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July 1, 1996FEMS Microbiology Letters

Molecular characterization of Lactobacillus casei strains

Miguel Ángel Martín Ferrero

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Abstract

Three different molecular techniques were used to characterize bacterial strains isolated from dairy products and phenotypically classified as Lactobacillus casei. Some strains were taxonomically identified as Lb. casei and Lb. paracasei using 23S rRNA-targeted probes specific for Lb. casei and Lb. paracasei. Chromosomal DNA was analyzed by pulsed-field gel electrophoresis. Lb. paracasei strains had a variable number of SfiI fragments harboring rRNA genes, while Lb. casei strains showed more homogeneous patterns. The chromosome size of Lb. paracasei ATCC 334 was evaluated to be 2.17 Mb.

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Miguel Ángel Martín Ferrero (1996) studied this question.

synapsesocial.com/papers/6aaca068f75eed9d903a61e1 https://doi.org/10.1016/0378-1097(96)00183-8

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