On the iron requirement of lactobacilli grown in chemically defined medium.
The iron requirement of four strains of lactobacilli (L. acidophilus, L. delbrueckii subsp. bulgaricus, L. plantarum, and L. pentosus) was studied in a synthetic medium under aerobic or anaerobic conditions. Effects of iron salt and iron-chelated compounds were tested on bacterial growth in manganese-free or -supplemented media. No significant growth stimulation was observed in any condition. These results support the absolute manganese requirement for optimum growth of lactobacilli and the needless incorporation of iron in growth media.
Imbert
M
M
Laboratoire de Microbiologie, Université des Sciences et Technologies de Lille, Bâtiment SN2, F-59655 Villeneuve d'Ascq Cedex, France.
Blondeau
R
R
D000332:Aerobiosis; D000693:Anaerobiosis; D001431:Bacteriological Techniques; D003470:Culture Media / Q000737:chemistry; D007501:Iron / Q000378:metabolism*; D007502:Iron Chelating Agents / Q000378:metabolism; D007778:Lactobacillus / Q000254:growth & development / Q000378:metabolism*; D008278:Magnesium Sulfate / Q000378:metabolism
D003470:Culture Media; D007502:Iron Chelating Agents; D008278:Magnesium Sulfate; D007501:Iron