Colonization of Wild Blackberry Plants in California by Fusarium oxysporum f. sp. mori
| Autor: | Dean C. Watson, Thomas R. Gordon, A. M. Pastrana |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine education.field_of_study biology fungi Population food and beverages Plant Science Rubus ursinus biology.organism_classification 01 natural sciences Fusarium wilt 03 medical and health sciences Horticulture 030104 developmental biology Fusarium oxysporum Colonization Cultivar Rubus armeniacus Rubus education Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Plant Disease. 105:264-267 |
| ISSN: | 1943-7692 0191-2917 |
| DOI: | 10.1094/pdis-06-20-1297-re |
| Popis: | Fusarium oxysporum f. sp. mori, the causal agent of Fusarium wilt of blackberry, was first reported in California and Mexico in 2016. A limited survey of the population revealed this pathogen to be one of the most diverse formae speciales of F. oxysporum. We explored the possibility that strains of F. oxysporum pathogenic to commercial blackberry could also be recovered from wild blackberry (Rubus spp.) in California. For this purpose, wild Rubus species in blackberry nurseries, fruit production fields, and nearby areas were collected between 2017 and 2019. Thirty-four isolates of F. oxysporum were recovered from asymptomatic Rubus armeniacus and Rubus ursinus plants. Based on sequence of the translation elongation factor 1-α, somatic compatibility, and pathogenicity to blackberry, 16 isolates were confirmed as F. oxysporum f. sp. mori. These isolates were associated with three somatic compatibility groups, one of which was first identified in this study. Recovery of the pathogen confirmed that wild blackberry plants can act as a reservoir of inoculum of F. oxysporum f. sp. mori and that it can move from wild blackberry plants to commercial cultivars or vice versa. |
| Databáze: | OpenAIRE |
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