Rusteaters

Rusteaters is a colloquial term used to describe organisms that can consume or break down iron and iron compounds, particularly in their metallic form. This phenomenon is primarily driven by the process of microbially influenced corrosion (MIC). Certain types of bacteria, such as sulfate-reducing bacteria (SRB) and iron-oxidizing bacteria, are commonly associated with rusteaters. These microorganisms can metabolize iron or its compounds as part of their life cycle, often producing byproducts like hydrogen sulfide or organic acids that accelerate the corrosion process.

The presence of rusteaters is a concern in various industrial and infrastructure settings. They can contribute to the degradation of pipelines, bridges, ships, and other metal structures, leading to significant economic losses and safety hazards. The environment where rusteaters thrive is typically anaerobic or microaerophilic, with moisture and the presence of iron as essential factors. Detecting and mitigating the effects of rusteaters often involves identifying the specific microbial communities present and implementing biocide treatments or protective coatings. While the term "rusteater" is informal, it accurately reflects the destructive impact these microorganisms can have on iron-based materials. Research continues to explore the metabolic pathways of these organisms and develop more effective control strategies.