| determination of microbial volatile organic compounds (mvocs) by passive sampling onto charcoal sorbents. | passive sampling combined with gc-ms was applied for the detection of microbial volatile organic compounds (mvocs) emitted by mould cultures. the fungi species penicillium expansum, penicillium chrysogenum, penicillium brevicompactum, aspergillus fumigatus, aspergillus versicolor, aspergillus niger, and cladosporium cladosporoides were cultivated on dichloran glycerol agar. the emitted volatiles were collected by charcoal-based passive diffusion monitors during the first four weeks of growth. se ... | 2009 | 19289243 |
| onychomycosis caused by aspergillus versicolor. | we report a case of onychomycosis caused by aspergillus versicolor in a 66-year-old female patient. the infection was characterised clinically by yellowish pigmentation of the nail plate and mild nail bed hyperkeratosis of the first left toe. all other nails were normal. three direct microscopical examinations of nail samples revealed the presence of hyaline hyphae as well as conidiophores. pure colonies of a. versicolor were found in three cultures. the patient was successfully treated with ora ... | 2010 | 19422523 |
| indoor fungal contamination of moisture-damaged and allergic patient housing analysed using real-time pcr. | the aim of our study was to compare, using real-time (rt) pcr, quantitative levels of five fungal species in three kinds of dwellings. | 2009 | 19486284 |
| effect of glycosylation on the biochemical properties of beta-xylosidases from aspergillus versicolor. | aspergillus versicolor grown on xylan or xylose produces two beta-xylosidases with differences in biochemical properties and degree of glycosylation. we investigated the alterations in the biochemical properties of these beta-xylosidases after deglycosylation with endo-h or pngase f. after deglycosylation, both enzymes migrated faster in page or sds-page exhibiting the same r(f). temperature optimum of xylan-induced and xylose-induced beta-xylosidases was 45 degrees c and 40 degrees c, respectiv ... | 2009 | 19557344 |
| brevianamide j, a new indole alkaloid dimer from fungus aspergillus versicolor. | brevianamide j (1), a new indole alkaloid dimer, was isolated together with four new diketopiperazine alkaloids (brevianamide k-n, 2-5) from the solid-state fermented culture of aspergillus versicolor. their structures were elucidated on the basis of spectral data. x-ray crystallographic analysis confirmed the structures of 1 and 4. | 2009 | 19627104 |
| comparison of techniques to examine the diversity of fungi in adult patients with cystic fibrosis. | this study compares conventional and molecular techniques for the detection of fungi in 77 adult cystic fibrosis (cf) patients. three different methods were investigated, i.e., (1) conventional microbiological culture (including yeasts and filamentous fungi), (2) mycological culture with cf-derived fungal specific culture media, and (3) non-culture and direct dna extraction from patient sputa. fungi isolated from environmental air samples of the cf unit were compared to fungi in sputa from cf pa ... | 2010 | 19672783 |
| patterns of susceptibility of aspergillus isolates recovered from patients enrolled in the transplant-associated infection surveillance network. | we analyzed antifungal susceptibilities of 274 clinical aspergillus isolates from transplant recipients with proven or probable invasive aspergillosis collected as part of the transplant-associated infection surveillance network (transnet) and examined the relationship between mic and mortality at 6 or 12 weeks. antifungal susceptibility testing was performed by the clinical and laboratory standards institute (clsi) m38-a2 broth dilution method for amphotericin b (amb), itraconazole (itr), voric ... | 2009 | 19692558 |
| effective bioremoval of reactive dye and heavy metals by aspergillus versicolor. | in this study, bioaccumulation of heavy metal and dye by aspergillus versicolor was investigated. optimum ph values of the maximum heavy metal bioaccumulation was found as 6 for 50mg/l cr(vi), ni(ii) and 5 for cu(ii) ions with the 99.89%, 30.05% and 29.06% removal yield, respectively. the bioremoval of the dye up to 800 mg/l at ph 5 and 6 was investigated and 27.15% and 28.95% removal rates were measured respectively. the presence of cr(vi) with dye, decreased the uptake yield for both pollutant ... | 2010 | 19773159 |
