Alternaria species and their associated mycotoxins

The genus Alternaria includes more than 250 species. The traditional methods for identification of Alternaria species are based on morphological characteristics of the reproductive structures and sporulation patterns under controlled culture conditions. Cladistics analyses of “housekeeping genes” co...

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Autor principal:	Patriarca, Andrea Rosana
Publicado:	2017
Materias:	Alternaria species Fruits Grains Mycotoxins Taxonomy Vegetables alternariol alternariol monomethyl ether altertoxin mycotoxin perylene tentoxin tenuazonic acid tetramic acid derivative unclassified drug Alternaria apple cereal chemotaxonomy citrus fruit food fungal gene fungal virulence fungus culture fungus identification host housekeeping gene metabolite molecular phylogeny morphological trait nonhuman plant disease sporogenesis tomato animal animal food classification food contamination food safety genetics host pathogen interaction human metabolism metabolome metabolomics microbiology plant procedures secondary metabolism Animal Feed Animals Food Contamination Food Safety Host-Pathogen Interactions Humans Metabolome Metabolomics Plants Secondary Metabolism
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10643745_v1542_n_p13_Pinto http://hdl.handle.net/20.500.12110/paper_10643745_v1542_n_p13_Pinto
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_10643745_v1542_n_p13_Pinto
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spelling	paper:paper_10643745_v1542_n_p13_Pinto2023-06-08T16:04:06Z Alternaria species and their associated mycotoxins Patriarca, Andrea Rosana Alternaria species Fruits Grains Mycotoxins Taxonomy Vegetables alternariol alternariol monomethyl ether altertoxin mycotoxin perylene tentoxin tenuazonic acid tetramic acid derivative unclassified drug mycotoxin Alternaria apple cereal chemotaxonomy citrus fruit food fungal gene fungal virulence fungus culture fungus identification host housekeeping gene metabolite molecular phylogeny morphological trait nonhuman plant disease sporogenesis tomato Alternaria animal animal food classification food contamination food safety genetics host pathogen interaction human metabolism metabolome metabolomics microbiology plant procedures secondary metabolism Alternaria Animal Feed Animals Food Contamination Food Safety Host-Pathogen Interactions Humans Metabolome Metabolomics Mycotoxins Plants Secondary Metabolism The genus Alternaria includes more than 250 species. The traditional methods for identification of Alternaria species are based on morphological characteristics of the reproductive structures and sporulation patterns under controlled culture conditions. Cladistics analyses of “housekeeping genes” commonly used for other genera, failed to discriminate among the small-spored Alternaria species. The development of molecular methods achieving a better agreement with morphological differences is still needed. The production of secondary metabolites has also been used as a means of classification and identification. Alternaria spp. can produce a wide variety of toxic metabolites. These metabolites belong principally to three different structural groups: (1) the dibenzopyrone derivatives, alternariol (AOH), alternariol monomethyl ether (AME), and altenuene (ALT); (2) the perylene derivative altertoxins (ATX-I, ATX-II, and ATX II); and (3) the tetramic acid derivative, tenuazonic acid (TeA). TeA, AOH, AME, ALT, and ATX-I are the main. Certain species in the genus Alternaria produce host-specific toxins (HSTs) that contribute to their pathogenicity and virulence. Alternaria species are plant pathogens that cause spoilage of agricultural commodities with consequent mycotoxin accumulation and economic losses. Vegetable foods infected by Alternaria rot could introduce high amounts of these toxins to the human diet. More investigations on the toxic potential of these toxins and their hazard for human consumption are needed to make a reliable risk assessment of dietary exposure. © Springer Science+Business Media LLC 2017. Fil:Patriarca, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10643745_v1542_n_p13_Pinto http://hdl.handle.net/20.500.12110/paper_10643745_v1542_n_p13_Pinto
