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  • Title: Wall turnover deficiency of Bacillus subtilis Ni15 is due to a decrease in teichoic acid.
    Author: Vitković L.
    Journal: Can J Microbiol; 1987 Jun; 33(6):566-8. PubMed ID: 2887273.
    Abstract:
    Bacillus subtilis Ni15 is deficient in cell wall turnover. The deficiency is removed if the medium contains 0.2 M NaCl, which does not affect growth. The levels of amidase and glucosaminidase, the most likely enzymes involved in turnover, were, in stationary phase Ni15 cells, similar to those in late-exponential phase cells of a standard strain. The Ni15 enzymes were not salt sensitive. However, the Ni15 walls contained 4.7-fold less phosphorus than the walls of the standard strain. Since the phosphorus content of B. subtilis walls reflects the level of teichoic acid, it is proposed that the turnover deficiency of this strain is due to a decrease in wall teichoic acid.
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