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 Add-on is available at http: In some reports it even was misidentified as melanomas. Hoetaea In or Create an Account. The melanized, polymorphic and yeast-like fungus Hortaea werneckii may be difficult to recognize by morphological characters. In fact it is considered an imported fungal infection in Europe [ 34 ] being much more prevalent in warm, humid parts of the world, such as the tropical regions of Central America, South America, Africa, and Asia and infrequently horttaea USA and Australia [ 5—7 ].
In Arenas R, Estrada R eds: In total, six black yeast isolates were recovered from the samples and all fit the phenotypic characteristics of H. 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 werneeckii 18 ].
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Only one patient in our study, presented with erythema, also reported moderate itching as was noted in other studies Hughes et al. Cell-surface hydrophobicity and lipolysis as essential factors in human tinea nigra. Each of the strains was identified using macro- and microscopical features. Receive exclusive offers and updates from Oxford Academic. More on this topic Hortsea saturnica sp. We are unaware of any case of a tinea nigra located in the interdigital spaces.
Several of them reported to have close contact with plants and grasses.
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Eleven cases originated from coastal zones where patients may have been in contact with substrata of high salinity: Therapy of tinea nigra plantaris. Journal of Dermatology Methods for DNA extraction and sequencing were those of Badali et al. In twelve cases, adults were involved, in 10, children. Tinea nigra is a superficial mycosis caused by Hortaea werneckii. Culture of Hortaea werneckii on SGA.
Antonie van Leeuwenhoek Swabs were streaked over the surface of culture media, while granitic sand samples were inoculated onto the same culture media by sprinkling wet sand grains over serneckii surface of the plates. Treatment of tinea palmaris with Mycospor. Extensive tinea nigra palmaris case 1; Table 1 ; B. Hortaea werneckiikeratolysis, melanized fungi, superficial mycosis, tinea nigra, tinea palmaris.
Cookies mentioned in the last point are Google wrrneckii cookies that are IP anonymized which means that we cannot trace single users. It has been proven that the natural habitat of the fungus comprises hypersaline environments due to its halophilic behaviour Zalar et al. Google Wikimedia Wikipedia Wikispecies. Although scuba diving equipment should be cleaned and dried at the end of each day’s dive to prevent salt build-up and reduce microbial contamination, it is not unusual to see silicone scuba diving equipment, such as silicone masks, straps and snorkel mouthpieces, with fungal growth.
In our study, H. The disorder is rare in Europe Hughes et al. This is the case only when patients worry because of confusion with other pigmented skin diseases, such as melanoma.
hoortaea Tinea nigra under dermatoscopy, multiple pigmented lesions; G. Two patients were not treated with any medication due to uncertain initial diagnosis, but presented spontaneous cure was achieved within about two mos. Conidia finally germinate with hyphae resulting in yeast-like colonies that gradually change over into filaments to complete the anamorph life cycle.