| occurrence and biodiversity of aspergillus section nigri on 'tannat' grapes in uruguay. | ochratoxin a (ota) is a nephrotoxic mycotoxin which has been found worldwide as a contaminant in wines. it is produced on grapes mainly by molds from aspergillus section nigri. this study has demonstrated for the first time the occurrence of black aspergilli on tannat grapes from uruguay, in a two year survey. aspergillus uvarum (uniseriate) and aspergillus welwitschiae (from aspergillusniger aggregate) were the prevalent species whereas aspergillus carbonarius which is considered the main ota p ... | 2016 | 26398282 |
| aspergillus tubingensis and aspergillus niger as the dominant black aspergillus, use of simple pcr-rflp for preliminary differentiation. | this work aimed to identify the species distribution of common clinical and environmental isolates of black aspergilli based on simple restriction fragment length polymorphism (rflp) analysis of the β-tubulin gene. a total of 149 clinical and environmental strains of black aspergilli were collected and subjected to preliminary morphological examination. total genomic dnas were extracted, and pcr was performed to amplify part of the β-tubulin gene. at first, 52 randomly selected samples were spec ... | 2016 | 26852194 |
| diversity of mycotoxin-producing black aspergilli in canadian vineyards. | several aspergillus species produce ochratoxin a (ota) and/or fumonisins on wine and table grapes. the relevant species and their mycotoxins have been investigated in a number of wine-producing regions around the world; however, similar data have not been reported for canadian vineyards. a multiyear survey of black aspergilli in niagara, on, vineyards was conducted to determine the diversity of species present and to assess the risk of ota and fumonisin contamination of wine grapes from this reg ... | 2016 | 26837797 |
| aspergillus uvarum sp. nov., an uniseriate black aspergillus species isolated from grapes in europe. | a novel species, aspergillus uvarum sp. nov., is described within aspergillus section nigri. this species can be distinguished from other black aspergilli based on internal transcribed spacers (its), beta-tubulin and calmodulin gene sequences, by aflp analysis and by extrolite profiles. aspergillus uvarum sp. nov. isolates produced secalonic acid, common to other aspergillus japonicus-related taxa, and geodin, erdin and dihydrogeodin, which are not produced by any other black aspergilli. none of ... | 2008 | 18398215 |
| two novel species of aspergillus section nigri from indoor air. | aspergillus floridensis and a. trinidadensis spp. nov. are described as novel uniseriate species of aspergillus section nigri isolated from air samples. to describe the species we used phenotypes from 7-d czapek yeast extract agar culture (cya), creatine agar culture (crea) and malt extract agar culture (mea), with support by molecular analysis of the β-tubulin, calmodulin, rna polymerase ii (rpb2), and translation elongation factor-alpha (tef) gene amplified and sequenced from 56 air isolates a ... | 2012 | 23355969 |
| integrated use of residues from olive mill and winery for lipase production by solid state fermentation with aspergillus sp. | two-phase olive mill waste (tpomw) is presently the major waste produced by the olive mill industry. this waste has potential to be used as substrate for solid state fermentation (ssf) despite of its high concentration of phenolic compounds and low nitrogen content. in this work, it is demonstrated that mixtures of tpomw with winery wastes support the production of lipase by aspergillus spp. by agar plate screening, aspergillus niger mum 03.58, aspergillus ibericus mum 03.49, and aspergillus uva ... | 2014 | 24276916 |
| what causes canine sino-nasal aspergillosis? a molecular approach to species identification. | on the basis of phenotypic identification methods, aspergillus fumigatus is reported as the most commonly identified aetiological agent of canine sino-nasal aspergillosis (sna). however, definitive identification of aspergillus spp. using phenotypic features alone is unreliable. the aim of this study was to determine the molecular identities of fungal species causing sna in dogs. genomic dna was extracted from 91 fungal isolates from 90 dogs diagnosed with sna in australia, the usa and belgium, ... | 2014 | 24559745 |
| enhancing the bioconversion of winery and olive mill waste mixtures into lignocellulolytic enzymes and animal feed by aspergillus uvarum using a packed-bed bioreactor. | wineries and olive oil industries are dominant agro-industrial activities in southern european regions. olive pomace, exhausted grape marc, and vine shoot trimmings are lignocellulosic residues generated by these industries, which could be valued biotechnologically. in the present work these residues were used as substrate to produce cellulases and xylanases through solid-state fermentation using aspergillus uvarum mum 08.01. for that, two factorial designs (3(2)) were first planned to optimize ... | 2015 | 26165254 |
| the first case of onychomycosis due to aspergillus uvarum (section nigri). | | 2015 | 25728245 |