Affiliation:
1. Laboratoire de Génétique Microbienne, Institut National de la Recherche Agronomique, Domaine de Vilvert, 78352 Jouy en Josas, France
Abstract
Relatedness between
Lactococcus lactis
subsp.
cremoris
and
L. lactis
subsp.
lactis
was assessed by Southern hybridization analysis, with cloned chromosomal genes as probes. The results indicate that strains of the two subspecies form two distinct groups and that the DNA sequence divergence between
L. lactis
subsp.
lactis
and
L. lactis
subsp.
cremoris
is estimated to be between 20 and 30%. The previously used phenotypic criteria do not fully discriminate between the groups; therefore, we propose a new classification which is based on DNA homology. In agreement with this revised classification, the
L. lactis
subsp.
lactis
and
L. lactis
subsp.
cremoris
strains from our collection have distinct phage sensitivities.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Reference23 articles.
1. Chapot-Chartier M. P. M. Nardi M. C. Chopin A. Chopin and J. C. Gripon. Submitted for publication.
2. Definition of bacteriophage groups according to their Iytic action on mesophilic lactic streptococci;Chopin M.;Appl. Environ. Microbiol.,1976
3. Chopin M. C. and M. Rousseau. Unpublished data.
4. Delorme C. 1992. Ph.D. thesis. University of Paris VII Paris.
5. Delorme C. S. D. Ehrlich and P. Renault. Histidine biosynthesis genes in Lactococcus lactis subsp. lactis. J. Bacteriol. 174:6571-6579.
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