| use of zero-valent iron nanoparticles in inactivating microbes. | nanoscale zero-valent iron (nzvi) particles were investigated in inactivating gram-positive bacillus subtilis var. niger and gram-negative pseudomonas fluorescens bacteria, and the fungus aspergillus versicolor. nzvi particles were synthesized using nabh(4) and fe(no(3))(3).9h(2)o, and the microbial suspensions were subjected to the treatments of nzvi particle suspensions with concentrations of 0.1, 1 and 10mg/ml for 5min. field emission scanning electron microscope (fe-sem) was used to characte ... | 2009 | 19783027 |
| jem spotlight: fungi, mycotoxins and microbial volatile organic compounds in mouldy interiors from water-damaged buildings. | concerns have been raised about exposure to mycotoxin producing fungi and the microbial volatile organic compounds (mvocs) they produce in indoor environments. therefore, the presence of fungi and mycotoxins was investigated in 99 samples (air, dust, wallpaper, mycelium or silicone) collected in the mouldy interiors of seven water-damaged buildings. in addition, volatile organic compounds (vocs) were sampled. the mycotoxins were analysed by liquid chromatography-tandem mass spectrometry (lc-ms/m ... | 2009 | 19809708 |
| cerebral mycosis: 7-year retrospective series in a tertiary center. | this study focuses on the epidemiology, clinical manifestations, risk factors, diagnosis and outcome of all cases of central nervous system (cns) fungal infections in a tertiary center. medical records of 18 patients of culture-proven cns fungal infections were retrospectively reviewed from 2000 to 2007, including 12 isolated from the cerebrospinal fluid (csf) and seven from tissue biopsy. patient demographic data included 10 males and eight females. the mean age was 55 years (range: 24-89 years ... | 2010 | 19845862 |
| dna damage and dna damage responses in thp-1 monocytes after exposure to spores of either stachybotrys chartarum or aspergillus versicolor or to t-2 toxin. | we have characterized cell death in thp-1 cells after exposure to heat-treated spores from satratoxin g-producing stachybotrys chartarum isolate ibt 9631, atranone-producing s. chartarum isolate ibt 9634, and sterigmatocystin-producing aspergillus versicolor isolate ibt 3781, as well as the trichothecenes t-2 and satratoxin g. spores induced cell death within 3-6 h, with stachybotrys appearing most potent. ibt 9631 induced both apoptosis and necrosis, while ibt 9634 and ibt 3781 induced mostly n ... | 2010 | 20150440 |
| stereoselective hydrogenation on the exocyclic and conjugated double bond of sesquiterpene lactones by aspergillus versicolor d-1. | aspergillus versicolor d-1 was employed to convert dehydrocostuslactone (1) and 3-hydroxy-1(10),3,11(13)-guaiatriene-12,6-olide-2-one (5) stereoselectively. the reactions occurring were specific hydrogenation on the exocyclic alpha,beta-double bond of sesquiterpene lactones with excellent conversion. products were identified by the analysis of their spectra such as uv, ir, ms, (1)h, (13)c nmr, and noesy, and the structure of one new compound was elucidated. the characteristic of the stereoselect ... | 2009 | 20183266 |
| bioactive metabolites from the sponge-derived fungus aspergillus versicolor. | as part of an ongoing search for bioactive metabolites from the fungus aspergillus versicolor derived from a marine sponge petrosia sp., an aromatic polyketide derivative (1), two xanthones (2 and 3), and five anthraquinones (4-8) were isolated by bioactivity-guided fractionation. the gross structures were determined based on the nmr and ms spectroscopic data, and the absolute configurations were defined by comparison of optical rotation data with those of reported. compounds 2, 4, 5, and 7 exhi ... | 2010 | 20195823 |
| wild-type minimum effective concentration distributions and epidemiologic cutoff values for caspofungin and aspergillus spp. as determined by clinical and laboratory standards institute broth microdilution methods. | antifungal susceptibility testing of aspergillus spp. against caspofungin has been standardized by the clinical and laboratory standards institute (clsi). recent studies have documented breakthrough infections with aspergillus spp. for which the minimum effective concentration (mec) for caspofungin ranged from 0.25 to 8 microg/ml. we tested a collection of 1590 clinical isolates of aspergillus spp. (188 aspergillus flavus, 1187 aspergillus fumigatus, 114 aspergillus niger, 71 aspergillus terreus ... | 2010 | 20207095 |
