Characterization of Colletotrichum strains associated with olive anthracnose in Sicily

نویسندگان

چکیده

Anthracnose caused by Colletotrichum spp. is the most damaging olive fruit disease in many countries, including Italy. This has been sporadically detected Sicily, but new agronomic practices can increase risk of anthracnose this region. An etiological study focused on local cultivars growing at International Olive Germplasm Collection (IOGC) Villa Zagaria, Enna, Sicily undertaken. During 2018 and 2019, 137 strains were isolated from olives. Colony morphology, conidium characteristics, multilocus sequence analyses aided identification three species: C. acutatum (affecting 70% symptomatic olives), gloeosporioides, cigarro. Three (B13-16, P77, P185), one strain each gloeosporioides (C2.1) cigarro (Perg6B) evaluated for pathogenicity fruits 11 Sicilian cultivars, known their high-quality oil. Differences virulence among to cultivars. The isolates more virulent than those or Cavaliera, Carolea, Calatina, Nocellara del Belice susceptible pathogen, while Biancolilla Etnea tolerant. Cultivar response under field conditions showed that severity fruit-rot incidence positively correlated. first report affecting trees Sicily. Control measures depend accurate characterization agents host cultivar resistance.

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ژورنال

عنوان ژورنال: Phytopathologia Mediterranea

سال: 2022

ISSN: ['0031-9465', '1593-2095']

DOI: https://doi.org/10.36253/phyto-13181