Characterization of a New Virulent Phage (MLC-A) of Lactobacillus paracasei

From: Journal of Dairy Science | Date: July 1, 2006| Author: Ackermann, H-W; Moineau, S; Quiberoni, A del L; Reinheimer, J A; Capra, M L | Copyright information

ABSTRACT

A new virulent bacteriophage (MLC-A) was recently isolated in Argentina from a probiotic dairy product containing a strain of Lactobacillus paracasei. Observation of the lysate with an electron microscope revealed bacteriophage particles with an icosahedral capsid of 57 ± 2 nm; with a collar and a noncontractile tail of 156 ± 3 nm terminating with a baseplate to which a tail fiber was attached. Therefore, phage MLC-A belongs to the Siphoviridae family. This phage was able to...