molecular variability of pseudallescheria boydii, a neurotropic opportunist.the sequences of the internal transcribed spacer (its) ribosomal dna (rdna) domain data obtained by restriction fragment length polymorphism analysis with 18s rdna and fingerprinting (m13) for clinical and environmental strains of pseudallescheria boydii (anamorph, scedosporium apiospermum) were compared to those for related species of pseudallescheria, petriella, and scedosporium. the infraspecific variability of p. boydii was considerable. there were five different lengths in the 18s rdnas wit ...200010970369
ym-193221, a novel antifungal antibiotic produced by pseudallescheria ellipsoidea.a novel antifungal antibiotic, ym-193221, was found in the culture broth of a fungus, pseudallescheria ellipsoidea. the structure of the antibiotic was determined through several spectroscopic experiments as 2-dimethylamino-1-(4-hydroxyphenyl)-8,10-dimethyl-6-dodecene-3-one. ym-193221 exhibited potent antifungal activity against candida albicans and also inhibited mannan synthesis in the yeast cell wall.200415580957
molecular phylogeny of the pseudallescheria boydii species complex: proposal of two new species.pseudallescheria boydii (anamorph scedosporium apiospermum) is the species responsible for human scedosporiosis, a fungal infection with a high mortality rate and which is difficult to treat. recently, it has been demonstrated that high genetic variation exists within this species. we have performed a morphological and molecular study involving numerous strains of clinical or environmental origins and from different countries. the analysis of partial sequences of the beta-tubulin (two loci) and ...200516207945
the effect of anatase and rutile crystallites isolated from titania p25 photocatalyst on growth of selected mould fungi.antifungal properties of anatase and rutile crystallites isolated from commercial titania p25 photocatalyst were investigated by mycelium growth in the dark and under indoor light. investigated fungi, i.e., pseudallescheria boydii, scedosporium apiospermum, pseudallescheria ellipsoidea, scedosporium aurantiacum, aspergillus versicolor, aspergillus flavus, stachybotrys chartarum, penicillium chrysogenum, aspergillus melleus, were isolated from air and from moisture condensed on walls. anatase and ...201526177513
effect of water activity and titania p25 photocatalyst on inactivation of pathogenic fungi--contribution to the protection of public health.the aim of this study was to determine the antifungal activity of titanium dioxide activated by indoor light on czapek yeast agar (cya).201526615661
structural analysis of glucosylceramides (glccer) from species of the pseudallescheria/scedosporium complex.glucosylceramides (glccer) are the main neutral glycosphingolipids expressed in fungal cells. in this work, glucosylceramides (glccer) were extracted from three strains of scedosporium (pseudallescheria) boydii, one strain of pseudallescheria ellipsoidea and one strain of pseudallescheria angusta and purified by several chromatographic steps. using high-performance thin layer chromatography (hptlc), we found a similarity between glccer obtained from all of the analysed strains. a detailed struct ...201626781373
susceptibility and diversity in the therapy-refractory genus scedosporium.scedosporium species show decreased susceptibility to the majority of systemic antifungal drugs. acquired resistance is likely to disseminate differentially with the mode of exchange of genetic material between lineages. inter- and intraspecific diversities of scedosporium species were analyzed for three partitions (rdna internal transcribed spacer gene [its], partial β-tubulin gene, and amplified fragment length polymorphism profiles), with the aim to establish distribution of resistance betwee ...201425070092
two additional new compounds from the marine-derived fungus pseudallescheria ellipsoidea f42-3.two additional new compounds, pseudellone d (1) and (5s,6s)-dihydroxylasiodiplodin (3), along with the two known compounds lasiodipline f (2), (5s)-hydroxylasiodiplodin (4) were isolated from the marine-derived fungus pseudallescheria ellipsoidea f42-3 associated with the soft coral lobophytum crassum. their structures, including absolute configurations, were elucidated on the basis of the corresponding spectroscopic data and electronic circular dichroism (ecd) spectra.201627043524
discriminative potential of some pcr-based and biochemical methods at scedosporium strains.three innovative pcr-based methods (fluorescent-its, fluorescent-cbh and its-pcr dgge) were tested using a reference set of nine strains of scedosporium from the cbs fungal collection. cellulolytic, lipolytic and proteolytic potential and the ability to dissolve caco3 of the strains were evaluated in vitro by means of agar assays. f-its profiles almost recognized main species, although included "pseudallescheria" ellipsoidea and the scedosporium boydii cbs 117432 and cbs 120157 in the same clust ...201626781371
semi-automated repetitive sequence-based pcr amplification for species of the scedosporium apiospermum complex.the scedosporium apiospermum species complex usually ranks second among the filamentous fungi colonizing the airways of patients with cystic fibrosis (cf), but little is known about the molecular epidemiology of the airway colonization.201626486722
pseudellones a-c, three alkaloids from the marine-derived fungus pseudallescheria ellipsoidea f42-3.pseudellones a and b (1 and 2), a pair of irregularly bridged epimonothiodiketopiperazine diastereomers constructed from unusual 3-indolylglycine and alanine residues, and an alkaloid pseudellone c (3) possessing a unique skeleton were isolated from the marine-derived fungus pseudallescheria ellipsoidea f42-3. their structures were determined by spectroscopic data, ecd calculation, and x-ray single crystal diffraction. the biogenetic pathways of 1-3 were proposed, and 1h-indole-3-carboxylic acid ...201526452138
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