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21 results for “Gelidiales”
FIGURE 5 in Morphological and molecular characterization of two species of Gelidium (Gelidiales, Rhodophyta) from Mexico: G. nayaritense sp. nov. and the new record of G. sanyaense
FIGURE 5. Vegetative features of Gelidium sanyaense from Mexico. A–B. Thallus (FCME 10892). Scale = 0.2 mm. C. Apical cell (AP). Scale = 50 µm. D. Transvers section of erect branch with internal rhizoidal filaments (RHI). Scale = 40 µm. E. Enlargement of Fig. 5D. Scale = 25 µm.
FIGURE 4 in Morphological and molecular characterization of two species of Gelidium (Gelidiales, Rhodophyta) from Mexico: G. nayaritense sp. nov. and the new record of G. sanyaense
FIGURE 4. Reproductive features of Gelidium nayaritense sp. nov. A. Tetrasporangial branch with tetrasporangial sorus (TS). Scale = 400 µm. B. Tetrasporangial sorus with steril margin (EM) Scale = 100µm. C. Tetrasporangial sorus with tetrasporangia (TE). Scale = 100 µm. D. Cruciately divided tetrasporangia (TE). Scale = 40 µm.
FIGURE 1 in Morphological and molecular characterization of two species of Gelidium (Gelidiales, Rhodophyta) from Mexico: G. nayaritense sp. nov. and the new record of G. sanyaense
FIGURE 1. Maximum-likelihood tree inferred from rbcL sequences of Gelidium. ML bootstrap and Bayesian posterior probabilities values are shown at branches. Bold letters indicate newly generated sequences in this study. * indicates the holotype.
FIGURE 3 in Morphological and molecular characterization of two species of Gelidium (Gelidiales, Rhodophyta) from Mexico: G. nayaritense sp. nov. and the new record of G. sanyaense
FIGURE 3. Vegetative features of Gelidium nayaritense sp.nov. A. Holotype (FCME 10875). Scale =0.2 mm. B. Paratype (FCME 10889). Scale = 0.2 mm. C. Stolon (ST), haptera (H). Scale = 100 µm. D. Stolon (ST), haptera (H) and rhizoids (RI). Scale = 50 µm. E. Apical cell. Scale = 100 µm. F. Enlargement of Fig. 3E. Scale = 50 µm. G. Transvers section of erect branch. Scale = 40 µm. H. Enlargement of Fig. 3G, with internal rhizoidal filaments (RHI). Scale = 25 µm.
FIGURE 2 in Morphological and molecular characterization of two species of Gelidium (Gelidiales, Rhodophyta) from Mexico: G. nayaritense sp. nov. and the new record of G. sanyaense
FIGURE 2. Maximum-likelihood tree inferred from COI-5P sequences of Gelidium. ML bootstrap and Bayesian posterior probabilities values are shown at branches. Bold letters indicate newly generated sequences in this study. * indicates the holotype.
FIGURES 20–26 in Parviphycus bompardii sp. nov. and P. albertanoae (Gelidiales, Rhodophyta), two species misidentified as Gelidiella ramellosa in the Mediterranean Sea
FIGURES 20–26. Mediterranean herbarium specimens of Parviphycus albertanoae, previously misidentified as Gelidiella ramellosa. Figs 20–23. Herbarium specimens (MNHN! PC-PC0167206) from Kerkennah, Tunisia. Fig. 20. Herbarium sheet. Scale bar = 2.5 cm. Fig. 21. Apex of an upright branch of a specimen showing the distichous pattern of division of the subapical cells. Scale bar = 30 μm. Fig. 22. Transverse section of a compressed upright branch; five cells (axial and periaxials) are aligned along the major axis in an evident row. Scale bar = 27 μm. Fig. 23. Tetrasporangial sorus with tetrasporangia regularly arranged in transverse parallel rows (four per row). Scale bar = 180 μm. Figs 24–26. Herbarium specimens from the Cheradi Islands (CAT 1270). Fig. 24. Habit. Scale bar = 3 mm. Fig. 25. Transverse section of an erect axis. Scale bar = 17 μm. Fig. 26. Detail of a tetrasporangial sorus. Scale bar = 50 μm.
