| a monoclonal antibody specific for conidia and mycelium wall layer of penicillium and aspergillus. | a monoclonal antibody was obtained from balb/c mice immunized with penicillium frequentans mycelium. the specificity of the antibody was evaluated by enzyme-linked immunosorbent and indirect immunofluorescence assays against the same mycelium. this igm antibody cross-reacted with various strains of the penicillium and aspergillus genera. by indirect immunofluorescence assays, the antibody was able to stain about 10% of penicillium and aspergillus conidia, but major part of conidia did not absorb ... | 1992 | 1584066 |
| imi descriptions of fungi and bacteria no. 1105. penicillium glabrum. | | 1992 | 1640981 |
| fungi of virgin and cultivated soil of salhiah desert, egypt. | 27 species and 13 genera of fungi were identified from virgin and cultivated soil of salhiah. the most abundant species of phosphate solubilizing fungi were aspergillus nidulans, a. niger, a flavus, penicillium lilacinum, p. frequentans and fusarium moniliforme. on cellulose agar the most prevalent species were chaetomium bostrychodes, c. olivaceum, humicola fuscoatra, aspergillus flavus, a. nidulans, a. niger, a. ochraceus, fusarium solani and f. oxysporum. on xylan agar aspergillus fumigatus, ... | 1990 | 2077791 |
| immunological differentiation of penicillium species. | antisera were obtained from a rabbit immunized with penicillium verrucosum var. verrucosum. these antisera were characterized by immunofluorescence and by indirect enzyme-linked immunosorbent assay for their reactivity with 44 strains of moulds. antigenically, p. verrucosum var. verrucosum (subgenus penicillium) appears to be similar to strains belonging to subgenus furcatum, but strongly different from penicillium frequentans (subgenus aspergilloides). specific absorption of antibodies to antig ... | 1989 | 2692798 |
| extracellular galactosaminogalactan from penicillium frequentans. | penicillium frequentans secreted an exopolysaccharide composed mainly of n-acetyl-galactosamine (48.4%) and galactose, mannose and glucose in the ratio 4:1:1, that were alpha - (1----4) and alpha - (1----3) linked predominantly. greater polysaccharide production was achieved in old cultures grown statically with glucose as carbon source. | 1988 | 3077985 |
| selective partitioning of conidia of some penicillium and aspergillus species in aqueous two-phase systems. | conidia of aspergillus fumigatus, aspergillus flavus, aspergillus niger, penicillium brevi-compactum, penicillium frequentans, penicillium spinulosum, and penicillium verrucosum var. cyclopium were subjected to partition at varying ph values in an aqueous two-phase system containing charged polyethylene glycol. in the system, the partition behavior of the conidia of the penicillium species varied when the ph was raised, while the conidia of the aspergillus species seemed unaffected. p. brevi-com ... | 1986 | 3096203 |
| the effect of palitantin, a metabolite of penicillium frequentans on leishmania brasiliensis. | | 1970 | 4315640 |
| the role of penicillium frequentans in suberosis (respiratory disease in workers in the cork industry). | | 1974 | 4842936 |
| toxic effects in mice of corn cultures of penicillium cyclopium and penicillium frequentans. | | 1971 | 5143594 |
| studies in the biochemistry of micro-organisms. 115. metabolites of penicillium frequentans westling: isolation of sulochrin, asterric acid, (+)-bisdechlorogeodin and two new substituted anthraquinones, questin and questinol. | | 1964 | 5838081 |
| siderochromes from pseudomonas fluorescens. ii. structural homology as revealed by nmr spectroscopy. | ferribactin and the pyoverdines, siderochromes that are obtained from liquid cultures of pseudomonas fluorescens cells, have been studied and compared by 1h and 13c nmr spectroscopy. the proton spectra of the iron-free compounds show that the pyoverdines share with ferribactin a common feature, formyl hydroxamic acid groups, that previously had only been observed in hadacidin, and antitumor antibiotic produced by penicillium frequentans. the 1h and 13c nmr data confirm that ferribactin is a nona ... | 1982 | 6211451 |
| enzymatic synthesis of (+)- and (-)-bisdechlorogeodin with sulochrin oxidase from penicillium frequentans and oospora sulphurea-ochracea. | sulochrin oxidase is a blue copper-containing glycoenzyme that catalyzes a stereospecific formation of bisdechlorogeodin from sulochrin. the enzyme has been isolated from penicillium frequentans and oospora sulphurea-ochracea which catalyzes the formation of (+)-form and (-)-form of bisdechlorogeodin respectively. the penicillium enzyme has a molecular weight of 157,000 and contains 19.5% of carbohydrates. amino acid and carbohydrate compositions are given. the enzyme has probably a dimeric stru ... | 1982 | 7049104 |
| [survival of microscopic filamentous fungi under various temperature conditions]. | time required for devitalization of mucor fragillis, fusarium moniliforme, penicillium glabrum and aspergillus niger germs at temperatures of 22, 37, 60 degrees c was determined under laboratory conditions. all of the tested strains withstood the temperature 22 degrees c during the period of 42 days in sabouraud agar. at the temperature of 37 degrees c devitalization appeared in the following order: f. moniliforme 14 days, p. glabrum 21 days, m. fragillis 28 days, a. niger 35 days. temperature o ... | 1995 | 7571248 |
| molecular cloning and heterologous expression of the gene encoding dihydrogeodin oxidase, a multicopper blue enzyme from aspergillus terreus. | aspergillus terreus dihydrogeodin oxidase (dhgo) is an enzyme catalyzing the stereospecific phenol oxidative coupling reaction converting dihydrogeodin to (+)- geodin. we previously reported the purification of dhgo from a. terreus and raised polyclonal antibody against dhgo. from the first cdna library constructed in lambda gt11 using mrna from 3-day-old mycelium of a. terreus, four clones were identified using anti-dhgo antibody, but all contained partial cdna inserts around 280 base pairs. th ... | 1995 | 7665560 |
| [elimination of microscopic filamentous fungi with disinfectants]. | the antifungal effectivity of three single-component (persteril, septonex, glutaraldehyd) and of three combined (persteril+septonex, pesteril+glutaraldehyd, glutaraldehyd+septonex) commercially available disinfectants was monitored by the diffuse method on five fen of the microscopic filamentous fungi aspergillus alternata, aspergillus niger, mucor fragillis, fusarium moniliforme, penicillium glabrum. the highest antifungal activity was observed in 2% persteril while 2% persteril + 1% septonex w ... | 1994 | 7863573 |
