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 Add this item to the list  834845 Original description
   
Remarks (public):Based on megablast search of NCBI’s GenBank nucleotide database, the ITS sequence has low similarity with several unidentified Chaetothyriales strains (e.g. GenBank KX822488.1, identities 566/690 (82 %), 43 gaps (6 %); GenBank: KF614863.1, identities 566/690 (82 %), 43 gaps (6 %); GenBank: KF614863.1, identities 566/690 (82 %), 43 gaps (6 %)) and with Cladophialophora immunda (GenBank: MH864254.1, identities 580/715 (81 %), 57 gaps (7 %)). However, the sequences of all three isolates examined have a large sequence stretch between the end of the rDNA small subunit and the beginning of the ITS1 region that is not present in most GenBank records. When analysing only the ITS portion homologous to other ITS sequences in GenBank (nt 551–679), the megablast search yields highest similarity with 15 environmental sequences originating from a single study (e.g. GenBank MF793689.1, identities 129/129 (100 %), no gaps), and to two unidentified fungi (GenBank MG592689.1, identities 129/129 (100 %), no gaps; GenBank GQ996076.1, identities 127/129 (98 %), 1 gap (0 %)) and two Cladophialophora sp. isolates (GenBank LC189029.1, identities 129/129 (100 %), no gaps; and GenBank e ID: LC229675.1, identities 127/129 (98 %), 1 gap (0 %)). The closest hits using the LSU sequence are an unidentified fungus (GenBank GU552546.1, identities 675/676 (99 %), 1 gap (0 %)), Cladophialophora sp. (GenBank MF588895.1, identities 669/676 (99 %), 1 gap (0 %)), unidentified Chaetothyriales (GenBank KF614869.1, identities 666/676 (99 %), 1 gap (0 %)), and Cladophialophora carrionii (GenBank AF050262.1, identities 665/676 (98 %), 1 gap (0 %)).
The genus Cladophialophora is polyphyletic, including species that are commonly isolated from soil and living plants, but also found as causal agents of pathologies to humans. Cladophialophopra cabanerensis is phylogenetically placed outside the Carrionii and Bantiana clades defined by Badali et al. (2008) that contain most species pathogenic to humans. All the closest hits in the megablast search using the ITS sequence originate from fungi associated to plant roots, like the type specimen of C. cabanerensis, suggesting a preference of the species toward that habitat.
 
Description type:Original description 
Description:Mycelium consisting of hyaline, septate, branched, and septate hyphae, (0.5)0.7–1.3(1.6) µm (n = 20) wide, forming hyphal strands. Conidiophores mostly single, sympodial, erect, sub-cylindrical, hyaline, smooth, bearing one phialide, often reduced to a conidiogenous cell. Conidiogenous cells phialidic, hyaline, smooth, fusiform with one locus at the apex that leaves a scar, (2.8)3.6–6.2(7.6) µm long and up to (1.3)1.7–2.6(2.9) µm (n = 22) on its widest part. Conidia one-celled, produced in masses, hyaline, smooth, globose with a scar, (1.7)1.9–2.3(2.4) µm in diam (n = 40). Chlamydospores absent. Teleomorph unknown. Culture characteristics — Colonies slow growing, reaching 11–14 mm on MEA, 13–17 mm on MEA, and 9–12 mm on CMA after 7 days at 25 ºC. Colonies velvety, white, becoming light earthy after 3–4 weeks, with a compact and suede-like surface; reverse white cream. 
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