FIGURES 1–7 in Parviphycus bompardii sp. nov. and P. albertanoae (Gelidiales, Rhodophyta), two species misidentified as Gelidiella ramellosa in the Mediterranean Sea
FIGURES 1–7 Acrocarpus spinescens (Genoa, Italy), Erbario Crittogamico Italiano ser. II, No. 175. Fig. 1. Herbarium specimen held in SIENA, vegetative, referable to Gelidium crinale. Habit. Scale bar = 0.6 cm. Fig. 2. Refractive internal rhizoidal filaments observed in polarized light. Scale bar = 120 μm. Fig. 3. Brush-like hapteron. Scale bar = 150 μm. Fig. 4. Herbarium specimen held in BI. A). Vegetative thallus referable to Gelidium crinale. B). Vegetative thallus referable to Parviphicus albertanoae. Scale bar = 0.6 cm. Fig. 5. Herbarium specimen held in FI designated as holotype of Parviphycus bompardii sp. nov. (FI! 5607). Scale bar = 0.6 cm. Fig. 6. Stichidium-like tetrasporangial branchlets (FI! 5607). Scale bar = 0.4 cm. Fig. 7. Tetrasporangial sorus with tetrasporangia regularly arranged in chevrons (out of focus on purpose) (FI! 5607). Scale bar = 120 μm.
FIGURES 8–19 in Parviphycus bompardii sp. nov. and P. albertanoae (Gelidiales, Rhodophyta), two species misidentified as Gelidiella ramellosa in the Mediterranean Sea
FIGURES 8–19. Parviphycus bompardii sp. nov.. Fig. 8. Paratype (CAT! 71) (Castelluccio, Syracuse, Sicily). Scale bar = 3 mm. Fig. 9. Paratype (BI! 38467) (Mola di Bari, Bari, Apulia). Scale bar = 4 mm. Fig. 10. Apical part of an erect axis covered by hairs (paratype CAT! 71). Scale bar = 155 μm. Fig. 11. Apex of an upright branch showing the distichous pattern of division of the subapical cells (isoparatype BI! 38466). Scale bar = 30 μm. Fig. 12. Irregularly arranged outermost cortical cells in surface view (paratype CAT! 71). Scale bar = 8 μm. Fig. 13. Transverse section of a compressed upright branch; seven cells (axial and periaxials) are aligned along the major axis in an evident row (paratype BI! 38467). Scale bar = 50 μm. Fig. 14. Longitudinal section of an erect axis: elongated axial and periaxial filaments composing the medullary region are well distinct from the isodiametric subcortical cells (paratype BI! 38467). Scale bar = 50 μm. Fig. 15. Apical and lateral tetrasporangial sori inserted at 90º on the axes (paratype BI! 38467). Scale bar = 650 μm. Fig. 16. Stichidium-like tetrasporangial branchlets constricted at their bases and shortly stalked (paratype BI! 38467). Scale bar = 230 μm. Fig. 17. Tetrasporangial sorus with tetrasporangia regularly arranged in chevrons (6 per row) and a steril margin (paratype CAT! 71). Scale bar = 100 μm. Fig. 18. An empty sorus in surface view: in the gaps of the outer cortex the tetrasporangium basal cells are visible (arrow). Regenerated tetrasporocysts (arrowhead) (paratype BI! 38467). Scale bar = 60 μm. Fig. 19. Longitudinal section of tetrasporangial sorus along the medullary row of axial and periaxial filaments forming a cubic-mesh network (paratype BI! 38467). Scale bar = 60 μm.
FIGURE 5 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 5. Habit of the Gelidiaceae species. A–B. Gelidium crinale (A:SP469061, B:SP469067). Scale bar = 1 cm. C. Gelidium floridanum (SP469068). Scale bar = 2 cm. D. Gelidium lineare (SP469091). Scale bar = 1 cm. E. Gelidium microdonticum (SP469070). Scale bar = 0.5 cm.
