pubmed-article:4216286 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:4216286 | lifeskim:mentions | umls-concept:C0038408 | lld:lifeskim |
pubmed-article:4216286 | lifeskim:mentions | umls-concept:C1880022 | lld:lifeskim |
pubmed-article:4216286 | pubmed:issue | 5 | lld:pubmed |
pubmed-article:4216286 | pubmed:dateCreated | 1975-3-10 | lld:pubmed |
pubmed-article:4216286 | pubmed:abstractText | A phage-mediated transducing system was used in studying certain physiological characteristics of S. lactis C2 wild type, lactose-negative mutants, and lactose-positive transductants. Lac(-) mutants, obtained by acriflavine treatment of the wild type, were similar to the wild type in all characteristics tested except they lacked beta-D-phosphogalactoside galactohydrolase (beta-Pgal) and could not transport [(14)C]lactose; they also had approximately 10% of the proteolytic ability than wild-type cells. The lactose-fermenting characteristic was transduced from the wild type to Lac(-) mutants. The Lac(+) transductants obtained were similar to the wild-type parent with respect to lactose fermentation and level of beta-Pgal activity (0.186 U of protein per mg). These transductants, however, had not regained full proteolytic ability and were similar to the Lac(-) mutant in this respect. Lactic acid production of the transductants in milk was approximately two-thirds that of the wild type. Data suggest that both the lactose-fermenting and proteolytic characters are carried on extrachromasomal particles (plasmids). | lld:pubmed |
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pubmed-article:4216286 | pubmed:language | eng | lld:pubmed |
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pubmed-article:4216286 | pubmed:citationSubset | IM | lld:pubmed |
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pubmed-article:4216286 | pubmed:status | MEDLINE | lld:pubmed |
pubmed-article:4216286 | pubmed:month | Nov | lld:pubmed |
pubmed-article:4216286 | pubmed:issn | 0003-6919 | lld:pubmed |
pubmed-article:4216286 | pubmed:author | pubmed-author:BrownL RLR | lld:pubmed |
pubmed-article:4216286 | pubmed:author | pubmed-author:SandineW EWE | lld:pubmed |
pubmed-article:4216286 | pubmed:author | pubmed-author:MolsknessT... | lld:pubmed |
pubmed-article:4216286 | pubmed:issnType | Print | lld:pubmed |
pubmed-article:4216286 | pubmed:volume | 28 | lld:pubmed |
pubmed-article:4216286 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:4216286 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:4216286 | pubmed:pagination | 753-8 | lld:pubmed |
pubmed-article:4216286 | pubmed:dateRevised | 2010-9-13 | lld:pubmed |
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pubmed-article:4216286 | pubmed:year | 1974 | lld:pubmed |
pubmed-article:4216286 | pubmed:articleTitle | Characterization of lac+ transductants of Streptococcus lactis. | lld:pubmed |
pubmed-article:4216286 | pubmed:publicationType | Journal Article | lld:pubmed |
pubmed-article:4216286 | pubmed:publicationType | Comparative Study | lld:pubmed |
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