| distribution and identification of airborne fungi in railway stations in tokyo, japan. | the current study was performed to (1) understand the distribution of airborne fungi culturable on dichloran-glycerol agar (dg18) media over a one-year monitoring period, (2) identify the types of airborne fungi collected, and (3) compare and contrast under- and above-ground spaces, in two railway stations in tokyo, japan. | 2010 | 20299760 |
| other fungi causing onychomycosis. | nondermatophyte onychomycosis account for 2% to 12% of all nail fungal infections and can be caused by a wide range of fungi, mainly scopulariopsis brevicaulis, aspergillus versicolor, a. flavus, a. niger, a. fumigatus, fusarium solani, f. oxysporum and scytalidium spp. among the predisposing factors are footwear, hyperhidrosis, local trauma, peripheral circulatory disease, and immunosuppression. these nondermatophyte fungi lack the keratinolytic capacity of dermatophytes, but they still can inf ... | 2010 | 20347658 |
| [organic dust at workplaces: measurement of pyrogenic activity]. | organic dust is composed of numerous components. exposed people may have health problems. respiratory tract complaints may occur at workplaces like those in agriculture or in the waste industry. therefore methods that determine the composition and activity of dust components are important. they help in the performance of risk estimations and could accompany intervention studies. the aim of our study was to establish a whole blood assay using cryo-preserved blood for characterisation of the pyrog ... | 2010 | 20533171 |
| biological active metabolite cyclo (l-trp-l-phe) produced by south china sea sponge holoxea sp. associated fungus aspergillus versicolor strain ts08. | sponge-associated fungi represent the single most prolific source of novel natural products from marine fungi. cyclo (l-trp-l-phe) exhibits biological functions such as plant growth regulation, moderate cytotoxicity and thus has the application potential in pharmaceutical and agricultural biotechnologies. in this study, a fungal strain ts08 was isolated from sponge holoxea sp. in the south china sea and identified as a. versicolor according to its 18s rrna gene and morphological, physiological, ... | 2011 | 20809226 |
| characterization of phenolic content, in vitro biological activity, and pesticide loads of extracts from white grape skins from organic and conventional cultivars. | grape skin extracts of riesling vitis vinifera l. grapes from conventionally or organically managed cultivars were compared on the basis of their phenolic content, antioxidant capacity, antimicrobial and antimutagenic properties and pesticide loads. promising results on their biological properties suggest that those extracts would be valuable as food preservatives. the antioxidant capacity of conventional extracts was significantly higher, according to the higher content in catechin, epicatechin ... | 2010 | 20870004 |
| sterigmatocystins from the deep-sea-derived fungus aspergillus versicolor. | three new sterigmatocystin derivatives, oxisterigmatocystin a (1), oxisterigmatocystin b (2) and oxisterigmatocystin c (3), together with one known compound, 5-methoxysterigmatocystin (4), were isolated from the deep-sea-derived fungus aspergillus versicolor. the structures of the new compounds were elucidated by spectroscopic methods. the cytotoxicities of compounds 1-4 were evaluated against the a-549 and hl-60 cell lines. compound 4 exhibited moderate cytotoxicities against the a-549 and hl-6 ... | 2010 | 21119680 |
| apoptosis-inducing effect of diketopiperazine disulfides produced by aspergillus sp. kmd 901 isolated from marine sediment on hct116 colon cancer cell lines. | research is to identify the bioactive secondary metabolites produced by aspergillus sp. kmd 901 isolated from marine sediment and to assess their apoptosis-inducing effects. | 2010 | 21122037 |
| use of epidemiological cutoff values to examine 9-year trends in susceptibility of aspergillus species to the triazoles. | in the absence of clinical breakpoints, epidemiological cutoff values (ecvs) have been established to distinguish wild-type (wt) isolates of aspergillus spp. from those that may harbor resistance mutations. recently, the clsi has developed ecvs for triazoles (itraconazole, posaconazole, and voriconazole) and common aspergillus species. we applied the triazole ecvs to 1,789 aspergillus isolates collected from 63 centers worldwide from 2001 to 2009 to determine the frequency of non-wt strains of e ... | 2010 | 21123534 |
