Abstract:
AIM:The aim of this work was to evaluate the effect of Planococcus ficus infection in red wine grapes on Aspergillus section Nigri and ochratoxin A (OTA) contamination. METHODS AND RESULTS:During 2006/2007 and 2008/2009 vintages, Merlot, Malbec and Cabernet Sauvignon varieties divided into two categories of grape samples (undamaged and damaged by P. ficus) were evaluated. Regardless of the grape variety and the harvest season evaluated, Aspergillus section Nigri incidence and the mean OTA concentration in damaged berries were significantly higher than that in the undamaged ones (P < 0.05; P < 0.001). The Merlot variety showed the highest level of black aspergilli contamination in damaged grapes during the 2006/2007 vintage (53.5% of infection), whereas Malbec presented the highest incidence during the 2008/2009 vintage (57.6% of infection). The Cabernet Sauvignon variety showed the highest OTA levels, ranging from 0.1 to 140 microg kg(-1). CONCLUSIONS:The presence of P. ficus in vineyards increased the risk of OTA occurrence in grapes, suggesting the need to implement insect control at preharvest stage to reduce the entry of OTA in the wine production chain. SIGNIFICANCE AND IMPACT OF THE STUDY:This study is the first report on the influence of P. ficus on the potential risk of OTA contamination in grapes.
journal_name
Lett Appl Microbioljournal_title
Letters in applied microbiologyauthors
Chiotta ML,Ponsone ML,Torres AM,Combina M,Chulze SNdoi
10.1111/j.1472-765x.2010.02884.xsubject
Has Abstractpub_date
2010-08-01 00:00:00pages
212-8issue
2eissn
0266-8254issn
1472-765Xjournal_volume
51pub_type
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
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doi:10.1111/j.1472-765X.2005.01666.x
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更新日期:2017-02-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2007.02281.x
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
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更新日期:2008-03-01 00:00:00
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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更新日期:2011-01-01 00:00:00
abstract::To investigate the potential usefulness of u.v. germicidal irradiation (UVGI) in preventing the spread of Burkholderia cepacia, an important pathogen in cystic fibrosis (CF), the in-vitro susceptibility of B. cepacia to UVGI was determined. Five strains were exposed to UVGI from a 7.2-W source. Burkholderia cepacia wa...
journal_title:Letters in applied microbiology
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abstract::Currently used alum precipitated and oil adjuvant vaccines against HS caused by Pasteurella multocida B:2, have side effects and short-lived immunity, leading to regular catastrophic outbreaks in bovines in Asian subcontinent. The need for the development of an improved vaccine with longer immunity and the ability to ...
journal_title:Letters in applied microbiology
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更新日期:2018-09-01 00:00:00