy of human-pathogenic Cladosporium-Xylohypha species.
Journal of medical and veterinary mycology : bi-monthly publication of the International Society for Human and Animal Mycology, 1995Co-Authors: G S Hoog, Eveline Guého, F. Masclaux, A. H. G. Gerrits Van Den Ende, K. J. Kwon-chung, Michael R. McginnisAbstract:Physiological profiles of type, authentic and some additional isolates of Cladosporium-Xylohypha species of purported herpotrichiellaceous relationship are established. This group comprises melanized catenate hyphomycetes which are prevalently found on the human host. The species are excluded from the genus Cladosporium and are classified in the genus Cladophialophora. Taeniolella boppii is also transferred to this genus. Cladosporium bantianum ( = Xylohypha emmonsii) and C. trichoides are considered conspecific and are now referred to as Cladophialophora bantiana.Meso-erythritol, l-arabinitol, ethanol and growth at 40 °C are found to be the most useful criteria for species distinction. The species Cladosporium carrionii is found to be heterogeneous. The anamorph of the saprophytic ascomycete Capronia pilosella is morphologically similar to an authentic strain of Cladosporium carrionii, but physiologically distinct. A diagnostic key for the recognized Cladophialophora species and to morphologically simila...
Uwe Braun - One of the best experts on this subject based on the ideXlab platform.
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Taxonomic revision of the genus Cladosporium s. lat. 5. Validations and descriptions of new species.
2013Co-Authors: Konstanze Schubert, Uwe Braun, Wiesław MułenkoAbstract:Abstract: SCHUBERT, K., BRAUN, U. & MULENKO, W. (2006): Taxonomic revision of the genus Cladosporium s. lat. 5. Validations and descriptions of new species. Schlechtendalia 14 : 55–83. The new species Cladosporium alneum, C. foliorum, C. fraxinicola, C. liriodendri, C. oreodaphnes, C. populicola, C. smilacicola and C. syringicola are described, illustrated and discussed, and the new combinations Cladosporium bosciae and C. chamaeropis are introduced. Cladosporium acutum and C. phoenicis are reduced to synonymy with C. herbarum . Zusammenfassung: Schubert, K., Braun, U. & Mulenko, W. (2006): Taxonomische Revision der Gattung Cladosporium s. lat. 5. Validierungen und Beschreibungen neuer Arten. Schlechtendalia 14 : 55–83. Die neuen Arten Cladosporium alneum, C. foliorum, C. fraxinicola, C. liriodendri, C. oreodaphnes, C. populicola, C. smilacicola und C. syringicola werden beschrieben, illustriert und diskutiert. Weiterhin werden die Neukombinationen Cladosporium bosciae und C. chamaeropis eingefuhrt. Cladosporium acutum und C. phoenicis werden zu Synonymen von C. herbarum reduziert.
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Check-list of Cladosporium names
2013Co-Authors: Frank M. Dugan, Konstanze Schubert, Uwe BraunAbstract:Abstract: DUGAN, F.M., SCHUBERT, K. & BRAUN, U. (2004): Check-list of Cladosporium names. Schlechtendalia 11 : 1–103. Names of species and subspecific taxa referred to the hyphomycetous genus Cladosporium are listed. Citations for original descriptions, types, synonyms, teleomorphs (if known), references of important redescriptions in literature, illustrations and notes are given. This list contains data for 772 Cladosporium names, i.e., valid, invalid, legitimate and illegitimate species, varieties and formae as well as herbarium names. Zusammenfassung: DUGAN, F.M., SCHUBERT, K. & BRAUN, U. (2004): Checkliste der Cladosporium-Namen. Schlechtendalia 11 : 1–103. Namen von Arten und subspezifischen Taxa der Hypho-mycetengattung Cladosporium werden aufgelistet. Bibliographische Angaben zur Erstbeschreibung, Typusangaben, Synonyme, die Teleomorphe (falls bekannt), wichtige Literaturhinweise und Abbildungen sowie Anmerkungen werden angegeben. Die vorliegende Liste enthalt Namen von 772 Taxa, d.h. gultige, ungultige, legitime und illegitime Arten, Varietaten, Formen und auch Herbarnamen.
