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 2020-04-15 70 2782 2858 journal article 7136 10.1099/ijsem.0.004107 c650e745-85a1-48ca-b29a-b1714f644bae 4730536 DESCRIPTIONOF LACTICASEIBACILLUS GEN. NOV. Lacticaseibacillus (Lac.ti.ca.se.i.ba.cil'lus. L. neut. n. lac milk; L. n. caseus cheese, referring to the casei-group lactobacilli; L. masc. n. bacillus a rod; N.L. masc. n. Lacticaseibacillus a milk-derived rodlet from the [ Lactobacillus ] casei group). Strains of Lacticaseibacillus are homofermentative; some but not all species metabolise pentoses via the phosphoketolase pathway. The mol % G+C content of DNA is between 46 and 58.0. The genome size ranges from 1.93 to 3.14 Mbp. Strains are non-motile, oxidase negative, often producing D(−)- and L(+)-lactic acid from glucose. The temperature range for growth is variable, but never below 10 °C and never above 45 °C. One subspecies survives 70 °C for 40 s. Lys–D-Asp is the most common type of the peptidoglycan. The genus has considerable economic importance as it harbours several species thatare used as starter cultures indairy fermentations and as probiotics [ 58 , 59 ]. Aphylogenetic tree on the basis of 16S rRNA genes of all species in the genus Lacticaseibacillus is provided in Fig. S6F . The type species is Lacticaseibacillus casei comb. nov. ; Lacticaseibacillus was previously referred to as L. casei group.