✦ LIBER ✦

Characteristics of a moderately thermophilic and acidophilic iron-oxidizingThiobacillus

✍ Scribed by James A. Brierley; Paul R. Norris; Donovan P. Kelly; Norman W. Roux

Book ID: 104788950
Publisher: Springer
Year: 1978
Tongue: English
Weight: 477 KB
Volume: 5
Category: Article
ISSN: 1432-0614
DOI: 10.1007/bf00504717

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✦ Synopsis

Tbiobacillus TH1 is an acidophilic chemolithotrophic heterotroph growing at temperatures up to about 50oc on media containing ferrous iron or pyrite when supplemented with yeast extract or glutathione. Virtually no carbon dioxide fixation occurred during growth on iron with yeast extract. Its DNA contains 48 mol % guanine + cytosine. The organism effects the thermophilic leaching of metals from pyrite, chalcopyrite, CuS, and copper concentrates. Oxidation of soluble ferrous iron at pH 1.6 was competitively inhibited by ferric iron and had a K m of 7.3 mM FeSO4.

There have been several reports of rod-shaped bacteria occurring in acidic, thermal springs (

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