Association of Rahnella victoriana, Enterobacter hormaechei subsp. hoffmannii and Citrobacter braakii with walnut decline.

ABSTRACT: Persian walnut (Juglans regia) has a considerable economic importance worldwide. However, the vigor and vitality of walnut trees were heavily affected by bark canker during the last few years. Irregular longitudinal cankers in the outer bark, stem tissue necrosis, and bleeding with black-colored exudates walnut trees were observed in Kermanshah, Hamedan, Markazi, Alborz, Isfahan, Qom, Semnan, and Razavi Khorasan provinces in western, central and eastern Iran during 2018 and 2019. A total of 150 symptomatic samples were collected from affected walnut trees in order to identify bacteria associated with walnut decline. Two-hundred sixty strains with a metallic green sheen were isolated on EMB-agar medium. The pathogenicity of all strains was proved by inoculating a suspension of the bacterial

SUBMITTER: Hajialigol M 

PROVIDER: S-EPMC10338530 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature