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Natural resources

Breakthrough in Space-Based Bioremediation of Mining Soil Pollution

Strategic Insights

— 1 min read

Researchers from Beijing Forestry University have made significant progress in using space-based techniques to enhance the antimony resistance of bacteria, potentially paving the way for a new approach to bioremediation of mining soil pollution. By carrying out induced mutagenesis of Raoultella sp. 64 on the Shenzhou spacecraft, the researchers isolated a mutant strain, Raoultella sp. D9, with significantly enhanced antimony resistance. The research team sequenced the whole genomes of both Raoultella sp. 64 and Raoultella sp. D9, revealing the genomic information for the bacterium and identifying differential functional genes involved in the increased antimony resistance.

Key Takeaways:

  • The National Key Research And Development Program of China and the National Natural Science Foundation of China supported the research.
  • The researchers isolated a mutant strain, Raoultella sp. D9, with significantly enhanced antimony resistance through induced mutagenesis on the Shenzhou spacecraft.
  • Comparative genomic analysis identified differential functional genes involved in the increased antimony resistance.
  • The adsorption conditions for Sb(III) were optimized and refined using Fourier transform infrared spectroscopy (FTIR).
  • The mutant strain D9 exhibited better biosorption capacity compared to strain 64.
  • FTIR studies showed that key functional groups, including -OH, C-N, C-H, and C-O, are likely to have participated in Sb(III) biosorption.

Statistics:

  • 13(4):880 is the issue number and page number of the journal article "Induced Mutagenesis and Comparative Genomics of * * Raoultella* * sp. 64 for Enhanced Antimony Resistance and Biosorption" in Microorganisms.
  • 2025 is the year the research was conducted.
  • The research involved the transportation of Raoultella sp. 64 into space aboard the Shenzhou spacecraft for space breeding.
  • The whole genomes of Raoultella sp. 64 and mutant strain Raoultella sp. D9 were sequenced.

Sources:

  • NewsRx. Researchers from Beijing Forestry University Discuss Findings in Spacecraft (Induced Mutagenesis and Comparative Genomics of * * Raoultella* * sp. 64 for Enhanced Antimony Resistance and Biosorption). Health & Medicine Week. May 16, 2025; p 5999.
  • Induced Mutagenesis and Comparative Genomics of * * Raoultella* * sp. 64 for Enhanced Antimony Resistance and Biosorption. Microorganisms, 2025, 13(4):880. (Microorganisms - http://www.mdpi.com/journal/microorganisms)
  • MDPI AG is the publisher of Microorganisms.

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