Pest Management in Horticultural Ecosystems
  • Year: 2015
  • Volume: 21
  • Issue: 2

Cytosolic vibrations initiate the assembly of capsid and genetic material of tobacco mosaic virus — A theoretical perspective

  • Author:
  • Tejas Thondehaalmutt1, Vivek Kempraj2,
  • Total Page Count: 3
  • Page Number: 233 to 235

1Department of Biological Sciences, Jnanabharathi Campus, Bengaluru University, Bengaluru, Karnataka-560 056, India

2Division of Entomology and Nematology, ICAR-Indian Institute of Horticultural Research, Hesserghatta, Bengaluru, Karnataka-560 089, India

*Email: vivek.kempraj@gmail.com

Online published on 15 May, 2017.

Abstract

The tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus that infects a wide range of horticultural crops. TMV is extensively studied and most of its molecular working has been deduced. However, not much is known about how the capsids and the genetic material self-assemble to form the virus. In this study, we give a theoretical perspective and proofs that cytosolic vibrations are involved in the assembly of the TMV. During the replication of TMV, a. RNA (negative-sense RNA) is synthesized using the genomic +RNA (positive-sense RNA) as a template, followed by the synthesis of +RNA using. RNA as a template. This replication process gives raise to electrostatic repulsion between the RNA.s. The negative charge of a RNA molecule works against its folding, whereas, positive ions promote folding by reducing the repulsion between the RNA.s phosphates thus stabilizing the viral RNAs. Stabilization of the viral RNAs by ionic interactions releases energy that causescytosolic vibrations, thus initiating the assembly of the virus. A detailed theoretical perspective is elaborated.

Keywords

cytosolic vibration, tobacco mosaic virus