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. 1991 Jan;173(2):921-5.
doi: 10.1128/jb.173.2.921-925.1991.

Transformation of freshwater and marine caulobacters by electroporation

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Transformation of freshwater and marine caulobacters by electroporation

A Gilchrist et al. J Bacteriol. 1991 Jan.

Abstract

We performed plasmid electrotransformation of Caulobacter crescentus strains and obtained up to 3 x 10(8) transformants per micrograms of pKT230. The presence and integrity of the paracrystalline protein surface (S) layer influenced electroporation; caulobacters lacking the S layer were electrotransformed 10 times more efficiently than caulobacters possessing the S layers. A procedure yielding 1,500 transformants per micrograms of pKT230 was developed for a marine caulobacter. Electroporation was used in combination with several genetic techniques, including introduction of ligation mixtures, suicide transposon mutagenesis, gene replacement, and plasmid electrotransfer from Escherichia coli to caulobacters.

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