| [capsule formation in saprophytic yeasts]. | among ten carbon sources and five nitrogen sources tested, d-mannose (3%) and peptone (0.2%) were found to be the best ones for stimulating capsule formation by the yeast cryptococcus magnus. addition of yeast extract (0.1%) to the medium favoured formation of larger capsules. elevated concentrations of mannose and peptone inhibited capsule formation. comparison of the results obtained with the data about the effect of cultivation conditions on capsule formation by the pathogenic yeast revealed ... | 1979 | 375043 |
| the effect of fungicides on yeast communities associated with grape berries. | the influence of three commonly used fungicides (iprodione, pyrimethanil and fludioxonil plus cyprodinil) on the density and diversity of yeast populations present on grape berries was evaluated. at the time of harvest, the fungicide residues on grapes were below the maximum permitted levels. in general, larger yeast counts were found on the treated grapes than on the control samples. among 23 species identified, cryptococcus magnus, rhodotorula glutinis and sporidiobolus pararoseus dominated on ... | 2010 | 20491940 |
| isolation of cryptococcus magnus and cryptococcus chernovii from nasal cavities of pediatric patients with acute lymphoblastic leukemia. | we report the isolation of cryptococcus magnus and cryptococcus chernovii in cultures inoculated with nasal specimens of pediatric cancer patients with acute lymphoblastic leukemia. the phenotypic characteristics of the isolates are described and their identity confirmed by sequencing of rdna. both species were resistant to caspofungin, anidulafungin, 5-flucytosine and itraconazole, but susceptible to amphotericin b, posaconazole and voriconazole. to the best of our knowledge, the isolation of t ... | 2010 | 20979444 |
| evaluation of fungal and yeast diversity in slovakian wine-related microbial communities. | since the yeast flora of slovakian enology has not previously been investigated by culture-independent methods, this approach was applied to two most common cultivars frankovka (red wine) and veltlin (white wine), and complemented by cultivation. model samples included grapes, initial must, middle fermenting must and must in the end-fermentation phase. the cultured isolates were characterized by length polymorphism of rdna spacer two region using fluorescence pcr and capillary electrophoresis (f ... | 2010 | 20556654 |
| first report of a cryptococcus magnus infection in a cat. | this report describes an uncommon case of cryptococcosis in an apparently immunocompetent cat caused by cryptococcus magnus. an amputation of the complete left foreleg and excision of the ipsilateral cervical lymph node were performed in a young-adult male domestic shorthair cat due to suspicion of a tumor. granulomatous dermatitis, panniculitis, myositis, and lymphadenitis were diagnosed histologically. intralesional, numerous round-to-ovoid yeast cells showing no capsule were detected within m ... | 2010 | 20513171 |
| yeasts associated with nectarines and their potential for biological control of brown rot. | resident fruit microflora has been the source of biocontrol agents for the control of postharvest decay of fruits and the active ingredient in commercialized biocontrol products. with the exception of grapes and apples, information on the resident microflora of other fruits is only fragmentary, but greater knowledge in this area can be very helpful in developing biocontrol strategies. we characterized the yeast microflora of nectarines ('croce del sud') from the early stages of fruit development ... | 2010 | 20225339 |
| yeast species associated with wine grapes in china. | having more information on the yeast ecology of grapes is important for wine-makers to produce wine with high quality and typical attributes. china is a significant wine-consuming country and is becoming a serious wine-producer, but little has been reported about the yeast ecology of local ecosystems. this study provides the first step towards the exploitation of the yeast wealth in china's vine-growing regions. the aim of this study was to investigate the yeast population density and diversity ... | 2010 | 20116124 |
| stability of microbial communities in goat milk during a lactation year: molecular approaches. | the microbial communities in milks from one herd were evaluated during 1-year of lactation, using molecular methods to evaluate their stability and the effect of breeding conditions on their composition. the diversity of microbial communities was measured using two approaches: molecular identification by 16s and 18s rdna sequencing of isolates from counting media (two milks), and direct identification using 16s rdna from clone libraries (six milks). the stability of these communities was evaluat ... | 2007 | 17604934 |
| yeasts in high arctic glaciers: the discovery of a new habitat for eukaryotic microorganisms. | recently a new habitat for microbial life has been discovered at the base of polythermal glaciers. in ice from these subglacial environments so far only non-photosynthetic bacterial communities were discovered, but no eukaryotic microorganisms. we found high numbers of yeast cells, amounting to a maximum of 4,000 cfu ml(-1) of melt ice, in four different high arctic glaciers. twenty-two distinct species were isolated, including two new yeast species. basidiomycetes predominated, among which cryp ... | 2007 | 17072534 |
| first isolation of cryptococcus magnus from a cat. | a 6-month-old male japanese domestic cat with otitis externa due to aspergillus fumigatus was treated with antifungal agents for 25 days and appeared to be cured. many yeast colonies however developed from the ear canal samples on sabouraud's dextrose agar at 27 degrees c for 5 days, instead of a. fumigatus. this yeast colony was cream-colored and slim in texture with smooth and highly glossy surface after 5-day incubation on sabouraud's dextrose agar at 27 degrees c. the isolate was identified ... | 2004 | 15180152 |
| [cytology of the dynamics of capsule formation in yeasts]. | changes in the dimensions and structure of capsules were examined using optical and electron microscopy in the yeast cryptococcus magnus producing extracellular polysaccharides in the course of its batch cultivation. the mean thickness of capsules was minimal in the period of active budding, but is rapidly increased later on. the dimensions of capsules, as well as the distribution density of capsule fibrils, were maximal at the beginning of the stationary growth phase. the results indicate that ... | 1982 | 7087814 |
| [the yeast community associated with the digestive tract of the german cockroach blattella germanica l]. | data on the yeasts colonizing the digestive tract ofa german cockroach have been first obtained. cockroach cultures are used in the commercial production of allergy vaccines to treat patients sensitized to cockroach allergens. the enteric microflora of the insects can bring nonshared antigens into the composition of the agents manufactured. an investigation established that out of 10 yeast species isolated from the digestive tract of the cockroaches fed sterile food, 6 species (candida glabrata, ... | 2011 | 21797061 |