Abstract
AbstractUsing synthetic biology techniques to engineer secondary metabolic pathways through hairy root transformation is one of the most advanced approaches used in research. In this study, we optimized anex-vitroone-step hairy root transformation of theRUBYsystem in both drug- and hemp-type cannabis, shedding light on its potential applications in secondary metabolite production. Three different strains ofA. rhizogenesincluding (A4, ARqual, and K599) were used. Significant variation in HR induction and transformation efficiency (TE) was observed based onA. rhizogenesstrains and seed types. Drug-type seedlings exhibited the highest hairy root induction, increasing by 58.8% compared to hemp-type seedlings. Also, the A4 strain consistently demonstrated the highest transformation efficiency (75%) irrespective of genotype, while the ARqual strain yielded the lowest one (8.33%). In conclusion, our study is the first to present anex-vitroone-step transformation of both hemp- and drug-type cannabis. In comparison to the in vitro method, our ex-vitro method is simpler, faster, and has a lower risk of contamination, making it an excellent choice for the efficient production of secondary metabolites in cannabis using the CRISPR/Cas system.
Publisher
Cold Spring Harbor Laboratory
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