New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria

Alternaria species have often been reported as plant pathogens and are commonly isolated from diseased plant hosts. During an investigation of this genus in Algeria, seven Embellisia-like isolates were collected from Apiaceae. Phylogenetic analysis using sequences at four loci, the internal transcri...

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Main Authors: Nabahat Bessadat, Nelly Bataillé-Simoneau, Justine Colou, Bruno Hamon, Kihal Mabrouk, Philippe Simoneau
Format: Article
Language:English
Published: Pensoft Publishers 2025-02-01
Series:MycoKeys
Online Access:https://mycokeys.pensoft.net/article/138005/download/pdf/
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author Nabahat Bessadat
Nelly Bataillé-Simoneau
Justine Colou
Bruno Hamon
Kihal Mabrouk
Philippe Simoneau
author_facet Nabahat Bessadat
Nelly Bataillé-Simoneau
Justine Colou
Bruno Hamon
Kihal Mabrouk
Philippe Simoneau
author_sort Nabahat Bessadat
collection DOAJ
description Alternaria species have often been reported as plant pathogens and are commonly isolated from diseased plant hosts. During an investigation of this genus in Algeria, seven Embellisia-like isolates were collected from Apiaceae. Phylogenetic analysis using sequences at four loci, the internal transcribed spacer of the rDNA region (ITS), glyceraldehyde-3-phosphate dehydrogenase (gpd), translation elongation factor 1-alpha (tef1), and RNA polymerase second largest subunit (rpb2), revealed that these isolates grouped into three sections, namely Embellisia, Embellisioides, and Eureka. Four isolates had significant differences with their closest species and were determined to be new species, namely Alternaria longiformis and A. radicicola spp. nov. The three other isolates of section Eureka were identified as A. eureka and A. hungarica, the latter species being described as a new record in Algeria. Detailed descriptions of new species are provided based on colony color, aspect, diameter, conidial size, septa, sporulation patterns and compared with other relevant Alternaria species within same sections. All these species were weakly pathogenic on carrot, coriander, and fennel under greenhouse experiments. Apiaceae may constitute a reservoir of Alternaria species that could represent potential pathogens for other plant families.
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issn 1314-4049
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spelling doaj-art-e8c80b659d7c4df7bdf4847174445ce22025-02-06T08:30:47ZengPensoft PublishersMycoKeys1314-40492025-02-0111316919210.3897/mycokeys.113.138005138005New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in AlgeriaNabahat Bessadat0Nelly Bataillé-Simoneau1Justine Colou2Bruno Hamon3Kihal Mabrouk4Philippe Simoneau5University of AngersUniversity of AngersUniversity of AngersUniversity of AngersUniversity Oran 1 Ahmed Ben BellaUniversity of AngersAlternaria species have often been reported as plant pathogens and are commonly isolated from diseased plant hosts. During an investigation of this genus in Algeria, seven Embellisia-like isolates were collected from Apiaceae. Phylogenetic analysis using sequences at four loci, the internal transcribed spacer of the rDNA region (ITS), glyceraldehyde-3-phosphate dehydrogenase (gpd), translation elongation factor 1-alpha (tef1), and RNA polymerase second largest subunit (rpb2), revealed that these isolates grouped into three sections, namely Embellisia, Embellisioides, and Eureka. Four isolates had significant differences with their closest species and were determined to be new species, namely Alternaria longiformis and A. radicicola spp. nov. The three other isolates of section Eureka were identified as A. eureka and A. hungarica, the latter species being described as a new record in Algeria. Detailed descriptions of new species are provided based on colony color, aspect, diameter, conidial size, septa, sporulation patterns and compared with other relevant Alternaria species within same sections. All these species were weakly pathogenic on carrot, coriander, and fennel under greenhouse experiments. Apiaceae may constitute a reservoir of Alternaria species that could represent potential pathogens for other plant families.https://mycokeys.pensoft.net/article/138005/download/pdf/
spellingShingle Nabahat Bessadat
Nelly Bataillé-Simoneau
Justine Colou
Bruno Hamon
Kihal Mabrouk
Philippe Simoneau
New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria
MycoKeys
title New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria
title_full New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria
title_fullStr New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria
title_full_unstemmed New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria
title_short New members of Alternaria (Pleosporales, Pleosporaceae) collected from Apiaceae in Algeria
title_sort new members of alternaria pleosporales pleosporaceae collected from apiaceae in algeria
url https://mycokeys.pensoft.net/article/138005/download/pdf/
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