Universitat de Lleida
    • English
    • català
    • español
  • English 
    • English
    • català
    • español
  • Login
Repositori Obert UdL
View Item 
  •   DSpace Home
  • Recerca
  • Tecnologia dels Aliments
  • Articles publicats (Tecnologia dels Aliments)
  • View Item
  •   DSpace Home
  • Recerca
  • Tecnologia dels Aliments
  • Articles publicats (Tecnologia dels Aliments)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Conidia survival of Aspergillus section Nigri, Flavi and Circumdati under UV-A and UV-B radiation with cycling temperature/light regime

Thumbnail
View/Open
Postprint (920.0Kb)
Issue date
2016
Author
García Cela, Esther
Marín Sillué, Sònia
Reyes, Mónica
Sanchís Almenar, Vicente
Ramos Girona, Antonio J.
Impact


Web of Science logo    citations in Web of Science

Scopus logo    citations in Scopus

Google Scholar logo  Google Scholar
Share
Export to Mendeley
Metadata
Show full item record
Abstract
Bio-geographical differences in fungal infection distribution have been observed around the world, confirming that the climatic conditions are decisive in colonization. This research is focused on the impact of ultraviolet radiation (UV) on Aspergillus species, based on the consideration that an increase
in UV-B radiation may have large ecological effects. Conidia of six mycotoxigenic Aspergillus species isolated from vineyards located in the Northeast and South of Spain were incubated for 15 days under light/dark cycles and temperatures between 20 to 30 °C per day. Additionally, six hours of exposure to UV-A or UV-B radiation per day were included in the light exposure. UV irradiance used were 1.7 ± 0.2 mW·cm(-2) of UV-A (peak 365 nm) and 0.10 ± 0.2 mW·cm(-2) of UV-B (peak 312 nm). The intrinsic decrease of viability of conidia along time was accentuated when they were UV irradiated. UV-B radiation was more harmful. Conidial sensitivity to UV light was marked in A. section Circumdati. Conidia pigmentation could be related to UV sensitivity. Different resistance was observed within species belonging to sections Flavi and Nigri. An increase in UV radiation could lead to a reduction in the Aspergillus spp. inoculum present in field (vineyards, nuts, cereal crops). In addition, it could unbalance the spore species present in field leading to a higher predominance of dark pigmented conidia.
URI
http://hdl.handle.net/10459.1/62951
DOI
https://doi.org/10.1002/jsfa.7343
Is part of
Journal of the Science of Food and Agriculture, 2016, vol. 96, p. 2249-2256
Collections
  • Publicacions de projectes de recerca del Plan Nacional [1766]
  • Articles publicats (Agrotecnio Center) [692]
  • Articles publicats (Tecnologia dels Aliments) [408]

Contact Us | Send Feedback | Legal Notice
© 2019 BiD. Universitat de Lleida
Metadades subjectes a
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

Statistics

View Usage Statistics

D'interès

Política institucional d'accés obertDiposita les teves publicacionsDiposita dades de recercaSuport a la recerca

Contact Us | Send Feedback | Legal Notice
© 2019 BiD. Universitat de Lleida
Metadades subjectes a