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Abstract:

Background: Many Alternaria species have been studied for their ability to produce bioactive secondary metabolites, such as tentoxin (TEN), some of which have toxic properties. The main food contaminant toxins are tenuazonic acid, alternariol (AOH), alternariol monomethyl ether (AME), altenuene, and altertoxins i, ii and iii. Aims: To determine the profiles of secondary metabolites characteristic of Alternaria strains isolated from tomato for their chemotaxonomic classification. Methods: The profiles of secondary metabolites were determined by HPLC MS. Results: The Alternaria isolates obtained from spoiled tomatoes belong, according to their morphological characteristics, to the species groups Alternaria alternata, Alternaria tenuissima and Alternaria arborescens, with A. tenuissima being the most frequent. The most frequent profiles of secondary metabolites belonging to the species groups A. alternata (AOH, AME, TEN), A. tenuissima (AOH, AME, TEN, tenuazonic acid) and A. arborescens (AOH, AME, TEN, tenuazonic acid) were determined, with some isolates of the latter being able to synthesize AAL toxins. Conclusions: Secondary metabolite profiles are a useful tool for the differentiation of small spored Alternaria isolates not easily identifiable by their morphological characteristics. © 2013 Revista Iberoamericana de Micología.

Registro:

Documento: Artículo
Título:Determination of the profiles of secondary metabolites characteristic of Alternaria strains isolated from tomato
Autor:Benavidez Rozo, M.E.; Patriarca, A.; Cabrera, G.; Fernández Pinto, V.E.
Filiación:Departamento de Química Orgánica, Facultad de Ciencias Exactas, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Alternaria; Metabolitos secundarios; Micotoxinas; Mycotoxins; Secondary metabolites; Tomate; Tomato; altenuene; alternariol; alternariol methyl ether; altertoxin i; altertoxin ii; altertoxin iii; mycotoxin; tenuazonic acid; unclassified drug; mycotoxin; Alternaria; Alternaria alternata; Alternaria arborescens; Alternaria tenuissima; article; bacterial strain; chemotaxonomy; food spoilage; fungal structures; fungus isolation; high performance liquid chromatography; metabolite; nonhuman; plant fungus interaction; tomato; Alternaria; Argentina; classification; comparative study; food contamination; isolation and purification; metabolism; microbiological examination; microbiology; plant disease; secondary metabolism; species difference; tandem mass spectrometry; Alternaria; Argentina; Chromatography, High Pressure Liquid; Food Contamination; Lycopersicon esculentum; Mycological Typing Techniques; Mycotoxins; Plant Diseases; Secondary Metabolism; Species Specificity; Tandem Mass Spectrometry
Año:2014
Volumen:31
Número:2
Página de inicio:119
Página de fin:124
DOI: http://dx.doi.org/10.1016/j.riam.2013.09.002
Título revista:Revista Iberoamericana de Micologia
Título revista abreviado:Rev. Iberoam. Micol.
ISSN:11301406
CODEN:RIBME
CAS:alternariol, 641-38-3; tenuazonic acid, 610-88-8, 75652-74-3; Mycotoxins
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11301406_v31_n2_p119_BenavidezRozo

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Citas:

---------- APA ----------
Benavidez Rozo, M.E., Patriarca, A., Cabrera, G. & Fernández Pinto, V.E. (2014) . Determination of the profiles of secondary metabolites characteristic of Alternaria strains isolated from tomato . Revista Iberoamericana de Micologia, 31(2), 119-124.
http://dx.doi.org/10.1016/j.riam.2013.09.002
---------- CHICAGO ----------
Benavidez Rozo, M.E., Patriarca, A., Cabrera, G., Fernández Pinto, V.E. "Determination of the profiles of secondary metabolites characteristic of Alternaria strains isolated from tomato " . Revista Iberoamericana de Micologia 31, no. 2 (2014) : 119-124.
http://dx.doi.org/10.1016/j.riam.2013.09.002
---------- MLA ----------
Benavidez Rozo, M.E., Patriarca, A., Cabrera, G., Fernández Pinto, V.E. "Determination of the profiles of secondary metabolites characteristic of Alternaria strains isolated from tomato " . Revista Iberoamericana de Micologia, vol. 31, no. 2, 2014, pp. 119-124.
http://dx.doi.org/10.1016/j.riam.2013.09.002
---------- VANCOUVER ----------
Benavidez Rozo, M.E., Patriarca, A., Cabrera, G., Fernández Pinto, V.E. Determination of the profiles of secondary metabolites characteristic of Alternaria strains isolated from tomato . Rev. Iberoam. Micol. 2014;31(2):119-124.
http://dx.doi.org/10.1016/j.riam.2013.09.002