A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae Author Zheng, Jinshui Author Wittouck, Stijn Author Salvetti, Elisa Author Franz, Charles M. A. P. Author Harris, Hugh M. B. Author Mattarelli, Paola Author O’Toole, Paul W. Author Pot, Bruno Author Vandamme, Peter Author Walter, Jens Author Watanabe, Koichi Author Wuyts, Sander Author Felis, Giovanna E. Author Gänzle, Michael G. Author Lebeer, Sarah text International Journal of Systematic and Evolutionary Microbiology 2020 2020-04-01 70 4 2782 2858 http://dx.doi.org/10.1099/ijsem.0.004107 journal article 10.1099/ijsem.0.004107 1466-5034 DESCRIPTION OF LACTICASEIBACILLUS CASEI COMB. NOV. Lacticaseibacillus casei (ca’se.i. L. gen. n. casei of cheese). Basonym: Lactobacillus casei ( Orla Jensen 1916, Hansen and Lessel 1971, 71 (Approved Lists) ( Streptobacterium casei Orla-Jensen 1919, 166). The species includes strains previously classified as Lactobacillus zeae [ 155 ]. Original characteristics of L. casei strains are provided by [ 2 , 156 , 157 ]. L. casei is differentiated from most other lactobacilli by catalase activity [ 47 ]. The genome size of the type strain is 2.83 Mbp. The mol% G+C content of DNA is 46.5. Isolates were obtained from diverse sources including chinese traditional pickle, infant faeces, corn liquor, oat silage, commercial dietary supplements, sputum, nasopharynx [ 47 ]. Information on the lifestyle of L. casei is counded by the unclear taxonomy over the past decades; most genomes of designated as L. casei in the NCBI database should be classified as L. paracasei instead [ 10 , 47 ]. The type strain is 03 [7, IAM 12473, Orland L-323, R . P. Tittsler 303] T = ATCC 393 T = BCRC 10697 T = CCUG 21451 T = CECT 475 T = CIP 103137 T = DSM 20011 T = IAM 12473 T = NBRC 15883 T = JCM 1134 T = KCTC 3109 T = LMG 6904 T = NCIMB 11970 T = NCIMB 11970 T = NRRL B-1922 T . Genome sequence accession number: BALS00000000. 16S rRNA gene accession number: AF469172 .