Hortaea werneckii (Horta) Nishim. & Miyaji, Japanese Journal of Medical Mycology 26 (2): () [MB#]. Hortaea werneckii is a dematiaceous yeast that inhabits the soil, particularly in tropical and subtropical climates. It is halophilic and has also been isolated from . Abstract. During a survey of black yeasts of marine origin, some isolates of Hortaea werneckii were recovered from scuba diving equipment, such as silicone .

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This species is unable to degrade keratin, but shows significant hhortaea activity. Support of internal branches was assessed by a search of 1, bootstrapped sets of data. Catalogue of Life CoL. Polyethylene is the most widely used plastic and its use in plastic implants and medical devices has led to a concomitant increase in the incidence of device-related infections, with the most common fungal pathogen being Candida albicans [ 18 ].

Hortein, a new natural product from the fungus Hortaea werneckii associated with the sponge Aplysina aerophoba. Specimen record 2. Treatment with keratolytic agents and topical antifungals was effective. Hortaea werneckii Tinea nigra Piedraia hortae Black piedra. Hypersaline waters in salterns: The disorder has longtime been regarded as an infection and hortaae Hortaea werneckii was classified as a BioSafety Level 2 organism Anon The prevalence and clinical significance of microcolonies when tested wernecii to contemporary interpretive breakpoints for fluconazole against Candida species using E-test.

Most reports originate from tropical, humid climate zones. The disorder is rare in Europe Hughes et al. Marine culturable yeasts in deep-sea hydrothermal vents: Table 1 shows the strain numbers and the main demographical data of the patients. Epidemiology of superficial fungal diseases in French Guiana: You may not alter, transform, or build upon this work.


According to statistics in our hospital in Mexico City, D. Specimens and strains links: In nineteen cases the disorder was located on palms of hands and in three on soles of feet.

Moldy scuba diving snorkel. Blastomyces dermatitidis Blastomycosis North American blastomycosis South American blastomycosis Sporothrix schenckii Sporotrichosis Penicillium marneffei Penicilliosis. The treatment of tinea nigra is very simple and effective. Dematium werneckii Horta C. All patients had a positive culture that was preliminarily identified as Hortaea werneckii ; active growth was evident on average after 5. Apart from these hybridization events, werneckiii signs of sexual reproduction were found.

Amplification and direct sequencing of fungi ribosomal RNA genes for phylogenetics.

A few other molds were found e. Figure 3 shows the molecular phylogenetic trees based on the ITS Therapy of tinea nigra plantaris.

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Two patients used to run barefoot along the beach. Hortaea werneckii is a species of yeast in the family Teratosphaeriaceae. Hortaea werneckii is a halophilic saprobe hortaex occurs in natural saltpans [ 1 ] being the dominant species in hypersaline evaporation ponds [ 8 ].

This may be revealed by dermatoscopy, which is a technique allowing the observation of fungal elements with certainty, particularly when flanked with microbiological tests Smith et al. However, it has been found in seawater from Japan [ 26 ] and has been recently isolated from a sample of Bathymodiolus azoricus which is a mussel that dominates hydrothermal vent sites along the northern Mid-Atlantic Ridge at 2, m depth [ 27 ].


Conidia finally germinate hortaaea hyphae resulting in yeast-like colonies that gradually change over into filaments to hortara the anamorph life cycle.

Clinical derneckii Experimental Dermatology Archived copy as title Articles with ‘species’ microformats Taxonbars with automatically added basionyms. Predisposing factors associated with the condition are hyperhydrosis Severo et al.

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Another isolate came from a case of tinea nigra Crous et al. International Journal of Dermatology Most patients originated from rural areas in tropical and eerneckii regions characterized by abundant subtropical and tropical vegetation. In fact it is considered an imported fungal infection in Europe [ 34 ] being much more prevalent in warm, humid parts of the world, such werneeckii the tropical regions of Central America, South America, Africa, and Asia and infrequently in USA and Australia [ 5—7 ].

Please review our privacy policy. The occurrence of this fungus in Spain is also an unexpected finding because cases of tinea nigra in this country are practically not seen.

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