| molecular identification of species from the penicillium roqueforti group associated with spoiled animal feed. | the penicillium roqueforti group has recently been split into three species, p. roqueforti, penicillium carneum, and penicillium paneum, on the basis of differences in ribosomal dna sequences and secondary metabolite profiles. we reevaluated the taxonomic identity of 52 livestock feed isolates from sweden, previously identified by morphology as p. roqueforti, by comparing the sequences of the ribosomal internal transcribed spacer region. identities were confirmed with random amplified polymorphi ... | 2000 | 10742236 |
| differentiation of species from the penicillium roqueforti group by volatile metabolite profiling. | species from the penicillium roqueforti group were differentiated by volatile metabolite profiling primarily of sesquiterpenes. a total of 24 isolates from species p. roqueforti, penicillium carneum, and the recently described species penicillium paneum were inoculated on yeast extract sucrose agar. volatile metabolites were collected by diffusive sampling onto tubes containing tenax ta, overnight between the fifth and sixth days of incubation. volatiles were thermally desorbed and analyzed by g ... | 2005 | 15686424 |
| mycological survey of ripped service tree fruits (sorbus domestica l.) with an emphasis on toxinogenic fungi. | to investigate a possible incidence of microscopic fungi in ripped service tree (sorbus domestica l.) fruits, a mycological survey was carried out during october-november 2003 in slovakia. this rare kind of fruit is renowned for its significant curative actions in various human and animal diseases. the study revealed that all 24 surface sterilized fruits analysed were contaminated with fungi. the most dominant endogenous contaminant encountered was cladosporium cladosporioides (fres.) de vries f ... | 2005 | 15734569 |
| fungi isolated from contaminated baled grass silage on farms in the irish midlands. | the incidence of fungal growth on baled grass silage was recorded on 35 farms in the irish midlands in 2003. fungal colonies were visible on 58 of 64 bales examined and the number of colonies per bale ranged from 1 to 12. on average, 5% of bale surface areas were affected. the fungus most prevalent on bales was penicillium roqueforti, present on 86% of bales and representing 52% of all isolates. other moulds isolated were penicillium paneum, geotrichum, fusarium and mucoraceous species. schizoph ... | 2005 | 15927422 |
| isolation and metabolite production by penicillium roqueforti, p. paneum and p. crustosum isolated in canada. | penicillium roqueforti, p. crustosum and p. paneum grow on ensiled grain and recycled feed unless properly treated. the former two species occur also on cut lumber in canada. these are known to produce a number of secondary metabolites including roquefortine. in cooler dairy production areas, including scandinavia and north america, cattle toxicosis has been associated with silage contaminated by these fungi. we collected strains associated with cow or cattle toxicoses. the principal metabolites ... | 2005 | 15983744 |
| the sequence of the isoepoxydon dehydrogenase gene of the patulin biosynthetic pathway in penicillium species. | interest in species of the genus penicillium is related to their ability to produce the mycotoxin patulin and to cause spoilage of fruit products worldwide. the sequence of the isoepoxydon dehydrogenase (idh) gene, a gene in the patulin biosynthetic pathway, was determined for 28 strains representing 12 different penicillium species known to produce the mycotoxin patulin. isolates of penicillium carneum, penicillium clavigerum, penicillium concentricum, penicillium coprobium, penicillium dipodom ... | 2007 | 17043910 |
| the identity of penicillium sp. 1, a major contaminant of the stone chambers in the takamatsuzuka and kitora tumuli in japan, is penicillium paneum. | penicillium appeared as the major dweller in the takamatsuzuka tumulus (tt) and kitora tumulus (kt) stone chambers, both located in the village of asuka, nara prefecture, in relation to the biodeterioration of the 1,300-year-old mural paintings, plaster walls and ceilings. of 662 penicillium isolates from 373 samples of the tt (sampling period, may 2004-2007) and the kt (sampling period, june 2004-sep 2007), 181 were phenotypically assigned as penicillium sp. 1 which shared similar phenotypic ch ... | 2009 | 19784794 |
| dynamics in the microbiology of maize silage during whole-season storage. | to monitor seasonal variations in the microbiology of maize silage and to determine whether the risk of fungal spoilage varies during whole-year storage. | 2010 | 20456530 |
| in vitro cytotoxicity of fungi spoiling maize silage. | penicillium roqueforti, penicillium paneum, monascus ruber, alternaria tenuissima, fusarium graminearum, fusarium avenaceum, byssochlamys nivea and aspergillus fumigatus have previously been identified as major fungal contaminants of danish maize silage. in the present study their metabolite production and in vitro cytotoxicity have been determined for fungal agar and silage extracts. all 8 fungal species significantly affected caco-2 cell viability in the resazurin assay, with large variations ... | 2011 | 20837087 |
