Characterization of a high cadmium accumulating soil bacterium, Cupriavidus sp. WS2. (May 2020)

• Record Type: Journal Article
• Authors: Shi, Zunji; Zhang, Zhengfeng; Yuan, Meng; Wang, Song; Yang, Mei; Yao, Qi; Ba, Wanni; Zhao, Jin; Xie, Bo
• Is Part Of: Chemosphere. Volume 247(2020)
• Publication Date: 2020-05
• Subjects: Cadmium-resistant bacteria -- Bioremediation -- Nanoparticles; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2020.125834
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Cadmium (Cd) is one of the most harmful heavy-metals, its accumulation in crops can lead to severe ecological and healthy problems. Bioremediation using microbes to remove Cd or reduce the bioavailability of Cd is considered as a promising approach for Cd pollution control. Here, we described the isolation and characterization of a high Cd-accumulating bacterial strain, Cupriavidus sp. WS2, from the heavy-metals contained soil at the Wuhan Iron and Steel Company area. WS2 can survive under the high Cd conditions and immobilize Cd by biosynthesizing intracellular Cd-containing nanoparticle inclusions. In the co-inoculation test WS2 also significantly decreased the accumulation of Cd in rice seedlings. All our results suggested that Cupriavidus sp. WS2 may harbor a great potential for the bioremediation applications of Cd pollution. Highlights: High Cd-resistant bacterial strains have been isolated from the Wuhan Iron and Steel Company area. Cupriavidus sp. WS2 can form intracellular Cd-containing nanoparticle inclusions under the high Cd conditions. Cupriavidus sp. WS2 significantly decreased the accumulation of Cd in rice seedlings.