Transmission of potato spindle tuber viroid between Phytophthora infestans and host plants.

ABSTRACT: Potato spindle tuber viroid (PSTVd) is a naked, circular, single-stranded RNA (356-363 nucleotides in length) which lacks any protein-coding sequences. It is an economically important pathogen and is classified as a high-risk plant quarantine disease. Moreover, it is known that PSTVd is mechanically transmitted by vegetative plant propagation through infected pollen, and by aphids. The aim of this study is to determine the possibility of viroid transmission by potato pathogen Phytophthora infestans (Mont.) de Bary. PSTVd-infected (strain VP87) potato cultivars Gala, Colomba, and Riviera were inoculated with P. infestans isolate PiVZR18, and in 7 days, after the appearance of symptoms, re-isolation of P. infestans on rye agar was conducted. RT-PCR diagnostics of PSTVd in a mixture of myceli

SUBMITTER: Afanasenko OS 

PROVIDER: S-EPMC9167824 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature