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enzymatic-mechanisms
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Fast chromium removal by Shewanella sp.: an enzymatic mechanism depending on serine protease
, Article International Journal of Environmental Science and Technology ; Volume 17, Issue 1 , April , 2020 , Pages 143-152 ; Mahmoodi, R ; Mollania, N ; Kheirabadi, M ; Sharif University of Technology
Springer
2020
Abstract
Environmental pollutions with heavy metals pose serious health and ecological risks. Sabzevar in the northeast of Iran has natural chromic mines and then chromium-polluted soils and groundwater. In the present work, the metal-tolerant bacterial strain KR2 was identified as Shewanella sp. following 16S rDNA gene sequence analysis. Bioremediation ability of isolated bacterial from agricultural soils that irrigated by groundwater, Shewanella sp., was evaluated for uptaking of chromium with varying Cr(VI) concentrations from 50 to 500 ppm in aerobic conditions (pH 7.0, 37 °C). The Shewanella sp. strain KR2 showed an obvious heavy metal tolerant in the wide range of heavy metals including: Cr6+,...