Multiple Bacteriocin Production by Leuconostoc mesenteroidesTA33a and Other Leuconostoc/Weissella Strains |
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| Authors: | Maria A Papathanasopoulos Francois Krier Anne-Marie Revol-Junelles Gerard Lefebvre Jean Pierre Le Caer Alexander von Holy John W Hastings |
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| Institution: | (1) Department of Microbiology, University of the Witwatersrand, P.O. WITS 2050, South Africa , ZA;(2) Laboratoire de Microbiologie Industrielle et Alimentaire, ENSAIA-INPL, 2 Avenue de la foret de Haye, 54500, Vandoeuvre les Nancy, France , FR;(3) Laboratoire de Neurobiologie de la Diversite Cellulaire, ESCPI, 10 rue Vauquelin, 75005, Paris, Cedex 05, France , FR;(4) Department of Genetics, University of Natal, Private Bag X01, Scottsville, 3209, South Africa , ZA |
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| Abstract: | Leuconostoc (Lc.) mesenteroides TA33a produced three bacteriocins with different inhibitory activity spectra. Bacteriocins were purified by adsorption/desorption
from producer cells and reverse phase high-performance liquid chromatography. Leucocin C-TA33a, a novel bacteriocin with a
predicted molecular mass of 4598 Da, inhibited Listeria and other lactic acid bacteria (LAB). Leucocin B-TA33a has a predicted molecular mass of 3466 Da, with activity against Leuconostoc/Weissella (W.) strains, and appears similar to mesenterocin 52B and dextranicin 24, while leucocin A-TA33a, which also inhibited Listeria and other LAB strains, is identical to leucocin A-UAL 187. A survey of other known bacteriocin-producing Leuconostoc/Weissella strains for the presence of the three different bacteriocins revealed that production of leucocin A-, B- and C-type bacteriocins
was widespread. Lc. carnosum LA54a, W. paramesenteroides LA7a, and Lc. gelidum UAL 187-22 produced all three bacteriocins, whereas W. paramesenteroides OX and Lc. carnosum TA11a produced only leucocin A- and B-type bacteriocins.
Received: 11 April 1997 / Accepted: 10 June 1997 |
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