Viperin-like proteins interfere with RNA viruses in plants

Area of Science:

• Agricultural Science
• Molecular Biology
• Plant Pathology

Background:

• Plant viruses significantly impact crop yield and quality, necessitating advanced antiviral strategies.
• Virus inhibitory protein endoplasmic reticulum-associated interferon-inducible (Viperin) proteins are known for their conserved antiviral functions.
• Developing novel methods to combat plant viral diseases is crucial for global food security.

Purpose of the Study:

• To identify and evaluate Viperin and Viperin-like proteins for their ability to inhibit RNA viruses in plants.
• To explore the potential of these proteins as a new tool in plant biotechnology and agriculture for viral disease resistance.

Main Methods:

• Identification of Viperin and Viperin-like proteins across multiple species.
• Transient and stable overexpression of identified proteins in *Nicotiana benthamiana*.
• Assessing the interference efficacy against specific RNA viruses: tobacco mosaic virus (TMV), turnip mosaic virus (TuMV), and potato virus X (PVX).

Main Results:

• Viperin and Viperin-like proteins demonstrated varying levels of interference against TMV, TuMV, and PVX in *N. benthamiana*.
• The study successfully identified functional Viperin proteins with antiviral activity *in planta*.
• Overexpression of these proteins provides a basis for engineering broad-spectrum resistance against plant viruses.

Conclusions:

• Viperin proteins represent a promising novel approach for developing plant antiviral strategies.
• Harnessing Viperin proteins offers a new avenue for enhancing crop protection against viral pathogens.
• This research opens possibilities for engineering resistant crop varieties through plant biotechnology.