Anaerobic cultivation of Pseudomonas aeruginosa PA14 in BHI
Ontology highlight
ABSTRACT:
INSTRUMENT(S): Q Exactive HF
ORGANISM(S): Pseudomonas Aeruginosa Ucbpp-pa14 (ncbitaxon:208963)
SUBMITTER: 
Pengbo Cao
PROVIDER: MSV000089197 | MassIVE | Mon Apr 04 14:39:00 BST 2022
SECONDARY ACCESSION(S): PXD032986
REPOSITORIES: MassIVE
Similar Datasets
Project description:Analysis of Pseudomonas aeruginosa transcriptomes during infection has identified a gene, PA1414 (PAO1 locus tag), that is highly expressed in various types of human infection. This gene was also found to be highly induced under low oxygen conditions, including anaerobic condition as well as static cultivation. Here we compared the proteomes of P. aeruginosa PA14 and the PA1414 mutant during static cultivation in Brain Heart Infusion (BHI) broth supplemented with 50 mM nitrate to identify the pathways regulated by PA1414.
2022-04-04 | MSV000089196 | MassIVE
Project description:Pseudomonas aeruginosa undergoes cell elongation and forms robust biofilms during anaerobic respiratory growth using nitrate (NO3-) as an alternative electron acceptor. Understanding the mechanism of cell shape change induced upon anaerobiosis is crucial to the development of effective treatments against P. aeruginosa biofilm infection. Anaerobic growth of PAO1 reached higher cell density in the presence of vitamin B12, an essential coenzyme of class II ribonucleotide reductase. In addition, cell morphology returned to a normal rod shape. These results suggest that vitamin B12, the production of which was suppressed during anaerobic growth, can restore cellular machineries for DNA replication and therefore facilitate better anaerobic growth of P. aeruginosa with normal cell division. We used microarray to elucidate the global gene expression profiles underlying vitamin B12-induced changes in bacterial cell shape and growth-associated properties. Gene expression profiles of PAO1 grown in LBN (LB+NO3-) or LBN supplemented with 1 microM vitamin B12 are compared.
2012-06-17 | E-GEOD-34836 | biostudies-arrayexpress
Project description:Pseudomonas aeruginosa undergoes cell elongation and forms robust biofilms during anaerobic respiratory growth using nitrate (NO3-) as an alternative electron acceptor. Understanding the mechanism of cell shape change induced upon anaerobiosis is crucial to the development of effective treatments against P. aeruginosa biofilm infection. Anaerobic growth of PAO1 reached higher cell density in the presence of vitamin B12, an essential coenzyme of class II ribonucleotide reductase. In addition, cell morphology returned to a normal rod shape. These results suggest that vitamin B12, the production of which was suppressed during anaerobic growth, can restore cellular machineries for DNA replication and therefore facilitate better anaerobic growth of P. aeruginosa with normal cell division. We used microarray to elucidate the global gene expression profiles underlying vitamin B12-induced changes in bacterial cell shape and growth-associated properties.
2012-06-18 | GSE34836 | GEO
Project description:We aim to compare global transcriptomic analysis of wt and delta-nrdRmutant in Pseudomonas aeruginosa PAO1 during aerobic and anaerobic conditions.
2016-06-27 | E-MTAB-3006 | biostudies-arrayexpress
Project description:Effect of anaerobic growth condition on gene expression profile of Pseudomonas aeruginosa PA14 grown in cystic fibrosis sputum with 100 mM nitrate added
2007-06-01 | E-MEXP-1051 | biostudies-arrayexpress
Project description:Genomic DNA from Pseudomonas aeruginosa strains PAO1 and PA14
2015-11-15 | GSE67038 | GEO
Project description:The anaerobic metabolism of the opportunistic pathogen Pseudomonas aeruginosa is important for growth and survival during persistent infections. The two Fnr-type transcription factors Anr and Dnr regulate different parts of the underlying network. Both are proposed to bind to a non-distinguishable DNA sequence named Anr box. The aim of this study was the identification of genes induced under anaerobic conditions in the P. aeruginosa wild type and identification of genes under control of the Anr or Dnr regulators. We performed three comparisons to identify genes induced under anaerobic denitrifying conditions in the P. aeruginosa wild type strain and genes which are under control of the Anr or Dnr regulators under these anaerobic conditions. Since the anr and dnr mutant strains do not grow under anaerobic denitrifying conditions, we applied anaerobic shift experiments. Pseudomonas aeruginosa was grown in a modified AB minimal medium, containing 25 µM FeSO4, 20 mM glucose and 50 mM NaNO3. The 200 ml aerobic cultures were grown in 1 l Erlenmeyer flasks at 37 oC and 300 rpm. The aerobic culture was grown to an OD578 of 0.3. For the aerobic culture, cells were harvested at this point. For the anaerobic shift experiments 130 ml of the respective aerobic culture were transferred to a 135 ml sealed serum flask. Control experiments verified that oxygen tension decreased within 3 - 5 min below the detection limit of an oxygen electrode. The cells were harvested after incubation for additional 2h under anaerobic conditions. Within these 2h incubation period no growth of the wild type, the anr mutant or the dnr mutant strain was observed. First comparison: Identification of genes induced or repressed under anaerobic conditions in the P. aeruginosa wild type PAO1. Here we compared the transcriptome profile of P. aeruginosa PAO1 grown under aerobic conditions up to an OD578 of 0.3 with the transcriptome profile of the PAO1 strain, which was first grown under aerobic conditions up to an OD578 of 0.3 and than shifted to anaerobic conditions by transfer to a sealed serum flask and further incubated for two hours under anaerobic conditions. Second comparison: Identification of genes regulated differently in the anr mutant strain PAO6261. Here we compared the transcriptome profile of the P. aeruginosa wild type PAO1 with the transcriptome profile of the P. aeruginosa anr mutant strain PAO6261. Both strains were harvested after 2h incubation under anaerobic conditions. Third comparison: Identification of genes regulated differently in the dnr mutant strain RM536. Here we compared the transcriptome profile of the P. aeruginosa wild type PAO1 with the transcriptome profile of the P. aeruginosa dnr mutant strain RM536. Both strains were harvested after 2h incubation under anaerobic conditions.
