Affiliation:
1. Department of Microbiology, University of Hawaii, Honolulu, Hawaii 96822
Abstract
Free-living soybean rhizobia and
Bradyrhizobium
spp. (lupine) have the ability to catabolize ethanol. Of the 30 strains of rhizobia examined, only the fast- and slow-growing soybean rhizobia and the slow-growing
Bradyrhizobium
sp. (lupine) were capable of using ethanol as a sole source of carbon and energy for growth. Two strains from each of the other
Rhizobium
species examined (
R. meliloti, R. loti
, and
R. leguminosarum
biovars
phaseoli, trifolii
, and
viceae
) failed to grow on ethanol. One
Rhizobium fredii
(fast-growing) strain, USDA 191, and one (slow-growing)
Bradyrhizobium japonicum
strain, USDA 110, grew in ethanol up to concentrations of 3.0 and 1.0%, respectively. While three of the
R. fredii
strains examined (USDA 192, USDA 194, and USDA 205) utilized 0.2% acetate, only USDA 192 utilized 0.1%
n
-propanol. None of the three strains utilized 0.1% methanol, formate, or
n
-butanol as the sole carbon source.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
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5. Diagnostic features in the characterization of the root-nodule bacteria of legumes;Graham P. H.;Plant Soil,1964
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