Correction: Differentiation of Bacillus pumilus and Bacillus safensis Using MALDI-TOF-MS

Abstract

Affiliation 4 and affiliation 5 are incorrectly switched. The affiliation for João Lopes should be: Departamento de Tecnologia Farmacêutica, Faculdade Farmácia, Universidade de Lisboa, Lisboa, Portugal. The affiliation for Manuela E. Pintado should be: CBQF, Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal. The images for Figures 1 and 2 are incorrectly switched. The image that appears as Figure 1 should be Figure 2, and the image that appears as Figure 2 should be Figure 1. The figure legends appear in the correct order. Please view the correct images for Figure 1 and Figure 2 here. 10.1371/journal.pone.0110127.g001 Figure 1 Average mass spectra obtained by MALDI-TOF-MS analysis of B. pumilus and B. safensis isolates. (a) B. pumilus (5 spectra) and (b) B. safensis (22 spectra) in the ion range atm/z 2000 to 12000. Spectra were obtained by averaging the respective experimental ion signals from all isolates. 10.1371/journal.pone.0110127.g002 Figure 2 Score plot obtained by PLSDA regression model and the corresponding dendrogram. Score plot of the PLSDA regression model (a) and respective dendrogram (b), ofB. pumilus and B. safensis isolates. Legend: • B. pumilus isolates and ▾ B. safensis isolates. Unfilled symbols correspond to the type strains of both species.