Thiosulphate Oxidation in Thiobacillus
نویسنده
چکیده
bacterium Thiobacillus X. A fifth fraction (acidic fraction) contained two additional cytochrome components with x bands at 550 and 557 msi respectively in the reduced state. 2. All the cytochromes appear to be ofthe c type, are labile to heat and acid and do not combine with carbon monoxide. They are auto-oxidizable to varying degrees. 3. Cytochromes 550 (1) and 557 (1) are basic, and are adsorbed on to Amberlite IRC-50 at pH 7. Their Eo values at pH 7 are +0 20 and +0-15vrespectively. Cytochrome 553-5 is acidic but is adsorbed on to Amberlite at pH 5. Its E' value is + 0 21v. 4. The cytochromes of the acidic fraction are not adsorbed on IRC-50. Otherwise their properties are very similar to those of cytochromes 550 (1) and 557 (1) respectively. 5. Addition of thiosulphate to whole cells causes a rapid reduction of cytochrome components with a peaks at 549-558 mu and 562 m,.
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