FIGURE 6. A–D. Gelidium crinale. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 6. A–D. Gelidium crinale. A. Detail of the apical portion showing the prominent apical cell (arrow) (SP469067). Scale bar = 25 μm. B. Cross section of the middle region of the main branch, showing abundant rhizines between medulla and inner cortex (SP469061). Scale bar = 20 μm. C. Tetrasporangial branch (SP469061). Scale bar = 250 μm. D. Cross section of the tetrasporangial branch, showing tetrasporangia and presence of sterile margin (SP469061). Scale bar = 100 μm. E–J. Gelidium floridanum (SP469068). E. Detail of the apical portion showing the apical cell (arrow). Scale bar = 25 μm. F. Cross section of the middle region of the main branch showing rhizines in the medullary region. Scale bar = 20 μm. G. Tetrasporangial branch. Scale bar = 250 μm. H. Cross section of the tetrasporangial branch, showing sterile margin. Scale bar = 100 μm. I. Female gametophyte branches with cystocarps. Scale bar = 2 mm. J. Cross section of bilocular cystocarp showing carposporangia produced in both sides. Scale bar = 100 μm.
FIGURE 2 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 2. Bayesian inference (BI) phylogenetic tree from the concatenated datasets (rbcL, cox1) of the Gelidiellaceae and Gelidiaceae. A posterior probability values (higher than 0.8) and Maximum Likelihood (ML) Bootstrap values for 1000 replicates (higher than 50) are marked on the branches. Sequences of Brazilian specimens are in bold. Sequences with '*' were genereted in this study. GenBank accession numbers are in brackets followed by the collection site.
FIGURE 1. cox1 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 1. cox1 Neighbor-Joining tree representing specimens of Gelidiales from Brazil. Bootstrap values for 2000 replicates are represented on the branches (only when higher than 60). Sequences of Brazilian specimens are in bold. Sequences with '*' were genereted in this study. GenBank accession numbers are in brackets followed by the collection site.
FIGURE 9 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 9. Gelidium calidum Jamas, Iha, M.T. Fujii sp. nov. (SP469074) A. Detail of the apical portion of the branch showing prominent apical cell (arrow). Scale bar = 25 μm. B. Cross section in the middle region of the vegetative branch. Scale bar = 50 μm. C. Stoloniferous branch with brush-like holdfast. Scale bar = 250 μm. D. Cross section of stoloniferous branch showing disorganized rhizoidal filaments produced by the internal cortical cells. Scale bar = 25 μm. E. Detail of the tetrasporangial branch. Scale bar = 250 μm. F. Cross section of tetrasporangial branch showing absence of sterile margin. Scale bar = 100 μm. G. Detail of female gametophyte branch with cystocarp. Scale bar = 250 μm. H. Cross section of the mature cystocarp with carposporangia produced in both sides of locule. Scale bar = 25 μm.
FIGURE 8. A–C in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 8. A–C. Variation in gross morphology for Gelidium calidum Jamas, Iha, M.T. Fujii sp. nov. in Brazil. Scale bar = 1 cm. A–B. Abundantly branched (SP469073, SP469072). C. Slightly branched (SP469074).
FIGURE 7. A–F. Gelidium lineare. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 7. A–F. Gelidium lineare. A. Detail of the apical portion showing the apical cell between two lobes (SP469087). Scale bar = 25 μm. B. Cross section of the middle region of the the main branch (SP469087). Scale bar = 100 μm. C. Detail of tetrasporangial branch (SP469091). Scale bar = 250 μm. D. Cross section of tetrasporangial branch, showing cruciately divided tetrasporangia (SP469091). Scale bar = 100 μm. E. Detail of male gametophyte branches, which may have more than one sorus per branch (SP469087). Scale bar = 500 μm. F. Cross section of male gametophyte branch, showing spermatia originated by transverse divisions (arrow) of elongated outer cortical cells (SP469087). Scale bar = 20 μm. G–K. Gelidium microdonticum (SP469070). G. Detail of the apical portion showing the apical cell between two lobes. Scale bar = 100 μm. H. Cross section of the middle region of the the main branch. Scale bar = 100 μm. I. Detail of the thallus, showing abundant rhizines in the medullary region. Scale bar = 250 μm. J. Tetrasporangial branch. Scale bar = 100 μm. K. Cross section of tetrasporangial branch, showing cruciately divided tetrasporangia. Scale bar = 100 μm.