| adsorption profile of lead on aspergillus versicolor: a mechanistic probing. | the adsorption of lead on aspergillus versicolor biomass (avb) has been investigated in aqueous solution with special reference to binding mechanism in order to explore the possibilities of the biomass to address environmental pollution. avb, being the most potent of all the fungal biomasses tested, has been successfully employed for reducing the lead content of the effluents of battery industries to permissible limit (1.0 mg l(-1)) before discharging into waterbodies. the results establish that ... | 2010 | 21159429 |
| collection efficiencies of an electrostatic sampler with superhydrophobic surface for fungal bioaerosols. | we recently developed an electrostatic precipitator with superhydrophobic surface (epss), which collects particles into a 10- to 40-μl water droplet allowing achievement of very high concentration rates (defined as the ratio of particle concentration in the collection liquid vs. the airborne particle concentration per time unit) when sampling airborne bacteria. here, we analyzed the performance of this sampler when collecting three commonly found fungal spores--cladosporium cladosporioides, peni ... | 2011 | 21204982 |
| new quinazolinone alkaloids within rare amino acid residue from coral-associated fungus, aspergillus versicolor lcj-5-4. | cottoquinazoline d (3), a new alkaloid with a 1-aminocyclopropane-1-carboxylic acid residue rarely discovered in nature, was isolated and identified together with two new quinazolinone alkaloids, cottoquinazolines b (1) and c (2), from coral-associated fungus aspergillus versicolor lcj-5-4. their structures including absolute configurations were elucidated based on spectroscopic methods, x-ray single crystal diffraction analysis, and chemical methods. a possible biogenetic pathway for them was p ... | 2011 | 21271733 |
| the mycobiota of three dry-cured meat products from slovenia. | the surface mycobiota of three types of slovenian dry-cured meat products were isolated from a total of 75 items of product that were sampled periodically during the drying/ripening stage of processing. the predominant filamentous fungal genus isolated was penicillium. eurotium spp., aspergillus versicolor and cladosporium spp. were isolated from only two of the products. eight penicillium species were identified. penicillium nordicum was recovered frequently. penicillium nalgiovense was recover ... | 2010 | 21356440 |
| inflammatory cytokine gene expression in thp-1 cells exposed to stachybotrys chartarum and aspergillus versicolor. | very little is known about the mechanisms that occur in human cells upon exposure to fungi as well as their mycotoxins. a better understanding of toxin-regulated gene expression would be helpful to identify safe levels of exposure and could eventually be the basis for establishing guidelines for remediation scenarios following a water intrusion event. in this research, cytokine mrna expression patterns were investigated in the human monocytic thp-1 cell line exposed to fungal extracts of various ... | 2011 | 21384497 |
| fungal dna, allergens, mycotoxins and associations with asthmatic symptoms among pupils in schools from johor bahru, malaysia. | while there is a large variation of prevalence of asthma symptoms worldwide, what we do know is that it is on the rise in developing countries. however, there are few studies on allergens, moulds and mycotoxin exposure in schools in tropical countries. the aims were to measure selected fungal dna, furry pet allergens and mycotoxins in dust samples from schools in malaysia and to study associations with pupils' respiratory health effects. eight secondary schools and 32 classrooms in johor bahru, ... | 2011 | 21457336 |
| studies on the biosynthesis of the notoamides: synthesis of an isotopomer of 6-hydroxydeoxybrevianamide e and biosynthetic incorporation into notoamide j. | 6-hydroxydeoxybrevianamide e is proposed as a biosynthetic precursor to several advanced metabolites isolated from both marine-derived aspergillus sp. and a terrestrial-derived aspergillus versicolor. to verify the role of this reverse-prenylated indole alkaloid as an intermediate along the biosynthetic pathway, [13c]2-[15n]-6-hydroxydeoxybrevianamide e was synthesized and fed to aspergillus versicolor. analysis of the metabolites showed complete incorporation of the intermediate into the natura ... | 2011 | 21504234 |
