Frontiers in Microbiology (May 2019)

Bacillus subtilis Inhibits Vibrio natriegens-Induced Corrosion via Biomineralization in Seawater

  • Zhangwei Guo,
  • Shuai Pan,
  • Tao Liu,
  • Qianyu Zhao,
  • Yanan Wang,
  • Na Guo,
  • Xueting Chang,
  • Tong Liu,
  • Yaohua Dong,
  • Yansheng Yin

DOI
https://doi.org/10.3389/fmicb.2019.01111
Journal volume & issue
Vol. 10

Abstract

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The marine bacterium, Vibrio natriegens, grows quickly in a marine environment and can significantly accelerate the corrosion of steel materials. Here, we present an approach to inhibit V. natriegens-induced corrosion by biomineralization. The corrosion of steel is mitigated in seawater via the formation of a biomineralized film induced by Bacillus subtilis. The film is composed of extracellular polymeric substances (EPS) and calcite, exhibiting stable anti-corrosion activity. The microbial diversity and medium chemistry tests demonstrated that the inhibition of V. natriegens growth by B. subtilis was essential for the formation of the biomineralized film.

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