FIGURE 10 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 10. Map of the geographical distribution of Gelidiellaceae and Gelidiaceae in Brazil. In bold are species confirmed in this work and by Iha et al. (2015) by morphology and molecular tools. Map was drawn from the cartographic database of the Instituto Brasileiro de Geografia e Estatística (IBGE).
FIGURE 4. A–E. Gelidiella acerosa. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 4. A–E. Gelidiella acerosa. A. Detail of the apical portion showing the prominent apical cell (arrow) (SP469045). Scale bar = 25 μm. B. Cross section of the middle region of the main branch (SP469045). Scale bar = 100 μm. C. Detail of main branch showing the transition from the cortex to the medulla (SP469045). Scale bar = 25 μm. D. Detail of the tetrasporangial branch with tetrasporangia (SP469046). Scale bar = 100 μm. E. Cross section of the tetrasporangial branch, showing tetrasporangia cruciately divided, with no sterile margin (SP469046). Scale bar = 100 μm. F–J. Gelidiella flabella (SP469052). F. Apical cell slightly different from the surrounding cells (arrow). Scale bar = 25 μm. G. Cross section of the middle region of the main branch. Scale bar = 250 μm. H. Detail of the cross section of the thallus showing the transition from cortex to medulla. Scale bar = 25 μm. I. Holdfast originated as independent rizoidal filaments. Scale bar = 100 μm. J. Cross section of the stoloniferous branch showing the origin of rhizoidal filaments from the outer cortical cell (arrow). Scale bar = 25 μm. K–N. Millerella myrioclada (SP469055). K. Detail of the acute apex with prominent apical cell. Scale bar = 25 μm. L. Cross section of the middle region of the main branch, showing row of medullary cells (arrow). Scale bar = 25 μm. M.Prostrate system. Scale bar = 250 μm. N. Tetrasporangial branch. Scale bar = 100 μm.
FIGURE 3 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 3. Habit of the Gelidiellaceae species. A. Gelidiella acerosa (SP469049). Scale bar = 1 cm. B. Gelidiella flabella (SP469052). Scale bar = 1 cm. C. Millerella myrioclada (SP469057). Scale bar = 1 cm. D. Millerella myrioclada (SP469057). Scale bar = 0.5 cm.
FIGURES 10–18 in A new marine alga, Pterocladiella andresii sp. nov. (Gelidiales, Rhodophyta) and its relationship to P. caloglossoides from Pacific South America
FIGURES 10–18. Pterocladiella caloglossoides (Howe) Santelices. 10. Plants attached to articulated coralline alga (CNU024786). Scale bar = 2 mm. 11. Habit of plant showing irregular branching (CNU024786). Scale bar = 1 mm. 12. Irregularly arranged outermost cortical cells in center of erect axes. Scale bar = 10 μm. 13. Transverse section of erect branch showing outermost cortical cells (oc), inner cortical cells (ic), rhizines (rz) and medullary cells (mc). Scale bar = 20 μm. 14. Tetrasporangial sorus on spatulate branch with v-shaped arrangement of tetrasporangia (CNU024786). Scale bar = 100 μm. 15. Transverse section of tetrasporangial sorus showing tetrasporangia (arrowheads). Scale bar = 20 μm. 16. Habit of female plant with cystocarps (arrowhead) (CNU024818). Scale bar = 1 mm. 17. Side view of cystocarp showing swelling on both sides (arrowhead). Scale bar = 0.5 mm. 18. Transverse section of mature cystocarp showing carpospores (arrowheads). Scale bar = 20 μm.
FIGURE 19 in A new marine alga, Pterocladiella andresii sp. nov. (Gelidiales, Rhodophyta) and its relationship to P. caloglossoides from Pacific South America
FIGURE 19. Maximum likelihood tree of concatenated (rbcL + cox1) dataset from Pterocladiella. The numbers above or below the nodes are RAxML bootstrap values and Bayesian posterior probabilities. Only bootstrap values ≥50% and Bayesian posterior probabilities ≥90 are shown in the tree.
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