Phage Receptor Material in Lactobacillus casei

Publisher Website
Google Scholar
Abstract
In L. casei S-1, D-galactosamine and L-rhamnose comprised a phage receptor for phage J-1. A mixture of D-galactosamine and L-rhamnose effectively inactivated phage J-1, and a J-1-resistant mutant strain, L-casei S-1/J-1, lacked D-galactosamine in its surface component. The phage-inactivating effects of D-galactosamine and L-rhamnose were strongly dependent on the concentration of each substance and on temperature. The receptor for phage J-1 may involve D-galactosamine in the cytoplasmic membrane and L-rhamnose in the wall of the host bacterium L. casei S-1, which lacks teichoic acid in its wall.