ISSN:
1573-5036
Keywords:
Aromatic degradation
;
Bacteria
;
Nitrogen fixation
;
Phenolics
;
Physiology
;
Soil
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary A microaerobic diazotrophic bacterium tentatively identified as aPseudomonas species was isolated from a forest soil. Its nitrogenase (C2H2 reduction) activity in liquid medium was significantly supported by phenolic compounds when compared with glucose-, mannitol- or malate-supported activity. The utilization of phenolics was dependent on substrate induction and the appropriate oxygen concentration. At a pO2 of 0.05 protocatechuate was a better carbon source for N2 fixation than glucose. In the case ofLignobacter protocatechuate was a better carbon source for N2 fixation than glucose at pO2 0.2 but not at pO2 0.05. It is suggested that certain monomeric phenols can support nitrogenase activities in many carbon-limited soil environments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02277393