| associations between fungal species and water damaged building materials. | fungal growth in damp or water damaged buildings worldwide is an increasing problem, which has adverse effects on both the occupants and the buildings. air sampling alone in moldy buildings does not reveal the full diversity of fungal species growing on building materials. one aim of this study was to estimate the qualitative and quantitative diversity of fungi growing on damp or water damaged building materials. another was to determine if associations exist between the most commonly found fung ... | 2011 | 21531835 |
| [influence of different types of ionizing radiation on fatty acid profiles of microscopic fungi, showing radioadaptive properties]. | the fatty acid profiles of strains of dark-pigmented (melanin-containing) species cladosporium cladosporioides and hormoconis resinae, and light-pigmented aspergillus versicolor and paecilomyces lilacinus, showing radioadaptive properties in comparison with control strains of the same species, which did not have such properties and the influence on them of two (121sn; 137cs) types of ionizing radiation have been studied. it was established that the most important fatty acids were hexadecanoic ac ... | 2011 | 21598656 |
| cytotoxicity of aspergillus fungi isolated from hospital environment. | the majority of mycotoxins produced by aspergillus fungi are immunosuppressive agents, and their cytotoxicity may impair defense mechanisms in humans. the objective of the study was evaluation of the cytotoxicity of fungi isolated from an environment where inpatients with impaired immunity were present. the materials comprised 57 fungal strains: aspergillus fumigatus, aspergillus niger: aspergillus ochraceus, aspergillus flavus, aspergillus versicolor and aspergillus ustus isolated from hospital ... | 2011 | 21630575 |
| characterization of the 41kda allergen asp v 13, a subtilisin-like serine protease from aspergillus versicolor. | aspergillus versicolor is common on moldy building materials. asp v 13, the principal allergen is produced by strains collected from across canada. in this paper, we report a 1833bp asp v 13 open reading frame predicted to encode a protein of 403 amino acids in length with three introns. a blast search of asp v 13, a phylogenic tree calculation and alignment with its homologous proteins from other species indicated that asp v 13 is a secretory, subtilisin-like serine protease widely distributed ... | 2011 | 21632114 |
| quantification of the aspergillus versicolor allergen in house dust. | aspergillus versicolor, a fungus commonly found on damp building materials, produces the allergen, asp v 13. here we report a sensitive asp v 13 capture elisa for a. versicolor spores and spore- and mycelial fragments in house dust samples. the method is based on a double polyclonal capture elsia. the detection limits for asp v 13 antigen and a. versicolor spores without dust were 2.44pg and 12ng (ca. 110 spores). detection limits for asp v 13 and a. versicolor spores in sieved house dust sample ... | 2011 | 21763696 |
| biosynthetic studies of the notoamides: isotopic synthesis of stephacidin a and incorporation into notoamide b and sclerotiamide. | the advanced natural product stephacidin a is proposed as a biosynthetic precursor to notoamide b in various aspergillus species. doubly (13)c-labeled racemic stephacidin a was synthesized and fed to cultures of the terrestrial-derived fungus, aspergillus versicolor nrrl 35600, and the marine-derived fungus, aspergillus sp. mf297-2. analysis of the metabolites revealed enantiospecific incorporation of intact (-)-stephacidin a into (+)-notoamide b in aspergillus versicolor and (+)-stephacidin a i ... | 2011 | 21714564 |
| Composition and antimicrobial activity of Seseli globiferum essential oil. | The essential oil from aerial parts of Seseli globiferum Vis. obtained by hydrodistillation with Clevenger-type apparatus was analyzed by GC-MS. Twenty-eight compounds were identified, representing 99.4% of the total oil. The main components of the oil were sabinene (38.0%), alpha-pinene (21.2%) and beta-phellandrene (13.5%). The microbial growth inhibitory properties of the isolated essential oil were determined using the broth microdilution method against seven bacterial species: Salmonella ty ... | 2011 | 21922927 |
