title: VITAMIN K COMPOUNDS IN BACTERIA THAT ARE OBLIGATE ANAEROBES.
abstract: A naphthoquinone-dependent strain of Bacteroides melaninogenicus has been used in a microbiological assay to survey bacteria for compounds of the vitamin K group. Organisms known to contain vitamin K, as well as several bacteria that are obligate anaerobes, produced substances which satisfied the naphthoquinone requirement of the assay organism. Vitamin K was chemically isolated from strains of Bacteroides melaninogenicus, Bacteroides fragilis, and Veillonella alcalescens.
mesh_terms: D001419:Bacteria; D001421:Bacteria, Anaerobic; D001424:Bacterial Infections; D001439:Bacteroides; D001441:Bacteroides fragilis; D001681:Biological Assay; D012106:Research; D014812:Vitamin K; D014815:Vitamins
chemical_list: D014815:Vitamins; D014812:Vitamin K
keywords: BACTERIA; BACTEROIDES; BIOLOGICAL ASSAY; EXPERIMENTAL LAB STUDY; VITAMIN K