HORTAEA WERNECKII PDF

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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Feuilhade de Chauvin M In this paper, we describe the unexpected occurrence of this fungus on this special equipment usually used in close contact with human skin and mucous membranes. It is an infrequent asymptomatic infection that affects human palms and soles, and is mostly observed in tropical countries. Perhaps, the selective wernefkii factor to wedneckii substrates is a relatively high salt concentration and possibly the synthetic polymers of the polyethylene plastic and silicone rubber.

Tinea nigra by Hortaea werneckii, a report of 22 cases from Mexico

The frequency of the disorder may be higher, but due to its asymptomatic nature and the possibility of spontaneous cure, patients seldom reach the doctor’s office. National Center for Biotechnology InformationU. Mucorales Mucormycosis Rhizopus oryzae Mucor indicus Lichtheimia corymbifera Syncephalastrum racemosum Apophysomyces variabilis.

Dishwashers, a man-made ecological niche accommodating human opportunistic fungal pathogens. These clustered with sequences of H.

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Tinea nigra has a major clinical relevance because it can be mistaken for various types of nevi. Treatment of tinea palmaris with Mycospor.

The pigmentation of hyphae unambiguously distinguishes tinea nigra from various other types horteaa dermatophytoses or skin infections Hughes et al. Journal of Dermatology Cure was defined as the absence of clinical signs and negative culturing Table 2.

The variability observed in both ITS Open the calendar popup. Cell-surface hydrophobicity and lipolysis as essential factors in human tinea weerneckii. Direct KOH examinations provide us with quick information and demonstrate the short, tortuous, thick, light brown hyphae, which may occasionally be darkened, and sometimes present short filaments and yeast-like cells.

Dematium werneckii Horta C. Handbook of Tropical Dermatolog yortaea. With this incorrect diagnosis, two of the cases underwent biopsies, which lead to the observation of fungal elements in the stratum corneum with a discrete perivascular infiltrate.

Moldy scuba diving snorkel. Classification of organisms — Fungi. However, no correlation was observed between sequence type and origin of the isolates. Click on the language titles to launch them. The lesions are invariably flat, not elevated and without inflamed margins; they consist of pigmented, mostly brownish, irregular hortara asymptomatic macules and with well-defined borders, and are covered by fine scaling. The mycological and molecular study of Hortaea werneckii isolated from blood and splenic abscess.

Tinea nigra is an uncommon discolouration of the skin.

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Cookies mentioned in the last point are Google analytics cookies that are IP anonymized which means that we cannot trace single users. You may be, however, able to change your browser settings to cause your browser to refuse cookies in general, block third party cookies or to indicate when a cookie is being sent. Swiss Agency for the Hortawa, Forests and Landscape. Both cases had a clinical history of hyperhydrosis probably hortada in saline plantar cutaneous conditions and adhesion of the fungus Fig.

Hortaea werneckii is a species of yeast in the family Teratosphaeriaceae.

Views Read Edit View history. You may not alter, transform, or build upon this work. Studies in Mycology Direct inspection of some silicone rubber and plastic samples showed what appeared to be black fungal microcolonies Fig.

In all cases, the obtained isolates were morphologically identified as Hortaea werneckii and the identification of ten isolates was retrospectively confirmed with the help of sequences of the internal transcribed spacer regions of the ribosomal DNA. Three plastic dock fenders and wood boards of the dock with visible moldy growth were also sampled using the same technique.

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