Imae Y, Strominger M B, Strominger J L
J Bacteriol. 1976 Sep;127(3):1568-70. doi: 10.1128/jb.127.3.1568-1570.1976.
Spore cortex of conditional cortexless mutants of Bacillus sphaericus 9602 was not detectable by electron microscopy unless the medium was supplemented with meso-alpha,epsilon-diaminopimelic acid during sporulation. Other spore structures appeared normal. Spore shape was quite irregular in the absence of meso-alpha,epsilon-diaminopimelic acid.
球形芽孢杆菌9602条件性无皮层突变体的芽孢皮层，除非在芽孢形成过程中培养基添加了内消旋-α,ε-二氨基庚二酸，否则通过电子显微镜无法检测到。其他芽孢结构看起来正常。在没有内消旋-α,ε-二氨基庚二酸的情况下，芽孢形状非常不规则。