| [extrinsic allergic alveolitis caused by penicillium frequentans. review and presentation of a case]. | we present a case of extrinsic allergic alveolitis due to penicillium frequentans exposure (suberosis) at a cork factory. diagnosis was based on clinical history, a restrictive spirometric pattern, evidence of reticular-nodular lung infiltrates on the x-ray, intradermal skin tests with dual reaction and precipitins-positive serum samples in the presence of the p. frequentans fungus. although the patient refused to submit to a specific bronchial challenge, two natural challenges occurred when he ... | 1994 | 8000696 |
| unspecific degradation of halogenated phenols by the soil fungus penicillium frequentans bi 7/2. | resting phenol-grown mycelia of the fungus penicillium frequentans strain bi 7/2 were shown to be capable of metabolizing various monohalogenated phenols as well as 3,4-dichlorophenol. 2,4.dichlorophenol could be metabolized in the presence of phenol as cosubstrate. in the first degradation step the halogenated phenols were oxidized to the corresponding halocatechols. halocatechols substituted in para-position (4-halocatechols) were further degraded under formation of 4-carboxymethylenbut-2-en-4 ... | 1994 | 8071803 |
| effect of glyphosate on fungal population, respiration and the decay of some organic matters in egyptian soil. | glyphosate (roundup), when applied to the soil usually did not exert any significant effect on the total count of soil fungi after all periods of the experiment except after 6 and 10 weeks where the count was inhibited by the two doses used (1.84, 9.2 mg active ingredient/kg dry soil). when the herbicide was incorporated into the agar medium the count of total fungi, acremonium strictum and aspergillus fumigatus was significantly increased by the two doses used and of penicillium glabrum by the ... | 1994 | 8087475 |
| [inhibition of growth of microscopic fungi with organic acids]. | fungicidal effects of five selected organic acids (lactic, acetic, formic, oxalic, and propionic) in concentrations 3, 5, 10, 20 and 50 ml/l on nine selected species of moulds were tested. lactic and oxalic acids did not prove the satisfactory fungicidal activity in any of the chosen concentrations. the antifungal effect of the other three acids, manifested by the growth inhibition of the tested moulds is shown in tab. i and it can be expressed by sequence: propionic acid, formic acid, and aceti ... | 1993 | 8122343 |
| cometabolic degradation of o-cresol and 2,6-dimethylphenol by penicillium frequentans bi 7/2. | o-cresol induced glucose-grown resting mycelia of penicillium frequentans bi 7/2 (atcc-number: 96048) immediately oxidized o-cresol and other phenols. after precultivation on glucose and phenol degradation started after a lag-phase of 24 hours. metabolites of o-cresol metabolism were methylhydroquinone, methyl-p-benzoquinone, 2-methyl-5-hydroxyhydroquinone and 2-methyl-5-hydroxy-p-benzoquinone. the initial reaction is probably catalyzed by a nadph dependent hydroxylase which is specific for o-cr ... | 1995 | 8568641 |
| transformations of penicillium islandicum and penicillium frequentans that produce anthraquinone-related compounds. | wild-type strains of penicillium islandicum and penicillium frequentans, which produce anthraquinone and related compounds, were transformed to benomyl and hygromycin b resistance. plasmids psv50 and pbt6, with benomyl-resistant beta-tublin genes, and plasmids pan7-1 and pdh25, with a bacterial hygromycin phosphotransferase gene under the control of aspergillus nidulans sequences, were used respectively. transformation frequencies with these plasmids were 10-20 transformants per micrograms of dn ... | 1995 | 8593690 |
| purification and characterization of sulochrin oxidase from penicillium frequentans. | sulochrin oxidase, an enzyme catalyzing regio- and stereospecific phenol oxidative coupling reaction to form (+)-bisdechlorogeodin from sulochrin, was isolated from penicillium frequentans cmi 96659. by chromatographies on deae-cellulose, hydroxyapatite, phenyl-sepharose, mono p, mono q, and hplc gel filtration columns, sulochrin oxidase was purified to apparent homogeneity. the purified enzyme had a molecular weight of 230 k as estimated by gel filtration and 110 k as estimated by sodium dodecy ... | 1996 | 8820909 |
| 1-methoxypyrene and 1,6-dimethoxypyrene: two novel metabolites in fungal metabolism of polycyclic aromatic hydrocarbons. | the metabolism of pyrene by penicillium glabrum strain tw 9424, a strain isolated from a site contaminated with polycyclic aromatic hydrocarbons (pahs) was investigated in submerged cultures. the metabolites formed were identified as 1-hydroxypyrene, 1,6- and 1, 8-dihydroxypyrene, 1,6- and 1,8-pyrenequinone, and 1-pyrenyl sulfate. in addition, two new metabolites were isolated and identified by uv, 1h nuclear magnetic resonance, and mass spectroscopy as 1-methoxypyrene and 1,6-dimethoxypyrene. e ... | 1997 | 9094229 |
| fungitoxicity of chemical analogs with heartwood toxins. | trans-stilbene and tropolone as chemical analogs with naturally occurring fungitoxic heartwood compounds were studied with respect to their fungitoxic potency. while stilbene showed no fungitoxic activity towards the fungi aureobasidium pullulans var. melanogenum, penicillium glabrum, and trichoderma harzianum in the concentrations tested, the minimal inhibiting concentration of tropolone was 10(-3) m for penicillium glabrum and trichoderma harzianum, and 10(-5) m for aureobasidium pullulans var ... | 1998 | 9625794 |
| influence of temperature, ph and water activity on "in vitro" inhibition of penicillium glabrum (wehmer) westling by yeasts. | four different yeast species (metschnikowia pulcherrima, saccharomycopsis vini, kluyveromyces marxianus, cryptococcus albidus), isolated from surface of grapes, were evaluated for biocontrol potential against penicillium glabrum. in order to investigate the influence of temperature, ph, water activity and yeast cell concentration on penicillium glabrum inhibition, the individual effects and the interaction of these factors were analyzed by means of a central composite design (ccd). all yeast spe ... | 1998 | 9760746 |
| comparative study of intracellular and extracellular pectinases produced by penicillium frequentans. | the filamentous fungus penicillium frequentans synthesized eleven polygalacturonases (pgs) and two pectinesterases (pes) when grown in liquid culture supplemented with pectin. seven pgs and the two pes were secreted in the medium, whereas four pgs were not secreted. among the secreted pgs, the endo-pg (band 10) and exo-pgs (band 5) were the enzymes secreted at the highest levels. all secreted pgs bound to lectin and their secretion and/or enzymic activities were inhibited by tunicamycin (tm), ex ... | 1999 | 10075909 |
