Biological Nitrogen Removal Database

A manually curated data resource for microbial nitrogen removal


Detailed information

Microorganism

Pseudomonas stutzeri strain XL-2

Taxonomy
  • Phylum : Proteobacteria
  • Class : Gammaproteobacteria
  • Order :Pseudomonadales
  • Family : Pseudomonadaceae
  • Genus : Pseudomonas

Electron Acceptor

NO3-

Electron Donor

nan

Information about Article

Reference:Zhao et al., 2018

Title:Characterization of an Aerobic Denitrifier Pseudomonas Stutzeri Strain XL-2 to Achieve Efficient Nitrate Removal

Pubmed ID:29197780

Pubmed link:Link

Full research link:Link

Abstract: An aerobic denitrifier was newly isolated and identified as Pseudomonas stutzeri strain XL-2. Strain XL-2 removed 97.9% of nitrate with an initial concentration about 100 mg/L. Nitrogen balance indicates that 12.4% of the initial nitrogen was converted to N2O, and 62.4% was converted to N2. Single factor experiments indicate that the optimal conditions for nitrate removal were C/N ratio of 10, temperature of 30 °C and shaking speed of 120 rpm. Sequence amplification indicates that the denitrification genes of napA, nirS, norB and nosZ were present in strain XL-2. Combined with nitrogen balance, strain XL-2 presents the metabolic pathway of NO3- → NO2- → NO → N2O → N2 under aerobic conditions. The expression of napA and nirS might be responsible for the tolerance of dissolved oxygen by strain XL-2 during denitrification process.

Biological Nitrogen Removal Database