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4 results for “Pegethrix”
FIGURE 13. Pegethrix indistincta. A–B in Revision of the Synechococcales (Cyanobacteria) through recognition of four families including Oculatellaceae fam. nov. and Trichocoleaceae fam. nov. and six new genera containing 14 species
FIGURE 13. Pegethrix indistincta. A–B. Double and single-false branching filaments. C. Multiple trichomes coiling in one common sheath. D. Thick and firm sheath observed in mature trichomes. E–F. Hormogonia released from bundles of trichome undergoing rapid disintegration (note necridia). Scale bar 10μm in 1000X magnification.
FIGURE 10. Pegethrix bostrychoides. A. Nodule formation. B in Revision of the Synechococcales (Cyanobacteria) through recognition of four families including Oculatellaceae fam. nov. and Trichocoleaceae fam. nov. and six new genera containing 14 species
FIGURE 10. Pegethrix bostrychoides. A. Nodule formation. B. Existence of multiple trichomes within common sheath. C–G. Variation in the degree of filament coiling, from flexuous to spiral coils. H–I. Double false-branches and single false-branches. J–K. Sheath tightly embraces trichome or expands from trichome. L. Heterogeneity in cell shape and trichome width between young and mature trichomes. Meristematic zone of cell division shown on mature trichome. Scale bar 10μm in 1000X magnification.
FIGURE 12. Pegethrix convoluta. A. Consecutively false-branching filaments. B–C in Revision of the Synechococcales (Cyanobacteria) through recognition of four families including Oculatellaceae fam. nov. and Trichocoleaceae fam. nov. and six new genera containing 14 species
FIGURE 12. Pegethrix convoluta. A. Consecutively false-branching filaments. B–C. Compact nodules formed by rapid cell division in local region of trichomes. D–E. Sheath rarely irregular and stratified, more commonly tightly attached to trichomes. F. Necridia abundant in mature trichomes. Scale bar 10μm in 1000X magnification.
FIGURE 11. Pegethrix olivacea. A–D in Revision of the Synechococcales (Cyanobacteria) through recognition of four families including Oculatellaceae fam. nov. and Trichocoleaceae fam. nov. and six new genera containing 14 species
FIGURE 11. Pegethrix olivacea. A–D. Irregular filament shapes due to uneven cell division events along trichome. E. Single falsebranching filament. F. Nodule formation. G–K. Irregular cell shape and trichome length, hormogonia few-celled, abundant. Scale bar 10μm in 1000X magnification.
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