The tobamovirus Turnip Vein Clearing Virus 30-kilodalton movement protein localizes to novel nuclear filaments to enhance virus infection.

ABSTRACT: Plant viruses overcome the barrier of the plant cell wall by encoding cell-to-cell movement proteins (MPs), which direct newly replicated viral genomes to, and across, the wall. The paradigm for how a single MP regulates and coordinates these activities is the Tobacco mosaic virus (TMV) 30-kDa protein (MP(TMV)). Detailed studies demonstrate that TMV multiplies exclusively in the cytoplasm and have documented associations of MP(TMV) with endoplasmic reticulum (ER) membrane, microtubules, and plasmodesmata throughout the course of infection. As TMV poorly infects Arabidopsis thaliana, Turnip vein clearing virus (TVCV) is the tobamovirus of choice for studies in this model plant. A key problem, which has contributed to confusion in the field, is the unproven assumption that the TVCV and TMV l

SUBMITTER: Levy A 

PROVIDER: S-EPMC3648121 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature