Vitamin K Compounds in Bacteria That Are Obligate Anaerobes
- 4 December 1964
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 146 (3649), 1307-1309
- https://doi.org/10.1126/science.146.3649.1307
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.Keywords
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