http://www.cnr.it/ontology/cnr/individuo/prodotto/ID46333
Strains of Aureobasidium pullulans can lower ochratoxin A contamination in wine grapes. (Articolo in rivista)
- Type
- Label
- Strains of Aureobasidium pullulans can lower ochratoxin A contamination in wine grapes. (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
De Felice D.V., Solfrizzo M., de Curtis F., Lima G., Visconti A., Castoria R. (2008)
Strains of Aureobasidium pullulans can lower ochratoxin A contamination in wine grapes.
in Phytopathology
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- De Felice D.V., Solfrizzo M., de Curtis F., Lima G., Visconti A., Castoria R. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Scienze Animali, Vegetali e dellAmbiente, Università del Molise, Via F. De Sanctis,
86100, Campobasso, Italy; and second and fifth authors: Istituto di Scienze delle Produzioni Alimentari, C.N.R., Bari, Italy. (literal)
- Titolo
- Strains of Aureobasidium pullulans can lower ochratoxin A contamination in wine grapes. (literal)
- Abstract
- Wine contamination with ochratoxin A (OTA) is due to the attack of
wine grapes by ochratoxigenic Aspergillus carbonarius and Aspergillus
spp. section Nigri. Four A. pullulans strains, AU14-3-1, AU18-3B, AU34-
2, and LS30, are resistant to and actively degrade ochratoxin A in vitro.
The less toxic ochratoxin ± and the amino acid L-²-phenylalanine were
the major degradation products, deriving from the cleavage of the amide
bond linking these two moieties of OTA. The same strains were studied
further as biocontrol agents of A. carbonarius on wine grapes in laboratory
experiments. Three of the four strains significantly prevented infections
by A. carbonarius. Berries pretreated with the biocontrol agents and
infected with A. carbonarius contained lower amounts of OTA as
compared to the untreated infected control berries. Two of these strains
were shown to degrade OTA to ochratoxin ± in fresh grape must, but the
mechanisms of the decrease of OTA accumulation in infected berries
pretreated with the biocontrol agents remain to be elucidated. Assessment
of one strain carried out in the vineyard during the growing season of
2006 showed that the tested strain was an effective biocontrol agent,
reducing both severity of Aspergillus rots and OTA accumulation in wine
grapes. To our knowledge this is the first report describing the positive
influence of biocontrol agents on OTA accumulation in this crop species. (literal)
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