Characterization of Nitrogen-Fixing Bacteria Containing Molybdenum-Independent Nitrogenases from Diverse Natural Environments

2005 ◽  
pp. 179-180
Author(s):  
D. Betancourt ◽  
T. M. Loveless ◽  
P. E. Bishop
Keyword(s):  
Natural Environments ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria

scholarly journals Characterization of free nitrogen fixing bacteria of the genus Azotobacter in organic vegetable-grown Colombian soils

2011 ◽  
Vol 42 (3) ◽  
pp. 846-858 ◽  
Author(s):  
Diego Javier Jiménez ◽  
José Salvador Montaña ◽  
María Mercedes Martínez
Keyword(s):  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria

Polyhydroxyalkanoate analysis inAzospirillum brasilense

1995 ◽  
Vol 41 (13) ◽  
pp. 73-76 ◽  
Author(s):  
Robin Itzigsohn ◽  
Oded Yarden ◽  
Yaacov Okon
Keyword(s):  
Azospirillum Brasilense ◽  
Bacterial Species ◽  
Carbon Sources ◽  
Dry Mass ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Qualitative And Quantitative ◽  
Alkanoic Acids ◽  
Quantitative Analyses

The considerable industrial interest in the qualitative and quantitative production of polyhydroxyalkanoates in microorganisms has led to the characterization of those synthesized in the nitrogen-fixing bacteria Azospirillum brasilense and Azotobacter paspali. In contrast to some other bacterial species, Azospirillum brasilense does not produce copolymers of hydroxyalkanoates when grown under the different carbon sources assayed, namely n-alkanoic acids, hydroxyalkanoates, and sugars with varying C:N ratios. Rather, only homopolymers of polyhydroxybutyrate were detected, comprising up to 70% of the cell dry mass. No copolymers were detected in Azotobacter paspali. Quantitative analyses of poly(β-hydroxybutyrate) are also presented.Key words: Azospirillum spp., Azotobacter paspali, polyhydroxyalkanoate analysis, PHA, PHB.

Isolation and characterization of nitrogen-fixing bacteria of the genus Azospirillum from the soil of a Sphagnum peat bog

Microbiology ◽  
2007 ◽  
Vol 76 (1) ◽  
pp. 93-101 ◽  
Author(s):  
E. V. Doroshenko ◽  
E. S. Boulygina ◽  
E. M. Spiridonova ◽  
T. P. Tourova ◽  
I. K. Kravchenko
Keyword(s):  
Peat Bog ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Sphagnum Peat ◽  
Isolation And Characterization

scholarly journals Enumeration and characterization of nitrogen-fixing bacteria in an eelgrass (Zostera marina) bed

1989 ◽  
Vol 18 (3) ◽  
pp. 249-259 ◽  
Author(s):  
Wung Yang Shieh ◽  
Usio Simidu ◽  
Yoshiharu Maruyama
Keyword(s):  
Zostera Marina ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria

Characterization of nitrogen-fixing bacteria isolated from field-grown barley, oat, and wheat

2011 ◽  
Vol 49 (4) ◽  
pp. 525-534 ◽  
Author(s):  
Anastasia Venieraki ◽  
Maria Dimou ◽  
Eleni Vezyri ◽  
Io Kefalogianni ◽  
Nikolaos Argyris ◽  
...  
Keyword(s):  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria

scholarly journals Isolation of Nitrogen-Fixing Bacteria Containing Molybdenum-Independent Nitrogenases from Natural Environments

1999 ◽  
Vol 65 (9) ◽  
pp. 4223-4226 ◽  
Author(s):  
Telisa M. Loveless ◽  
J. Royden Saah ◽  
Paul E. Bishop
Keyword(s):  
Natural Environments ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria

ABSTRACT Seven diazotrophs that grow well under Mo-deficient, N2-fixing conditions were isolated from a variety of environments. These isolates fall in the γ subdivision of the classProteobacteria and have genes that encode the Mo nitrogenase (nitrogenase 1) and the V nitrogenase (nitrogenase 2). Four of the isolates also harbor genes that encode the iron-only nitrogenase (nitrogenase 3).

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