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Abstract
SUMMARY: Various Mycoplasma strains were found to differ in their sensitivity to osmotic lysis. Three strains of the saprophytic Mycoplasma laidlawii and a strain of the parasitic M. bovigenitalium were readily lysed in media of low tonicity. Strains of the parasitic M. mycoides var. mycoides, M. mycoides var. capri, M. gallisepticum and M. neurolyticum were to a great extent resistant to osmotic lysis. The sensitivity of M. laidlawii and M. bovigenitalium to osmotic lysis markedly decreased with ageing of the organisms. M. laidlawii was more sensitive to lysis when grown in cholesterol-free media.
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© Journal of General Microbiology 1963