Quick and facile transient RNA interference (RNAi) is one of the most valuable plant biotechnologies for analysing plant gene functions. To establish a novel double-strand RNA (dsRNA) delivery system for plants, we developed an ionic complex of synthetic dsRNA with a carrier peptide in which a cell-penetrating peptide is fused with a polycation sequence as a gene carrier. The dsRNA-peptide complex is 100-300 nm in diameter and positively charged. Infiltration of the complex into intact leaf cells of Arabidopsis thaliana successfully induced rapid and efficient down-regulation of exogenous and endogenous genes such as yellow fluorescent protein and chalcone synthase. The present method realizes quick and local gene silencing in specific tissues and/or organs in plants.
CITATION STYLE
Numata, K., Ohtani, M., Yoshizumi, T., Demura, T., & Kodama, Y. (2014). Local gene silencing in plants via synthetic dsRNA and carrier peptide. Plant Biotechnology Journal, 12(8), 1027–1034. https://doi.org/10.1111/pbi.12208
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