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Aerobic cultivation vs Respiratory conditions

ABSTRACT: The effect of respiration (aerobic cultivation in the presence of heme and vitamin K2) was compared with unsupplemented aerobic cultivation with Lactobacillus plantarum.

ORGANISM(S): Lactiplantibacillus plantarum WCFS1 Lactiplantibacillus plantarum

PROVIDER: GSE18432 | GEO | 2010/01/01

SECONDARY ACCESSION(S): PRJNA118231

REPOSITORIES: GEO

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Aerobic cultivation vs Respiratory conditions

Project description:The effect of respiration (aerobic cultivation in the presence of heme and vitamin K2) was compared with unsupplemented aerobic cultivation with Lactobacillus plantarum. Two-condition experiment, aerobic vs respiring cells. Biological replicates: 3 aerobic cultures, 3 respiring cultures, independently grown and harvested. One replicate per array. Respiring cultures are called reactor 1-3; Aerobic cultures are called reactor 4-6 In the subsequent analysis data from reactor 4 were not used. There was likely a mistake made during quenching. This was concluded as new labeling/hybridisation gave same (bad) results (128a); slide 128b was dye-swap.

2010-05-16 | E-GEOD-18432 | biostudies-arrayexpress

citrate vs nitrate Reducing cultures

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citrate vs nitrate Reducing cultures

Project description:The effect of nitrate reduction (anaerobic cultivation in the presence of heme, vitamin K2 and nitrate) was compared with anaerobic cultivation supplemented with citrate (Lactobacillus plantarum). The medium was chemically defined medium with mannitol as main carbon source Two-condition experiment, nitrate vs citrate reducing cells. Biological replicates: 4 nitrate reducing cultures, 4 citrate reducing cultures, independently grown and harvested. Two slides were used, each slide contained 8 Arrays. Citrate reducing cultures are called reactor 1-4, Nitrate reducing cultures are called reactor A-D

2010-05-16 | E-GEOD-18339 | biostudies-arrayexpress

Improvement of Lactobacillus plantarum Aerobic Growth by Comprehensive Transcriptome Analysis

Project description:An aerobic Lactobacillus plantarum culture displayed growth stagnation during early growth. Transcriptome analysis revealed that regain of growth after stagnation correlated with activation of CO2-producing pathways suggesting that limiting CO2-concentration induced stagnation. Analogously providing increased CO2 gas partial pressure during aerobic fermentation prevented the temporal growth stagnation. Keywords: cell type comparison

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Anaerobic carbon-limited retentostat cultivation of Lactobacillus plantarum WCFS1

Project description:Lactobacillus plantarum WCFS1 was grown under anaerobic carbon-limited conditions in a chemostat with complete biomass retention (retentostat). In this cultivation system, the biomass concentration progressively increases while the dilution rate is kept constant, resulting in decreased specific susbtrate availibility, and hence, a progressive decrease in the specific growth rate. During the progressive transition from growth to virtually no growth, the global changes occurring at the level of metabolism and gene expression were studied using a genome-scale metabolic model and DNA microarrays. Four different time-points are compared, corresponding to 4 different specific growth rates, and hence, 4 different ratios of energy used for maintenance and growth. The samples taken at the start of retentostat cultivation serves as a a reference sample, to which the three other samples (taken after 3 days, 17 days, and 31 days under retentostat conditions) are compared. No biological replicates: all samples were taken from the same retentostat fermentation.

2010-05-16 | E-GEOD-18340 | biostudies-arrayexpress

Heme_k2_Filtered bckg correct trans-norm

Project description:We ran for each studied culture (WCFS1 NZ7608 NZ7602 and NZ7603) an independent shake flask cultivation and designed one experiment. The hybridization scheme (4 arrays) of the experiment was as follows: WCFS1_respiratory NZ7608_respiratory NZ7602_respiratory NZ7603_respiratory WCFS1_respiratory. In the experiment we studied the difference in response towards respiratory cultivation (OXYGEN HEME and VITAMIN K2) of each strain compared to wild type Keywords: comparative genomic hybridization

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Project description:In this manuscript, we present a more extensive analysis of inflammatory suppression mediated by L. plantarum at the respiratory tract. Via full genome microarray of whole lung tissue, we have generated an extensive list of soluble proinflammatory mediators that are expressed in response to PVM infection and we identify those mediators that are suppressed and also those that are not suppressed in response to L. plantarum priming. We focused further study on three specific virus-induced soluble mediators that are differentially expressed and that serve as specific biomarkers for Lactobacillus-mediated survival in response to acute respiratory virus infection. Among several novel directions, we use these biomarker cytokines to explore Lactobacillus-mediated actions at the respiratory tract that are unique and distinct from those taking place at gastrointestinal mucosa. innoculation of mouse using combinations of PBS/BSA, Lactobacillus plantarum and pneumonia virus

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Project description:Compare the physiological state between static, aerobic, and respiratory growth of Lactococcus lactis subsp. lactis CHCC2862 using whole genome transcriptomes. NOTE: the biological replicate array GSM243206 is dye-swapped relative to GSM202337 (unlike the two other biological replicate arrays GSM243203 and GSM24205). Keywords: Physiological response to aerobic and respiratory growth relative to static.

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