Seasonality of interactions between a plant virus and its host during persistent infection in a natural environment.

ABSTRACT: Persistent infection, wherein a pathogen is continually present in a host individual, is widespread in virus-host systems. However, little is known regarding how seasonal environments alter virus-host interaction during such metastability. We observed a lineage-to-lineage infection of the host plant Arabidopsis halleri with Turnip mosaic virus for 3 years without severe damage. Virus dynamics and virus-host interactions within hosts were highly season dependent. Virus accumulation in the newly formed leaves was temperature dependent and was suppressed during winter. Transcriptome analyses suggested that distinct defence mechanisms, i.e. salicylic acid (SA)-dependent resistance and RNA silencing, were predominant during spring and autumn, respectively. Transcriptomic difference between infe

SUBMITTER: Honjo MN 

PROVIDER: S-EPMC6976672 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature