Avdienko I D, Shchipkova N I, Chemleva N G, Khokhlova T A, Pekhov A P
Zh Mikrobiol Epidemiol Immunobiol. 1982 Aug(8):59-63.
Genetic transfer factors pAP38, pAP39 and pAP41 can be transferred to E. coli, both typed and untypecd, as well as to Erwinia and Hafnia strains, with different frequency (10(-2) to 10(-8)). The transconjugates thus obtained possess donor activity and can transfer the factors they have received to recipient E. coli strains. After transfer these factors are stably maintained in a new host for at least 10 days. Under the action of ethidium bromide or elevated temperature the elimination of the transfer factors from host bacteria is observed. The studied transfer factors pAP38, pAP39 and pAP41 (F-like factors) are plasmids fi+.
遗传转移因子pAP38、pAP39和pAP41能够以不同频率（10^(-2)至10^(-8)）转移至大肠杆菌（包括分型的和未分型的）以及欧文氏菌属和哈夫尼亚菌属菌株。由此获得的转接合子具有供体活性，并且能够将它们所获得的因子转移至受体大肠杆菌菌株。转移后，这些因子能在新宿主中稳定维持至少10天。在溴化乙锭作用或高温条件下，可观察到宿主细菌中转移因子的消除。所研究的转移因子pAP38、pAP39和pAP41（F样因子）是fi+质粒。