| individual and combined effects of vanillin and potassium sorbate on penicillium digitatum, penicillium glabrum, and penicillium italicum growth. | the individual and combined effects of potassium sorbate and vanillin concentrations on the growth of penicillium digitatum, p. glabrum, and p. italicum in potato dextrose agar adjusted to water activity 0.98 and ph 3.5 were evaluated. inhibitory concentrations of potassium sorbate varied from 150 ppm for p. digitatum to 700 ppm for p. glabrum, and for vanillin from 1,100 ppm for p. digitatum and p. italicum and 1,300 ppm for p. glabrum. fractional inhibitory concentration (fic) isobolograms sho ... | 1999 | 10340678 |
| hypersensitivity pneumonitis among workers cultivating tricholoma conglobatum (shimeji). | we report five cases of hypersensitivity pneumonitis among workers cultivating tricholoma conglobatum (shimeji). after having worked for 5 to 20 years, they began to notice symptoms of cough, sputum, and dyspnea. they were diagnosed as having a hypersensitivity pneumonitis based on clinical features, bronchoalveolar lavage and transbronchial lung biopsy. by the double immunodiffusion test, precipitating lines between shimeji spore antigen and sera were observed in all of the patients. by enzyme- ... | 1999 | 10364747 |
| species-specific production of microbial volatile organic compounds (mvoc) by airborne fungi from a compost facility. | thirteen airborne fungal species frequently isolated in composting plants were screened for microbial volatile organic compounds (mvoc), i.e., aspergillus candidus, a. fumigatus, a. versicolor, emericella nidulans, paecilomyces variotii, penicillium brevicompactum, penicillium clavigerum, penicillium crustosum, penicillium cyclopium, penicillium expansum, penicillium glabrum, penicillium verruculosum, and tritirachium oryzae. air samples from pure cultures were sorbed on tenax gr and analyzed by ... | 1999 | 10448558 |
| sequential synthesis and secretion of pectinases by penicillium frequentans. | penicillium frequentans synthesized eleven polygalacturonases and three pectinesterases when grown in the presence of pectin, sodium polypectate or monogalacturonic acid. when glucose was the sole carbohydrate source in the medium two of these polygalacturonases and one pectinesterase were produced. the enzymes produced under any of these conditions degraded pectic substrates to monogalacturonic acid, suggesting that this monosaccharide or its metabolites should induce the pectinolytic complex. ... | 2000 | 11199491 |
| roquefortine c occurrence in blue cheese. | several strains of penicillium are used for the production of mold-ripened cheeses, and some of them are able to produce mycotoxins. the aims of the research were the determination of roquefortine c and pr toxin in domestic and imported blue cheeses, the identification of the penicillia used as starter, and the investigation of their capacity for producing toxins in culture media. roquefortine c was always found in the cheeses at levels ranging from 0.05 to 1.47 mg/kg, whereas the pr toxin was n ... | 2001 | 11271775 |
| purification and partial characterization of exopolygalacturonase i from penicillium frequentans. | a polygalacturonase with a molecular mass of 74 kda, an isoelectric point around ph 4.2 and ph--and temperature optima of 3.9 and 50 degrees c, respectively, was purified from a culture fluid of penicillium frequentans. the enzyme was characterized as an exo-alpha-1,4-polygalacturonase (exo-pg i). km and vmax for sodium polypectate hydrolysis were 0.68 g/l and 596.8 u x mg(-1), respectively. the enzyme, a glycoprotein with a carbohydrate content of 81%, is probably the main pectinase of penicill ... | 2002 | 11911610 |
| harmful substances on the opera stage: possible negative effects on singers' respiratory tracts. | objective, quantitative information is lacking in the medical community about actual working conditions for professional singers onstage, and moreover, about which conditions are safe. physicians, speech-language pathologists, and speech scientists focusing on laryngology should have relevant information about the opera as workplace and the medical sequelae of unhealthy environments. we describe five toxic substances to which singers presenting to our clinics were exposed while working professio ... | 2002 | 12002889 |
| [hypersensitivity pneumonitis in construction plasterers (espartosis): study of 20 patients]. | espartosis is a type of hypersensitivity pneumonitis which frequently affects construction workers handling esparto fibres used as support material inside gypsum plaster. exactly which agents produce this disease remains under discussion. the aims of this study were: a) to assess the possible etiologic role of the fungi colonizing esparto grass fibres and esparto itself in the genesis of this disease, and b) to describe the clinical characteristics of this disease in a large series of patients. | 2003 | 12729527 |
| indications for the tracking of elevated nitrogen levels through the fungal route in a soil food web. | the objective of the present study was to determine the effects of elevated n in dead organic matter on the growth of fungi and to establish the consequences for the development of microbivores. therefore, three fungal species were cultured on scots pine litter differing in n content. the growth of the soil fungal species trichoderma koningii, penicillium glabrum and cladosporium cladosporioides was directly influenced by the n content (ranging from 1.25 to 2.19% n) of the substrate. for all thr ... | 2003 | 12927496 |
| suberosis: clinical study and new etiologic agents in a series of eight patients. | penicillium frequentans is considered to be the causal agent of suberosis, hypersensitivity pneumonitis due to cork dust inhalation. nevertheless, other fungi can colonize cork during its storage period in humid conditions. the aims of the study were to assess the etiologic role of several fungi and cork itself in the genesis of suberosis, and to review the clinical characteristics of patients with this disease. | 2003 | 12970049 |
| spoilage fungi and their mycotoxins in commercially marketed chestnuts. | a nationwide survey was carried out to assess mould spoilage of castanea sativa nuts sold in canadian grocery stores in 1998-99. morphological and cultural characters, along with secondary metabolite profiles derived from thin-layer chromatography, were used to sort and identify fungi cultured from nut tissue. three mycotoxigenic fungi dominated (penicillium crustosum, penicillium glabrum/spinulosum and penicillium discolor) and were isolated at frequencies of 67.1%, 18.6% and 17.7%, respectivel ... | 2003 | 14527787 |
