FIGURE 2 in A phylogenetically distant clade of Nostoc-like (Cyanobacteria) taxa with the description of Reofilinostoc matlalcueyense gen. et sp. nov. from an extreme environment

FIGURE 2. Micrographs of Reofilinostoc matlalcueyense F02 under the light microscopy (LM). (A–B) longitudinal section showing trichomes with intercalary heterocyte (arrow), and the thick yellow periderm (*), also perpendicular and coiled trichomes from field material. (C) Colonies wrapped by mucilaginous sheath. (D-E) trichomes simple with few cells vegetative, and with more than 20 cells long, respectively. (F) trichomes with terminal heterocyte (arrow). (G) Akinete. (H) unequal division of an akinete intro a two vegetative cell and subsequent division. (I) Coiled trichomes with sheath. (B–I) dyed with cresil blue. (C–I) material in culture BG11. Scale bars A= 0 70 μm, B= 30 μm, C= 10 μm, D–I= 5 μm.