2010-07-07 | E-GEOD-17179 | biostudies-arrayexpress
Project description:Pseudomonas aeruginosa airway infection is the leading cause of morbidity and mortality in cystic fibrosis (CF) patients. In vitro models that closely mimic CF sputum are needed to improve understanding of the pathobiology of P. aeruginosa in the CF airway. We developed an artificial sputum medium (ASMDM) that more closely resembles the composition of CF sputum than current media. In order to validate the utility of ASMDM, we used GeneChip microarrays to compare expression data of P. aeruginosa UCBPP-PA14 (PA14) in ASMDM with published data for this strain grown under the same conditions in an artificial medium containing 10% (v/v) CF sputum. Thirty-seven of 39 nutrition-related genes were differentially expressed in the same manner in both media. However, 24 quorum-sensing (QS) genes, 23 Type III secretion system and several anaerobic respiration genes were more highly expressed in ASMDM than in sputum-containing medium. When grown to stationary phase in ASMDM, PA14 differentially expressed about 50 biologically significant genes compared to stationary phase growth in Luria Broth; genes involved in iron acquisition (pfeA, fepC) and in assimilatory nitrate reduction (nasC, nirD) were upregulated, while 24 QS genes, including the regulator rhlR, lasA, rsaL, aprADEI and phenazine genes phzC2DD2EG2 were downregulated. Downregulation of QS-regulated virulence genes has been noted in chronic P. aeruginosa infection. ASMDM thus appears highly suitable for studies on gene expression of (i) P. aeruginosa strains from acutely and chronically infected CF patients and (ii) established biofilms that are a hallmark of advanced CF lung disease.
2010-05-31 | GSE18594 | GEO
Project description:To see the effect of sub-lethal concentration of tobramcyin on PAO1 under anaerobic conditions. RNA was isolated from 5 biological repeats of PAO1 grown to mid-log phase in cationic adjusted mueller hinton broth containing 15mM KNO3 and 5 biological repeats of PAO1 grown to mid-log phase in cationic adjusted mueller hinton broth containing 15mM KNO3 and then treated for 30 minutes with 2 ug/ml tobramycin. All flasks were sealed to create anaerobic conditions. null
2011-01-20 | E-FPMI-25 | biostudies-arrayexpress
Project description:Pseudomonas aeruginosa is one of the most frequent pathogen dominant in complicated urinary tract infections (UTI). To unravel the adaptation strategies of P. aeruginosa to the conditions in the urinary tract and to define the underlying regulatory network an artificial growth system mimicking the conditions in the urinary tract was established. Transcriptome analyses were used to investigate the physiological status of P. aeruginosa under this conditions. We performed comparisons to identify genes induced under artificial urinary tract conditions to unravel the adaptive strategies and the underlying regulatory network used by Pseudomonas aeruginosa during urinary tract infections using Affimetrix GeneChips. Pseudomonas aeruginosa wild type strain PAO1 was grown in an artificial in vitro growth system mimicking the conditions in the urinary tract. Therefore, biofilms were grown on the surface of membrane filters placed on agar plates at 37 °C up to the late logarithmic state under aerobic and anaerobic conditions (incubated in an anaerobic beanch). An artificial urine medium (AUM) simulating the averaged urine of an human adult was used as nutrient souce. 10-fold diluted Luria Bertani (LB)-medium was used as reference medium. For growth under oxygen depletion the media were supplemented with 50 mM KNO3 to sustain anaerobic respiration. The biofilms were harveted at this time points and resuspsended in 0.9% (w/v) NaCl. The OD578 of biofilm suspension was 0.8 for all tested conditions. First comparison: Identification of genes induced or repressed under aerobic conditions in the P. aeruginosa wild type PAO1. Here we compared the transcriptome profile of P. aeruginosa PAO1 grown aerobically for 18 h to the late logarithmic phase in biofilms on AUM with the transcriptome profile of the PAO1 strain, which was grown aerobically for 18 h to the late logarithmic phase in biofilms on 10-fold diluted LB. Second comparison: Identification of genes induced or repressed under anaerobic conditions in the P. aeruginosa wild type PAO1. Here we compared the transcriptome profile of P. aeruginosa PAO1 grown anaerobically for 2 days up to the late logarithmic phase in biofilms on AUM supplemented with 50 mM nitrate with the transcriptome profile of the PAO1 strain, which was grown anaerobically for 2 days up to the late logarithmic phase in biofilms on 10-fold diluted LB supplemented with 50 mM nitrate.
2013-06-30 | E-GEOD-33160 | biostudies-arrayexpress