MacKechnie I, Hanson R S
J Bacteriol. 1968 Feb;95(2):355-9. doi: 10.1128/jb.95.2.355-359.1968.
A chemically defined medium which allowed germination, outgrowth, and subsequent resporulation of Bacillus cereus T spores, without intervening cell division (microcycle sporogenesis), is described. No medium replacement was required. The second-stage spores were heat-stable and had similar germination characteristics and dipicolinic acid content to primary spores. Deoxyribonucleic acid (DNA) replication began soon after germination and there was a doubling in the DNA content of the cells within 2 hr.
本文描述了一种化学成分明确的培养基,该培养基可使蜡样芽孢杆菌T型芽孢萌发、生长并随后再次形成芽孢,且无需中间的细胞分裂过程(微周期孢子形成)。无需更换培养基。第二阶段的芽孢具有热稳定性,其萌发特性和吡啶二羧酸含量与初级芽孢相似。脱氧核糖核酸(DNA)在芽孢萌发后不久开始复制,2小时内细胞内的DNA含量翻倍。