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  • Title: Phospholipid metabolism in the absence of net phospholipid synthesis in a glycerol-requiring mutant of Bacillus subtilis.
    Author: Lillich TT, White DC.
    Journal: J Bacteriol; 1971 Sep; 107(3):790-7. PubMed ID: 4999416.
    Abstract:
    A glycerol-requiring auxotroph of Bacillus subtilis showed no net synthesis of phospholipid when deprived of glycerol. Although there was no net synthesis of phospholipid, we found that: (i) fatty acids and (32)P were slowly incorporated into phospholipid; (ii) in pulse-chase experiments, both (32)P and (14)C in the glycerol portion of the phospholipids were lost from phosphatidlyglycerol (PG) and lysylphosphatidylglycerol and accumulated in cardiolipin (CL); (iii) the proportions of the phospholipids in the membrane changed with a loss of PG and an accumulation of CL. The addition of glycerol to the glycerol-deprived cells resulted in a rapid incorporation of glycerol and restoration to the predeprivation metabolism and PG to CL ratio.
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