sp. nov., a Gram-Positive, Spore-Forming Rod Isolated from a Pharmaceutical Facility Production Environment and Added to the MALDI Biotyper Database.

A Gram-positive, aerobic, rod-shaped and spore-forming bacterium strain designation, B190/17, was isolated from an air monitoring sample of a Brazilian immunobiological production facility in 2017. The strain was not identifiable by biochemical methodology VITEK 2 or by MALDI-TOF MS with VITEK MS RUO and MALDI Biotyper. The 16S rRNA gene sequencing results showed 98.51% similarity with FJAT 27215, 98.28% with '' CX 253, 97.96% with MTCC 1458, 97.63% with FJAT 46582 and 97.21% with SGZ8. Biochemical data showed that the strain was alanine arylamidase-, Ala-Phe-Pro arylamidase-, ELLMAN (cysteine residues)-, leucine arylamidase-, phenyalanine arylamidase- and tyrosine arylamidase-positive. The genomic DNA G+C% content of B190/17 was 41.6 mol%. The phylogenetic, genomic taxonomy and biochemical tests suggested that B190/17 represents a novel species and should be classified as the type strain of a novel species. The name sp. nov. was proposed. After characterization, B190/17 was added to the MALDI Biotyper database as sp. nov.