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Alternaria species Fruits Grains Mycotoxins Taxonomy Vegetables alternariol alternariol monomethyl ether altertoxin mycotoxin perylene tentoxin tenuazonic acid tetramic acid derivative unclassified drug mycotoxin Alternaria apple cereal chemotaxonomy citrus fruit food fungal gene fungal virulence fungus culture fungus identification host housekeeping gene metabolite molecular phylogeny morphological trait nonhuman plant disease sporogenesis tomato Alternaria animal animal food classification food contamination food safety genetics host pathogen interaction human metabolism metabolome metabolomics microbiology plant procedures secondary metabolism Alternaria Animal Feed Animals Food Contamination Food Safety Host-Pathogen Interactions Humans Metabolome Metabolomics Mycotoxins Plants Secondary Metabolism
spellingShingle	Alternaria species Fruits Grains Mycotoxins Taxonomy Vegetables alternariol alternariol monomethyl ether altertoxin mycotoxin perylene tentoxin tenuazonic acid tetramic acid derivative unclassified drug mycotoxin Alternaria apple cereal chemotaxonomy citrus fruit food fungal gene fungal virulence fungus culture fungus identification host housekeeping gene metabolite molecular phylogeny morphological trait nonhuman plant disease sporogenesis tomato Alternaria animal animal food classification food contamination food safety genetics host pathogen interaction human metabolism metabolome metabolomics microbiology plant procedures secondary metabolism Alternaria Animal Feed Animals Food Contamination Food Safety Host-Pathogen Interactions Humans Metabolome Metabolomics Mycotoxins Plants Secondary Metabolism Patriarca, Andrea Rosana Alternaria species and their associated mycotoxins
topic_facet	Alternaria species Fruits Grains Mycotoxins Taxonomy Vegetables alternariol alternariol monomethyl ether altertoxin mycotoxin perylene tentoxin tenuazonic acid tetramic acid derivative unclassified drug mycotoxin Alternaria apple cereal chemotaxonomy citrus fruit food fungal gene fungal virulence fungus culture fungus identification host housekeeping gene metabolite molecular phylogeny morphological trait nonhuman plant disease sporogenesis tomato Alternaria animal animal food classification food contamination food safety genetics host pathogen interaction human metabolism metabolome metabolomics microbiology plant procedures secondary metabolism Alternaria Animal Feed Animals Food Contamination Food Safety Host-Pathogen Interactions Humans Metabolome Metabolomics Mycotoxins Plants Secondary Metabolism
description	The genus Alternaria includes more than 250 species. The traditional methods for identification of Alternaria species are based on morphological characteristics of the reproductive structures and sporulation patterns under controlled culture conditions. Cladistics analyses of “housekeeping genes” commonly used for other genera, failed to discriminate among the small-spored Alternaria species. The development of molecular methods achieving a better agreement with morphological differences is still needed. The production of secondary metabolites has also been used as a means of classification and identification. Alternaria spp. can produce a wide variety of toxic metabolites. These metabolites belong principally to three different structural groups: (1) the dibenzopyrone derivatives, alternariol (AOH), alternariol monomethyl ether (AME), and altenuene (ALT); (2) the perylene derivative altertoxins (ATX-I, ATX-II, and ATX II); and (3) the tetramic acid derivative, tenuazonic acid (TeA). TeA, AOH, AME, ALT, and ATX-I are the main. Certain species in the genus Alternaria produce host-specific toxins (HSTs) that contribute to their pathogenicity and virulence. Alternaria species are plant pathogens that cause spoilage of agricultural commodities with consequent mycotoxin accumulation and economic losses. Vegetable foods infected by Alternaria rot could introduce high amounts of these toxins to the human diet. More investigations on the toxic potential of these toxins and their hazard for human consumption are needed to make a reliable risk assessment of dietary exposure. © Springer Science+Business Media LLC 2017.
author	Patriarca, Andrea Rosana
author_facet	Patriarca, Andrea Rosana
author_sort	Patriarca, Andrea Rosana
title	Alternaria species and their associated mycotoxins
title_short	Alternaria species and their associated mycotoxins
title_full	Alternaria species and their associated mycotoxins
title_fullStr	Alternaria species and their associated mycotoxins
title_full_unstemmed	Alternaria species and their associated mycotoxins
title_sort	alternaria species and their associated mycotoxins
publishDate	2017
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10643745_v1542_n_p13_Pinto http://hdl.handle.net/20.500.12110/paper_10643745_v1542_n_p13_Pinto
work_keys_str_mv	AT patriarcaandrearosana alternariaspeciesandtheirassociatedmycotoxins
_version_	1768544831413420032

Alternaria species and their associated mycotoxins

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