Fig. 8

Electron micrographs of different strains grown with or without sabinene treatment. a Cell morphology of BL21(DE3) grown without sabinene; b cell morphology of BL21(DE3) grown with 0.6 g/L sabinene; c cell morphology of XYF(DE3) grown with 0.6 g/L sabinene; d–g cell morphology of WUT1, WUT2, WUT3, and WUT4 grown with 0.6 g/L sabinene, respectively. h–n (magnification of ×80,000) are enlarged images of a–g (magnification of ×30,000), respectively