Arabidopsis thaliana is a host of the legume nanovirus Faba bean necrotic yellows virus. - Archive ouverte HAL
Article Dans Une Revue Virus Research Année : 2007

Arabidopsis thaliana is a host of the legume nanovirus Faba bean necrotic yellows virus.

Résumé

We report infection of Arabidopsis thaliana with the legume nanovirus Faba bean necrotic yellows virus (FBNYV) by its insect vector Aphis craccivora. Symptoms of FBNYV infection on A. thaliana include stunting and reduced apical dominance, and are rather mild, compared to the severe necrosis and early plant death induced by the virus in the natural host Vicia faba. An inoculation access period of 6h is sufficient to transmit FBNYV to A. thaliana. FBNYV is readily transmitted back from A. thaliana to V. faba, where it induces the characteristic severe disease symptoms. Hence, passage through A. thaliana does not affect FBNYV pathogenicity. FBNYV accumulates to the highest levels in roots and stems, compared to cauline and rosette leaves. In cauline leaves, the kinetics of virus accumulation correlates with the amount of master Rep protein accumulation.

Dates et versions

hal-00175595 , version 1 (28-09-2007)

Identifiants

Citer

Julio C Vega-Arreguín, Bruno Gronenborn, Bertha Cecilia Ramírez. Arabidopsis thaliana is a host of the legume nanovirus Faba bean necrotic yellows virus.. Virus Research, 2007, 128 (1-2), pp.81-7. ⟨10.1016/j.virusres.2007.04.011⟩. ⟨hal-00175595⟩
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