Paper Search Console

Home Search Page About Contact

Journal Title

Title of Journal: Microb Ecol

Search In Journal Title:

Abbravation: Microbial Ecology

Search In Journal Abbravation:

Publisher

Springer-Verlag

Search In Publisher:

DOI

10.1016/0163-8343(94)90022-1

Search In DOI:

ISSN

1432-184X

Search In ISSN:
Search In Title Of Papers:

Frequency and Diversity of Nitrate Reductase Genes

Authors: L RousselDelif S Tarnawski J Hamelin L Philippot M Aragno N Fromin
Publish Date: 2005/01/11
Volume: 49, Issue: 1, Pages: 63-72
PDF Link

Abstract

A total of 1246 Pseudomonas strains were isolated from the rhizosphere of two perennial grasses Lolium perenne and Molinia coerulea with different nitrogen requirements The plants were grown in their native soil under ambient and elevated atmospheric CO2 content pCO2 at the Swiss FACE Free Air CO2 Enrichment facility Root rhizosphere and nonrhizospheric soil–associated strains were characterized in terms of their ability to reduce nitrate during an in vitro assay and with respect to the genes encoding the membranebound named NAR and periplasmic NAP nitrate reductases so far described in the genus Pseudomonas The diversity of corresponding genes was assessed by PCRRFLP on narG and napA genes which encode the catalytic subunit of nitrate reductases The frequency of nitratedissimilating strains decreased with root proximity for both plants and was enhanced under elevated pCO2 in the rhizosphere of L perenne NAR 54 of strains as well as NAP 49 forms were present in nitratereducing strains 155 of the 439 strains tested harbouring both genes The relative proportions of narG and napA detected in Pseudomonas strains were different according to root proximity and for both pCO2 treatments the NAR form was more abundant close to the root surface and for plants grown under elevated pCO2 Putative denitrifiers harbored mainly the membranebound NAR form of nitrate reductase Finally both narG and napA sequences displayed a high level of diversity Anyway this diversity was correlated neither with the root proximity nor with the pCO2 treatmentThis work was supported by the Swiss National Science Foundation grant numbers 310005589998 and 316820802 We are also grateful to the Swiss National Centre of Competence in Research NCCR “Plant Survival” We thank MarieLaure Heusler for technical assistance Jakob Zopfi and Raymond Flynn for English corrections and Jacqueline Moret for statistical analysis

Keywords:

References

.
Search In Abstract Of Papers:
Other Papers In This Journal:
  1. Characterization of Bacterial Communities in Sediments Receiving Various Wastewater Effluents with High-Throughput Sequencing Analysis
  2. Bacterial Community Dynamics during Bioremediation of Diesel Oil-Contaminated Antarctic Soil
  3. Assessing the Contamination Potential of Freshly Extracted Escherichia coli Biofilm Cells by Impedancemetry
  4. Denitrifying Bacterial Community Composition Changes Associated with Stages of Denitrification in Oxygen Minimum Zones
  5. Is There a Size Limit for Cosmopolitan Distribution in Free-Living Microorganisms? A Biogeographical Analysis of Testate Amoebae from Polar Areas
  6. Vegetation Affects the Relative Abundances of Dominant Soil Bacterial Taxa and Soil Respiration Rates in an Upland Grassland Soil
  7. Epilithic Algae Distribution Along a Chemical Gradient in a Naturally Acidic River, Río Agrio (Patagonia, Argentina)
  8. Distribution of Cren- and Euryarchaeota in Scots Pine Mycorrhizospheres and Boreal Forest Humus
  9. Feasibility of Removing Surface Deposits on Stone Using Biological and Chemical Remediation Methods
  10. Molecular Characterization and Geological Microenvironment of a Microbial Community Inhabiting Weathered Receding Shale Cliffs
  11. Previously Undescribed Plasmids Recovered from Activated Sludge Confer Tetracycline Resistance and Phenotypic Changes to Acinetobacter oleivorans DR1
  12. Morphological and Phylogenetic Analysis of Fusarium solani Species Complex in Malaysia
  13. Culturable Airborne Bacteria in Outdoor Environments in Beijing, China
  14. Study of the Degradation Activity and the Strategies to Promote the Bioavailability of Phenanthrene by Sphingomonas paucimobilis Strain 20006FA
  15. Ecological Characterisation of the Colonic Microbiota in Arctic and Sub-Arctic Seals
  16. Isolation and Identification of the Microbiota of Danish Farmhouse and Industrially Produced Surface-Ripened Cheeses
  17. Effects of Experimental Lead Pollution on the Microbial Communities Associated with Sphagnum fallax (Bryophyta)
  18. Habitat Heterogeneity and Associated Microbial Community Structure in a Small-Scale Floodplain Hyporheic Flow Path
  19. Abundance of Class 1 Integron-Integrase and Sulfonamide Resistance Genes in River Water and Sediment Is Affected by Anthropogenic Pressure and Environmental Factors
  20. Patterns of Multi-Antibiotic-Resistant Escherichia Coli from Streams with No History of Antimicrobial Inputs
  21. Does the Reproductive Strategy Affect the Transmission and Genetic Diversity of Bionts in Cyanolichens? A Case Study Using Two Closely Related Species
  22. Comparative Transcriptomic Analysis of the Response of Dunaliella acidophila (Chlorophyta) to Short-Term Cadmium and Chronic Natural Metal-Rich Water Exposures
  23. Strong Indirect Effects of a Submersed Aquatic Macrophyte, Vallisneria americana , on Bacterioplankton Densities in a Mesotrophic Lake
  24. Erratum to: Influence of Deglaciation on Microbial Communities in Marine Sediments off the Coast of Svalbard, Arctic Circle
  25. Microbial Characterization during the Early Habitation of the International Space Station
  26. 16S rRNA and As-Related Functional Diversity: Contrasting Fingerprints in Arsenic-Rich Sediments from an Acid Mine Drainage
  27. 16S rRNA and As-Related Functional Diversity: Contrasting Fingerprints in Arsenic-Rich Sediments from an Acid Mine Drainage
  28. Methanogen Colonisation Does Not Significantly Alter Acetogen Diversity in Lambs Isolated 17 h After Birth and Raised Aseptically
  29. Changes in Communities of Fusarium and Arbuscular Mycorrhizal Fungi as Related to Different Asparagus Cultural Factors
  30. Pond Sediment Magnetite Grains Show a Distinctive Microbial Community
  31. Response of Benthic Protozoa and Thraustochytrid Protists to Fish Farm Impact in Seagrass ( Posidonia oceanica ) and Soft-Bottom Sediments
  32. Effects of Species Diversity on Establishment and Coexistence: A Phylloplane Fungal Community Model System
  33. Amazonian Dark Earth and Plant Species from the Amazon Region Contribute to Shape Rhizosphere Bacterial Communities
  34. Eggshell Bacterial Load Is Related to Antimicrobial Properties of Feathers Lining Barn Swallow Nests
  35. Comparison of Archaeal and Bacterial Diversity in Methane Seep Carbonate Nodules and Host Sediments, Eel River Basin and Hydrate Ridge, USA
  36. Desert Perennial Shrubs Shape the Microbial-Community Miscellany in Laimosphere and Phyllosphere Space
  37. Ecological Occurrence of Gluconacetobacter diazotrophicus and Nitrogen-fixing Acetobacteraceae Members: Their Possible Role in Plant Growth Promotion
Search Result: