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diversity and activities of yeasts from different parts of a stilton cheese.blue cheeses are very complex food matrices presenting significant spatial differentiation between sections and the stilton variety also has a hard brown crust making its matrix even more complex. the mycobiota communities in the three sections (blue veins, white core and outer crust) of a stilton blue cheese were studied by employing culture-independent (trflp, dgge) and culture-dependent analyses. yeasts isolated from the cheese were studied for aroma production in a dairy model system with an ...201424631634
morphological and biochemical characterization of the aetiological agents of white piedra.the trichosporon genus is constituted by many species, of which trichosporon ovoides and trichosporon inkin are the causative agents of white piedra. they can cause nodules in genital hair or on the scalp. at present, brazilian laboratory routines generally do not include the identification of the species of trichosporon genus, which, although morphologically and physiologically distinct, present many similarities, making the identification difficult. the aim of this study was to identify the ae ...200819148418
respiratory and systemic mycoses: an overview.respiratory and systemic mycoses are globally emerging as a problem of increasing importance in infectious diseases. this is attributed to the growing population of immunocompromised patients due to epidemic outbreak of aids or to other factors such as use of immunosuppressive drugs in recipients of organ transplantation. the available evidence has unequivocally established the endemic occurrence of blastomycosis, histoplasmosis and penicilliosis mameffei in india. in fact, pencilliosis marneffe ...200015597667
bioremediation of fish cannery wastewater with yeasts isolated from a drainage canal.several yeasts were isolated from a drainage canal in a japanese fish food processing factory. they were characterized by the decomposition of organic polymers such as proteins and reducing sugars, their growth in the wastewater, the decrease in total organic carbon (toc), and taxonomy. three strains of yeast dominated the sample: debaryomyces occidentalis (p1), trichosporon ovoides (p19), and a strain that could not be identified (s27). strain p19 had the highest toc-decreasing activity and was ...200214961230
two cases of scalp white piedra caused by trichosporon ovoides.white piedra is a superficial fungal infection of the hair shaft, caused by trichosporon beigelii . we report two cases of white piedra presenting as brown palpable nodules along the hair shaft with a fragility of scalp hairs. t. beigelii was demonstrated in hair culture of both the patients and t. ovoides as a species was confirmed on carbohydrate assimilation test. the first patient responded to oral itraconazole and topical ketoconazole, with a decrease in the palpability of nodules and fragi ...200919439885
antifungal susceptibility of emerging opportunistic yeasts and yeast-like fungi from rhea americana.opportunistic yeasts and yeast-like fungi have been recognized as important pathogens in high-risk patients. this study aimed to evaluate the presence of these microorganisms in the microbiota of captive rheas and to investigate the antifungal susceptibility of the isolated strains. isolates representing magnusiomyces capitatus (geotrichum capitatum, n = 11), trichosporon mucoides (n = 11), trichosporon asteroides (n = 5), rhodotorula mucilaginosa (n = 4), trichosporon asahii (n = 3), trichospor ...201323899001
subcutaneous infection associated with trichosporon ovoides: a case report and review of literature.trichosporon species are opportunistic yeasts which can cause infections, especially in immunocompromised patients. this is a report of trichosporon ovoides that caused subcutaneous infection in a patient with underlying ischemic heart disease. the identification of fungal isolate was confirmed by pcr sequencing of its and large subunit regions in rrna gene. in vitro susceptibility study showed that the isolate was susceptible to amphotericin b, fluconazole and voriconazole, and resistant to cas ...201626493614
trichosporon japonicum sp. nov. isolated from the air.a yeast strain isolated from the air in japan was found to represent a new species, and was named trichosporon japonicum. this species produced arthroconidia and appressoria. t. japonicum formed a cluster with the appressorium-forming species trichosporon inkin and trichosporon ovoides in a phylogenetic tree constructed using small-subunit rdna sequences. however, they had low relatedness to each other in dna-dna hybridization experiments. t. japonicum is distinguished from both t. inkin and t. ...19989828446
first report of trichosporon ovoides isolated from the home of a summer-type hypersensitivity pneumonitis patient.trichosporon species have been known to cause summer-type hypersensitivity pneumonitis (shp). during the isolation of yeasts from an shp patient's house, we recovered a strain belonging to the genus trichosporon. morphologically, the isolate produced rectangular arthroconidia when grown on corn meal agar. dna-dna hybridization experiments identified the isolate as t. ovoides. a slide agglutination test using specific factor sera demonstrated that the serotype of the strain was type ii. previousl ...19989719099
yeast populations on spanish fermented sausages.yeast populations on 24 lots of spanish fermented sausages, made by four factories (f1, f2 and f4, artisanal; f3, industrial) were investigated throughout manufacture and the influence of different variables evaluated. in addition, 41 yeast strains were identified at the species level using two miniaturised systems: atb32c (api system) and vitek yeast biochemical card (vitek ybc). levels of yeasts found in the sausage mixture (mean counts around 4 log units/g) were similar to those described by ...200022060689
molecular characterisation and antifungal susceptibility of clinical trichosporon isolates in india.in asian countries, trichosporon infection is a well-known disease in japan. in india, the infection is increasingly recognised. the study was conducted to characterise the clinical trichosporon isolates from india by phenotypic and molecular techniques. a total of 31 trichosporon clinical isolates, recovered from patients of 14 hospitals across india were sequenced (its and igs1 regions of rdna). in vitro drug susceptibility testing of the isolates was performed against amphotericin-b, fluconaz ...201627144725
profiling of dynamic changes in the microbial community during the soy sauce fermentation process.soy sauce is a traditional condiment manufactured by natural inoculation and mixed culture fermentation. as is well known, it is the microbial community that plays an important role in the formation of its flavors. however, to date, its dynamic changes during the long period of fermentation process are still unclear, intensively constraining the improvement and control of the soy sauce quality. in this work, we revealed the dynamic changes of the microbial community by combining a cultured depen ...201324037306
inhibitory effect of essential oils against trichosporon ovoides causing piedra hair infection.piedra, is an asymptomatic fungal infection of the hair shaft, resulting in the formation of nodules of different hardness on the infected hair. the infection also known as trichomycosis nodularis is a superficial fungal infection arising from the pathogen being restricted to the stratum corneum with little or no tissue reaction. the nodules are a concretion of hyphae and fruiting bodies of the fungus. two varieties of piedra may be seen, black piedra and white piedra. the fungus trichosporon ov ...201224031963
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