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the genus Cladosporium
Studies in Mycology, 2012Co-Authors: K. Bensch, Uwe Braun, P W Crous, J Z GroenewaldAbstract:Abstract A monographic revision of the hyphomycete genus Cladosporium s. lat. ( Cladosporiaceae, Capnodiales ) is presented. It includes a detailed historic overview of Cladosporium and allied genera, with notes on their phylogeny, systematics and ecology. True species of Cladosporium s. str. (anamorphs of Davidiella ), are characterised by having coronate conidiogenous loci and conidial hila, i.e., with a convex central dome surrounded by a raised periclinal rim. Recognised species are treated and illustrated with line drawings and photomicrographs (light as well as scanning electron microscopy). Species known from culture are described in vivo as well as in vitro on standardised media and under controlled conditions. Details on host range/substrates and the geographic distribution are given based on published accounts, and a re-examination of numerous herbarium specimens. Various keys are provided to support the identification of Cladosporium species in vivo and in vitro . Morphological datasets are supplemented by DNA barcodes (nuclear ribosomal RNA gene operon, including the internal transcribed spacer regions ITS1 and ITS2, the 5.8S nrDNA, as well as partial actin and translation elongation factor 1-α gene sequences) diagnostic for individual species. In total 993 names assigned to Cladosporium s. lat ., including Heterosporium (854 in Cladosporium and 139 in Heterosporium ), are treated, of which 169 are recognized in Cladosporium s. str . The other taxa are doubtful, insufficiently known or have been excluded from Cladosporium in its current circumscription and re-allocated to other genera by the authors of this monograph or previous authors. Taxonomic novelties: Cladosporium allicinum (Fr.: Fr.) Bensch, U. Braun & Crous, comb. nov., C. astroideum var. catalinense U. Braun, var. nov., Fusicladium tectonicola (Yong H. He & Z.Y. Zhang) U. Braun & Bensch, comb. nov., Septoidium uleanum (Henn.) U. Braun, comb. nov., Zasmidium adeniae (Hansf.) U. Braun, comb. nov., Zasmidium dianellae (Sawada & Katsuki) U. Braun, comb. nov., Zasmidium lythri (Westend.) U. Braun & H.D. Shin, comb. nov., Zasmidium wikstroemiae (Petch) U. Braun, comb. nov.
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Delimiting Cladosporium from morphologically similar genera
Studies in mycology, 2007Co-Authors: Pedro W. Crous, Uwe Braun, Konstanze Schubert, Johannes Z. GroenewaldAbstract:The genus Cladosporium is restricted to dematiaceous hyphomycetes with a coronate scar type, and Davidiella teleomorphs. In the present study numerous Cladosporium-like taxa are treated, and allocated to different genera based on their morphology and DNA phylogeny derived from the LSU nrRNA gene. Several species are introduced in new genera such as Hyalodendriella, OchroCladosporium, RachiCladosporium, RhizoCladosporium, ToxicoCladosporium and VerrucoCladosporium. A further new taxon is described in Devriesia (Teratosphaeriaceae). Furthermore, Cladosporium castellanii, the etiological agent of tinea nigra in humans, is confirmed as synonym of Stenella araguata, while the type species of Stenella is shown to be linked to the Teratosphaeriaceae (Capnodiales), and not the Mycosphaerellaceae as formerly presumed.
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Metulocladosporiella gen. nov. for the causal organism of Cladosporium speckle disease of banana.
Mycological Research, 2006Co-Authors: Pedro W. Crous, Uwe Braun, Johannes Z. Groenewald, Hansjosef Schroers, Konstanze SchubertAbstract:Cladosporium musae, a widespread leaf-spotting hyphomycete on Musa spp., is genetically and morphologically distinct from Cladosporium s. str. (Davidiella anamorphs, Mycosphaerellaceae, Dothideales). DNA sequence data derived from the ITS and LSU gene regions of C. musae isolates show that this species is part of a large group of hyphomycetes in the Chaetothyriales with dematiaceous blastoconidia in acropetal chains. Cladosporium adianticola, a foliicolous hyphomycete known from leaf litter in Cuba is also a member of this clade and is closely related to C. musae. A comparison with other genera in the Cladosporium complex revealed that C. musae belongs to a lineage for which no generic name is currently available, and for which the genus Metulocladosporiella gen. nov. is proposed. Two species of Metulocladosporiella are currently known, namely M. musae, which is widely distributed, and M. musicola sp. nov., which is currently known from Africa.
P W Crous - One of the best experts on this subject based on the ideXlab platform.
