Isolation and characterization of a new fungal genus and species, Aphanoascella galapagosensis, from carapace keratitis of a Galapagos tortoise (Chelonoidis nigra microphyes).
Med Mycol, 2013/2;51(2):113-20.
Sutton DA[1], Marín Y, Thompson EH, Wickes BL, Fu J, García D, Swinford A, de Maar T, Guarro J
Affiliations
PMID: 22852752DOI: 10.3109/13693786.2012.701767
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Abstract
A new fungal genus and species, Aphanoascella galapagosensis, recovered from carapace keratitis in a Galapagos tortoise residing in a south Texas zoological collection, is characterized and described. The presence of a pale peridium composed of textura epidermoidea surrounded by scarce Hülle cell-like chlamydospores, and the characteristic reticulate ascospores with an equatorial rim separates it from other genera within the Onygenales. The phylogenetic tree inferred from the analysis of D1/D2 sequences demonstrates that this fungus represents a new lineage within that order. As D1/D2 and ITS sequence data also shows a further separation of Aphanoascus spp. into two monophyletic groups, we propose to retain the generic name Keratinophyton for species whose ascospores are pitted and display a conspicuous equatorial rim, and thereby propose new combinations in this genus for four Aphanoascus species.
MeSH terms
Animals; Base Sequence; DNA, Fungal; DNA, Ribosomal Spacer; Keratitis; Molecular Sequence Data; Onygenales; Phylogeny; Sequence Alignment; Sequence Analysis, DNA; Species Specificity; Spores, Fungal; Texas; Turtles
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