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Alternaria alternata as endophyte and pathogen

Alternaria alternata is a common species of fungus frequently isolated from plants as both an endophyte and a pathogen. Although the current definition of A. alternata rests on a foundation of morphological, genetic and genomic analyses, doubts persist regarding the scope of A. alternata within the...

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Autor principal: DeMers, Mara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Microbiology Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9558358/
https://www.ncbi.nlm.nih.gov/pubmed/35348451
http://dx.doi.org/10.1099/mic.0.001153
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author DeMers, Mara
author_facet DeMers, Mara
author_sort DeMers, Mara
collection PubMed
description Alternaria alternata is a common species of fungus frequently isolated from plants as both an endophyte and a pathogen. Although the current definition of A. alternata rests on a foundation of morphological, genetic and genomic analyses, doubts persist regarding the scope of A. alternata within the genus due to the varied symbiotic interactions and wide host range observed in these fungi. These doubts may be due in large part to the history of unstable taxonomy in Alternaria, based on limited morphological characters for species delimitation and host specificity associated with toxins encoded by genes carried on conditionally dispensable chromosomes. This review explores the history of Alternaria taxonomy, focusing in particular on the use of nutritional mode and host associations in species delimitation, with the goal of evaluating A. alternata as it currently stands based on taxonomic best practice. Given the recombination detected among isolates of A. alternata, different symbiotic associations in this species should not be considered phylogenetically informative.
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spelling pubmed-95583582022-10-14 Alternaria alternata as endophyte and pathogen DeMers, Mara Microbiology (Reading) Microbial Evolution Alternaria alternata is a common species of fungus frequently isolated from plants as both an endophyte and a pathogen. Although the current definition of A. alternata rests on a foundation of morphological, genetic and genomic analyses, doubts persist regarding the scope of A. alternata within the genus due to the varied symbiotic interactions and wide host range observed in these fungi. These doubts may be due in large part to the history of unstable taxonomy in Alternaria, based on limited morphological characters for species delimitation and host specificity associated with toxins encoded by genes carried on conditionally dispensable chromosomes. This review explores the history of Alternaria taxonomy, focusing in particular on the use of nutritional mode and host associations in species delimitation, with the goal of evaluating A. alternata as it currently stands based on taxonomic best practice. Given the recombination detected among isolates of A. alternata, different symbiotic associations in this species should not be considered phylogenetically informative. Microbiology Society 2022-03-29 /pmc/articles/PMC9558358/ /pubmed/35348451 http://dx.doi.org/10.1099/mic.0.001153 Text en © 2022 The Authors https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License. This article was made open access via a Publish and Read agreement between the Microbiology Society and the corresponding author’s institution.
spellingShingle Microbial Evolution
DeMers, Mara
Alternaria alternata as endophyte and pathogen
title Alternaria alternata as endophyte and pathogen
title_full Alternaria alternata as endophyte and pathogen
title_fullStr Alternaria alternata as endophyte and pathogen
title_full_unstemmed Alternaria alternata as endophyte and pathogen
title_short Alternaria alternata as endophyte and pathogen
title_sort alternaria alternata as endophyte and pathogen
topic Microbial Evolution
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9558358/
https://www.ncbi.nlm.nih.gov/pubmed/35348451
http://dx.doi.org/10.1099/mic.0.001153
work_keys_str_mv AT demersmara alternariaalternataasendophyteandpathogen