The Effects of Metal Compounds on the Phospholipid Metabolism in Bacillus subtilis;

  • Published : 1997.06.01


The synthesis of phospholipid and the composition of fatty acid in B. subtills treated with copper chloride (10 ppm), manganese chloride (100 ppm), and nickel chloride (50 ppm) during the culture were analyzed to compare with the control. The levels of growth, total lipid, phosphatidylethanolamine(PE), phosphatidylcholine(PC), phosphatidylglycerol(PG), and cardiolipin(CL) in B. subtilis treated with copper chloride were decreased predominantly. But, the biosynthesis of phosphatidylinositol(PI) was not affected by the metal compounds. The major fatty acids utilized for the formation of phospholipid were palmitic acid(average 19.00%) and stearic acid(average 9.88%) in the control. In the copper chloride treatment, however, palmitic acid (average 17.35%) and oleic acid(average 15.99%) made use of the major fatty acid during the biosynthesis of phospholipids. It was showed that oleic acid(average 17.87%) and stearic acid (average 13.78%) in thee manganese chloride treatment, and palmitic acid(average 15.00%) and myristic acid(average 14.24%) in the nickel chloride treatment were utilized.