Abstract
The release of metals in ecosystems results in not only environmental damage, but also harm to the health and quality of human life. This study aims to compare and discuss the research evolution performed worldwide, which made use of the potential of Chromobacterium violaceum for bioremediation of heavy metals. The study consists of a systematic review, limited to research published between 2001 and 2015, using LILACS, PubMed, and SciELO databases. The bioleaching technique was further discussed; gold was the bioremediated substrate most mentioned, and cyanidation was the prevalent phenotypic mechanism. Genetic mechanisms were mentioned in 29.4% of the publications, and among proteins transcribed by C. violaceum 18.3% were hypothetical. The adaptive versatility of C. violaceum reveals its great biotechnological potential on environmental pollution by heavy metals, favoring environmental conservation. However, the high number of hypothetical ORFs (Open Reading Frame) highlights the need for further research.
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