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

Abstract

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.

Microbial community profiles grown on 1020 carbon steel surfaces in seawater-isolated microcosm

“…Representatives of this class were detected sparingly over the period analyzed. Despite the genus Bacillus has been identified only in the 30-and 60-day samples, it is usually present in studies of carbon steel corrosion, especially in marine environments (Wan et al 2017;Guo et al 2019). Similar to the results of Fimicutes, the Bacteroidetes phylum was described in the samples referring to 5, 30, and 60 days of the experiment, having as main representatives the members of the Flavobacteria class.…”

Selective Adsorption of Amino Acids in Crystals of Monohydrocalcite Induced by the Facultative Anaerobic Enterobacter ludwigii SYB1

“…As one of the most extensive processes on the Earth’s surface, microbially induced carbonate precipitation (MICP) plays a key role in biogeochemical cycles of carbon, as well as influences global climate and seawater chemistry ( Lowenstam and Weiner, 1989 ; Li et al, 2019 ). In recent years, more attention has been draw to this topic in view of its potential biological and engineering applications, including: (1) pretreatment of seawater Ca–Mg desalination ( Arias et al, 2017 ; Ansari et al, 2020 ), (2) rust protection of underwater steel and self-repair of building materials ( Achal et al, 2015 ; Bundur et al, 2017 ; Guo et al, 2019 ), (3) bioremediation of heavy metal polluted soils ( Lian et al, 2006 ; Achal et al, 2012 ), (4) fixation of atmospheric CO 2 ( Sharma and Bhattacharya, 2010 ), and (5) bioprecipitation of free hazardous ions ( Zhang et al, 2015 ; Lu et al, 2020 ; Shi C. et al, 2020 ; Shi J. et al, 2020 ; Zhao et al, 2020a ; Wang et al, 2021 ; Zhang et al, 2021 ). Thus, an in-depth understanding of the bioprecipitation mechanism and the formation of the special structure of biominerals is of great importance for the biomimetic design and synthesis of functional materials.…”

Opportunistic interactions on Fe0 between methanogens and acetogens from a climate lake

“…But it is unknown whether any of these species can act as autotrophic acetogens, which is the only possibility in this enrichment. Of these, some Bacillus induced corrosion under nitrate reducing conditions (Wan et al, 2018; Xu et al, 2013), but in other instances Bacillus species inhibited corrosion by forming a passivating film of extracellular polymeric substances and/or calcite (Guo et al, 2019; Li et al, 2019). Corrosion was also inhibited by a Desulfitobacterium that oxidized Fe(III)-minerals to vivanite, forming a protective passivating layer on the metal surface (Comensoli et al, 2017).…”