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| Content Provider | Springer Nature Link |
|---|---|
| Author | Storari, Michelangelo Broggini, Giovanni A. L. Bigler, Laurent Corda, Emanuele Eccel, Emanuele Filippi, Riccardo Gessler, Cesare Pertot, Ilaria |
| Copyright Year | 2012 |
| Abstract | Members of the Aspergillus section Nigri, also known as black aspergilli, are responsible for the ochratoxin A (OTA) and fumonisins contamination of wine. The presence of black aspergilli in vineyards has been investigated extensively in warm climates, in which the incidence of these aspergilli on grapes and levels of OTA contamination of wines are commonly high. However, a detailed description of black aspergilli populations is needed in wine-producing cool regions to establish a baseline in view of the strengthening of temperature increase and in case of summer rainfall decrease. With this in mind, we isolated and characterized black aspergilli from grapes grown in an alpine region in Northern Italy (Trentino) during a 3-year sampling. Black aspergilli were isolated from around 10 % of the grape berries and most of the isolates were classified as A. niger, A. tubingensis and A. uvarum. A. carbonarius was isolated only once. OTA production was detected only in the A. carbonarius isolate and in one A. niger. Most of A. niger isolates were able to produce fumonisins. The presence of mycotoxins biosynthesis genes was assessed in A. niger isolates. An15g07920, a polyketide synthase (PKS) gene involved in OTA biosynthesis, was detected by PCR only in the single ochratoxigenic isolate. This strong correlation was not observed for anfum1, anfum6 and anfum8, three genes included in the A. niger fumonisin biosynthesis gene cluster, which were detected in different A. niger isolates not able to produce fumonisins. Projections of mean daily temperatures and monthly rainfall indicate that the presence of black aspergilli on grapes grown in vineyards of these valleys will probably increase in the future. |
| Starting Page | 631 |
| Ending Page | 645 |
| Page Count | 15 |
| File Format | |
| ISSN | 09291873 |
| Journal | European Journal of Plant Pathology |
| Volume Number | 134 |
| Issue Number | 3 |
| e-ISSN | 15738469 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2012-08-09 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Ochratoxin A Fumonisins A. carbonarius A. niger A. tubingensis Agriculture Ecology Plant Pathology Life Sciences Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Horticulture Agronomy and Crop Science |
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