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dc.contributor.author
Da Cruz Cabral, Lucía Mariana
dc.contributor.author
Rodriguero, Marcela Silvina
dc.contributor.author
Stenglein, Sebastian Alberto
dc.contributor.author
Nielsen, Kristian Fog
dc.contributor.author
Patriarca, Andrea Rosana
dc.date.available
2018-01-18T18:29:38Z
dc.date.issued
2017-09
dc.identifier.citation
Da Cruz Cabral, Lucía Mariana; Rodriguero, Marcela Silvina; Stenglein, Sebastian Alberto; Nielsen, Kristian Fog; Patriarca, Andrea Rosana; Characterization of small-spored Alternaria from Argentinean crops through a polyphasic approach; Elsevier Science; International Journal of Food Microbiology; 257; 9-2017; 206-215
dc.identifier.issn
0168-1605
dc.identifier.uri
http://hdl.handle.net/11336/33824
dc.description.abstract
Small-spored Alternaria have been isolated from a wide variety of food crops, causing both economic losses and human health risk due to the metabolites produced. Their taxonomy has been discussed widely, but no scientific consensus has been established in this field to date. Argentina is a major exporter of agricultural products, so it is essential to thoroughly understand the physiological behaviour of this pathogen in a food safety context. Thus, the objective of this work was to characterize small-spored Alternaria spp. obtained from tomato fruits, pepper fruits, wheat grains and blueberries from Argentina by a polyphasic approach involving metabolomic and phylogenetic analyses based on molecular and morphological characters. Morphological analysis divided the population studied into three groups; A. arborescens sp.-grp., A. tenuissima sp.-grp., and A. alternata sp.-grp. However, when these characters were simultaneously analysed with molecular data, no clearly separated groups were obtained. Haplotype network and phylogenetic analysis (both Bayesian and maximum parsimony) of a conserved region yielded the same result, suggesting that all isolates belong to the same species. Furthermore, no correlation could be established between morphological species-groups and a metabolite or group of metabolites synthesized. Thus, the whole set of analyses carried out in the present work supports the hypothesis that these small-spored Alternaria isolates from food belong to the same species. Identification at species level through classical morphology or modern molecular techniques does not seem to be a useful tool to predict toxicological risk in food matrices. The detection of any small-spored Alternaria from Section Alternaria (D.P. Lawr., Gannibal, Peever & B.M. Pryor 2013) in food implies a potential toxicological risk.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Alternaria
dc.subject
Endopolygalacturonase Gene
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Polyphasic Approach
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Metabolites Profile
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Food
dc.subject.classification
Alimentos y Bebidas
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Otras Ingenierías y Tecnologías
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Characterization of small-spored Alternaria from Argentinean crops through a polyphasic approach
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-19T18:48:49Z
dc.journal.volume
257
dc.journal.pagination
206-215
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Da Cruz Cabral, Lucía Mariana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina
dc.description.fil
Fil: Rodriguero, Marcela Silvina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
dc.description.fil
Fil: Stenglein, Sebastian Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina
dc.description.fil
Fil: Nielsen, Kristian Fog. Technical University of Denmark; Dinamarca
dc.description.fil
Fil: Patriarca, Andrea Rosana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina
dc.journal.title
International Journal of Food Microbiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0168160517302945
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijfoodmicro.2017.06.026


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