Additional file 3: of Repetitive somatic embryogenesis induced cytological and proteomic changes in embryogenic lines of Pseudotsuga menziesii [Mirb.]

Figure S2. Structure of embryonal masses from primary and secondary lines of genotype TD17. A / TD17; B / TD17–1. Trypan blue staining of squashes of fresh EMs; m – meristem of polyembryogenic centers, s – suspensor. Scale bar = 200 μm. (DOCX 178 kb)