RETRACTION
Volume 195, no. 16, p. 3514–3523, 2013. A number of problems related to images published in this paper have been brought to our attention. Figure 1D contains duplicated images in lanes S and LE, and Fig. 4D and 6B contain images previously published in articles in this journal and in Microbiology and Microbial Pathogenesis, i.e., the following:
C. G. Ramos, S. A. Sousa, A. M. Grilo, J. R. Feliciano, and J. H. Leitão, J. Bacteriol. 193:1515–1526, 2011. doi:10.1128/JB.01374-11.
S. A. Sousa, C. G. Ramos, L. M. Moreira, and J. H. Leitão, Microbiology 156:896–908, 2010. doi:10.1099/mic.0.035139-0.
C. G. Ramos, S. A. Sousa, A. M. Grilo, L. Eberl, and J. H. Leitão, Microb. Pathog. 48:168–177, 2010. doi:10.1016/j.micpath.2010.02.006.
Therefore, we retract the paper. We deeply regret this situation and apologize for any inconvenience to the editors and readers of Journal of Bacteriology, Microbial Pathogenesis, and Microbiology.