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1978•Applied and Environmental MicrobiologyOpen access

Plasmids, Lactic Acid Production, and N -Acetyl- d -Glucosamine Fermentation in Lactobacillus helveticus subsp. jugurti

Martin B. Smiley, V. Fryder

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Abstract

Two lactobacillus strains, Lactobacillus helveticus subsp. jugurti S13-8 and L. helveticus subsp. jugurti S36-2, were examined for the presence of plasmids. Plasmids of 16.45, 13.03, and 11.83 kilobases (kb) were found in the first, low lactic acid-producing strain; their function is not presently known. A single plasmid species of 13.17 kb was found in the second, high lactic acid-producing strain. This plasmid was found to be associated with lactic acid production and N-acetyl-d-glucosamine fermentation.

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Two lactobacillus strains, Lactobacillus helveticus subsp. jugurti S13-8 and L. helveticus subsp. jugurti S36-2, were examined for the presence of plasmids. Plasmids of 16.45, 13.03, and 11.83 kilobases (kb) were found in the first, low lactic acid-producing strain; their function is not presently known. A single plasmid species of 13.17 kb was found in the second, high lactic acid-producing strain. This plasmid was found to be associated with lactic acid production and N-acetyl-d-glucosamine fermentation.

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Available abstract

Two lactobacillus strains, Lactobacillus helveticus subsp. jugurti S13-8 and L. helveticus subsp. jugurti S36-2, were examined for the presence of plasmids. Plasmids of 16.45, 13.03, and 11.83 kilobases (kb) were found in the first, low lactic acid-producing strain; their function is not presently known. A single plasmid species of 13.17 kb was found in the second, high lactic acid-producing strain. This plasmid was found to be associated with lactic acid production and N-acetyl-d-glucosamine fermentation.

Key concepts: Lactobacillus helveticus, Plasmid, Lactic acid, Fermentation, Lactobacillus, Bacteria, Lactobacillaceae, Strain (injury)

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Plasmids, Lactic Acid Production, and N -Acetyl- d -Glucosamine Fermentation in Lactobacillus helveticus subsp. jugurti — Research Paper | ScholarLens