Larach, A.; Vega-Celedón, P.; Salgado, E.; Salinas, A.; Riquelme, N.; Castillo-Novales, D.; Sanhueza, P.; Seeger, M.; Besoain, X. Higher Virulence of Diplodia seriata Isolates on Vines of cv. Cabernet Sauvignon Associated with 10-Year-Old Wood Compared to Young Tissue. Plants2023, 12, 2984.
Larach, A.; Vega-Celedón, P.; Salgado, E.; Salinas, A.; Riquelme, N.; Castillo-Novales, D.; Sanhueza, P.; Seeger, M.; Besoain, X. Higher Virulence of Diplodia seriata Isolates on Vines of cv. Cabernet Sauvignon Associated with 10-Year-Old Wood Compared to Young Tissue. Plants 2023, 12, 2984.
Larach, A.; Vega-Celedón, P.; Salgado, E.; Salinas, A.; Riquelme, N.; Castillo-Novales, D.; Sanhueza, P.; Seeger, M.; Besoain, X. Higher Virulence of Diplodia seriata Isolates on Vines of cv. Cabernet Sauvignon Associated with 10-Year-Old Wood Compared to Young Tissue. Plants2023, 12, 2984.
Larach, A.; Vega-Celedón, P.; Salgado, E.; Salinas, A.; Riquelme, N.; Castillo-Novales, D.; Sanhueza, P.; Seeger, M.; Besoain, X. Higher Virulence of Diplodia seriata Isolates on Vines of cv. Cabernet Sauvignon Associated with 10-Year-Old Wood Compared to Young Tissue. Plants 2023, 12, 2984.
Abstract
In vineyards, Botryosphaeria dieback (BD) occurs in young and old plants. In the field, the prevalence and severity of the disease increase proportionally with the age of the vineyards. Among the pathogens that cause (BD), Diplodia seriata is the most prevalent species in Chile and other countries with a Mediterranean climate. To date, no information is available on the sus-ceptibility of adult wood to infection by this pathogen since most of the pathogenicity tests have been carried out on 1- or 2-year-old shoots or detached canes. Therefore, a pathogenicity test was carried out on plants under field conditions, with inoculations in plants, on one-year-old shoots, and 2- and 10-year-old wood in grapevine cv. Cabernet Sauvignon. A pathogenicity test was carried out with two isolates of D. seriata selected in an assay in detached canes that were 2-year-old. The results on plants showed that D. seriata was significantly more aggressive on 10-year-old than on one- or two-year-old tissue. These results were compared with the lesions ob-tained from two-year-old canes. The results of this work are consistent with the damage ob-served in the field, highlight the importance of identifying each pathogenic species that causes (BD) and contribute to the knowledge of the epidemiology of this disease in Mediterranean cli-mates.
Biology and Life Sciences, Ecology, Evolution, Behavior and Systematics
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