Characterization of a high cadmium accumulating soil bacterium, Cupriavidus sp. WS2

作者：Shi, Zunji; Zhang, Zhengfeng; Yuan, Meng; Wang, Song; Yang, Mei; Yao, Qi; Ba, Wanni; Zhao, Jin; Xie, Bo^*

来源：Chemosphere, 2020, 247: 125834.

DOI：10.1016/j.chemosphere.2020.125834

• Cadmium-resistant bacteria
• Bioremediation
• Nanoparticles

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.

• 单位
  中国科学院