Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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| biodegradation and utilization of 4-n-nonylphenol by aspergillus versicolor as a sole carbon and energy source. | 4-n-nonylphenol (4-n-np) is an environmental pollutant with endocrine-disrupting activities that is formed during the degradation of nonylphenol polyethoxylates, which are widely used as surfactants. utilization of 4-n-np by the filamentous fungus aspergillus versicolor as the sole carbon and energy source was investigated. by means of gas chromatography-mass spectrometry, we showed that in the absence of any carbon source other than 4-n-np in the medium, a. versicolor completely removed the xen ... | 2014 | 25222932 |
| aspergillines a-e, highly oxygenated hexacyclic indole-tetrahydrofuran-tetramic acid derivatives from aspergillus versicolor. | aspergillines a-e (1-5) are highly oxygenated cyclopiazonic acid (cpa)-derived alkaloids bearing a rigid and sterically congested hexacyclic indole-tetrahydrofuran-tetramate scaffold, isolated from the endophytic fungus aspergillus vesicolor. apergillines a-c represent a new subclass of cpa-derived alkaloids, and aspergillines b and e possess a butanoic acid methyl ester moiety. the structures, including absolute configuration, were elucidated by interpretation of the nmr, x-ray crystallographic ... | 2014 | 25226561 |
| psychrophilins e-h and versicotide c, cyclic peptides from the marine-derived fungus aspergillus versicolor zln-60. | four new cyclic peptides, psychrophilins e-h (1-4), possessing a rare amide linkage between the carboxylic acid in anthranilic acid (ata) and the nitrogen from an indole moiety, along with a new ata-containing hexapeptide, versicotide c (5), were obtained from the culture of the marine-derived fungus aspergillus versicolor zln-60. the structures, including absolute configurations, were elucidated by a combination of hresims, nmr, x-ray crystallography, tddft ecd calculations, and marfey's method ... | 2014 | 25246036 |
| quantification of c. globosum spores in house dust samples. | chaetomium globosum is one of the most common fungi that grows in damp buildings and occurs in agricultural and forestry workplaces. using sera from atopic patients, we characterized and purified an extracellular chitosanase (chg47) from c. globosum that is antigenic to humans. the study reports the production of monoclonal antibodies to the protein. three capture elisas were developed for chg47 for detection of spores and spore and mycelial fragments in dust samples using different mono- and po ... | 2014 | 25292122 |
| effects of fungal species, cultivation time, growth substrate, and air exposure velocity on the fluorescence properties of airborne fungal spores. | real-time bioaerosol monitoring is possible with fluorescence based instruments. this study provides information on major factors that can affect the fluorescence properties of airborne fungal spores. two fluorescence-based bioaerosol detectors, bioscout, and ultraviolet aerodynamic particle sizer (uvaps), were used to study fluorescent particle fractions (fpfs) of released spores of three fungal species (aspergillus versicolor, cladosporium cladosporioides, and penicillium brevicompactum). two ... | 2015 | 25292152 |
| antiviral butyrolactones from the endophytic fungus aspergillus versicolor. | versicolactones a-d (1-4), four new butyrolactones, along with four known butyrolactones (5-8) were isolated from the fermentation products of the endophytic fungus aspergillus versicolor. the structures of compounds 1-4, including absolute configuration, were elucidated by interpretation of the nmr and cd data. compound 2 was further confirmed by single-crystal x-ray diffraction analysis. in particular, compound 1 is the first naturally occurring butyrolactone possessing an unusual 2-oxopropyl ... | 2015 | 25590371 |
| versicolols a and b, two new prenylated isocoumarins from endophytic fungus aspergillus versicolor and their cytotoxic activity. | versicolols a and b (1 and 2), two rare prenylated isocoumarin derivatives, along with five known isocoumarins (3-7) were isolated from the fermentation products of an endophytic fungus aspergillus versicolor. their structures were elucidated on the basis of extensive spectroscopic analysis, including 1d- and 2d-nmr techniques. compounds 1 and 2 were evaluated for their cytotoxicity against five human tumor cell lines. the results showed that compounds 1 exhibited weak cytotoxicity against a549 ... | 2017 | 25749845 |
| biodegradation of pesticide triclosan by a. versicolor in simulated wastewater and semi-synthetic media. | triclosan is known as an antimicrobial agent, a powerful bacteriostat and an important pesticide. in this paper biodegradation of triclosan by aspergillus versicolor was investigated. effects of simulated wastewater and semi-synthetic media on fungal triclosan degradation process were detected. hplc analysis showed that fungal triclosan biodegradation yield was 71.91% at about 7.5 mg/l concentration in semi-synthetic medium and was 37.47% in simulated wastewater. fungus could be able to tolerate ... | 2015 | 25752427 |
