Solvent-tolerant and -sensitive Pseudomonas putida strains were studied to determine their cell envelope changes following exposure to o-xylene. Both strains produced trans-unsaturated fatty acids. The tolerant strain showed an increase in total fatty acids, an increase in saturated fatty acids, and modified lipopolysaccharide. It is suggested that these envelope modifications aid in survival at high concentrations of organic solvents.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1388821PMC
http://dx.doi.org/10.1128/aem.62.3.1129-1132.1996DOI Listing

Publication Analysis

Top Keywords

fatty acids
12
cell envelope
8
envelope changes
8
pseudomonas putida
8
putida strains
8
exposure o-xylene
8
changes solvent-tolerant
4
solvent-tolerant solvent-sensitive
4
solvent-sensitive pseudomonas
4
strains exposure
4

Similar Publications

Abdominal LIPUS Stimulation Prevents Cognitive Decline in Hind Limb Unloaded Mice by Regulating Gut Microbiota.

Mol Neurobiol

January 2025

Center for Biomedical Engineering, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.

Weightlessness usually causes disruption of the gut microbiota and impairs cognitive function. There is a close connection between gut microbiota and neurological diseases. Low-intensity pulsed ultrasound (LIPUS) has a beneficial effect on reducing intestinal inflammation.

View Article and Find Full Text PDF

Exaggerated neuronal excitation by glutamate is a well-known cause of excitotoxicity, a key factor in numerous neurodegenerative disorders. This study examined the neurotoxic effect of monosodium glutamate (MSG) in the brain cortex of rats and focused on assessing the potential neuroprotective effects of omega-3 polyunsaturated fatty acids (ω-3 PUFAs). Four groups of adult male rats (n = 10) were assigned as follows; normal control, ω-3 PUFAs (400 mg/kg) alone, MSG (4 mg/g) alone, and MSG plus ω-3 PUFAs (4 mg/g MSG plus 400 mg/kg ω-3 PUFAs).

View Article and Find Full Text PDF

sp. nov., isolated from the faecal sample of a zoo animal, .

Int J Syst Evol Microbiol

January 2025

Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.

Strain NoAH (=KACC 23135=JCM 35999), a novel Gram-negative, motile bacterium with a rod-shaped morphology, was isolated from the zoo animal faecal samples, specifically the long-tailed goral species . The novel bacterial strain grew optimally in a nutrient broth medium under the following conditions: 1-2% (w/v) NaCl, pH 7-8 and 30 °C. The strain NoAH exhibited high tolerance to NaCl, with the ability to tolerate up to 7% (w/v) NaCl.

View Article and Find Full Text PDF

Stereoselective Reaction Enabling Simultaneous Analysis of Carbon-Carbon Double-Bond Configuration and the Position of Monounsaturated Fatty Acids through UHPLC-ESI-MRM-MS.

Anal Chem

January 2025

Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Beijing Mass Spectrum Center, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.

Monounsaturated fatty acids (MUFA) are an important class of nutrients and are involved in lipid metabolism. The positions of the C=C bond and cis-trans isomerism have a significant influence on their physiological activity. However, simultaneously detecting these two structural properties has been challenging due to multiple isomers of MUFA.

View Article and Find Full Text PDF

The excessive accumulation of intrahepatic triglyceride (IHTG) in the liver is a risk factor for metabolic diseases, including type 2 diabetes and cardiovascular disease. IHTG can excessively accumulate owing to imbalances in the delivery, synthesis, storage and disposal of fat to, in and from the liver. Although obesity is strongly associated with IHTG accumulation, emerging evidence suggests that the composition of dietary fat, in addition to its quantity, plays a role in mediating IHTG accumulation.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!