| respiratory diseases in french cork workers. | a cross-sectional study on suberosis was conducted in the champagne-ardenne county, france, to determine the prevalence of respiratory symptoms, the level of pulmonary function, and the presence of precipitins against penicillium frequentans. thirteen of the 33 workers exposed to cork dust had respiratory symptoms excluding hypersensitivity pneumonitis. the respiratory symptoms were not correlated with tobacco habits or duration of exposure. the levels of pulmonary function were not significantl ... | 2003 | 14648360 |
| cork workers' occupational asthma: lack of association with allergic sensitisation to fungi of the work environment. | to evaluate allergic sensitisation to chrysonilia sitophila, penicillium glabrum, and trichoderma longibrachiatum in cork workers with asthma. | 2004 | 14740220 |
| frequentin; an antibiotic produced by some strains of penicillium frequentans westling. | | 1951 | 14826842 |
| reduction of solar uv-b mediates changes in the sphagnum capitulum microenvironment and the peatland microfungal community. | the influence of near-ambient and reduced solar uv-b radiation on a peatland microfungal community was assessed by exposing experimental plots to uv-selective filtration. replicate plots were covered with special plastic films to effect treatments of near-ambient and attenuated solar uv-b. the microfungal community from the top 1 cm of sphagnum capitulum in a tierra del fuego peatland was censused throughout three growing seasons, between 1999 and 2002. sphagnum capitula under near-ambient uv-b ... | 2004 | 15179579 |
| antigen characterization of major cork moulds in suberosis (cork worker's pneumonitis) by immunoblotting. | we characterized by immunoblotting the antigenicity of the most frequent fungi colonizing cork during its industrial processing, penicillium glabrum and chrysonilia sitophila. penicillium glabrum is the main causative agent of suberosis, a hypersensitivity pneumonitis of cork workers. chrysonilia sitophila induces both ige sensitization and occupational asthma in the wood processing industry. | 2004 | 15180761 |
| solid-state fermentation: a continuous process for fungal tannase production. | truly continuous solid-state fermentations with operating times of 2-3 weeks were conducted in a prototype bioreactor for the production of fungal (penicillium glabrum) tannase from a tannin-containing model substrate. substantial quantities of the enzyme were synthesized throughout the operating periods and (imperfect) steady-state conditions seemed to be achieved soon after start-up of the fermentations. this demonstrated for the first time the possibility of conducting solid-state fermentatio ... | 2004 | 15334419 |
| transformation of difluorinated phenols by penicillium frequentans bi 7/2. | the penicillium frequentans strain bi 7/2, using phenol as a sole source of carbon and energy, transformed the fluorinated phenols 2,3-, 2,4-, 2,5- and 3,4-difluorophenol rapidly. after growth on phenol, resting mycelia of the fungus converted the difluorophenols completely at an initial concentration of 0.5 mm within 6 hours. the corresponding difluorinated catechols were found to be intermediates of all difluorophenols investigated. a relatively unspecific phenol hydroxylase catalyzed this hyd ... | 1997 | 15765583 |
| changes of chromium behavior in soil during phenanthrene removal by penicillium frequentans. | soil contamination due to polycyclic aromatic hydrocarbons is often associated with the presence of high levels of potentially toxic metals. bioremediation is an important option for the clean up of this type of contamination. changes of chromium fluxes and concentrations during the phenanthrene removal by penicillium frequentans in soil were investigated. during the bioremediation process, changes in chromium behavior were monitored by diffusive gradients in thin-films (dgt) and by filtration i ... | 2005 | 15865407 |
| failure of ticks to transmit scopulariopsis brevicaulis (deuteromycota), a common filamentous fungal commensal of ticks. | the capacity of ticks to transmit a fungus was examined by analyzing tick saliva, host tissue from feeding sites, and host blood for presence of scopulariopsis brevicaulis (sacc.) bainier, an internal mycosymbiont of the american dog tick, dermacentor variabilis (say), and lone star tick, amnblyomma americanum (l.). although >85% of ticks were infected with s. brevicaulis, conidia presence was low (0-5% of samples) in microscopic observations and mycological culturing of saliva expressed from la ... | 2005 | 15962791 |
| inhibitory activity of phosphates on molds isolated from foods and food processing plants. | six commercial phosphates were evaluated for inhibition of the growth of 17 molds isolated from food sources. the assays were performed at neutral and natural (without ph adjustment) ph values, and the molds were streaked on plate count agar with added phosphates. phosphate concentrations of 0.1, 0.3, 0.5, 1.0, and 1.5% (wt/vol) were used, and the mic was determined. the resistance of molds to phosphates depended on the species. at a neutral ph, aspergillus ochraceus and fusarium proliferatum we ... | 2005 | 16300093 |
| identification and preliminary sar studies of (+)-geodin as a glucose uptake stimulator for rat adipocytes. | (+)-geodin (1) was isolated from penicillium glabrum aj117540 with activity that stimulates glucose uptake by rat adipocytes. unlike insulin it is active in the presence of wortmannin. dihydrogeodin (2) and sulochrin (3) which are the precursors of (+)-geodin biosynthesis were also isolated from the same fungus. preliminary sar studies of 1 showed some analogues had enhanced activity. especially, the activities of racemic geodin and dibromo analogue (7a) were comparable to that of the natural pr ... | 2005 | 16320762 |
| separation of fungal propagules by partition in aqueous polymer two-phase systems. | conidia of penicillium chrysogenum and penicillium frequentans and sporangiospores of rhizopus rhizopodiformis, rhizomucor pusillus, and mucor racemosus were subjected to partition in aqueous polymer two-phase systems. the partition behavior differed drastically between the conidia of the two penicillium species and the sporangiospores of the three species of phycomycetes. this difference in partition behavior can be used for purification of fungi belonging to different taxonomical groups. p. fr ... | 1984 | 16346569 |
| bioavailable cadmium during the bioremediation of phenanthrene-contaminated soils using the diffusive gradients in thin-film technique. | to study the impact of fungal bioremediation of phenanthrene on trace cadmium solid-solution fluxes and solution phase concentration. | 2006 | 16478520 |