| versicorin, a new lovastatin analogue from the fungus aspergillus versicolor sc0156. | a new lovastatin analogue versicorin (1), together with three related compounds, decumbenones a (2) and b (3) and versiol (4), were isolated from mycelial solid cultures of aspergillus versicolor sc0156. their structures were elucidated on the basis of ms data and nmr spectroscopic analysis. the new compound versicorin (1) possesses a hexahydro-2h-naphtho[1,8-bc]furan moiety, which is a rare type of the lovastatin-analogous compounds. a hypothetical biosynthetic pathway for compounds 1-4 was pro ... | 2015 | 25835225 |
| identification and biological evaluation of secondary metabolites from the endolichenic fungus aspergillus versicolor. | a chemical investigation of the endolichenic fungus aspergillus versicolor (125a), which was found in the lichen lobaria quercizans, resulted in the isolation of four novel diphenyl ethers, named diorcinols f-h (1-3, resp.) and 3-methoxyviolaceol-ii (4), eight new bisabolane sesquiterpenoids, named (-)-(r)-cyclo-hydroxysydonic acid (5), (-)-(7s,8r)-8-hydroxysydowic acid (6), (-)-(7r,10s)-10-hydroxysydowic acid (7), (-)-(7r,10r)-iso-10-hydroxysydowic acid (8), (-)-12-acetoxy-1-deoxysydonic acid ( ... | 2015 | 25879502 |
| fungi in ontario maple syrup & some factors that determine the presence of mold damage. | maple syrup is a high value artisanal product produced mainly in canada and a number of states primarily in the northeast usa. mold growth (wallemia sebi) on commercial product was first reported in syrup in 1908. since then, few data have been published. we conducted a systematic examination for fungi in maple syrup from 68 producers from all of the syrup-producing areas of ontario, canada. the mean ph of the samples was ph 6.82, sugar content averaged 68.0±0.89 °brix and aw averaged 0.841±0.01 ... | 2015 | 26001061 |
| maldi-tof mass spectrometry fingerprinting: a diagnostic tool to differentiate dematiaceous fungi stachybotrys chartarum and stachybotrys chlorohalonata. | stachybotrys chartarum and stachybotrys chlorohalonata are two closely related species. unambiguous identification of these two species is a challenging task if relying solely on morphological criteria and therefore smarter and less labor-intensive approaches are needed. here we show that even such closely related species of fungi as s. chartarum and s. chlorohalonata are unequivocally discriminated by their highly reproducible maldi-tof-ms fingerprints (matrix assisted laser desorption/ionizati ... | 2015 | 26036596 |
| sterigmatocystin presence in typical latvian grains. | ninety five samples of different latvian grains (wheat, buckwheat, barley, oats and rye) from the year 2006 and 120 samples from the year 2007 were analyzed for aspergillus ssp. mycotoxin-sterigmatocystin (stc) content. 13.7% of the analyzed 2006 year samples were positive for stc with the concentration levels ranging from <0.7 to 83μg/kg and 35% of the analyzed 2007 year samples were positive for stc with the concentration levels ranging from <1 to 47μg/kg. a previously developed sensitive lc - ... | 2008 | 26054287 |
| indirect immunodetection of fungal fragments by field emission scanning electron microscopy. | submicronic fungal fragments have been observed in in vitro aerosolization experiments. the occurrence of these particles has therefore been suggested to contribute to respiratory health problems observed in mold-contaminated indoor environments. however, the role of submicronic fragments in exacerbating adverse health effects has remained unclear due to limitations associated with detection methods. in the present study, we report the development of an indirect immunodetection assay that utiliz ... | 2015 | 26092450 |
| selection of enhanced antimicrobial activity posing lactic acid bacteria characterised by (gtg)5-pcr fingerprinting. | the aim of the study was a detail evaluation of genetic diversity among the lactic acid bacteria (lab) strains having an advantage of a starter culture in order to select genotypically diverse strains with enhanced antimicrobial effect on some harmfull and pathogenic microorganisms. antimicrobial activity of lab was performed by the agar well diffusion method and was examined against the reference strains and foodborne isolates of bacillus cereus, listeria monocytogenes, escherichia coli, staphy ... | 2014 | 26139877 |
| 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 ... | 2015 | 26177513 |
| fungal dna in dust in swedish day care centres: associations with respiratory symptoms, fractional exhaled nitrogen oxide (feno) and c-reactive protein (crp) in serum among day care centre staff. | to study associations between fungal dna in day care centres, fractional exhaled nitric oxide (feno) and inflammatory markers in day care centre staff. | 2016 | 26183154 |
| development and performance assessment of a qualitative sybr® green real-time pcr assay for the detection of aspergillus versicolor in indoor air. | currently, contamination of indoor environment by fungi and molds is considered as a public health problem. the monitoring of indoor airborne fungal contamination is a common tool to help understanding the link between fungi in houses and respiratory problems. classical analytical monitoring methods, based on cultivation and microscopic identification, depend on the growth of the fungi. consequently, they are biased by difficulties to grow some species on certain culture media and under certain ... | 2015 | 26184975 |
