Programmable nanocarriers for precision plant engineering: converging nanotechnology, CRISPR, and next-generation...

Area of Science:

• Plant Science
• Nanotechnology
• Genetics

Background:

• Conventional breeding and transgenic methods face limitations in efficiency, gene delivery, and transgene integration, especially in elite crop varieties.
• Nanotechnology offers innovative solutions for plant genetic improvement, enabling precise and efficient modifications.
• The development of nanocarriers facilitates targeted delivery of genetic material, bypassing traditional challenges.

Purpose of the Study:

• To review advancements in nanocarrier design for plant genome engineering.
• To discuss the application of nanoparticles in genome editing, RNA interference, and organelle modification.
• To highlight transgene-free approaches and their benefits for public acceptance and regulatory ease.

Main Methods:

• Summarizes progress in designing diverse nanocarriers (lipid, polymeric, silica, carbon-based, layered double hydroxides, DNA-based).
• Analyzes the role of nanocarrier physicochemical properties in plant cellular uptake, cargo stability, and targeted delivery.
• Discusses nanoparticle applications in CRISPR/Cas genome editing, RNA interference, and organelle targeting.

Main Results:

• Nanocarriers demonstrate potential for targeted and transgene-free delivery of genetic material (CRISPR/Cas RNPs, DNA, RNA) into plant cells.
• Nanoparticle-mediated delivery minimizes genome interference and offers efficient genetic transformation.
• Transgene-free approaches mitigate somaclonal variation and address regulatory concerns.

Conclusions:

• Nanocarrier-mediated delivery is a promising strategy for advancing plant genome engineering and precision breeding.
• Integration with speed breeding and meristem transformation can accelerate trait stacking and validation.
• Challenges in nanotoxicity, scalability, field translation, and public perception require further investigation for widespread adoption.