Zuckier G, Ingenito E, Torriani A
J Bacteriol. 1980 Aug;143(2):934-41. doi: 10.1128/jb.143.2.934-941.1980.
The appearance during anaerobiosis of spontaneous phoT phoB double mutants in a phoT background is described. During both exponential growth and stationary phase, selection against the phoT mutants relative to the wild type was evident. This reduction in viability of phoT mutants was suppressed in phoT phoB double mutants. Sensitivity to anaerobiosis was shown to be correlated with polyphosphate overproduction. A possible pleiotropic function of phoT and phoB is suggested.
描述了在厌氧条件下,以phoT为背景的自发phoT phoB双突变体的出现情况。在指数生长期和稳定期,相对于野生型,对phoT突变体的选择作用都很明显。phoT phoB双突变体中phoT突变体这种活力的降低得到了抑制。结果表明,对厌氧的敏感性与多聚磷酸盐的过量产生有关。文中提出了phoT和phoB可能的多效性功能。