Setlow P, Sacks L E
Can J Microbiol. 1983 Sep;29(9):1228-30. doi: 10.1139/m83-189.
Cyclic AMP was not detected (less than 5 X 10(-9) M intracellular concentration) at any stage of growth or sporulation of two strains of Clostridium perfringens grown with or without methylxanthines. Only Bacillus and Lactobacillus, genera belonging to the same phylogenetic cluster, have previously exhibited undetectable levels of cyclic AMP.
在有无甲基黄嘌呤的条件下培养的两株产气荚膜梭菌生长或芽孢形成的任何阶段,均未检测到环磷酸腺苷(细胞内浓度低于5×10⁻⁹M)。只有芽孢杆菌属和乳酸杆菌属,这两个属于同一系统发育簇的属,之前曾表现出无法检测到的环磷酸腺苷水平。