The effect of the introduction of exogenous strain Acidithiobacillus thiooxidans A01 on functional gene expression, structure and function of indigenous consortium during pyrite bioleaching

► Acidithiobacillusthiooxidans was introduced to the indigenous consortium. ► The introduction of At. thiooxidans accelerated the dissolution of pyrite. ► Change of indigenous consortium was tested in genetic, cellular, and community level. ► Change of indigenous consortium structure influences indigenous consortium function. ► Change of gene expression reflects change of structure and function of community.