Current microbiologySep 16, 2026

Using Plant Viruses as Tools for Advanced Farming

CRISPR Gene Editing Weekly Brief ↗PubMed ↗DOI ↗

Updated Sep 17, 2026

Abstract

Plant viral vectors may provide a rapid, transgene-free alternative for genetic intervention in crops.

Advanced designs of viral vectors, such as deconstructed genomes and synthetic regulatory circuits, enhance cargo capacity and specificity.
The combination of viral delivery with CRISPR-Cas systems enables new genome editing techniques like virus-induced genome editing (VIGE) and base editing.
Heritable trait modifications can be achieved without tissue culture using these advanced viral vectors.
Key challenges include expanding the host range, ensuring environmental containment, and developing scalable delivery methods.
Emerging synergies with nanobiotechnology could lead to more targeted and efficient applications.

Simplified

Plant viral vectors have evolved from tools for transient gene expression into a versatile platform for precise genetic intervention, offering a rapid, transgene-free alternative to conventional crop transformation. This review critically assesses their engineering for scalable field application, moving beyond foundational techniques like virus-induced gene silencing (VIGS). We highlight how advanced vector design, including deconstructed genomes and synthetic regulatory circuits enhances cargo capacity, specificity, and biosafety. The integration of viral delivery with CRISPR-Cas systems has unlocked virus-induced genome editing (VIGE), base editing, and prime editing, enabling heritable trait modification without tissue culture. However, the transition from proof-of-concept in model plants to robust field technology hinges on overcoming critical bottlenecks: expanding host range through chimeric vectors, ensuring environmental containment, and developing scalable delivery methods such as nano-formulations or adjusted agroinfiltration protocols. We evaluate these delivery routes and emerging synergies with nanobiotechnology for targeted and efficient applications. While challenges in regulation, public perception, and large-scale production persist, the strategic engineering of viral vectors for stability, specificity, and safety positions them as a transformative, next-generation biotechnological input for achieving sustainable crop improvement and protection under changing climatic conditions.

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Using Plant Viruses as Tools for Advanced Farming

Abstract

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