| notoamide e: biosynthetic incorporation into notoamides c and d in cultures of aspergillus versicolor nrrl 35600. | notoamide e, a short-lived secondary metabolite, has been proposed as a biosynthetic intermediate to several advanced metabolites isolated from aspergillus versicolor. in order to verify the role of this indole alkaloid along the biosynthetic pathway, synthetic doubly (13)c-labeled notoamide e was fed to aspergillus versicolor. analysis of the metabolites showed significant incorporation of notoamide e into the natural products notoamides c and d. | 2011 | 22140279 |
| [fungal nail infections - an update : part 2 - from the causative agent to diagnosis - conventional and molecular procedures.] | trichophyton (t.) rubrum is the most frequently isolated dermatophyte in onychomycosis, both in germany and worldwide. t. interdigitale (formerly t. mentagrophytes var. interdigitale) follows in second place. a further however rarely isolated dermatophyte in onychomycosis is epidermophyton floccosum. candida parapsilosis, candida guilliermondii, and candida albicans, followed by trichosporon spp. are the most important yeasts which are found in onychomycosis. the molds most often responsible inc ... | 2011 | 22037818 |
| Aspergillus versicolor, a New Causative Agent of Canine Disseminated Aspergillosis. | Disseminated aspergillosis in dogs has been associated with Aspergillus terreus or A. deflectus infection. We report a case of disseminated A. versicolor infection presenting as diskospondylitis, osteomyelitis, and pyelonephritis. The diagnosis was made based on clinical, radiographic, and pathological findings. The etiologic agent was identified by fungal culture and internal transcribed spacer (ITS) ribosomal DNA (rDNA) sequencing. This is the first description of canine aspergillosis caused b ... | 2012 | 22031699 |
| Total viable molds and fungal DNA in classrooms and association with respiratory health and pulmonary function of European schoolchildren. | To cite this article: Simoni M, Cai G-H, Norback D, Annesi-Maesano I, Lavaud F, Sigsgaard T, Wieslander G, Nystad W, Canciani M, Viegi G, Sestini P. Total viable molds and fungal DNA in classrooms and association with respiratory health and pulmonary function of European schoolchildren. Pediatr Allergy Immunol 2011: 22: 843-852. ABSTRACT: Indoor molds are associated with adverse respiratory effects in children. Although schools are important exposure sources of molds, objective measurements were ... | 2011 | 22122789 |
| 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 |
| molecular and microscopic analysis of the gut contents of abundant rove beetle species (coleoptera, staphylinidae) in the boreal balsam fir forest of quebec, canada. | experimental research on beetle responses to removal of logging residues following clearcut harvesting in the boreal balsam fir forest of quebec revealed several abundant rove beetle (staphylinidae) species potentially important for long-term monitoring. to understand the trophic affiliations of these species in forest ecosystems, it was necessary to analyze their gut contents. we used microscopic and molecular (dna) methods to identify the gut contents of the following rove beetles: atheta caps ... | 2013 | 24294095 |
| 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 |
| 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 |
| 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 |
| 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 |
| allergic sensitization in canadian chronic rhinosinusitis patients. | chronic rhinosinusitis (crs) is a societal burden and cause of morbidity in canada; however, the prevalence of allergic sensitization in canadian crs patients has remained poorly characterized. | 2014 | 24666655 |
| biochemical and immunological analysis of mould skin prick test solution: current status of standardization. | sensitization prevalence to moulds reached from less than 10% in the general population to more than 25% in atopic and/or asthmatic subjects. to diagnose ige-mediated mould sensitization, skin prick test (spt) and specific ige (sige) measurement are recommended. however, concordance of spt and sige results is often less than 50% and standardization of the extracts is required to achieve reliable test results. | 2013 | 24152161 |
