Rapid Degradation of Hfq-Free RyhB in Yersinia pestis by PNPase Independent of Putative Ribonucleolytic Complexes

Figure 5

Effects of various RNases or ancillary RNA-modifying enzymes on RyhB stability in Hfq-lacking Y. pestis. Various mutants grown to exponential phase were treated with 250 μg/mL of rifampicin. Culture samples were collected at 0, 5, 10, 20, 40, and 60 min and were subject to RNA extraction and Northern blotting, respectively.