| selection and identification of fungi isolated from sugarcane bagasse and their application for phenanthrene removal from soil. | this work investigated the identification and selection of fungi isolated from sugarcane bagasse and their application for phenanthrene (phe) removal from soil. fungi were identified by pcr amplification of its regions as aspergillus terrus, aspergillus fumigatus and aspergillus niger, penicillium glabrum and cladosporium cladosporioides. a primary selection of fungi was accomplished in plate, considering phe tolerance of every strain in two different media: potato dextrose agar (pda) and minera ... | 2006 | 16484077 |
| effect of stabilizers on the shelf-life of penicillium frequentans conidia and their efficacy as a biological agent against peach brown rot. | stabilizers were added to conidia of penicillium frequentans at two different points of the production-formulation process to improve shelf-life of conidia stored at different temperatures. effects were also tested on conidial germination and production. germination of conidia without additives was 90.2%; sodium chloride, potassium chloride, triton tx100, dimethyl sulphoxide, peroxidase, 0.375% and 0.075% ascorbic acid, 7.5% and 3.75% sucrose, and 7.5% and 3.75% d-sorbitol reduced significantly ... | 2007 | 16860898 |
| sclerotiorin, from penicillium frequentans, a potent inhibitor of aldose reductase. | aldose reductase, the first key enzyme in the polyol pathway, is involved in complications of diabetes. sclerotiorin, isolated and purified from the fermented broth of penicillium frequentans, inhibited aldose reductase with an ic(50 )0.4 microm. the inhibitor also showed antibacterial activity against bacillus spp. | 2006 | 16900332 |
| [moulds and yeasts in bottled water and soft drinks]. | some damaged cartons of soft drinks and carbonated water were analyzed to detect the microorganisms that caused the damage. the contaminants of sugar used in the production of one of the drinks were also studied. the methods of déak & beuchat and pitt & hocking were used for the identification of yeasts and moulds, respectively. the agents of the spoilage of soft drinks were debaryomyces hansenii, debaryomyces polymorphus, galactomyces geotrichum, metschnikowia pulcherrima, mucor circinelloides, ... | 2006 | 17037258 |
| phenanthrene removal by penicillium frequentans grown on a solid-state culture: effect of oxygen concentration. | phenanthrene removal by penicillium frequentans was compared under aerobic and microaerophilic conditions in a solid culture amended with low quantities of an agricultural residue. an inoculum of p. frequentans grown on sugarcane bagasse pith was mixed with soil spiked with 200 mg l(-1) of phenanthrene, to obtain a final bagasse/soil ratio of 1:16. the c/n ratio was adjusted to 60 and the moisture content to 40%. the oxygen concentrations were adjusted to 20%, 10%, 5%, 2% and close to 0%, in the ... | 2006 | 17144256 |
| fungal strains isolated from cork stoppers and the formation of 2,4,6-trichloroanisole involved in the cork taint of wine. | cork taint is mainly due to 2,4,6-trichloroanisole (tca) produced through the activity of undesirable fungal strains. we observed that cfu mould number in tca-containing stoppers was not quantitatively different to that of the stoppers not containing tca (ca. 10(5)cfu/g). in contrast more fungi diversity was observed in tca-containing stoppers. penicillium spp (penicillium chrysogenum, penicillium glabrum), aspergillus spp (aspergillus niger and aspergillus oryzae), chrysonilia sitophila, mucor ... | 2007 | 17188205 |
| antifungal efficacy of hydrogen peroxide in dental unit waterline disinfection. | the concentration and composition of fungal flora in dental unit waterlines (duwl) were evaluated. for this purpose, water samples from unit reservoirs and high-speed handpieces, and biofilm samples from the waterline walls from units were collected. subsequently, analogous samples from duwl were taken before and after disinfection using agent containing hydrogen peroxide. in the examined samples, the yeast-like fungi candida albicans and candida curvata were found. the following species of moul ... | 2006 | 17196007 |
| penicillium glabrum cork-colonising isolates - preliminary analysis of their genomic similarity. | the cork stopper manufacturing process includes an operation, known as stabilisation, by which humid cork slabs are extensively colonised by fungi. the effects of fungal growth on cork are not completely understood although they are considered to be involved in the so-called "cork taint" of wine. it is essential to (a) identify environmental constraints which define the appearance of the colonising fungal species and (b) trace their origin to the forest and/or the manufacturing space. the presen ... | 2006 | 17196021 |
| sclerotiorin, a novel inhibitor of lipoxygenase from penicillium frequentans. | foods rich with unsaturated fatty acids are prone to enzymatic and nonenzymatic lipid peroxidation; lipoxygenase, a metalloenzyme and a free radical former, oxidizes polyunsaturated fatty acids and is one of the key enzymes in lipid oxidation. here, we report sclerotiorin, purified from the fermented broth of penicillium frequentans, as a potent reversible, uncompetitive inhibitor against soybean lipoxygenase-1 (lox-1) with a half-maximal value (ic50) of 4.2 microm. the inhibitor also showed an ... | 2007 | 17385879 |
| penicillium frequentans population dynamics on peach fruits after its applications against brown rot in orchards. | the study provides useful information on the temporal population dynamics of the biological control agent, penicillium frequentans, after its applications against brown rot in orchards. | 2008 | 17953688 |
| influence of additives on adhesion of penicillium frequentans conidia to peach fruit surfaces and relationship to the biocontrol of brown rot caused by monilinia laxa. | additives, such as sucrose, d-sorbitol, glycerol, sodium alginate, carboxymethyl cellulose, silica gel, gelatine, non-fat skimmed milk and a commercial adhesive were added to conidia of penicillium frequentans at two different points in the production process of the formulation of this fungus to improve conidial adhesion. conidial adhesion was estimated as the number of p. frequentans conidia (no. conidia cm(-2)) and colony-forming units of p. frequentans per unit area (cfu cm(-2)) that adhered ... | 2008 | 18541321 |
| isolation and analysis of differentially expressed genes in penicillium glabrum subjected to thermal stress. | penicillium glabrum is a filamentous fungus frequently involved in food contamination. numerous environmental factors (temperature, humidity, atmospheric composition, etc.) or food characteristics (water activity, ph, preservatives, etc.) could represent potential sources of stress for micro-organisms. these factors can directly affect the physiology of these spoilage micro-organisms: growth, conidiation, synthesis of secondary metabolites, etc. this study investigated the transcriptional respon ... | 2008 | 19047743 |
