Autor: |
Mai Hu'o'ng, Lý, Jean-François, Cavin, Rémy, Cachon, Thanh Mai, Lê, Jean-Marc, Belin, Yves, Waché |
Rok vydání: |
2007 |
Předmět: |
|
Zdroj: |
FEMS microbiology letters. 268(2) |
ISSN: |
0378-1097 |
Popis: |
Some strains of Lactococcus lactis subspecies possess a citrate permease that enables them to utilize citrate and to produce diacetyl. Such strains are classified as diacetylactis biovariants (L. lactis ssp. lactis biovar. diacetylactis). We investigated the electron-donor surface properties of L. lactis strains and observed that the diacetylactis biovariants presented increased adhesion to electron-acceptor solvents (microbial adhesion to solvents electron-donor characteristics of cells of27% for L. lactis and about 50% for L. lactis ssp. lactis biovar diacetylactis). We investigated the properties of a pCitP- derivative and observed for a diacetylactis biovariant strain a loss of the electron-donor characteristics falling from 47% for a pCitP+ strain to 8% for its pCitP- derivative. This suggests that the presence of high electron-donor characteristics on the surface of L. lactis results to a large extent from the presence of the citrate permease plasmid. |
Databáze: |
OpenAIRE |
Externí odkaz: |
|