Instability of lactose and citrate metabolism of Leuconostoc strains |
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| Authors: | L. Fantuzzi M. Vescovo V. Bottazzi |
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| Affiliation: | (1) Istituto di Microbiologia, Universitá Cattolica, 29100 Piacenza, Italy;(2) Present address: Laboratorio de Bacterias Lácticas, Universidad Nacional de Luján, CC 221, 6700 Luján, Buenos Aires, Argentina |
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| Abstract: | Summary The instability of Lac+ and Cit+ phenotypes was investigated inLeuconostocmesenteroides subsp.cremoris ATCC 19245 and in four strains ofLeuconostocmesenteroides subsp.dextranicum. The two phenotypes were linked respectively to a 14 Mdal and a 34 Mdal plasmid in Leuconostoc mesenteroides subsp.cremoris ATCC 19245. InLeuconostocmesenteroides subsp.dextranicum the character Lac+ was linked to a 28 Mdal plasmid, while the Cit+ phenotype was stable. |
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