Abstract
Intact yeast cell transformation is easily achieved by gene electrotransfer (GET). The procedure is fast and efficient in terms of transformants/μg DNA. Yeast cells in exponential growth phase are washed, treated for a short period with dithiothreitol (DTT) and then mixed with the plasmid DNA in a buffer with a low conductivity. A single well defined electric pulsed is delivered. After a 1h incubation in the growth medium without selection, transformants are obtained on a selective plate medium. After a short description of the present knowledge on the events affecting the yeast cell as a consequence of the pulsed electric field, a step-by-step protocol is reported for Saccharomyces cerevisiae.
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