title: Frequency of the insertion sequence IS4Bsu1 among Bacillus subtilis strains isolated from fermented soybean foods in Southeast Asia.
abstract: Among 45 Bacillus subtilis strains isolated from non-salted types of fermented soybeans produced in several Southeast Asian countries, 20 had the insertion sequence IS4Bsu1 in the chromosome. In contrast, none of 49 B. subtilis strains of non-food origin contained IS4Bsu1. Frequent occurrence of this mobile DNA element in the soybean-fermenting B. subtilis would reflect the fact that few strains flourish on soybeans and thereby contribute to soybean fermentation.
authors.affiliation: Division of Applied Microbiology, National Food Research Institute, Tsukuba, Ibaraki, Japan.
authors.forename: Keitarou
authors.initials: K
authors.lastname: Kimura
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Inatsu
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Itoh
mesh_terms: D001210:Asia, Southeastern; D001412:Bacillus subtilis / Q000235:genetics* / Q000302:isolation & purification*; D004251:DNA Transposable Elements / Q000235:genetics*; D005285:Fermentation; D005516:Food Microbiology; D005798:Genes, Bacterial / Q000235:genetics; D013025:Glycine max / Q000382:microbiology*
chemical_list: D004251:DNA Transposable Elements