| mycobiota of cocoa: from farm to chocolate. | the present work was carried out to study the mycobiota of cocoa beans from farm to chocolate. four hundred and ninety-four samples were analyzed at various stages of cocoa processing: (i) primary stage at the farm (fermentation, drying, and storage), (ii) secondary stage at processing (testa, nibs, liquor, butter, cake and powder) and (iii) the final chocolate product (dark, milk, white and powdered) collected from retail outlets. direct plating or dilution plating on dichloran 18% glycerol aga ... | 2011 | 21925035 |
| assessment of susceptibility of mould isolates towards biocides. | the aim of this study was to determine the susceptibility of 77 mould strains: aspergillus fumigatus (20), aspergillus flavus (8), aspergillus niger (4), aspergillus ochraceus (2), penicillium citrinum (15), penicillium crysogenum (14), penicillium aurantiogriseum (1), penicillium roquefortii (4), penicillium paneum (2), rhizopus spp. (3), tricoderma spp. (1) and mucor spp. (3) to biocides. | 2015 | 26420602 |
| hydrolysate from a mixture of legume flours with antifungal activity as an ingredient for prolonging the shelf-life of wheat bread. | aiming at identifying antifungal compounds from plant matrices to be used as ingredients in the bakery industry, a water/salt-soluble extract (wse) was produced from a legume enzyme hydrolysate, consisting of a mixture of pea, lentil, and faba bean flours, and assayed towards penicillium roqueforti dppmaf1. agar diffusion assays allowed the selection of the optimal processing conditions for hydrolysis. as shown by hyphal radial growth rate, the inhibition was observed towards several fungi, incl ... | 2017 | 28213038 |
| mycotoxins and other secondary metabolites produced in vitro by penicillium paneum frisvad and penicillium roqueforti thom isolated from baled grass silage in ireland. | secondary metabolites produced by penicillium paneum and penicillium roqueforti from baled grass silage were analyzed. a total of 157 isolates were investigated, comprising 78 p. paneum and 79 p. roqueforti isolates randomly selected from more than 900 colonies cultured from bales. the findings mostly agreed with the literature, although some metabolites were not consistently produced by either fungus. roquefortine c, marcfortine a, and andrastin a were consistently produced, whereas pr toxin an ... | 2006 | 17117820 |
| cytotoxic anthranilic acid derivatives from deep sea sediment-derived fungus penicillium paneum sd-44. | five new anthranilic acid derivatives, penipacids a-e (1-5), together with one known analogue (6), which was previously synthesized, were characterized from the ethyl acetate extract of the marine sediment-derived fungus penicillium paneum sd-44. their structures were elucidated mainly by extensive nmr spectroscopic and mass spectrometric analysis. the cytotoxicity and antimicrobial activity of the isolated compounds were evaluated. compounds 1, and 5 exhibited inhibitory activity against human ... | 2013 | 23966037 |
| triazole and dihydroimidazole alkaloids from the marine sediment-derived fungus penicillium paneum sd-44. | a novel triazole carboxylic acid, penipanoid a (1), two new quinazolinone alkaloids, penipanoids b (2) and c (3), and a very recently reported quinazolinone derivative (4) were isolated from the marine sediment-derived fungus penicillium paneum sd-44. their structures were elucidated by spectroscopic analysis, and the structure for 1 was confirmed by x-ray crystallographic analysis. compound 1 represents the first example of a triazole derivative from marine sediment-derived fungi, and compound ... | 2011 | 21495659 |
| 1-octen-3-ol inhibits conidia germination of penicillium paneum despite of mild effects on membrane permeability, respiration, intracellular ph, and changes the protein composition. | 1-octen-3-ol is a volatile germination self-inhibitor produced by penicillium paneum that blocks the germination process. the size of conidia treated with 1-octen-3-ol was similar to that of freshly harvested conidia. exposure to 1-octen-3-ol resulted in staining of 10-20% of the conidia with pi and toto, fluorescent dna probes that cannot enter cells with an intact membrane, whereas only 3-5% of non-treated conidia were stained. addition of 1-octen-3-ol to germinating conidia resulted in transi ... | 2005 | 16329973 |
| germination of penicillium paneum conidia is regulated by 1-octen-3-ol, a volatile self-inhibitor. | penicillium paneum is an important contaminant of cereal grains which is able to grow at low temperature, low ph, high levels of carbon dioxide, and under acid conditions. p. paneum produces mycotoxins, which may be harmful to animals and humans. we found that conidia in dense suspensions showed poor germination, suggesting the presence of a self-inhibitor. a volatile compound(s) produced by these high-density conditions also inhibited mycelial growth of different species of fungi belonging to a ... | 2004 | 15128538 |