title: Molecular and morphological identification of Colletotrichum species of clinical interest.
abstract: Colletotrichum species have caused human infections in recent years. Because of the difficulties in recognizing them in vitro, we have designed a quick and unambiguous molecular test, based on the amplification of a specific fragment of the internal transcribed spacer 1 region, to distinguish any Colletotrichum isolate from other fungi, including the common pathogenic species. Analysis of the sequences of the ribosomal DNA (rDNA) fragment showed sufficient variability to clearly separate the five species of Colletotrichum that are of clinical interest, i.e., Colletotrichum coccodes, C. crassipes, C. dematium, C. gloeosporioides, and C. graminicola. Sequencing of the D1-D2 region of the large-subunit rDNA gene also supported these results. Additionally, we reviewed the most suitable morphological characteristics for the in vitro identification of these increasingly important opportunistic fungi.
authors.affiliation: Unitat de Microbiologia, Departament de Ciències Mèdiques Bàsiques, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Carrer Sant Llorenç 21, 43201-Reus, Tarragona, Spain. jfcl@astor.urv.es
authors.forename: Josep
authors.initials: J
authors.lastname: Cano
authors.forename: Josep
authors.initials: J
authors.lastname: Guarro
authors.forename: Josepa
authors.initials: J
authors.lastname: Gené
mesh_terms: D020231:Colletotrichum / Q000166:cytology / Q000235:genetics / Q000302:isolation & purification*; D004275:DNA, Ribosomal / Q000032:analysis; D006801:Humans
chemical_list: D004275:DNA, Ribosomal