Malathion organophosphates considered as the major constituent of herbicides, pesticides and insecticides. Extensively used in agricultural, horticultures and for numerous household applications contributes to precedence organic pollutants leading antagonistic effects on human health and environment. Therefore detoxification of malathion from contaminated site is of general interest. Simultaneously it is very emerging to isolated novel indigenous microbial strains from contaminated site with a record of pesticide application. In this study Escherichia coli IES-02 isolated from malathion contaminant effluent and the strain showed maximum efficiency in malathion degradation that utilized it as the sole source of carbon. Carboxylesterase (33.0, 30.0, 28.0 kDa) were purified (1685.71 U/mg) from Escherichia coli IES-02 showed significant results in malathion degradation approximately 81% within 20 min as compared with Escherichia coli IES-02 cells within 4 h (99.0 to 95.0%) into monocarboxylic acid and diacid derivatives. The generation time of Escherichia coli was also observed at 60 min with 0.1 ppm, 68 min with 0.5 ppm, 74.5 min with 2.0 ppm and 91.37 min with 50 ppm of malathion. The degradation rate and transformation metabolites were estimated by Gas Chromatography-Mass Spectrometry respectively. Malathion metabolites pathway proposed in this study which revealed the potential application against lethal environmental pollution.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2019.12.192 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A novel small RNA regulates Locus of Enterocyte Effacement and site-specific colonization of enterohemorrhagic O157:H7 in gut.
Front Cell Infect Microbiol
January 2025
College of Public Health, North China University of Science and Technology, Tangshan, China.
Enterohemorrhagic (EHEC) is a contagious foodborne pathogen that specifically colonizes the human large intestine, which is regulated by different environmental stimuli within the gut. Transcriptional regulation of EHEC virulence and infection has been extensively studied, while the posttranscriptional regulation of these processes by small RNAs (sRNAs) remains not fully understood. Here we present a virulence-regulating pathway in EHEC O157:H7, in which the sRNA EvrS binds to and destabilizes the mRNA of Z2269, a novel transcriptional regulator.
View Article and Find Full Text PDFDevelopment of a colloidal gold immunochromatographic assay utilizing dual-antibody sandwich method for detecting .
Front Microbiol
January 2025
College Food Science and Light Industry, Nanjing Tech University, Nanjing, China.
A colloidal gold immunochromatographic assay (ICA) based on a dual-antibody sandwich method was developed for the rapid and convenient detection of () antigens in the early stages of infection. Monoclonal antibodies designed as 5B3 targeting the conserved region of 56 kDa outer membrane protein in various strains of were generated through cell fusion and screening techniques and combined with previously prepared polyclonal antibodies as detection antibodies to establish the ICA. Colloidal gold and polyclonal antibody-colloidal gold complexes were synthesized under optimized conditions.
View Article and Find Full Text PDFSepsis-Induced Cardiomyopathy Secondary to Escherichia coli Sepsis and Intestinal Perforation: A Diagnostic Challenge in a Paediatric Patient.
Cureus
December 2024
Department of Anaesthesiology, Tata Main Hospital, Jamshedpur, IND.
A five-year-old male presented with abdominal pain, fever, vomiting, and constipation. Initial investigations suggested subacute intestinal obstruction. Laparotomy revealed intestinal perforation with peritonitis due to .
View Article and Find Full Text PDFAnalysis of engineered T7 bacteriophages containing genetic sequences encoding antimicrobial peptides.
Front Antibiot
January 2025
Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Center for Biotechnology and Biomedicine, Leipzig University, Leipzig, Germany.
Because of the global spread of multi- and pan-resistant bacteria, there is a need to identify, research, and develop new strategies to combat these pathogens. In a previous proof-of-concept study, we presented an innovative strategy by genetically modifying lytic T7 bacteriophages. We integrated DNA fragments encoding for derivatives of the antimicrobial peptide (AMP) apidaecin into the phage genome to induce the production and release of apidaecin within the T7 infection cycle, thereby also targeting phage-resistant bacteria.
View Article and Find Full Text PDFOne day in Denmark: whole-genome sequence-based analysis of Escherichia coli isolates from clinical settings.
J Antimicrob Chemother
January 2025
Technical University of Denmark, National Food Institute, Kongens Lyngby, Denmark.
Background: WGS can potentially be routinely used in clinical microbiology settings, especially with the increase in sequencing accuracy and decrease in cost. Escherichia coli is the most common bacterial species analysed in those settings, thus fast and accurate diagnostics can lead to reductions in morbidity, mortality and healthcare costs.
Objectives: To evaluate WGS for diagnostics and surveillance in a collection of clinical E.
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!