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Toxins 2015, 7(3), 743-754; doi:10.3390/toxins7030743

Mycotoxin Production in Liquid Culture and on Plants Infected with Alternaria spp. Isolated from Rocket and Cabbage

1
Agroinnova—Centre of Competence for the Innovation in the Agro-Environmental Sector, University of Turin, Largo Paolo Braccini 2, Grugliasco, Turin 10095, Italy
2
DISAFA—Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Turin, Largo Paolo Braccini 2, Grugliasco, Turin 10095, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Paola Battilani
Received: 19 January 2015 / Revised: 23 February 2015 / Accepted: 25 February 2015 / Published: 5 March 2015
(This article belongs to the Collection Understanding Mycotoxin Occurrence in Food and Feed Chains)
View Full-Text   |   Download PDF [530 KB, uploaded 5 March 2015]

Abstract

Fungi belonging to the genus Alternaria are common pathogens of fruit and vegetables with some species able to produce secondary metabolites dangerous to human health. Twenty-eight Alternaria isolates from rocket and cabbage were investigated for their mycotoxin production. Five different Alternaria toxins were extracted from synthetic liquid media and from plant material (cabbage, cultivated rocket, cauliflower). A modified Czapek-Dox medium was used for the in vitro assay. Under these conditions, more than 80% of the isolates showed the ability to produce at least one mycotoxin, generally with higher levels for tenuazonic acid. However, the same isolates analyzed in vivo seemed to lose their ability to produce tenuazonic acid. For the other mycotoxins; alternariol, alternariol monomethyl ether, altenuene and tentoxin a good correlation between in vitro and in vivo production was observed. In vitro assay is a useful tool to predict the possible mycotoxin contamination under field and greenhouse conditions. View Full-Text
Keywords: Alternaria toxins; HPLC-MS/MS; Eruca sativa; Brassica oleacea Alternaria toxins; HPLC-MS/MS; Eruca sativa; Brassica oleacea
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Siciliano, I.; Ortu, G.; Gilardi, G.; Gullino, M.L.; Garibaldi, A. Mycotoxin Production in Liquid Culture and on Plants Infected with Alternaria spp. Isolated from Rocket and Cabbage. Toxins 2015, 7, 743-754.

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