Strain | aoxB expression ratio +As(III)/-As(III) | Standard error |
---|
Wild type |
9.406
| 0.630 |
Ha3109 (rpoN) | 0.250 | 0.060 |
Ha483 (aoxR) | 0.111 | 0.024 |
Ha482 (aoxS) | 0.200 | 0.029 |
Ha2646 (dnaJ) | 1.156 | 0.289 |
- Expression ratios of aoxB in H. arsenicoxydans wild-type and mutant strains without As(III) versus an As(III) 8 hours induction (1.33 mM), as measured by quantitative RT-PCR. Expression of each gene was normalized to the expression of the two housekeeping genes HEAR0118 and HEAR2922 coding for a peptide deformylase and a putative RNA methyltransferase, respectively. Standard errors were calculated from the data of two quantitative PCR replicates obtained from two independent biological replicates. Bold text indicates statistically significant induction.