| in vitro antifungal activity of silver nanoparticles against ocular pathogenic filamentous fungi. | fungal keratitis is emerging as a major cause of vision loss in a developing country such as china because of higher incidence and the unavailability of effective antifungals. it is urgent to explore broad-spectrum antifungals to effectively suppress ocular fungal pathogens, and to develop new antifungal eye drops to combat this vision-threatening infection. the aim of this study is to investigate the antifungal activity of silver nanoparticles (nano-ag) in comparison with that of natamycin agai ... | 2013 | 23410063 |
| fungal food choices of dermatophagoides farinae affect indoor fungi selection and dispersal. | house dust mite (hdm) feces and molds are the main allergens involved in allergic asthma. differences exist between the housing fungal biome of allergic patients and standard or unhealthy housing. house dust mite (hdm) feed off spores and transport them on their bodies, but do they have fungal food preferences? we observed dermatophagoïdes farinae in vitro with 16 mold menus and repeated the experiment 10 times. this observation led us to define alternaria alternata, cladosporium sphaerospermum, ... | 2013 | 22774849 |
| aspergillus flavus contamination in two portuguese wastewater treatment plants. | filamentous fungi from genus aspergillus were previously detected in wastewater treatment plants (wwtp) as being aspergillus flavus (a. flavus), an important toxigenic fungus producing aflatoxins. this study aimed to determine occupational exposure adverse effects due to fungal contamination produced by a. flavus complex in two portuguese wwtp using conventional and molecular methodologies. air samples from two wwtp were collected at 1 m height through impaction method. surface samples were coll ... | 2014 | 25072712 |
| 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 |
| 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 |
| 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 |
| 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 |
| antimicrobial and antioxidant activities of alcoholic extracts of rumex dentatus l. | in-vitro antimicrobial and antioxidant activities of various concentrations ranging from 150 to 500 μg/ml of alcoholic (methanol and ethanol) extracts of rumex dentatus were analyzed on different clinical bacterial strains (shigella flexneri, klebsiella pneumoniae, escherichia coli, pseudomonas aeruginosa, salmonella typhimurium, staphylococcus aureus) and fungal strains (aspergillus versicolor, aspergillus flavus, acremonium spp., penicillium dimorphosporum, candida albicans, candida kruesie, c ... | 2013 | 23415966 |
| pcr detection of aflatoxin producing fungi and its limitations. | unlike bacterial toxins that are primarily peptides and are therefore encoded by a single gene, fungal toxins such as the aflatoxins are multi-ring structures and therefore require a sequence of structural genes for their biological synthesis. there is therefore no specific pcr for any one of the four biologically produced aflatoxins. unfortunately, the structural genes presently in use for pcr detection of aflatoxin producing fungi are also involved in the synthesis of other fungal toxins such ... | 2012 | 22445201 |
| 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 |
| concentration of bioaerosols in composting plants using different quantification methods. | bioaerosols (organic dusts) containing viable and non-viable microorganisms and their metabolic products can lead to adverse health effects in exposed workers. standard quantification methods of airborne microorganisms are mainly based on cultivation, which often underestimates the microbial burden. the aim of the study was to determine the microbial load in german composting plants with different, mainly cultivation-independent, methods. second purpose was to evaluate which working areas are as ... | 2014 | 24759376 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| gamma irradiation of cultural artifacts for disinfection using monte carlo simulations. | in this study, it has been investigated the disinfection of korean cultural artifacts by gamma irradiation, simulating the absorbed dose distribution on the object with the monte carlo methodology. fungal contamination was identified on two traditional korean agricultural tools, hongdukkae and holtae, which had been stored in a museum. nine primary species were identified from these items: bjerkandera adusta, dothideomycetes sp., penicillium sp., cladosporium tenuissimum, aspergillus versicolor, ... | 2012 | 22940410 |