| aspergillus in endodontic infection near the maxillary sinus. | diseases of the maxillary sinus have been associated with dental roots near the maxillary sinus that have undergone endodontic treatment. | 2015 | 26254203 |
| erratum to: development and performance assessment of a qualitative sybr® green real-time pcr assay for the detection of aspergillus versicolor in indoor air. | 2015 | 26293339 | |
| microbiological consequences of indoor composting. | recycling of organic waste appeals to more and more people. the aim of this study was to evaluate the microbiological contamination around organic waste bins at three distances over a 12-month period. contamination near the customary trash of control households was evaluated at the beginning to ensure that there is no recruitment bias. air samples using the mas 100 impactor were carried out in 38 dwellings that do household waste composting and in 10 dwellings of controls. collection of particle ... | 2016 | 26299932 |
| development of the dichlorvos-ammonia (dv-am) method for the visual detection of aflatoxigenic fungi. | aflatoxins (afs) are carcinogenic and toxic secondary metabolites produced mainly by aspergillus flavus and aspergillus parasiticus. to monitor and regulate the af contamination of crops, a sensitive and precise detection method for these toxigenic fungi in environments is necessary. we herein developed a novel visual detection method, the dichlorvos-ammonia (dv-am) method, for identifying af-producing fungi using dv and am vapor on agar culture plates, in which dv inhibits the esterase in af bi ... | 2015 | 26300294 |
| efficient biotransformation of ginsenoside rb1 to rd by isolated aspergillus versicolor, excreting β-glucosidase in the spore production phase of solid culture. | ginsenosides are the major pharmacological components in ginseng. microorganisms from a ginseng field were isolated to identify transformation of ginsenosides. based on hplc and lc-ms analysis, strain lfj1403 showed strong activities to transform ginsenoside rb1 to rd as the sole product. phylogenetic analysis of 18s rdna indicated that lfj1403 belonged to aspergillus versicolor. through comparing four systems of transforming rb1 to rd, strain lfj1403 was found to secrete ginsenoside-converting ... | 2015 | 26373416 |
| versixanthones a-f, cytotoxic xanthone-chromanone dimers from the marine-derived fungus aspergillus versicolor hdn1009. | six unusual xanthone-chromanone dimers, versixanthones a-f (1-6), featuring different formal linkages of tetrahydroxanthone and 2,2-disubstituted chroman-4-one monomers, were isolated from a culture of the mangrove-derived fungus aspergillus versicolor hdn1009. the absolute configurations of 1-6, representing the central and axial chirality elements or preferred helicities, were established by a combination of x-ray diffraction analysis, chemical conversions, and tddft-ecd calculations. the inte ... | 2015 | 26506221 |
| detection of boron removal capacities of different microorganisms in wastewater and effective removal process. | in this study boron removal capacities of different microorganisms were tested. candida tropicalis, rhodotorula mucilaginosa, micrococcus luteus, bacillus thuringiensis, bacillus cereus, bacillus megaterium, bacillus pumilus, pseudomonas aeruginosa and aspergillus versicolor were examined for their boron bioaccumulation capacities in simulated municipal wastewater. a. versicolor and b. cereus were found as the most boron-tolerant microorganisms in the experiments. also boron bioaccumulation yiel ... | 2015 | 26540546 |
| 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). | 2015 | 26615661 |
| avertoxins a-d, prenyl asteltoxin derivatives from aspergillus versicolor y10, an endophytic fungus of huperzia serrata. | aspergillus versicolor y10 is an endophytic fungus isolated from huperzia serrata, which showed inhibitory activity against acetylcholinesterase. an investigation of the chemical constituents of y10 led to the isolation of four new prenylated asteltoxin derivatives, named avertoxins a-d (2-5), together with the known mycotoxin asteltoxin (1). in the present study, we report structure elucidation for 2-5 and the revised nmr assignments for asteltoxin and demonstrated that avertoxin b (3) is an ac ... | 2015 | 26618211 |
| exploring the antibacterial and antifungal potential of jellyfish-associated marine fungi by cultivation-dependent approaches. | fungi isolated from marine invertebrates are of considerable importance as new promising sources of unique secondary metabolites with significant biomedical potential. however, the cultivable fungal community harbored in jellyfish was less investigated. in this work, we seek to recover symbiotic fungi from different tissues of jellyfish nemopilema nomurai. a total of seven morphotypes were isolated, which were assigned into four genera (aspergillus, cladosporium, purpureocillium, and tilletiopsi ... | 2015 | 26637162 |
