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

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 -like isolates and three -like isolates. Based on morphology and DNA sequence data of β-tubulin ( ) and actin, five species were identified including (22 isolates), (19 isolates), (17 isolates), (8 isolates), and (4 isolates). The latter two species ( and ) were reported for the first time in Algeria. Multilocus phylogenetic analyses (internal transcribed spacer, , and translation elongation factor 1-α) and morphological features, allowed the description of the three isolates belonging to the genus (WAMC34, WAMC117, and WAMC118) as a novel species, named sp. nov. Pathogenicity tests were conducted on grapevine cuttings cultivar Cardinal. All the identified species were pathogenic on grapevine cuttings.