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携带噬菌体CP - 51 DNA的蜡样芽孢杆菌孢子的生长。I. 噬菌体发育的起始

Outgrowth of Bacillus cereus spores harboring bacteriophage CP-51 DNA. I. Initiation of bacteriophage development.

作者信息

Cohen A, Ben-Ze'ev H, Yashouv J

出版信息

J Virol. 1973 May;11(5):648-54. doi: 10.1128/JVI.11.5.648-654.1973.

Abstract

Time of initiation of bacteriophage CP-51 RNA synthesis, inhibition of host DNA synthesis, initiation of CP-51 DNA synthesis, and release of phage was determined in infected Bacillus cereus cells and outgrowing spores harboring phage DNA. The development of phage in outgrowing spores is initiated 45 min after induction of spore germination and then proceeds at a rate similar to that observed in infected cells. Although spore RNA synthesis is inhibited by the presence of chloramphenicol or puromycin during germination, these antibiotics do not inhibit initiation of phage DNA transcription in outgrowing spores.

摘要

在感染了噬菌体CP - 51的蜡样芽孢杆菌细胞以及携带噬菌体DNA的萌发孢子中,测定了噬菌体CP - 51 RNA合成的起始时间、宿主DNA合成的抑制情况、CP - 51 DNA合成的起始以及噬菌体的释放。在孢子萌发诱导45分钟后,噬菌体在萌发孢子中的发育开始,然后以与在感染细胞中观察到的速率相似的速度进行。尽管在萌发过程中氯霉素或嘌呤霉素的存在会抑制孢子RNA合成,但这些抗生素并不抑制萌发孢子中噬菌体DNA转录的起始。

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