| antimicrobial properties of black grape (vitis vinifera l.) peel extracts against antibiotic-resistant pathogenic bacteria and toxin producing molds. | black grape peel possesses a substantial amount of polyphenolic antimicrobial compounds that can be used for controlling the growth of pathogenic microorganisms. the purpose of this study was to assess antibacterial and antifungal activity of black grape peel extracts against antibiotic-resistant pathogenic bacteria and toxin producing molds, respectively. | 2017 | 26729960 |
| release and characteristics of fungal fragments in various conditions. | intact spores and submicrometer size fragments are released from moldy building materials during growth and sporulation. it is unclear whether all fragments originate from fungal growth or if small pieces of building materials are also aerosolized as a result of microbial decomposition. in addition, particles may be formed through nucleation from secondary metabolites of fungi, such as microbial volatile organic compounds (mvocs). in this study, we used the elemental composition of particles to ... | 2016 | 26789361 |
| rhinitis, ocular, throat and dermal symptoms, headache and tiredness among students in schools from johor bahru, malaysia: associations with fungal dna and mycotoxins in classroom dust. | there are few studies on rhinitis and sick building syndrome (sbs) among students in tropical countries. we studied associations between levels of five fungal dna sequences, two mycotoxins (sterigmatocystin and verrucarol) and cat allergen (fel d 1) levels in schools and rhinitis and other weekly sbs symptoms in the students. fungal dna was measured by quantitative pcr and cat allergen by elisa. pupils (n = 462) from eight randomly selected schools in johor bahru, malaysia participated (96%). du ... | 2016 | 26829324 |
| bioactivity, proximate, mineral and volatile profiles along the flowering stages of opuntia microdasys (lehm.): defining potential applications. | opuntia spp. flowers have been traditionally used for medical purposes, mostly because of their diversity in bioactive molecules with health promoting properties. the proximate, mineral and volatile compound profiles, together with the cytotoxic and antimicrobial properties were characterized in o. microdasys flowers at different maturity stages, revealing several statistically significant differences. o. microdasys stood out mainly for its high contents of dietary fiber, potassium and camphor, ... | 2016 | 26876160 |
| generation and characterization of indoor fungal aerosols for inhalation studies. | in the indoor environment, people are exposed to several fungal species. evident dampness is associated with increased respiratory symptoms. to examine the immune responses associated with fungal exposure, mice are often exposed to a single species grown on an agar medium. the aim of this study was to develop an inhalation exposure system to be able to examine responses in mice exposed to mixed fungal species aerosolized from fungus-infested building materials. indoor airborne fungi were sampled ... | 2016 | 26921421 |
| a biochar-based medium in the biofiltration system: removal efficiency, microorganism propagation, and the medium penetration modeling. | biofiltration is a method of biological treatment belonging to cleaner technologies because it does not produce secondary air pollutants, but helps to integrate natural processes in microorganisms for decomposing volatile air pollutants and solving odor problems. the birch wood biochar has been chosen as a principal material for biofilter bed medium. the experiments were conducted at the temperatures of 24, 28, and 32 °c, while the concentration of acetone, xylene, and ammonium reached 300 mg/m( ... | 2016 | 26980677 |
| antifungal new oxepine-containing alkaloids and xanthones from the deep-sea-derived fungus aspergillus versicolor scsio 05879. | phytopathogenic fungi remain a continuous and huge threat in the agricultural fields. the agrochemical industry has made great development of the use of microbial natural products, which has been regarded as an effective strategy against phytopathogenic fungi. antifungal bioassay-directed fractionation was used to isolate two new oxepine-containing alkaloids (1 and 2), two new 4-aryl-quinolin-2-one alkaloids (3 and 4), and four new prenylated xanthones (5-8) from the deep-sea-derived fungus aspe ... | 2016 | 26998701 |
| microbial contamination level of air in animal waste utilization plants. | the aim of this research was evaluation of microbial contamination of air within and in the vicinity of animal waste disposal plants. | 2016 | 27007517 |
| how to diagnose mould allergy? comparison of skin prick tests with specific ige results. | diagnosis of mould allergy is complicated due to the heterogeneity of the test material and the decrease in the number of commercial mould skin test solutions that are currently available. | 2016 | 27027397 |
