A New Haloalkaliphilic Member of the Genus Salisediminibacterium Capable of Efficient Chromate Oxidation

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A new haloalkaliphilic member of the genus Salisediminibacterium (family Bacillaceae) with high chromate-reducing activity in a broad range of conditions was isolated. Reduction efficiency after 3 days was up to 99% at initial Cr(VI) concentrations 15 and 100 mg/L for mineral and organic media, respectively. Effect of organic matter on the rate of chromate reduction was shown. The isolate MB1000 differed from the presently described members of the genus Salisediminibacterium in its physiological characteristics.

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作者简介

A. Ignatenko

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

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Email: khijniaktv@yandex.ru
俄罗斯联邦, Moscow, 119071

T. Khijniak

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Email: khijniaktv@yandex.ru
俄罗斯联邦, Moscow, 119071

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2. Fig. 1. The position of the MB1000 strain on the phylogenetic tree of representatives of the Bacilliaceae family. The phylogenetic tree was constructed using the Neighbor-Joining method using bootstrap analysis for 100 alternative phylogenetic trees. Bootstrap analysis values less than 50% are hidden.

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3. Fig. 2. X-ray microanalysis of mineral sediment.

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