The cowpea mosaic virus M RNA-encoded 48-kilodalton protein is responsible for induction of tubular structures in protoplasts.
AUTOR(ES)
Wellink, J
RESUMO
Tubular structures extending from plasmodesmata in cowpea mosaic virus (CPMV)-infected tissue have been implicated to play an important role in cell-to-cell movement of this virus. Using a cauliflower mosaic virus 35S promoter-based transient expression vector, we show that expression of only the CPMV M RNA-encoded 48-kDa protein (48K protein) in cowpea protoplasts is sufficient to induce these structures. Strikingly, expression of the 48K protein in protoplasts from a number of nonhost plant species, such as barley, Arabidopsis thaliana, and carrot, also resulted in tubular structure formation. Thus, it is not likely that the viral 48K protein, though playing a key role in cell-to-cell movement of CPMV, has a role in determining the host range of CPMV.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=237721Documentos Relacionados
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