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Use of GFP-tagged strains of Penicillium digitatum and Penicillium expansum to study host-pathogen interactions in oranges and apples.

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Issue date
2012
Author
Burón Moles, Gemma
López-Pérez, M.
González-Candelas, Luis
Viñas Almenar, Inmaculada
Teixidó i Espasa, Neus
Usall i Rodié, Josep
Torres Sanchis, Rosario
Suggested citation
Burón Moles, Gemma; López-Pérez, M.; González-Candelas, Luis; Viñas Almenar, Inmaculada; Teixidó i Espasa, Neus; Usall i Rodié, Josep; Torres Sanchis, Rosario; . (2012) . Use of GFP-tagged strains of Penicillium digitatum and Penicillium expansum to study host-pathogen interactions in oranges and apples.. International Journal of Food Microbiology, 2012, núm. 160, p. 162-170. https://doi.org/10.1016/j.ijfoodmicro.2012.10.005.
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Abstract
Penicillium digitatum and Penicillium expansum are responsible for green and blue molds in citrus and pome fruits, respectively, which result in major monetary losses worldwide. In order to study their infection process in fruits, we successfully introduced a green fluorescent protein (GFP) encoding gene into wild type P. digitatum and P. expansum isolates, using Agrobacterium tumefaciens-mediated transformation (ATMT), with hygromycin B resistance as the selectable marker. To our knowledge, this is the first report describing the transformation of these two important postharvest pathogens with GFP and the use of transformed strains to study compatible and non-host pathogen interactions. Transformation did not affect the pathogenicity or the ecophysiology of either species compared to their respective wild type strains. The GFP-tagged strains were used for in situ analysis of compatible and non-host pathogen interactions on oranges and apples. Knowledge of the infection process of apples and oranges by these pathogens will facilitate the design of novel strategies to control these postharvest diseases and the use of the GFP-tagged strains will help to determine the response of P. digitatum and P. expansum on/in plant surface and tissues to different postharvest treatments.
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http://hdl.handle.net/10459.1/48276
DOI
https://doi.org/10.1016/j.ijfoodmicro.2012.10.005
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International Journal of Food Microbiology, 2012, núm. 160, p. 162-170
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  • Articles publicats (Tecnologia dels Aliments) [566]

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