Subcellular localization of six thioredoxins and their antioxidant activity and contributions to biological control potential in Beauveria bassiana.

•Beauveria bassiana has six thioredoxin (Trx) homologs localized in different parts of cells.•All six Δtrx mutants are not responsive to several oxidants except menadione.•Only Δtrx2 shows changes in menadione sensitivity, Trx/SOD activity and redox homeostasis.•One or more phenotypes relating to biological control are changed in all Δtrx mutants.