| eupenicillium saturniforme, a new species discovered from northeast china. | a new eupenicillium species, e. saturniforme was isolated from soil in jilin province, northeast china. morphologically, it resembled e. shearii and e. tropicum, but is distinguished from them by slowly maturing cleistothecia, lenticular ascospores with nearly smooth-walled convex surfaces, strictly velutinous colony texture with abundant conidiogenesis, robust biverticillate penicilli, apically vesiculate metulae and rough-walled stipes and conidia. the partial beta-tubulin gene sequence of the ... | 2009 | 19156535 |
| molecular fingerprinting by pcr-denaturing gradient gel electrophoresis reveals differences in the levels of microbial diversity for musty-earthy tainted corks. | the microbial community structure of cork with marked musty-earthy aromas was analyzed using denaturing gradient gel electrophoresis of amplified ribosomal dna. cork stoppers and discs were used for dna extraction and were analyzed by using selective primers for bacteria and fungi. stoppers clearly differed from discs harboring a different fungal community. moreover, musty-earthy samples of both types were shown to have a specific microbiota. the fungi penicillium glabrum and neurospora spp. wer ... | 2009 | 19201983 |
| physiological traits of penicillium glabrum strain lcp 08.5568, a filamentous fungus isolated from bottled aromatized mineral water. | penicillium glabrum is a ubiquitous fungus distributed world wide. this fungus is a frequent contaminant in the food manufacturing industry. environmental factors such as temperature, water activity and ph have a great influence on fungal development. in this study, a strain of p. glabrum referenced to as lcp 08.5568, has been isolated from a bottle of aromatized mineral water. the effects of temperature, a(w) and ph on radial growth rate were assessed on czapeck yeast agar (cya) medium. models ... | 2009 | 19233496 |
| fungal sensitization in nasal polyposis. | there are indications that polyposis is somehow related to allergic phenomena. fungal sensitization in substantial proportions of patients has been cited as a trigger of inflammatory mechanisms involving either an immunoglobulin (ig) e-mediated reaction to fungal colonization or fungal invasion of tissues. | 2009 | 19274923 |
| [hypersensitivity pneumonitis caused by mucor species in a cork worker]. | suberosis is a type of hypersensitivity pneumonitis caused by exposure to cork proteins and molds such as aspergillus fumigatus and penicillium frequentans. we present the case of a man with suberosis caused by mucor species, a mold that has been rarely reported to cause hypersensitivity pneumonitis. furthermore, the patient had symptoms and lung function tests indicating bronchial obstruction-an atypical presentation of hypersensitivity pneumonitis. no imaging abnormalities were observed. a dia ... | 2009 | 19376624 |
| biodegradation of international jet a-1 aviation fuel by microorganisms isolated from aircraft tank and joint hydrant storage systems. | microorganisms contaminating international jet a-1 aircraft fuel and fuel preserved in joint hydrant storage tank (jhst) were isolated, characterized and identified. the isolates were bacillus subtillis, bacillus megaterium, flavobacterium oderatum, sarcina flava, micrococcus varians, pseudomonas aeruginosa, bacillus licheniformis, bacillus cereus and bacillus brevis. others included candida tropicalis, candida albicans, saccharomyces estuari, saccharomyces cerevisiae, schizosaccharomyces pombe, ... | 2009 | 19452113 |
| broad-spectrum antimicrobial epiphytic and endophytic fungi from marine organisms: isolation, bioassay and taxonomy. | in the search for new marine derived antibiotics, 43 epi- and endophytic fungal strains were isolated from the surface or the inner tissue of different marine plants and invertebrates. through preliminary and secondary screening, 10 of them were found to be able to produce broad-spectrum antimicrobial metabolites. by morphological and molecular biological methods, three active strains were characterized to be penicillium glabrum, fusarium oxysporum, and alternaria alternata. | 2009 | 19597575 |
| off-odor compounds produced in cork by isolated bacteria and fungi: a gas chromatography-mass spectrometry and gas chromatography-olfactometry study. | the risk of development of specific olfactory profiles in cork was evaluated after inoculation of cork granules and agglomerated and natural cork stoppers with isolated bacteria and fungi. the highest incidence of off-odor development was found in assays when fungi were inoculated. cork granules with musty-earthy, musty-earthy-tca, and vegetative deviations were inspected by gas chromatography-olfactometry (gc-o) and gas chromatography-mass spectrometry (gc-ms). sixteen odor zones were clearly r ... | 2009 | 19639991 |
| antifungal activity of eugenol against penicillium, aspergillus, and fusarium species. | the antifungal activity of eugenol in a model system against aspergilli (aspergillus niger, aspergillus terreus, and emericella nidulans), penicilli (penicillium expansum, penicillium glabrum, and penicillium italicum), and fusaria (fusarium oxysporum and fusarium avenaceum) was investigated. minimum detection time (time to attain a colony diameter of 1 cm) and the kinetic parameters were evaluated. the effectiveness of the active compound seemed to be strain or genus dependent; 100 mg/liter rep ... | 2010 | 20537272 |
| biotransformation of dehydroepiandrosterone (dhea) with penicillium griseopurpureum smith and penicillium glabrum (wehmer) westling. | microbial transformation of dehydroepiandrosterone (dhea, 1) using penicillium griseopurpureum smith and penicillium glabrum (wehmer) westling has been investigated. neither fungi had been examined previously for steroid biotransformation. one novel metabolic product of dhea (1) transformed with p. griseopurpureum smith, 15α-hydroxy-17a-oxa-d-homo-androst-4-ene-3,17-dione (5), was reported for the first time. the steroid products were assigned by interpretation of their spectral data such as (1) ... | 2010 | 20600202 |
| use of response surface methodology to optimise environmental stress conditions on penicillium glabrum, a food spoilage mould. | fungi are ubiquitous microorganisms often associated with spoilage and biodeterioration of a large variety of foods and feedstuffs. their growth may be influenced by temporary changes in intrinsic or environmental factors such as temperature, water activity, ph, preservatives, atmosphere composition, all of which may represent potential sources of stress. molecular-based analyses of their physiological responses to environmental conditions would help to better manage the risk of alteration and p ... | 2010 | 20943160 |
