Physiological characterization of Lactic acid bacteria grown in C-limited continuous cultures

SysMO is a European transnational funding and research initiative on "Systems Biology of Microorganisms".

The goal pursued by SysMO was to record and describe the dynamic molecular processes going on in unicellular microorganisms in a comprehensive way and to present these processes in the form of computerized mathematical models.

Systems biology will raise biomedical and biotechnological research to a new quality level and contribute markedly to progress in understanding. Pooling European research ...

Comparative Systems Biology: Lactic Acid Bacteria

Challenge: Comparative analyses, as demonstrated by comparative genomics and bioinformatics, are extremely powerful for (i) transfer of information from (experimentally) well-studied organisms to the other organisms, and (ii) when coupled to functional and phenotypic information, insight in the relative importance of components to the observed differences and simalities. The central principle of this proposal is that important aspects of the functional differences between organisms derive not ...

Lactic acid bacteria generally use homolactic fermentation for generation of ATP. Here we studied the role of the lactate dehydrogenase enzyme on the general physiology of the three lactic acid bacteria Lactococcus lactis, Enterococcus faecalis and Streptococcus pyogenes. Surprisingly deletion of the ldh genes hardly affected the growth rate in chemically defined medium, however growth rate was affected in rich medium. Furthermore, deletion of ldh affected the ability for utilization of various ...

S. pyogenes was grown in C-limited cultures at pH 6.7 and 7.5 and at a growth rate of 0.05 and 0.15

E. faecalis was grown in C-limited cultures at pH 6.7 and 7.5 and at a growth rate of 0.05 and 0.15

L. lactis was grown in C-limited cultures at pH 6.7 and 7.5 and at a growth rate of 0.05, 0.15 and 0.40