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the genus Cladosporium
Studies in Mycology, 2012Co-Authors: K. Bensch, Uwe Braun, P W Crous, J Z GroenewaldAbstract:Abstract A monographic revision of the hyphomycete genus Cladosporium s. lat. ( Cladosporiaceae, Capnodiales ) is presented. It includes a detailed historic overview of Cladosporium and allied genera, with notes on their phylogeny, systematics and ecology. True species of Cladosporium s. str. (anamorphs of Davidiella ), are characterised by having coronate conidiogenous loci and conidial hila, i.e., with a convex central dome surrounded by a raised periclinal rim. Recognised species are treated and illustrated with line drawings and photomicrographs (light as well as scanning electron microscopy). Species known from culture are described in vivo as well as in vitro on standardised media and under controlled conditions. Details on host range/substrates and the geographic distribution are given based on published accounts, and a re-examination of numerous herbarium specimens. Various keys are provided to support the identification of Cladosporium species in vivo and in vitro . Morphological datasets are supplemented by DNA barcodes (nuclear ribosomal RNA gene operon, including the internal transcribed spacer regions ITS1 and ITS2, the 5.8S nrDNA, as well as partial actin and translation elongation factor 1-α gene sequences) diagnostic for individual species. In total 993 names assigned to Cladosporium s. lat ., including Heterosporium (854 in Cladosporium and 139 in Heterosporium ), are treated, of which 169 are recognized in Cladosporium s. str . The other taxa are doubtful, insufficiently known or have been excluded from Cladosporium in its current circumscription and re-allocated to other genera by the authors of this monograph or previous authors. Taxonomic novelties: Cladosporium allicinum (Fr.: Fr.) Bensch, U. Braun & Crous, comb. nov., C. astroideum var. catalinense U. Braun, var. nov., Fusicladium tectonicola (Yong H. He & Z.Y. Zhang) U. Braun & Bensch, comb. nov., Septoidium uleanum (Henn.) U. Braun, comb. nov., Zasmidium adeniae (Hansf.) U. Braun, comb. nov., Zasmidium dianellae (Sawada & Katsuki) U. Braun, comb. nov., Zasmidium lythri (Westend.) U. Braun & H.D. Shin, comb. nov., Zasmidium wikstroemiae (Petch) U. Braun, comb. nov.
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phylogeny and ecology of the ubiquitous saprobe Cladosporium sphaerospermum with descriptions of seven new species from hypersaline environments
Studies in Mycology, 2007Co-Authors: Polona Zalar, G S Hoog, Hansjosef Schroers, P W Crous, J Z Groenewald, Nina GundecimermanAbstract:Saprobic Cladosporium isolates morphologically similar to C. sphaerospermum are phylogenetically analysed on the basis of DNA sequences of the ribosomal RNA gene cluster, including the internal transcribed spacer regions ITS1 and ITS2, the 5.8S rDNA (ITS) and the small subunit (SSU) rDNA as well as β-tubulin and actin gene introns and exons. Most of the C. sphaerospermum-like species show halotolerance as a recurrent feature. Cladosporium sphaerospermum, which is characterised by almost globose conidia, is redefined on the basis of its ex-neotype culture. Cladosporium dominicanum, C. psychrotolerans, C. velox, C. spinulosum and C. halotolerans, all with globoid conidia, are newly described on the basis of phylogenetic analyses and cryptic morphological and physiological characters. Cladosporium halotolerans was isolated from hypersaline water and bathrooms and detected once on dolphin skin. Cladosporium dominicanum and C. velox were isolated from plant material and hypersaline water. Cladosporium psychrotolerans, which grows well at 4 °C but not at 30 °C, and C. spinulosum, having conspicuously ornamented conidia with long digitate projections, are currently only known from hypersaline water. We also newly describe C. salinae from hypersaline water and C. fusiforme from hypersaline water and animal feed. Both species have ovoid to ellipsoid conidia and are therefore reminiscent of C. herbarum. Cladosporium langeronii (= Hormodendrum langeronii) previously described as a pathogen on human skin, is halotolerant but has not yet been recorded from hypersaline environments.
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biodiversity in the Cladosporium herbarum complex davidiellaceae capnodiales with standardisation of methods for Cladosporium taxonomy and diagnostics
Studies in Mycology, 2007Co-Authors: K Schube, G S Hoog, J Z Groenewald, Ja Dijksterhuis, M Starink, C F Hill, Polona Zala, P W CrousAbstract:The Cladosporium herbarum complex comprises five species for which Davidiella teleomorphs are known. Cladosporium herbarum s. str. (D. tassiana), C. macrocarpum (D. macrocarpa) and C. bruhnei (D. allicina) are distinguishable by having conidia of different width, and by teleomorph characters. Davidiella variabile is introduced as teleomorph of C. variabile, a homothallic species occurring on Spinacia, and D. macrospora is known to be the teleomorph of C. iridis on Iris spp. The C. herbarum complex combines low molecular distance with a high degree of clonal or inbreeding diversity. Entities differ from each other by multilocus sequence data and by phenetic differences, and thus can be interpreted to represent individual taxa. Isolates of the C. herbarum complex that were formerly associated with opportunistic human infections, cluster with C. bruhnei. Several species are newly described from hypersaline water, namely C. ramotenellum, C. tenellum, C. subinflatum, and C. herbaroides. Cladosporium pseudiridis collected from Iris sp. in New Zealand, is also a member of this species complex and shown to be distinct from C. iridis that occurs on this host elsewhere in the world. A further new species from New Zealand is C. sinuosum on Fuchsia excorticata. Cladosporium antarcticum is newly described from a lichen, Caloplaca regalis, collected in Antarctica, and C. subtilissimum from grape berries in the U.S.A., while the new combination C. ossifragi, the oldest valid name of the Cladosporium known from Narthecium in Europe, is proposed. Standard protocols and media are herewith proposed to facilitate future morphological examination of Cladosporium spp. in culture, and neotypes or epitypes are proposed for all species treated.
