Table 1.

Experimental evolution studies with LAB discussed in this review.

OrganismTypes of protocol usedSelective conditions(s)Main findingReference
Lactococcus lactisSerial propagationStarvation/growth, aerated/not shakenIS element-mediated mutations are frequently occurringde Visser et al. (2004)
Lactococcus lactisSerial propagationPlant isolate adapted to growth in milkGenome erosion; importance of nitrogen metabolism for growth in milk; one mutator strains identifiedBachmann et al. (2011)
Lactobacillus rhamnosusSerial propagationSalt, bile and shear stressChromosomal rearrangements and mutator strains were identifiedDouillard et al. (2016)
Lactococcus lactisSerial propagationFast growing variants of ldh deletion mutant were selectedIS981 activated the ldhB gene which lead to switch from mixed acid fermentation to homolactic fermentationBongers et al. (2003)
Lactobacillus plantarumSerial propagationSurviving passage of the murine gastro intestinal tractRepetitive rounds of exposure to mouse GIT resulted in higher GIT survival ratesvan Bokhorst-van de Veen et al. (2013)
Lactococcus lactisSerial propagation (unintentional selection)ldh deletion mutant showed unexpectedly homolactic metabolism; ldh-positive variant was probably selected unintentionally during propagation after strain construction (see also Bongers et al.2003)IS905 activated ldhB gene and lead to switch from mixed acid fermentation to homolactic fermentationGaspar et al. (2007)
Lactococcus lactisDominant selectionGrowth of MG1363 (lac- strain) on lactoseUpregulation of cellobiose PTS allows growth on lactoseSolopova et al. (2012)
Lactococcus lactisDominant selectionGrowth on medium containing H2O2Isolation of SpOx mutants (spontaneous oxidative stress resistant)Rochat et al. (2005)
Lactococcus lactisDominant selectionGrowth at elevated temperatureMutation in c-di-AMP specific phosphodiesterase leads to heat resistance and salt hypersensitivitySmith et al. (2012)
Lactobacillus helveticusDominant selectionGrowth at elevated temperatureIncreased growth rate at elevated temperature lead to increased autolysis under cheese-like conditionsSpus et al. (2017)
Lactococcus lactisEmulsion propagationSelection for a high number of offspringSelection for cell yield resulted in slow growing cells with high biomass yield and mixed acid fermentationBachmann et al. (2013)
Lactococcus lactisChemostatCarbon limitation at various dilution ratesMutations in ccpA, a global regulator of carbon metabolism, were found across different conditionsPrice et al. (2010, unpublished)
OrganismTypes of protocol usedSelective conditions(s)Main findingReference
Lactococcus lactisSerial propagationStarvation/growth, aerated/not shakenIS element-mediated mutations are frequently occurringde Visser et al. (2004)
Lactococcus lactisSerial propagationPlant isolate adapted to growth in milkGenome erosion; importance of nitrogen metabolism for growth in milk; one mutator strains identifiedBachmann et al. (2011)
Lactobacillus rhamnosusSerial propagationSalt, bile and shear stressChromosomal rearrangements and mutator strains were identifiedDouillard et al. (2016)
Lactococcus lactisSerial propagationFast growing variants of ldh deletion mutant were selectedIS981 activated the ldhB gene which lead to switch from mixed acid fermentation to homolactic fermentationBongers et al. (2003)
Lactobacillus plantarumSerial propagationSurviving passage of the murine gastro intestinal tractRepetitive rounds of exposure to mouse GIT resulted in higher GIT survival ratesvan Bokhorst-van de Veen et al. (2013)
Lactococcus lactisSerial propagation (unintentional selection)ldh deletion mutant showed unexpectedly homolactic metabolism; ldh-positive variant was probably selected unintentionally during propagation after strain construction (see also Bongers et al.2003)IS905 activated ldhB gene and lead to switch from mixed acid fermentation to homolactic fermentationGaspar et al. (2007)
Lactococcus lactisDominant selectionGrowth of MG1363 (lac- strain) on lactoseUpregulation of cellobiose PTS allows growth on lactoseSolopova et al. (2012)
Lactococcus lactisDominant selectionGrowth on medium containing H2O2Isolation of SpOx mutants (spontaneous oxidative stress resistant)Rochat et al. (2005)
Lactococcus lactisDominant selectionGrowth at elevated temperatureMutation in c-di-AMP specific phosphodiesterase leads to heat resistance and salt hypersensitivitySmith et al. (2012)
Lactobacillus helveticusDominant selectionGrowth at elevated temperatureIncreased growth rate at elevated temperature lead to increased autolysis under cheese-like conditionsSpus et al. (2017)
Lactococcus lactisEmulsion propagationSelection for a high number of offspringSelection for cell yield resulted in slow growing cells with high biomass yield and mixed acid fermentationBachmann et al. (2013)
Lactococcus lactisChemostatCarbon limitation at various dilution ratesMutations in ccpA, a global regulator of carbon metabolism, were found across different conditionsPrice et al. (2010, unpublished)
Table 1.