| extracellular polysaccharide with novel structure and antioxidant property produced by the deep-sea fungus aspergillus versicolor n2bc. | an extracellular polysaccharide, n1, was obtained from the culture medium of the deep-sea fungus aspergillus versicolor n2bc by a combination of ethanol precipitation, ion-exchange and gel filtration chromatography. n1 was a mannoglucogalactan with molecular weight of about 20.5kda. results of chemical and spectroscopic analyses, including fourier-transform infrared, one- and two-dimensional nuclear magnetic resonance spectroscopy showed that the main chain of n1 consisted of →2)-α-d-glcp-(1→, → ... | 2016 | 27178933 |
| pharmacokinetic/pharmacodynamic analysis of voriconazole against candida spp. and aspergillus spp. in children, adolescents and adults by monte carlo simulation. | the objective of this study was to investigate the cumulative fraction of response of various voriconazole dosing regimens against six candida and six aspergillus spp. in immunocompromised children, immunocompromised adolescents, and adults. using pharmacokinetic parameters and pharmacodynamic data, 5000-subject monte carlo simulations (mcss) were conducted to evaluate the ability of simulated dosing strategies in terms of fauc/mic targets of voriconazole. according to the results of the mcss, c ... | 2016 | 27179818 |
| biochemical characterization and antimicrobial and antifungal activity of two endemic varieties of garlic (allium sativum l.) of the campania region, southern italy. | extracts of the bulbs of the two endemic varieties "rosato" and "caposele" of allium sativum of the campania region, southern italy, were analyzed. the phenolic content, ascorbic acid, allicin content, and in vitro antimicrobial and antifungal activity were determined. ultra performance liquid chromatography with diode array detector performed polyphenol profile. the polyphenolic extracts showed antioxidant activity (ec50) lower than 120 mg. the amount of ascorbic acid and allicin in the two ext ... | 2016 | 27259073 |
| synthesis of psychrophilin e. | the first total synthesis of psychrophilin e, a potent antiproliferative cyclic tripeptide isolated from aspergillus versicolor zln-60, is reported herein. key features of the synthesis include the installation of an amide bond between the indole-nitrogen of tryptophan and an anthranilic acid residue, and a high yielding macrolactamization of the linear tripeptide to the desired macrocycle. | 2016 | 27442351 |
| versicones e-h and arugosin k produced by the mangrove-derived fungus aspergillus versicolor hdn11-84. | four new xanthonoids, versicones e-h (1-4), and a biogenetically related new derivative arugosin k (5), were isolated from a culture extract of the mangrove-derived fungus aspergillus versicolor hdn11-84. their structures were elucidated on the basis of extensive nmr spectroscopic data analysis. versicone e (1) represents the first example of naturally occurring xanthonoids containing a 2-butenamide moiety. among them, 5 showed the best cytotoxicity against hela cell line with an ic50 value of 9 ... | 2017 | 27460761 |
| the capability of fungi isolated from moldy dwellings to produce toxins. | the main objective was analysis and assessment of toxinogenic capabilities of fungi isolated from moldy surfaces in residential rooms in an urban agglomeration situated far from flooded areas in moderate climate zone. | 2016 | 27518891 |
| occurrence of the toxin-producing aspergillus versicolor tiraboschi in residential buildings. | in an area representative of a moderate climate zone (lubuskie province in poland), mycological tests in over 270 flats demonstrated the occurrence of 82 species of moulds. aspergillus versicolor tiraboschi was often encountered on building partitions (frequency 4: frequently). the ability to synthesize the carcinogenic sterigmatocystin (st) means that it poses a risk to humans and animals. biotoxicological tests of biomasses of a. versicolor were conducted in the microbiological and toxicologic ... | 2016 | 27589778 |
| aspergillus fumigatus carrying tr34/l98h resistance allele causing complicated suppurative otitis media in tanzania: call for improved diagnosis of fungi in sub-saharan africa. | suppurative otitis media (som) is a major public health concern worldwide and is associated with increased morbidity. cases of fungal suppurative otitis media were studied to establish the effect of fungi in otitis media. | 2016 | 27589956 |
| pereskia aculeata muller (cactaceae) leaves: chemical composition and biological activities. | the aims of this work were to study the chemical composition of the essential oil from the leaves of pereskia aculeata and to evaluate some biological activities of three leaf extracts. the phenolic content, antioxidant activity, and in vitro antimicrobial and antifungal activities were determined. the methanol extract showed antioxidant activity (ec50 7.09 mg/ml) and high polyphenols content (15.04 ± 0.31 mg gallic acid equivalents (gae)/g). the petroleum ether extract exhibited potent antibact ... | 2016 | 27598154 |
| aspernolides l and m, new butyrolactones from the endophytic fungus aspergillus versicolor. | during the systematic search of active compounds from endophytic fungi, two new butyrolactones, namely aspernolides l (2) and m (4), together with four known compounds: 1-o-acetylglycerol (1), butyrolactone i (3), butyrolactone vi (5), and (+) alantrypinone (6) were characterized from the etoac extract of the endophytic fungus aspergillus versicolor isolated from the roots of pulicaria crispa (asteraceae). extensive spectroscopic analysis, including 1d, 2d nmr, and hresims, was used to elucidate ... | 2016 | 27658145 |
