Cadophora sabaouae sp. nov. and Phaeoacremonium Species Associated with Petri Disease on Grapevine Propagation Material and Young Grapevines in Algeria

Author:

Aigoun-Mouhous Wassila12,Mahamedi Alla Eddine2,León Maela3ORCID,Chaouia Cherifa1,Zitouni Abdelghani2,Barankova Katerina4,Eichmeier Ales4ORCID,Armengol Josep3ORCID,Gramaje David5ORCID,Berraf-Tebbal Akila4

Affiliation:

1. Laboratoire de Biotechnologie des Productions Végétales, Faculté des Sciences Naturelles et de la Vie, Département Biotechnologie, Université de Blida 1, 09000 Blida, Algeria

2. Laboratoire de Biologie des Systèmes Microbiens, Département des Sciences Naturelles, Ecole Normale Supérieure de Kouba, Alger BP 92, Vieux-Kouba, 1600 Alger, Algeria

3. Instituto Agroforestal Mediterráneo, Universitat Politècnica de València, 46022 Valencia, Spain

4. Mendel University in Brno, Faculty of Horticulture, Mendeleum-Institute of Genetics, 69144 Lednice, Czech Republic

5. Instituto de Ciencias de la Vid y del Vino, Consejo Superior de Investigaciones Científicas, Universidad de la Rioja, Gobierno de La Rioja, 26007 Logroño, Spain

Abstract

A field survey conducted on asymptomatic grapevine propagation material from nurseries and symptomatic young grapevines throughout different regions of Algeria yielded a collection of 70 Phaeoacremonium-like isolates and three Cadophora-like isolates. Based on morphology and DNA sequence data of β-tubulin (tub2) and actin, five Phaeoacremonium species were identified including Phaeoacremonium minimum (22 isolates), Phaeoacremonium venezuelense (19 isolates), Phaeoacremonium parasiticum (17 isolates), Phaeoacremonium australiense (8 isolates), and Phaeoacremonium iranianum (4 isolates). The latter two species (P. australiense and P. iranianum) were reported for the first time in Algeria. Multilocus phylogenetic analyses (internal transcribed spacer, tub2, and translation elongation factor 1-α) and morphological features, allowed the description of the three isolates belonging to the genus Cadophora (WAMC34, WAMC117, and WAMC118) as a novel species, named Cadophora sabaouae sp. nov. Pathogenicity tests were conducted on grapevine cuttings cultivar Cardinal. All the identified species were pathogenic on grapevine cuttings.

Funder

Ministerstvo Školství, Mládeže a Tělovýchovy

Technologická Agentura České Republiky

Spanish Government, Ramon y Cajal program

Publisher

Scientific Societies

Subject

Plant Science,Agronomy and Crop Science

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