ISOLATION AND CHARACTERIZATION ACIDITHIOBACILLUS FERROOXIDANS AND ACIDITHIOBACILLUS FERRIVORANS FROM THE ARSENOPYRITE FLOTATION CONCENTRATE IN KAZAKHSTAN (4-10)

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Дата публикации статьи в журнале: 2020/07/17
Название журнала: Восточно Европейский Научный Журнал, Выпуск: 58, Том: 3, Страницы в выпуске: 4-10
Автор: A.K. Shibaуeva
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Автор: K.N. Seitkamal
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Автор: N.K. Zhappar
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Анотация: Seven arsenic resistant ferrous oxidizers were isolated from Aksu and Bestobe mine samples. The isolates are a rod-shaped, motile Gram-negative bacterium. Characterization of these isolates was done using standart microbiological, biochemical and phylogenetic comparative methods. The morphological, biochemical, physiological analysis based on 16S rRNA gene sequence showed that the strains 385A, 377B, 536B, 538J, 537C are most closely related to Acidithiobacillus ferrivorans, the strains 383A and 393B identified as Acidithiobacillus ferrooxidans and Acidithiobacillus ferriphilus, respectively. The results showed, in the flask experiments all the seven isolates at 8mM of arsenic were able to oxidize ferrous iron to ferric iron. Isolate 383A showed high resistance to As concentration of 64mM. This is very promising results since, the native isolated strains especially strain 383A can be used in bioleaching and bioremoval of As processes.
Ключевые слова: Bioleaching   Acidithiobacillus ferrooxidans   Acidithiobacillus ferrivorans   biooxidation of ferrous iron  
Данные для цитирования: A.K. Shibaуeva, K.N. Seitkamal, N.K. Zhappar . ISOLATION AND CHARACTERIZATION ACIDITHIOBACILLUS FERROOXIDANS AND ACIDITHIOBACILLUS FERRIVORANS FROM THE ARSENOPYRITE FLOTATION CONCENTRATE IN KAZAKHSTAN (4-10). Восточно Европейский Научный Журнал. Биологические науки. 2020/07/17; 58(3):4-10.

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