A NEW SPECIES OF HYDROGEN-UTILIZING BACTERIUM

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Abstract
A new species of hydrogen-utilizing bacterium was isolated from natural sources. This organism is gram-negative, rod-shaped, 0.6 .times. 0.8-2.0 .mu.m in size and motile with peritrichous flagella. The content of guanine plus cytosine in the DNA of this organism is 70.2 mol%. The organism is facultatively autotrophic. Carbohydrates are scarcely assimilated by this organism and only fructose is assimilated. Organic acids are assimilated well. Based on these distinctive characteristics, this hydrogen-utilizing bacterium was named Alcaligenes hydrogenophilus sp. nov.