Cultivar Susceptibility to Olive Knot Disease and Association with Endophytic Microbiota Community

نویسندگان

چکیده

Olive knot disease (OKD) induced by the bacterium Pseudomonas savastanoi pv. seriously affects olive production in Mediterranean basin. Nowadays, only strategies to control are pruning and application of cupric products. An essential strategy enhance protection is represented identification resistant cultivars, which represents a crucial opportunity for future investments breeding. We undertook three-year-long survey at International Germplasm Collection “Villa Zagaria” (Sicily, Italy) on thirty-six Sicilian cultivars that were monitored symptom development. Cultivars with different levels susceptibility divided into five clusters. Moreover, order investigate possible interactions endophytic microbial communities, two contrasting susceptibilities, Zaituna (highly resistant) Giarraffa susceptible), selected an amplicon-based metagenomic analysis. Distinct communities colonized suggesting interaction between resident bacterial community pathogen. Significantly higher richness was detected shoots susceptible cv. Giarraffa, although it had lower diversity. The opposite trend observed fungal communities. Among microbes resulted be enriched important underline presence among genera, Alternaria, Neofusicoccum, Epicoccum, Ascochyta, Elsinoe include many species often described as plant pathogens biocontrol agents. Starting from this basic information, new control, breeding resistance integrated management, can envisaged.

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ژورنال

عنوان ژورنال: Agronomy

سال: 2023

ISSN: ['2156-3276', '0065-4663']

DOI: https://doi.org/10.3390/agronomy13020468