| species diversity of aspergillus section versicolores in clinical samples and antifungal susceptibility. | aspergillus section versicolores includes species of clinical relevance and many others that have been poorly studied but are occasionally found in clinical samples. the aim of this study was to investigate, using a multilocus phylogenetic approach, the spectrum of species of the section versicolores and to determine their in vitro antifungal susceptibility. the study was based on a set of 77 clinical isolates from different usa medical centres, which had been previously identified as belonging ... | 2016 | 27742099 |
| arabidopsis thaliana as bioindicator of fungal vocs in indoor air. | in this paper, we demonstrate the ability of arabidopsis thaliana to detect different mixtures of volatile organic compounds (vocs) emitted by the common indoor fungus, aspergillus versicolor, and demonstrate the potential usage of the plant as a bioindicator to monitor fungal vocs in indoor air. we evaluated the volatile production of aspergillus versicolor strains srrc 108 (nrrl 3449) and srrc 2559 (atcc 32662) grown on nutrient rich fungal medium, and grown under conditions to mimic the subst ... | 2016 | 27790067 |
| respiratory symptoms and fractional exhaled nitric oxide (feno) among students in penang, malaysia in relation to signs of dampness at school and fungal dna in school dust. | few health studies exist on dampness and mould in schools in the tropics. we studied associations between fraction of exhaled nitric oxide (feno), respiratory symptoms and airway infections among students and dampness and fungal dna in schools in malaysia. a total of 368 randomly selected students from 32 classrooms in 8 secondary schools in penang, malaysia, participated (58% participation rate). information on current respiratory symptoms and the home environment was collected by a standardise ... | 2017 | 27802882 |
| development of a dot-blot assay for the detection of mould-specific ige in the belgian population. | data on mould sensitization in the general population are scarce and mostly on aspergillus fumigatus, alternaria alternata and cladosporium herbarum. | 2017 | 27878528 |
| versiquinazolines a-k, fumiquinazoline-type alkaloids from the gorgonian-derived fungus aspergillus versicolor lzd-14-1. | eleven fumiquinazoline-type alkaloids, namely, versiquinazolines a-k (1-11), along with cottoquinazolines b-d, were isolated from the gorgonian-derived fungus aspergillus versicolor lzd-14-1. their structures were determined by extensive analyses of the spectroscopic data (1d and 2d nmr, hresims), in addition to the experimental and calculated ecd data and x-ray single-crystal diffraction analysis for the assignments of the absolute configurations. versiquinazolines a, b, and f (1, 2, and 6), be ... | 2016 | 27933898 |
| assessment of multi-contaminant exposure in a cancer treatment center: a 2-year monitoring of molds, mycotoxins, endotoxins, and glucans in bioaerosols. | indoor air quality in health care facilities is a major public health concern, particularly for immunocompromised patients who may be exposed to microbiological contaminants such as molds, mycotoxins, endotoxins, and (1,3)-ß-d-glucans. over 2 years, bioaerosols were collected on a monthly basis in a cancer treatment center (centre f. baclesse, normandy, france), characterized from areas where there was no any particular air treatment. results showed the complexity of mycoflora in bioaerosols wit ... | 2017 | 28012082 |
| modeling growth and toxin production of toxigenic fungi signaled in cheese under different temperature and water activity regimes. | the aim of this study was to investigate in vitro and model the effect of temperature (t) and water activity (aw) conditions on growth and toxin production by some toxigenic fungi signaled in cheese. aspergillus versicolor, penicillium camemberti, p. citrinum, p. crustosum, p. nalgiovense, p. nordicum, p. roqueforti, p. verrucosum were considered they were grown under different t (0-40 °c) and aw (0.78-0.99) regimes. the highest relative growth occurred around 25 °c; all the fungi were very susc ... | 2016 | 28029129 |
| enzymatic activity of fungi isolated from crops. | to detect and assess the activity of extracellular hydrolytic enzymes and to find differences in enzymograms between fungi isolated from wheat and rye samples and grown on czapek-dox broth and sabouraud dextrose broth enriched with cereal (wheat or rye). isolated strains were also classified in the scale of biosafety levels (bsl). | 2016 | 28035224 |
| the pygidial gland secretion of the forest caterpillar hunter, calosoma (calosoma) sycophanta: the antimicrobial properties against human pathogens. | recently, various insect secretions have been tested as possible antimicrobial agents. in beetles, these secretions are essentially products of various exocrine glands, of which particular emphasis is on pygidial glands that are common for the suborder adephaga. the antimicrobial potential of the pygidial gland secretion isolated from the adults of calosoma sycophanta against human pathogens has been tested and compared with the potential of other carabid species, particularly within the tribe c ... | 2017 | 28070663 |
