The transcriptional activities of trfAp (a) and trbBp (b) between the bulk alumina and nano-alumina groups were significantly different between each other (trfAp: F = 51018.1, P <0.0001; trbBp: F = 288422, P <0.0001), and at different levels (trfAp: F = 4931.41, P <0.0001; trbBp: F = 28606.1, P <0.0001). When the process of conjugation was induced by bulk alumina, the transcriptional activities of trfAp and trbBp between the different levels were not significantly different, according to pairwise comparisons (P >0.05). When the conjugal process were induced by nano-alumina, the transcriptional activities of trfAp and trbBp between pairwise comparisons of the different levels were statistically significant different (P <0.01).
