Iron-Reducing Microbial Communities of the Lake Baikal Low-Temperature Bottom Sediments
- Авторлар: Zakharyuk A.G.1, Ryzhmanova Y.V.1, Avtukh A.N.1, Shcherbakova V.A.1
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Мекемелер:
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences
- Шығарылым: Том 88, № 2 (2019)
- Беттер: 156-163
- Бөлім: Experimental Articles
- URL: https://bakhtiniada.ru/0026-2617/article/view/163902
- DOI: https://doi.org/10.1134/S0026261719020139
- ID: 163902
Дәйексөз келтіру
Аннотация
Psychroactive enrichment cultures reducing anthraquinone 2,6-disulfonate (AQDS) and soluble complexes of ferric iron at 5–20°C were isolated from the samples of Lake Baikal bottom sediments collected at the depths of 404 to 1396 m. Cultivation resulted in production of up to 6 mM Fe(II), which was over 50% of the initial Fe(III) concentration in the medium, and of 5.5 mM AH2QDS (~30% of the initial quinone concentration). The enrichment culture of iron-reducing bacteria St3 used Fe(III) citrate as the terminal electron acceptor, oxidizing formate from 6.5 to 2.0 g L–1 at 15°C. Phylogenetic analysis showed that the initial samples of the Lake Baikal bottom sediments and the enrichments obtained from these samples contained the taxa of classes Alpha- and Betaproteobacteria, which were closely related to bacteria capable of oxidizing aromatic compounds using inorganic electron acceptors, including ferric iron.
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Авторлар туралы
A. Zakharyuk
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: kuran82@mail.ru
Ресей, Pushchino, 142290
Ya. Ryzhmanova
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences
Email: kuran82@mail.ru
Ресей, Pushchino, 142290
A. Avtukh
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences
Email: kuran82@mail.ru
Ресей, Pushchino, 142290
V. Shcherbakova
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences
Email: kuran82@mail.ru
Ресей, Pushchino, 142290
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