Porter R D, Guild W R
J Bacteriol. 1969 Mar;97(3):1033-5. doi: 10.1128/jb.97.3.1033-1035.1969.
Analysis of frequencies of single and random multiple transformations in Diplococcus pneumoniae showed that there are at least two transformable units per cell of the total population in highly competent cultures. If 100% of the cells are competent in these cases, the units may be interpreted as the strands of one duplex deoxyribonucleic acid recipient chromosome. The theory is developed to allow for extension to more complex situations.
对肺炎双球菌中单次和随机多次转化频率的分析表明,在高效感受态培养物中,总体细胞中每个细胞至少有两个可转化单位。如果在这些情况下100%的细胞具有感受态,这些单位可解释为一条双链脱氧核糖核酸受体染色体的链。该理论得到了发展,以便能够扩展到更复杂的情况。