Potter C S, Hubert E G, Montgomerie J Z, Kalmanson G M, Guze L B
J Bacteriol. 1973 Dec;116(3):1343-5. doi: 10.1128/jb.116.3.1343-1345.1973.
An L-form of Serratia marcescens has previously been shown incapable of producing the red pigment, prodigiosin, characteristic of the parent bacteria. Mutants of S. marcesens, unable to form one or the other of the two prodigiosin precursors, 4-methoxy-2,2'-bipyrrole-5-carboxaldehyde or 2-methyl-3-n-amylpyrrole, were used to test the nature of the L-form defect. The L-forms failed to form sufficient amounts of either precursor to be detected by the appropriate mutant, and, when furnished the precursors, failed to couple them to form prodigiosin.
先前已证明粘质沙雷氏菌的L型无法产生母体细菌特有的红色色素灵菌红素。利用无法形成灵菌红素两种前体中的一种或另一种的粘质沙雷氏菌突变体，即4-甲氧基-2,2'-联吡咯-5-甲醛或2-甲基-3-正戊基吡咯，来测试L型缺陷的性质。L型无法形成足够量的任何一种前体以供相应突变体检测，并且在提供前体时，无法将它们偶联形成灵菌红素。
