Mennucci L, Rojas S, Camargo E P
Biochim Biophys Acta. 1975 Oct 9;404(2):249-56. doi: 10.1016/0304-4165(75)90331-1.
The activity of ornithine decarboxylase (EC 4.1.1.17, L-ornithine carboxy-lyase) was determined during the life cycle of Blastocladiella emersonii. The specific activity of the enzyme was found to be low in the zoospores, to rise 20-fold during germination and early growth, to fall during growth and to rise again during sporulation. This rise in enzyme activity was shown to be dependent on protein synthesis. Putrescine levels, on a per mg of protein basis, paralleled the fluctuation found in ornithine decarboxylase activity. Putrescine and spermidine were the only polyamines found in extracts of B. emersonii.
在艾美球虫的生命周期中测定了鸟氨酸脱羧酶（EC 4.1.1.17，L-鸟氨酸羧基裂解酶）的活性。发现该酶的比活性在游动孢子中较低，在萌发和早期生长期间升高20倍，在生长期间下降，并在孢子形成期间再次升高。酶活性的这种升高被证明依赖于蛋白质合成。以每毫克蛋白质计，腐胺水平与鸟氨酸脱羧酶活性的波动情况平行。腐胺和亚精胺是在艾美球虫提取物中发现的仅有的多胺。
