alexa Silicon carbide fiber-mediated DNA delivery into plant cells.
Genetics

Genetics

Advancements in Genetic Engineering

Author(s): Kaeppler HF, Gu W, Somers DA, Rines HW, Cockburn AF

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Abstract Silicon carbide fiber-mediated delivery of DNA into intact plant cells was investigated. Black Mexican Sweet (BMS) maize (Zea mays) and tobacco (Nicotiana tabacum) suspension culture cells were vortexed in the presence of liquid medium, plasmid DNA encoding β-glucuronidase (GUS), and silicon carbide fibers. Penetration of BMS cells by the silicon carbide fibers was observed by scanning electron microscopy of vortexed cells. Following fiber and DNA treatment, BMS cells transiently expressed GUS activity at a mean frequency of 139.5 units (one unit = one blue cell or one colony of blue cells) per sample. Treated tobacco cells expressed an average of 373 GUS units per sample. Untreated controls did not exhibit GUS activity. These results indicate that the silicon carbide fibers-vortex procedure can be used to rapidly and inexpensively deliver foreign DNA into intact plant cells for investigations of transient gene expression. This article was published in Plant Cell Rep and referenced in Advancements in Genetic Engineering

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