| new compounds from a hydrothermal vent crab-associated fungus aspergillus versicolor xz-4. | three new quinazoline derivatives (1-3), one new oxepin-containing natural product (4) and four new cyclopenin derivatives (5-7 and 9) have been isolated from an etoac extract of the taiwan kueishantao hydrothermal vent crab-associated fungus aspergillus versicolor xz-4. their planar structures were established by hrms, 1d and 2d nmr spectroscopic data analyses. the absolute configurations for compounds 1 and 4 were determined by chiral phase hplc analysis of their hydrolysis products. the absol ... | 2017 | 28074949 |
| matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for rapid identification of fungal rhinosinusitis pathogens. | filamentous fungi are among the most important pathogens, causing fungal rhinosinusitis (frs). current laboratory diagnosis of frs pathogens mainly relies on phenotypic identification by culture and microscopic examination, which is time consuming and expertise dependent. although matrix-assisted laser desorption/ionization time-of-flight (maldi-tof) ms has been employed to identify various fungi, its efficacy in the identification of frs fungi is less clear. | 2017 | 28100314 |
| anti-hsv-1, antioxidant and antifouling phenolic compounds from the deep-sea-derived fungus aspergillus versicolor scsio 41502. | chemical investigation of the deep-sea-derived fungus aspergillus versicolor scsio 41502 resulted in the isolation of three new anthraquinones, aspergilols g-i (1-3), one new diphenyl ether, 4-carbglyceryl-3,3'-dihydroxy-5,5'-dimethyldiphenyl ether (4), and one new benzaldehyde derivative, 2,4-dihydroxy-6-(4-methoxy-2-oxopentyl)-3-methylbenzaldehyde (5), along with 23 known phenolic compounds (6-28). the structures of new compounds were elucidated by extensive spectroscopic analysis. the absolut ... | 2017 | 28129981 |
| development of a novel compound microbial agent for degradation of kitchen waste. | large quantities of kitchen waste are produced in modern society and its disposal poses serious environmental and social problems. the aim of this study was to isolate degradative strains from kitchen waste and to develop a novel and effective microbial agent. one hundred and four strains were isolated from kitchen waste and the 84 dominant strains were used to inoculate protein-, starch-, fat- and cellulose-containing media for detecting their degradability. twelve dominant strains of various s ... | 2017 | 28279600 |
| endophytic fungal isolate mediated biosynthesis of silver nanoparticles and their free radical scavenging activity and anti microbial studies. | the present study reports that the biosynthesis of agnps using an endophytic fungus isolated from the ethnomedicinal plant centella asiatica. the endophytic fungus was identified as aspergillus versicolor ent7 based on 18s rrna gene sequencing (ncbi accession number kf493864). the agnps synthesized were characterized by uv-visible spectroscopy, fourier transform infra-red spectroscopy (ftir), transmission electron microscopy (tem), x-ray diffraction (xrd), particle size analyzer, and zeta potent ... | 2016 | 28330204 |
| fungal biodiversity and mycotoxigenic fungi in cooling-tower water systems in istanbul, turkey. | this is the first study to assess fungal diversity and mycotoxigenic fungi in open recirculating cooling-tower (ct) water systems (biofilm and water phase). the production capability of mycotoxin from fungal isolates was also examined. the mean fungal count in 21 different water and biofilm samples was determined as 234 cfu/100 ml and 4 cfu/cm(2). a total of 32 species were identified by internal transcribed spacer (its) sequencing. the most common isolated fungi belonged to the genera aspergill ... | 2017 | 28362312 |
| investigation of inflammatory and allergic responses to common mold species: results from in vitro experiments, from a mouse model of asthma, and from a group of asthmatic patients. | most studies on molds focus on alternaria alternata and aspergillus fumigatus. here, we report on inflammatory and allergenic properties of more typical indoor species aspergillus versicolor, p. chrysogenum, c. cladosporioïdes, and c. sphaerospermum that were compared to a. alternata and a. fumigatus. in a mouse model, after intranasal instillation, a. alternaria, a. versicolor, and c. sphaerospermum induced the early recruitment of neutrophils and the strong expression of inflammatory markers i ... | 2017 | 28370571 |
| discrimination of three genetically close aspergillus species by using high resolution melting analysis applied to indoor air as case study. | indoor air pollution caused by fungal contamination is suspected to have a public health impact. monitoring of the composition of the indoor airborne fungal contaminants is therefore important. to avoid problems linked to culture-dependent protocols, molecular methods are increasingly being proposed as an alternative. among these molecular methods, the polymerase chain reaction (pcr) and the real-time pcr are the most frequently used tools for indoor fungal detection. however, even if these tool ... | 2017 | 28376723 |
