Morphological and physiological study of autolytic-defective Streptococcus faecium strains.
AUTOR(ES)
Shungu, D L
RESUMO
Three autolytic-defective mutants of Streptococcus faecium (S. faecalis ATCC 9790) were isolated. All three autolytic-defective mutants exhibited the following properties relative to the parental strain: (i) slower growth rates, especially in chemically defined medium; (ii) decreased rates of cellular autolysis and increased survival after exposure to antibiotics which block cell wall biosynthesis; (iii) decreased rates of cellular autolysis when treated with detergents, suspended in autolysis buffers, or grown in medium lacking essential cell wall precursors; (iv) a reduction in the total level of cellular autolytic enzyme (active plus latent forms of the enzyme); (v) an increased ratio of latent to active forms of autolysin; and (vi) increased levels of both cellular lipoteichoic acid and lipids.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=218217Documentos Relacionados
- Some Properties of Two Autolytic-Defective Mutants of Streptococcus faecalis ATCC 9790
- Lipids and lipoteichoic acid of autolysis-defective Streptococcus faecium strains.
- Autolytic Defective Mutant of Streptococcus faecalis
- Autolytic defective mutant of Streptococcus faecalis.
- Cellular autolytic activity in synchronized populations of Streptococcus faecium.