Studies in Mycology (2010) 67, 1-94

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K. Bensch, J.Z. Groenewald, J. Dijksterhuis, M. Starink-Willemse, B. Andersen, B.A. Summerell, H.-D. Shin, F.M. Dugan, H.-J. Schroers, U. Braun and P.W. Crous (2010)
Species and ecological diversity within the Cladosporium cladosporioides complex (Davidiellaceae, Capnodiales)
Studies in Mycology 67, 1-94
Abstract: The genus Cladosporium is one of the largest genera of dematiaceous hyphomycetes, and is characterised by a coronate scar structure, conidia in acropetal chains and Davidiella teleomorphs. Based on morphology and DNA phylogeny, the species complexes of C. herbarum and C. sphaerospermum have been resolved, resulting in the elucidation of numerous new taxa. In the present study, more than 200 isolates belonging to the C. cladosporioides complex were examined and phylogenetically analysed on the basis of DNA sequences of the 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-alpha gene sequences. For the saprobic, widely distributed species Cladosporium cladosporioides, both a neotype and epitype are designated in order to specify a well established circumscription and concept of this species. Cladosporium tenuissimum and C. oxysporum, two saprobes abundant in the tropics, are epitypified and shown to be allied to, but distinct from C. cladosporioides. Twenty-two species are newly described on the basis of phylogenetic characters and cryptic morphological differences. The most important phenotypic characters for distinguishing species within the C. cladosporioides complex, which represents a monophyletic subclade within the genus, are shape, width, length, septation and surface ornamentation of conidia and conidiophores; length and branching patterns of conidial chains and hyphal shape, width and arrangement. Many of the treated species, e.g., C. acalyphae, C. angustisporum, C. australiense, C. basiinflatum, C. chalastosporoides, C. colocasiae, C. cucumerinum, C. exasperatum, C. exile, C. flabelliforme, C. gamsianum, and C. globisporum are currently known only from specific hosts, or have a restricted geographical distribution. A key to all species recognised within the C. cladosporioides complex is provided.
Taxonomic novelties: Cladosporium acalyphae Bensch, H.D. Shin, Crous and U. Braun, sp. nov., C. angustisporum Bensch, Summerell, Crous and U. Braun, sp. nov., C. asperulatum Bensch, Crous and U. Braun, sp. nov., C. australiense Bensch, Summerell, Crous and U. Braun, sp. nov., C. basiinflatum Bensch, Crous and U. Braun, sp. nov., C. chalastosporoides Bensch, Crous and U. Braun, sp. nov., C. exasperatum Bensch, Summerell, Crous and U. Braun, sp. nov., C. exile Bensch, Glawe, Crous and U. Braun, sp. nov., C. flabelliforme Bensch, Summerell, Crous and U. Braun, sp. nov., C. globisporum Bensch, Crous and U. Braun, sp. nov., C. hillianum Bensch, Crous and U. Braun, sp. nov., C. inversicolor Bensch, Crous and U. Braun, sp. nov., C. iranicum Bensch, Crous and U. Braun, sp. nov., C. paracladosporioides Bensch, Crous and U. Braun, sp. nov., C. perangustum Bensch, Crous and U. Braun, sp. nov., C. phyllactiniicola Bensch, Glawe, Crous and U. Braun, sp. nov., C. pseudocladosporioides Bensch, Crous and U. Braun, sp. nov., C. rectoides Bensch, H.D. Shin, Crous and U. Braun, sp. nov., C. scabrellum Bensch, Schroers, Crous and U. Braun, sp. nov., C. subuliforme Bensch, Crous and U. Braun, sp. nov., C. verrucocladosporioides Bensch, H.D. Shin, Crous and U. Braun, sp. nov., C. xylophilum Bensch, Shabunin, Crous and U. Braun, sp. nov.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: English)
Full text of article
Database assignments for author(s): Pedro W. Crous, Uwe Braun, Johannes Z. Groenewald

Research topic(s) for pests/diseases/weeds:
identification/taxonomy


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cladosporium cucumerinum Cucumber (Cucumis sativus) Netherlands
Cladosporium cucumerinum Cucumber (Cucumis sativus) U.S.A. (NE)
Cladosporium cladosporioides Pea (Pisum sativum) Germany
Cladosporium cladosporioides Pea (Pisum sativum) South Africa
Cladosporium cladosporioides Eucalypt (Eucalyptus) Indonesia
Cladosporium cladosporioides Eucalypt (Eucalyptus) India
Cladosporium cladosporioides Eucalypt (Eucalyptus) Australia (South+SE)
Cladosporium cladosporioides Eucalypt (Eucalyptus) Australia (NT+QLD)
Cladosporium cladosporioides Betelnut (Areca catechu) Thailand
Cladosporium cladosporioides Dalbergia (genus) India
Cladosporium cladosporioides Magnolia (crop) U.S.A. (mid S)
Cladosporium cladosporioides Celosia (crop) Korea-South
Cladosporium oxysporum
Cladosporium tenuissimum Citrus (genus) Iran
Cladosporium tenuissimum Banana/plantain (Musa) Indonesia
Cladosporium tenuissimum Banana/plantain (Musa) Ivory Coast
Cladosporium tenuissimum Banana/plantain (Musa) Mozambique
Cladosporium tenuissimum Magnolia (crop) U.S.A. (mid S)
Cladosporium tenuissimum Callistemon (crop) Australia (NT+QLD)
Cladosporium tenuissimum Strelitzia (crop) South Africa
Cladosporium colocasiae Taro (Colocasia) Japan
Cladosporium colocasiae Taro (Colocasia) Taiwan
Cladosporium colocasiae Taro (Colocasia) Ethiopia
Cladosporium colocasiae Taro (Colocasia) Dominican Republic
Cladosporium colocasiae Taro (Colocasia) Puerto Rico
Cladosporium perangustum
Cladosporium subuliforme Thailand