| antimicrobial activity and chemical composition of brunfelsia uniflora flower oleoresin extracted by supercritical carbon dioxide. | brunfelsia genus is traditionally utilized in popular medicine due to its antibacterial and antifungal properties to name but a few. however, studies on the antimicrobial activity of brunfelsia uniflora flower oleoresin have not been found yet. this study aimed to evaluate the chemical composition and antimicrobial activity of b. uniflora flower oleoresin obtained by supercritical carbon dioxide. oleoresin from the plant dried flowers was obtained by carbon dioxide, and the chemical composition ... | 2017 | 28407186 |
| contribution of filamentous fungi to the musty odorant 2,4,6-trichloroanisole in water supply reservoirs and associated drinking water treatment plants. | in this study, the distribution of 2,4,6-trichloroanisole (2,4,6-tca) in two water supply reservoirs and four associated drinking water treatment plants (dwtps) were investigated. the 2,4,6-tca concentrations were in the range of 1.53-2.36 ng l(-1) in water supply reservoirs and 0.76-6.58 ng l(-1) at dwtps. to determine the contribution of filamentous fungi to 2,4,6-tca in a full-scale treatment process, the concentrations of 2,4,6-tca in raw water, settled water, post-filtration water, and fini ... | 2017 | 28499183 |
| free chlorine and monochloramine inactivation kinetics of aspergillus and penicillium in drinking water. | fungi are near-ubiquitous in potable water distribution systems, but the disinfection kinetics of commonly identified fungi are poorly studied. in the present study, laboratory scale experiments were conducted to evaluate the inactivation kinetics of aspergillus fumigatus, aspergillus versicolor, and penicillium purpurogenum by free chlorine and monochloramine. the observed inactivation data were then fit to a delayed chick-watson model. based on the model parameter estimation, the ct values (in ... | 2017 | 28501787 |
| antimicrobial activity and molecular docking studies of a novel anthraquinone from a marine-derived fungus aspergillus versicolor. | a novel anthraquinone, 2-(dimethoxymethyl)-1-hydroxyanthracene-9,10-dione (1), together with nine known compounds (2-10), were isolated from the fermentation of aspergillus versicolor derived from deep sea sediment. their structures were established through spectroscopic methods. compound 1 exhibited strong inhibitory activities against mrsa atcc 43300 and mrsa cgmcc 1.12409 (with mic values of 3.9 and 7.8 μg/ml respectively) and moderate activities against tested strains of vibrio (with mic val ... | 2017 | 28511613 |
| antifungal and antiviral cyclic peptides from the deep-sea-derived fungus simplicillium obclavatum eiodsf 020. | a new linear peptide simplicilliumtide i (1) and four new cyclic peptides simplicilliumtides j-m (2-5) together with known analogues verlamelins a and b (6 and 7) were isolated from the deep-sea-derived fungal strain simplicillium obclavatum eiodsf 020. their structures were elucidated by spectroscopic analysis, and their absolute configurations were further confirmed by chemical structural modification, marfey's and mosher's methods. compounds 2, 6, and 7 showed significant antifungal activity ... | 2017 | 28578573 |
| aerosolization of mycotoxins after growth of toxinogenic fungi on wallpaper. | many fungi can develop on building material in indoor environments if moisture is high enough. among species that are frequently observed, some are known to be potent mycotoxin producers. this presence of toxinogenic fungi in indoor environments raises the question of the possible exposure of occupants to these toxic compounds by inhalation after aerosolization.this study investigated the mycotoxin production by penicillium brevicompactum, aspergillus versicolor and stachybotrys chartarum during ... | 2017 | 28646113 |
| ecology and identification of environmental fungi and metabolic processes involved in the biodeterioration of brazilian soapstone historical monuments. | the present study aimed to evaluate the action of organic acids produced by the fungal population associated with the biodeterioration process of the twelve prophets of aleijadinho, a set of soapstone sculptures in congonhas, state of minas gerais, brazil. for this, samples of fungi were obtained from the surface of each of the twelve outdoor stone sculptures that comprise the set of prophets. identification of the colonizing filamentous fungi was performed by classical microbiology and molecula ... | 2017 | 28833313 |
| [a new cytotoxic isocoumarin from endophytic fungus aspergillus versicolor]. | a new isocoumarin, along with five known ones,were isolated from the fermentation products of an endophytic fungus aspergillus versicolorby using various chromatographic techniques.their structures were elucidated on the basis of extensivespectroscopic analysis, including 1d-and 2d-nmr techniques. compound 1 was evaluated for cytotoxicity against five human tumor cell lines. the results showed that 1 exhibited weak cytotoxicityagainst nb4, shsy5y and mcf7 cells with ic₅₀ values of 6.8, 4.3,8.8 μ ... | 2016 | 28845647 |