Nitrogen metabolic profile of Lactococcus lactis subsp. cremoris strains under stress conditions

R. Fernández-Pérez; L. Díez Aldama; M. González Lázaro; M. Zarazaga Chamorro; C. Torres Manrique; C. Tenorio Rodriguez; O.P. Kuipers; F. Ruiz Larrea

Nitrogen metabolic profile of Lactococcus lactis subsp. cremoris strains under stress conditions

In: Industrial, medical and environmental applications of microorganisms

Authors:

R. Fernández-Pérez

R. Fernández-Pérez ¹Universidad de La Rioja ICVV (CSIC-UR-GR), C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain; fernanda.ruiz@unirioja.es

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L. Díez Aldama

L. Díez Aldama ¹Universidad de La Rioja ICVV (CSIC-UR-GR), C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain; fernanda.ruiz@unirioja.es

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M. González Lázaro

M. González Lázaro ¹Universidad de La Rioja ICVV (CSIC-UR-GR), C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain; fernanda.ruiz@unirioja.es

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M. Zarazaga Chamorro

M. Zarazaga Chamorro ²Área de Bioquímica y Biología Molecular, Departamento de Agricultura y Alimentación, Universidad de La Rioja, C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain

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C. Torres Manrique

C. Torres Manrique ²Área de Bioquímica y Biología Molecular, Departamento de Agricultura y Alimentación, Universidad de La Rioja, C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain

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C. Tenorio Rodriguez

C. Tenorio Rodriguez ¹Universidad de La Rioja ICVV (CSIC-UR-GR), C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain; fernanda.ruiz@unirioja.es

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O.P. Kuipers

O.P. Kuipers ³Molecular Genetics, Centrum voor Levenswetenschappen, Groningen Biomolecular Sciences and Biotechnology Institute (GBB) Rijksuniversiteit, Goningen (RUG), the Netherlands

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F. Ruiz Larrea

F. Ruiz Larrea ¹Universidad de La Rioja ICVV (CSIC-UR-GR), C/Madre de Dios 51, 26006 Logroño, La Rioja, Spain; fernanda.ruiz@unirioja.es

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Type:: Chapter

Pages:: 347–351

DOI:: https://doi.org/10.3920/9789086867950_061

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Lactococcus lactis subsp. cremoris MG1363 is an international prototype for genetic and physiological studies in lactic acid bacteria. The aim of this study was to determine and evaluate changes in the production of extracellular metabolites generated in aminoacidic routes by the species L. lactis subsp. cremoris in response to the stress due to the presence of ethanol in the culture medium. We analyzed aminoacids generated by the strain L. lactis subsp. cremoris MG1363 and three mutants: MGΔargR, MGΔahrC and MGΔargRΔahrC under different culture conditions. Results showed that L. lactis subsp. cremoris used arginine to grow in the presence of ethanol in the medium, using the ADI pathway and producing ornithine as final product of degradation, concluding that L. lactis subsp. cremoris utilized the ADI arginine degradation pathway as a response to the ethanol stress, producing ornithine as the final metabolic product.

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Industrial, medical and environmental applications of microorganisms

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E-Book ISBN:: 9789086867950

Publisher:: Wageningen Academic

Print Publication Date:: 01 Nov 2014

Subjects
- Life Sciences

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Nitrogen metabolic profile of Lactococcus lactis subsp. cremoris strains under stress conditions

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Industrial, medical and environmental applications of microorganisms

Current status and trends

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