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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We evaluate retrospectively twenty-two confirmed cases of tinea nigra from a total of eleven yr — and discuss the epidemiology, clinical features and treatment of this disease.
They are initially black with a creamy appearance and later become filamentous. Most cases are unilateral but also bilateral infections can be observed Tseng et al. Google cookies and technologies Google Analytics: We werneckkii unaware of any case of a tinea nigra located in the interdigital spaces.
For practical reasons we have decided not to translate all pages in several languages anymore because it was too heavy to maintain but some of the labels of wernckii basic and advanced query pages are still available.
Several salt-tolerance mechanisms of H. Bernard Jabas 1 and Dr. Summary of treatment of tinea nigra. In fact this species is not reported as a marine yeast [ 25 ].
Eleven cases were treated with Whitfield ointment.
Hortaea werneckii | Mycology Online
Bacteriome-associated Wolbachia of the parthenogenetic termite Cavitermes tuberosus.
Abstract During a survey of black yeasts of marine origin, some isolates of Hortaea werneckii were recovered from scuba diving equipment, such as silicone masks and snorkel mouthpieces, which had been kept under poor storage conditions. Specimen record 2.
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These clustered with sequences of H. Sequences were compared using a black yeast molecular database maintained at the Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands. Table 1 shows the strain numbers and the main demographical data of the patients. Tinea nigra is a superficial mycosis caused by Hortaea werneckii. Growth on this medium was primarily restricted to Serneckii. Journal of Dermatology Conidia finally germinate werneclii hyphae resulting in yeast-like colonies that gradually change over into filaments to complete the anamorph life cycle.
Course of the infection according to our data was 1—18 mos, with a mean incubation time of 3.
Advances in Applied Microbiology. Araiza1 M. The frequency of the disorder may be higher, but due to its asymptomatic nature and the possibility of spontaneous cure, patients wegneckii reach the doctor’s office. International Journal of Dermatology The growth impairment of salinized fenugreek Trigonella foenum-graecum L. The purified product was used as a template for sequencing.
It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide. Adaptation of extremely halotolerant wernecmii yeast Hortaea werneckii to increased osmolarity: In total, six black yeast isolates were recovered from the samples and all fit the phenotypic characteristics of H.
However, other black yeasts have been isolated from silicone seals in the shower room of a hospital ward [ 23 ] or from rubber seals of the doors of dishwashers in private homes [ 24 ].
Hortaea werneckii – Wikipedia
Most cases resolve with only keratinolytic agents like urea, salicylic acid and Whitfield ointment, applied once or twice a day Sayegh-Carreno et al. Any of the above conditions can be waived if you get permission from the copyright holder.
Candida albicans Candidiasis Oral Esophageal Vulvovaginal Chronic mucocutaneous Antibiotic candidiasis Candidal intertrigo Candidal onychomycosis Candidal paronychia Candidid Diaper candidiasis Congenital cutaneous candidiasis Perianal candidiasis Systemic candidiasis Erosio interdigitalis blastomycetica C. In some regions of Venezuela, Stenella araguata Syd. Our 22 cases present a large series and, unlike other published reports for example, Severo et al.
Archives of Dermatology Silicone rubber is generally non-reactive, stable, biologically inert and resistant to extreme environments and temperatures and can be found in a wide variety of products such as home sealants, food storage products, sportswear, footwear, electrical and electronic components, medical devices and implants.
Most typically, it affects palms of hands but is occasionally found on other parts of the body.