| chacinero's lung - hypersensitivity pneumonitis due to dry sausage dust. | hypersensitivity pneumonitis (hp) comprises a large group of diseases that occur secondary to inhalation of a variety of antigens. this report describes a little-known cause of hp, previously unreported in the english literature. | 2011 | 21327319 |
| volatile compounds in samples of cork and also produced by selected fungi. | the production of volatile compounds by microbial communities of cork samples taken during the cork manufacturing process was investigated. the majority of volatiles were found in samples collected at two stages: resting after the first boiling and nontreated cork disks. volatile profiles produced by microbiota in both stages are similar. the releasable volatile compounds and 2,4,6-trichloroanisole (tca) produced in cork-based culture medium by five isolated fungal species in pure and mixed cult ... | 2011 | 21574572 |
| characterization of cellulases of fungal endophytes isolated from espeletia spp. | endophytes are microorganisms that asymptomatically invade plant tissues. they can stimulate plant growth and/or provide defense against pathogen attacks through the production of secondary metabolites. most endophyte species are still unknown, and because they may have several applications, the study of their metabolic capabilities is essential. we characterized 100 endophytes isolated from espeletia spp., a genus unique to the paramo ecosystem, an extreme environment in the andean mountain ran ... | 2012 | 23274988 |
| effects of essential oils from eucalyptus globulus leaves on soil organisms involved in leaf degradation. | the replacement of native portuguese forests by eucalyptus globulus is often associated with deleterious effects on terrestrial and aquatic communities. several studies have suggested that such a phenomenon is linked with the leaf essential oils released into the environment during the eucalyptus leaf degradation process. however, to date, the way these compounds affect leaf degradation in terrestrial systems i.e. by direct toxic effects to soil invertebrates or indirectly by affecting food of s ... | 2013 | 23577212 |
| generation of the volatile spiroketals conophthorin and chalcogran by fungal spores on polyunsaturated fatty acids common to almonds and pistachios. | the spiroketal (e)-conophthorin has recently been reported as a semiochemical of the navel orangeworm moth, a major insect pest of california pistachios and almonds. conophthorin and the isomeric spiroketal chalcogran are most commonly known as semiochemicals of several scolytid beetles. conophthorin is both an insect- and plant-produced semiochemical widely recognized as a nonhost plant volatile from the bark of several angiosperm species. chalcogran is the principal aggregation pheromone compo ... | 2012 | 23153034 |
| the mycobiota of air inside and outside the meju fermentation room and the origin of meju fungi. | the fungi on meju are known to play an important role as degrader of macromolecule of soybeans. in order to elucidate the origin of fungi on traditional meju, mycobiota of the air both inside and outside traditional meju fermentation rooms was examined. from 11 samples of air collected from inside and outside of 7 meju fermentation rooms, 37 genera and 90 species of fungi were identified. in outside air of the fermentation room, cladosporium sp. and cladosporium cladosporioides were the dominant ... | 2015 | 26539041 |
| 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 |
| endophytic fungi from medicinal plant bauhinia forficata: diversity and biotechnological potential. | bauhinia forficata is native to south america and used with relative success in the folk medicine in brazil. the diversity, antibacterial activity, and extracellular hydrolytic enzymes of endophytic fungi associated with this plant were studied. plant samples, which included leaves, sepals, stems, and seeds, were used. ninety-five endophytic fungal were isolated (18 from leaves, 22 from sepals, 46 from stems, and nine from seeds), comprising 28 species. the most frequently isolated species were ... | 2015 | 26221088 |
| bioconversion of aflatoxin g1 to aflatoxin b 3 by selected fungi. | aflatoxin g1 (afg1) was transformed into aflatoxin b3 (afb3) by the fungirhodotorula sp,sporobolomyces sp,rhizopus oryzae nrrl395,pythium ultimum, aspergillus terreus, a clavatus and penicillium frequentans grown in a medium containing afg1, difco potato dextrose broth, yeast extract, and peptone both in liquid shaken cultures and in solid static cultures at 25°c in the dark. a maximum rate of transformation of 10 % was obtained after 2 to 3 weeks of incubation. the transformation was correlated ... | 1990 | 23605445 |
| photoinduced synthesis of new diisochromenochromen-4-ones and their antimicrobial activities. | the diisochromenochromen-4-one 3a-3b, 4a-4c, 5a-6a & 7 have been prepared from the photocyclization reaction of bischromen-4-one 2a-2e. the later compounds are obtained from the o-alkylation of the suitable 3-hydroxy-2-aryl-4h-chromen-4-one 1a-1e with 4,4'-bischloromethyl-diphenyl in dry acetone, anhydrous k₂co₃, and ptc (bu₄n⁺i⁻) under refluxing conditions. the structures of compounds 2a-2e, 3a-3b, 4a-4c, 5a-6a & 7 have been characterized from the rigorous analysis of their ir, ¹h-nmr, ¹³c-nm ... | 2012 | 22666175 |
| antioxidant and antimicrobial activity of natural phenolic extract from defatted soybean flour by-product for stone fruit postharvest application. | fresh fruit is highly perishable during storage and transport, so there has been growing interest in finding safe and natural antimicrobial compounds as a control tool. phenolic compounds are secondary metabolites naturally present in vegetable material and have been associated with antimicrobial and antioxidant properties. therefore, the aim of this study was to investigate the antioxidant capacity and potential antimicrobial effect of phenolic extract obtained from defatted soybean flour again ... | 2016 | 26133536 |
| efficient continuous biosynthesis of silver nanoparticles by activated sludge micromycetes with enhanced tolerance to metal ion toxicity. | the method for producing agnps by granules of activated sludge micromycetes with enhanced tolerance to metal ion toxicity - penicillium glabrum, fusarium nivale and fusarium oxysporum has been developed; the optimum conditions for agnp biosynthesis being found: the ag(+) ion concentration, duration of the contact of microbial cells with silver ions, a growth phase of microorganisms, medium composition, a рн value, mixing conditions, and also lighting intensity. the effect of cl(-), so4(2-) and h ... | 2016 | 27866609 |
