Document Detail

Pseudacidovorax intermedius NH-1, a novel marine nitrogen-fixing bacterium isolated from the South China Sea.
MedLine Citation:
PMID:  22806723     Owner:  NLM     Status:  Publisher    
We have taxonomically and phylogenetically characterized a novel nitrogen-fixing bacterial strain, NH-1, which was recently isolated from surface sediments of the South China Sea. The presence of the nifH gene was determined by PCR amplification. The strain NH-1 was found to belong to the genus Pseudacidovorax based on phenotypic characterization, 16S rDNA sequencing, G+C content and DNA-DNA hybridization. Isolate NH-1 was identified as Pseudacidovorax intermedius. In addition, we investigated the links between environmental factors and the nitrogenase activity of NH-1. We found that the nitrogen fixation capacity of NH-1 varied strongly when cells were grown with different ammonium ion and oxygen concentrations, amino acids and carbohydrates. This is the first report of the isolation of Pseudacidovorax from the ocean and the first study to explore the effects of different culture conditions on the nitrogenase activities of the isolate. This study provides evidence that marine nitrogen-fixing microorganisms are far more diverse than currently recognized.
Li-Hong Zhang; San-Feng Chen
Related Documents :
11581253 - Evidence for a novel role of copper-zinc superoxide dismutase in zinc metabolism.
16097733 - Preliminary notes on yeasts associated with necrotic cactus stems from different locali...
15555873 - Role of efflux mechanisms on fluoroquinolone resistance in streptococcus pneumoniae and...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-6
Journal Detail:
Title:  World journal of microbiology & biotechnology     Volume:  -     ISSN:  1573-0972     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-7-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9012472     Medline TA:  World J Microbiol Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing, 100193, China,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Green coconut fiber: a novel carrier for the immobilization of commercial laccase by covalent attach...
Next Document:  Interaction of lactic acid bacteria with metal ions: opportunities for improving food safety and qua...