Experimental evolution studies with LAB discussed in this review.

OrganismTypes of protocol usedSelective conditions(s)Main findingReference
Lactococcus lactisSerial propagationStarvation/growth, aerated/not shakenIS element-mediated mutations are frequently occurringde Visser et al. (2004)
Lactococcus lactisSerial propagationPlant isolate adapted to growth in milkGenome erosion; importance of nitrogen metabolism for growth in milk; one mutator strains identifiedBachmann et al. (2011)
Lactobacillus rhamnosusSerial propagationSalt, bile and shear stressChromosomal rearrangements and mutator strains were identifiedDouillard et al. (2016)
Lactococcus lactisSerial propagationFast growing variants of ldh deletion mutant were selectedIS981 activated the ldhB gene which lead to switch from mixed acid fermentation to homolactic fermentationBongers et al. (2003)
Lactobacillus plantarumSerial propagationSurviving passage of the murine gastro intestinal tractRepetitive rounds of exposure to mouse GIT resulted in higher GIT survival ratesvan Bokhorst-van de Veen et al. (2013)
Lactococcus lactisSerial propagation (unintentional selection)ldh deletion mutant showed unexpectedly homolactic metabolism; ldh-positive variant was probably selected unintentionally during propagation after strain construction (see also Bongers et al.2003)IS905 activated ldhB gene and lead to switch from mixed acid fermentation to homolactic fermentationGaspar et al. (2007)
Lactococcus lactisDominant selectionGrowth of MG1363 (lac- strain) on lactoseUpregulation of cellobiose PTS allows growth on lactoseSolopova et al. (2012)
Lactococcus lactisDominant selectionGrowth on medium containing H2O2Isolation of SpOx mutants (spontaneous oxidative stress resistant)Rochat et al. (2005)
Lactococcus lactisDominant selectionGrowth at elevated temperatureMutation in c-di-AMP specific phosphodiesterase leads to heat resistance and salt hypersensitivitySmith et al. (2012)
Lactobacillus helveticusDominant selectionGrowth at elevated temperatureIncreased growth rate at elevated temperature lead to increased autolysis under cheese-like conditionsSpus et al. (2017)
Lactococcus lactisEmulsion propagationSelection for a high number of offspringSelection for cell yield resulted in slow growing cells with high biomass yield and mixed acid fermentationBachmann et al. (2013)
Lactococcus lactisChemostatCarbon limitation at various dilution ratesMutations in ccpA, a global regulator of carbon metabolism, were found across different conditionsPrice et al. (2010, unpublished)
OrganismTypes of protocol usedSelective conditions(s)Main findingReference
Lactococcus lactisSerial propagationStarvation/growth, aerated/not shakenIS element-mediated mutations are frequently occurringde Visser et al. (2004)
Lactococcus lactisSerial propagationPlant isolate adapted to growth in milkGenome erosion; importance of nitrogen metabolism for growth in milk; one mutator strains identifiedBachmann et al. (2011)
Lactobacillus rhamnosusSerial propagationSalt, bile and shear stressChromosomal rearrangements and mutator strains were identifiedDouillard et al. (2016)
Lactococcus lactisSerial propagationFast growing variants of ldh deletion mutant were selectedIS981 activated the ldhB gene which lead to switch from mixed acid fermentation to homolactic fermentationBongers et al. (2003)
Lactobacillus plantarumSerial propagationSurviving passage of the murine gastro intestinal tractRepetitive rounds of exposure to mouse GIT resulted in higher GIT survival ratesvan Bokhorst-van de Veen et al. (2013)
Lactococcus lactisSerial propagation (unintentional selection)ldh deletion mutant showed unexpectedly homolactic metabolism; ldh-positive variant was probably selected unintentionally during propagation after strain construction (see also Bongers et al.2003)IS905 activated ldhB gene and lead to switch from mixed acid fermentation to homolactic fermentationGaspar et al. (2007)
Lactococcus lactisDominant selectionGrowth of MG1363 (lac- strain) on lactoseUpregulation of cellobiose PTS allows growth on lactoseSolopova et al. (2012)
Lactococcus lactisDominant selectionGrowth on medium containing H2O2Isolation of SpOx mutants (spontaneous oxidative stress resistant)Rochat et al. (2005)
Lactococcus lactisDominant selectionGrowth at elevated temperatureMutation in c-di-AMP specific phosphodiesterase leads to heat resistance and salt hypersensitivitySmith et al. (2012)
Lactobacillus helveticusDominant selectionGrowth at elevated temperatureIncreased growth rate at elevated temperature lead to increased autolysis under cheese-like conditionsSpus et al. (2017)
Lactococcus lactisEmulsion propagationSelection for a high number of offspringSelection for cell yield resulted in slow growing cells with high biomass yield and mixed acid fermentationBachmann et al. (2013)
Lactococcus lactisChemostatCarbon limitation at various dilution ratesMutations in ccpA, a global regulator of carbon metabolism, were found across different conditionsPrice et al. (2010, unpublished)
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