| toxic influence of silver and uranium salts on activated sludge of wastewater treatment plants and synthetic activated sludge associates modeled on its pure cultures. | toxic impact of silver and uranium salts on activated sludge of wastewater treatment facilities has been studied. some dominating cultures (an active nitrogen fixer agrobacterium tumifaciens (a.t) and micromyces such as fusarium nivale, fusarium oxysporum, and penicillium glabrum) have been isolated and identified as a result of selection of the activated sludge microorganisms being steadiest under stressful conditions. for these cultures, the lethal doses of silver amounted 1, 600, 50, and 300 ... | 2015 | 25027236 |
| optimization of culture conditions for some identified fungal species and stability profile of α-galactosidase produced. | microbial α-galactosidase preparations have implications in medicine and in the modification of various agricultural products as well. in this paper, four isolated fungal strains such as al-3, wf-3, wp-4 and cl-4 from rhizospheric soil identified as penicillium glabrum (al-3), trichoderma evansii (wf-3), lasiodiplodia theobromae (wp-4) and penicillium flavus (cl-4) based on their morphology and microscopic examinations, are screened for their potential towards α-galactosidases production. the cu ... | 2013 | 23424684 |
| [investigation of mold fungi in air samples of elementary schools and evaluation of allergen-specific ige levels in students' sera]. | atmospheric fungal spores play important role in allergic reactions in atopic individuals. monitorization of those spores found in the environment of atopic cases is crucial for the choice of the antigens that will be included in allergen screening procedures and precautions to be taken against mold-originated health problems. since most of the people spend plenty of time indoors in recent years, the effects of exposure to indoor air fungi on human health have gained importance. this study was a ... | 2012 | 22639315 |
| influence of storage temperature on growth of penicillium polonicum and penicillium glabrum and potential for deterioration of frozen chicken nuggets. | the practice of freezing food is one of the main processes used by the industry to prolong the shelf life of foods. its use has expanded in recent years due to the increased consumption of convenience products, many of which are sold in frozen form. the temperature at which these foods are maintained during marketing in supermarkets or stored in the consumer's home is critical to ensure microbiological stability of products. temperature abuse can allow microbial growth, especially growth of fila ... | 2015 | 25647332 |
| clean up fly ash from coal burning plants by new isolated fungi fusarium oxysporum and penicillium glabrum. | in turkey approximately 45 million tons of coals are burned in a year and 19.3 million tons of fly ash have emerged. the bioremediation of heavy metals or different elements from fly ash makes them bio-available. however, in previous studies, requiring of long operational time and failing to show tolerance to high pulp densities of fly ash of selected fungal species makes them impractical. in this work, bioremediation of fly ash by new isolated fungi fusarium oxysporum and penicillium glabrum we ... | 2017 | 28554126 |
| assessment of exposure to the penicillium glabrum complex in cork industry using complementing methods. | cork oak is the second most dominant forest species in portugal and makes this country the world leader in cork export. occupational exposure to chrysonilia sitophila and the penicillium glabrum complex in cork industry is common, and the latter fungus is associated with suberosis. however, as conventional methods seem to underestimate its presence in occupational environments, the aim of our study was to see whether information obtained by polymerase chain reaction (pcr), a molecular-based meth ... | 2015 | 26444341 |
| unveiling the fungal mycobiota present throughout the cork stopper manufacturing process. | a particular fungal population is present in the main stages of the manufacturing process of cork discs. its diversity was studied using both dependent (isolation) and independent culture methods (denaturing gel gradient electrophoresis and cloning of the its1-5.8s-its2 region). the mycobiota in the samples taken in the stages before and after the first boiling seems to be distinct from the population in the subsequent manufacturing stages. most isolated fungi belong to the genera penicillium, e ... | 2012 | 22630140 |
| adaptive conditions and safety of the application of penicillium frequentans as a biocontrol agent on stone fruit. | penicillium frequentans (pf909) reduces brown rot caused by monilinia spp. in stone fruit. the registration of a microbial biocontrol agent in europe requires information on the risks and safety of a biological product. this study focused on the impact of the physical environment on pf909 survival and growth, pf909 mycotoxin production on fruit surface, and the pf909 resistance to commercial antifungal compounds used in animal and human medicine. the effect of temperature (4 to 37°c), water acti ... | 2017 | 28511111 |
| sclerotiorin is non-mutagenic and inhibits human pmnl 5-lipoxygenase and platelet aggregation. | sclerotiorin, isolated from the fermented broth of penicillium frequentans, exhibited potent inhibition against human polymorphonuclear leukocytes 5-lipoxygenase and human platelet aggregation with a half maximal value 36 μm and 250 μm, respectively. further, the ames test has demonstrated the sclerotiorin to be non-mutagenic. | 2015 | 26011984 |
| production, purification, and characterization of a major penicillium glabrum xylanase using brewer's spent grain as substrate. | in recent decades, xylanases have been used in many processing industries. this study describes the xylanase production by penicillium glabrum using brewer's spent grain as substrate. additionally, this is the first work that reports the purification and characterization of a xylanase using this agroindustrial waste. optimal production was obtained when p. glabrum was grown in liquid medium in ph 5.5, at 25 °c, under stationary condition for six days. the xylanase from p. glabrum was purified to ... | 2013 | 23762855 |
| pectinase production by penicillium frequentans. | high activities of extracellular pectinase with viscosity-diminishing and reducing groups-releasing activities were produced by penicillium frequentans after 48 h at 35°c, in agitated cultures supplemented with 0.5% citrus pectin and initial ph of 2.5. under these conditions the fungus also produced high activity of pectinesterase. at an initial ph of 7.0 or 8.0, pectin lyase activity was also detected. enzyme activity releasing reducing sugars was more stable at 50°c than viscosity-diminishing ... | 1991 | 24425276 |