Then R
Zentralbl Bakteriol Orig A. 1977;237(2-3):372-7.
The thymidine content of a number of media now available commercially was determined, using Lactobacillus arabinosus ATCC 8014. The thymidine concentration in most liquid media was so high (greater than 0.01 microng/ml) that, without further treatment, these media could not be used for the testing of sulphonamides, trimethoprim or combinations thereof, more especially if bactericidal action was being investigated. Low and tolerable thymidine amounts were found in some agar media. Considerable variation was observed in the thymidine concentration in the same media produced by different manufacturers, as e.g; in Mueller Hinton Agar, as well as in different batches of one medium from the same manufacturer.
使用阿拉伯糖乳杆菌ATCC 8014测定了目前市场上可买到的多种培养基的胸腺嘧啶核苷含量。大多数液体培养基中的胸腺嘧啶核苷浓度非常高（大于0.01微克/毫升），以至于未经进一步处理，这些培养基不能用于磺胺类药物、甲氧苄啶或它们的组合的测试，更特别的是如果要研究杀菌作用。在一些琼脂培养基中发现了低且可耐受的胸腺嘧啶核苷量。由不同制造商生产的相同培养基中，胸腺嘧啶核苷浓度存在相当大的差异，例如在穆勒-欣顿琼脂中，以及同一制造商生产的同一培养基的不同批次之间。
