| Literature DB >> 107388 |
Abstract
A highly efficient method for transformation of Bacillus subtilis by plasmid DNA is reported. The procedure, which involves polyethylene glycol-induced DNA uptake by protoplasts and subsequent regeneration of the bacterial cell wall, yields up to 80% transformants with an efficiency of 4 x 10(7) transformants per microgram of supercoiled DNA. Plasmids constructed by in vitro ligation or endonuclease-generated fragments of linear plasmid DNA can also transform PEG-treated protoplasts, but at a lower frequency.Entities:
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Year: 1979 PMID: 107388 DOI: 10.1007/bf00267940
Source DB: PubMed Journal: Mol Gen Genet ISSN: 0026-8925