Fatty acid composition of membranes of L-forms ofStreptococcus faecalis andProteus mirabilis cultured at different osmolalities |
| |
| Authors: | John Z Montgomerie George M Kalmanson Lucien B Guze |
| |
| Institution: | (1) Department of Medicine, Rancho Los Amigos Hospital, 90242 Downey, California, USA;(2) Department of Medicine, University of Southern California School of Medicine, 90033 Los Angeles, California, USA;(3) Research and Medical Services, Veterans Administration, Wadsworth Hospital Center, 90073 Los Angeles, California, USA;(4) Department of Medicine, University of California at Los Angeles School of Medicine, 90024 Los Angeles, California, USA |
| |
| Abstract: | The fatty acid composition of membranes of L-forms ofStreptococcus faecalis andProteus mirabilis cultured at different osmolalities and in different osmotic stabilizers was examined.S. faecalis L-forms cultured with sucrose in the medium showed a decrease in the unsaturated fatty acid C18 1 and an increase in the C18 fatty acid and C19 cyclopropane fatty acid. Fatty acid composition ofS. faecalis L-forms cultured in medium containing 1.8% NaCl was similar to the fatty acid composition of L-forms cultured in brain-heart infusion broth (BHI) without osmotic stabilizer and was between the composition of fatty acids of L-forms in BHI with sucrose and that in BHI without 0.5 M sucrose. InProteus mirabilis L-forms, there were differences between L-forms cultured with and without sucrose, but these differences were not comparable to the changes observed inS. faecalis L-forms.P. mirabilis L-forms cultured with and without NaCl in the medium had similar fatty acid compositions. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
