Sporothrix brasiliensis,S. globosa, andS. mexicana, Three NewSporothrixSpecies of Clinical Interest

Journal of Clinical Microbiology - Tập 45 Số 10 - Trang 3198-3206 - 2007
Rita Marimon1, J. Cano1, Josepa Gené1, Deanna A. Sutton2, Masanori Kawasaki3, Josep Guarro1
1Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Reus, Spain
2Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
3Department of Dermatology, Kanazawa Medical University, Ishikawa, Japan

Tóm tắt

ABSTRACTSporothrix schenckiiis the species responsible for sporotrichosis, a fungal infection caused by the traumatic implantation of this dimorphic fungus. Recent molecular studies have demonstrated that this species constitutes a complex of numerous phylogenetic species. Since the delineation of such species could be of extreme importance from a clinical point of view, we have studied a total of 127 isolates, most of which were received asS. schenckii, including the available type strains of species currently considered synonyms, and also some close morphological species. We have phenotypically characterized all these isolates using different culture media, growth rates at different temperatures, and numerous nutritional tests and compared their calmodulin gene sequences. The molecular analysis revealed thatSporothrix albicans,S. inflata, andS. schenckiivar.lurieiare species that are clearly different fromS. schenckii. The combination of these phenetic and genetic approaches allowed us to propose the new speciesSporothrix brasiliensis,S. globosa, andS. mexicana. The key phenotypic features for recognizing these species are the morphology of the sessile pigmented conidia, growth at 30, 35, and 37°C, and the assimilation of sucrose, raffinose, and ribitol.

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Journal of Clinical Microbiology

Tập 45 Số 10

3198-3206

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