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SUMMARY: A new thermophilic thiobacillus (G+C = 66·2 mol %) has been isolated in pure culture. The temperature optimum for growth was 50°. Heterotrophic growth occurred on nutrient broth, but not on single organic compounds. No α-keto- glutarate dehydrogenase was present but unrestricted acetate incorporation took place via the glyoxylate cycle.
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Williams et al. (1972) studied this question.
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