Peanut stunt virus 2b cistron plays a role in viral local and systemic accumulation and virulence in Nicotiana benthamiana

Peanut stunt virus 2b cistron plays a role in viral local and systemic accumulation and virulence... To analyze the role of the 2b protein (2bP) of Peanut stunt virus (PSV) in the viral infection cycle, we constructed PSV mutants that express either no 2bP or N-terminal-truncated 2bP. The accumulation of wild-type and mutant viruses in tobacco protoplasts indicated that the 2b cistron is not essential for viral replication. Viral accumulation in Nicotiana benthamiana plants suggested that the 2b cistron is responsible for viral accumulation in inoculated and upper leaves and has a role in virulence. The involvement of eight N-terminal amino acids of 2bP in these functions is discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Peanut stunt virus 2b cistron plays a role in viral local and systemic accumulation and virulence in Nicotiana benthamiana

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Publisher
Springer Vienna
Copyright
Copyright © 2008 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-008-0166-y
Publisher site
See Article on Publisher Site

Abstract

To analyze the role of the 2b protein (2bP) of Peanut stunt virus (PSV) in the viral infection cycle, we constructed PSV mutants that express either no 2bP or N-terminal-truncated 2bP. The accumulation of wild-type and mutant viruses in tobacco protoplasts indicated that the 2b cistron is not essential for viral replication. Viral accumulation in Nicotiana benthamiana plants suggested that the 2b cistron is responsible for viral accumulation in inoculated and upper leaves and has a role in virulence. The involvement of eight N-terminal amino acids of 2bP in these functions is discussed.

Journal

Archives of VirologySpringer Journals

Published: Sep 1, 2008

References

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