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Adhesion of Lactobacillus acidophilus to avian intestinal epithelial cells mediated by the crystalline bacterial cell surface layer (S‐layer)
Author(s) -
Schneitz C.,
Nuotio L.,
Lounatma K.
Publication year - 1993
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1993.tb03028.x
Subject(s) - lactobacillus acidophilus , layer (electronics) , adhesion , s layer , chemistry , lactobacillus , microbiology and biotechnology , cell , epithelium , bacteria , biology , probiotic , biochemistry , genetics , organic chemistry , gene , fermentation
Lactobacillus acidophilus was isolated from washed and homogenized walls of the crop and caecum of an adult fowl. A strain that adhered well in the Fuller adhesion test was subcultured until colonies on Lactobacillus Selective agar changed from rough to smooth. This coincided with a change from aggregate to planktonic growth in liquid medium and a marked loss of ability to adhere. The ultrastructure of cells from both types of culture was studied by electron microscopy. An S‐layer formed the outermost part of the cell wall in the strongly‐adherent strain, whereas this layer was covered with polymerized material or was absent in strains that lacked the ability to adhere, or those with reduced adherence.