Jan Dijksterhuis - One of the best experts on this subject based on the ideXlab platform.
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Cladosporium species in indoor environments
Studies in mycology, 2018Co-Authors: K. Bensch, Pedro W. Crous, Johannes Z. Groenewald, M. Meijer, Jan Dijksterhuis, Željko Jurjević, Birgitte Andersen, J. Houbraken, Rob SamsonAbstract:As part of a worldwide survey of the indoor mycobiota about 520 new Cladosporium isolates from indoor environments mainly collected in China, Europe, New Zealand, North America and South Africa were investigated by using a polyphasic approach to determine their species identity. All Cladosporium species occurring in indoor environments are fully described and illustrated. Fourty-six Cladosporium species are treated of which 16 species are introduced as new. A key for the most common Cladosporium species isolated from indoor environments is provided. Cladosporium halotolerans proved to be the most frequently isolated Cladosporium species indoors.
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Xerotolerant Cladosporium sphaerospermum Are Predominant on Indoor Surfaces Compared to Other Cladosporium Species.
PloS one, 2015Co-Authors: Frank J. J. Segers, M. Meijer, Jos Houbraken, Robert A. Samson, Han A. B. Wösten, Jan DijksterhuisAbstract:Indoor fungi are a major cause of cosmetic and structural damage of buildings worldwide and prolonged exposure of these fungi poses a health risk. Aspergillus, Penicillium and Cladosporium species are the most predominant fungi in indoor environments. Cladosporium species predominate under ambient conditions. A total of 123 Cladosporium isolates originating from indoor air and indoor surfaces of archives, industrial factories, laboratories, and other buildings from four continents were identified by sequencing the internal transcribed spacer (ITS), and a part of the translation elongation factor 1α gene (TEF) and actin gene (ACT). Species from the Cladosporium sphaerospermum species complex were most predominant representing 44.7% of all isolates, while the Cladosporium cladosporioides and Cladosporium herbarum species complexes represented 33.3% and 22.0%, respectively. The contribution of the C. sphaerospermum species complex was 23.1% and 58.2% in the indoor air and isolates from indoor surfaces, respectively. Isolates from this species complex showed growth at lower water activity (≥ 0.82) when compared to species from the C. cladosporioides and C. herbarum species complexes (≥ 0.85). Together, these data indicate that xerotolerance provide the C. sphaerospermum species complex advantage in colonizing indoor surfaces. As a consequence, C. sphaerospermum are proposed to be the most predominant fungus at these locations under ambient conditions. Findings are discussed in relation to the specificity of allergy test, as the current species of Cladosporium used to develop these tests are not the predominant indoor species.
Carolina Pérez-martínez - One of the best experts on this subject based on the ideXlab platform.
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Cladosporium cladosporioides and Cladosporium pseudocladosporioides as potential new fungal antagonists of Puccinia horiana Henn., the causal agent of chrysanthemum white rust.
PLOS ONE, 2017Co-Authors: David Eduardo Torres, Reyna Isabel Rojas-martínez, Emma Zavaleta-mejía, Patricia Guevara-fefer, G. Judith Márquez-guzmán, Carolina Pérez-martínezAbstract:Puccinia horiana Hennings, the causal agent of chrysanthemum white rust, is a worldwide quarantine organism and one of the most important fungal pathogens of Chrysanthemum × morifolium cultivars, which are used for cut flowers and as potted plants in commercial production regions of the world. It was previously reported to be controlled by Lecanicillium lecanii, Cladosporium sphaerospermum, C. uredinicola and Aphanocladium album, due to their antagonistic and hyperparasitic effects. We report novel antagonist species on Puccinia horiana. Fungi isolated from rust pustules in a commercial greenhouse from Villa Guerrero, Mexico, were identified as Cladosporium cladosporioides and Cladosporium pseudocladosporioides based upon molecular analysis and morphological characters. The antagonism of C. cladosporioides and C. pseudocladosporioides on chrysanthemum white rust was studied using light and electron microscopy in vitro at the host/parasite interface. Cladosporium cladosporioides and C. pseudocladosporioides grew towards the white rust teliospores and colonized the sporogenous cells, but no direct penetration of teliospores was observed; however, the structure and cytoplasm of teliospores were altered. The two Cladosporium spp. were able to grow on media containing laminarin, but not when chitin was used as the sole carbon source; these results suggest that they are able to produce glucanases. Results from the study indicate that both Cladosporium species had potential as biological control agents of chrysanthemum white rust.