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45 results for “Mallomonas”
FIG. 2 in Mallomonas vietnamica Gusev, Kezlya & Tran, sp. nov. (Synurales, Chrysophyceae), a new species, that shares some features with fossil taxa
FIG. 2. — Mallomonas vietnamica Gusev, Kezlya & Tran sp. nov. scanning electron microscopy images (SEM: A-J): A-D, scales with recessed domes, shifted to the right part of the scales, oriented at different angles to the longitudinal axis (Fig. 2A is a representative scale from the holotype specimen); E-F, undersurface view of the scales; G, long straight bristle; H, J, tips of bristles with teeth; I, foot of the bristle. Scale bars: A, B, D, I, 1 μm; C, E, F, H, J, 2 μm; G, 10 μm.
FIG. 1 in Mallomonas teres, sp. nov. (Chrysophyceae), simultaneously revealed in two distant European peat-bog regions
FIG. 1. — Body scales of Mallomonas teres, sp. nov.: A, B, scales observed in a transmission electron microscope; C, a scale observed in a scanning electron microscope. Scale bars: 1 µm.
FIG. 1 in Mallomonas vietnamica Gusev, Kezlya & Tran, sp. nov. (Synurales, Chrysophyceae), a new species, that shares some features with fossil taxa
FIG. 1. — Map of the study area (stars indicates sampling site).
FIGURES 8–13 in New observations on Mallomonas getseniae comb. et stat. nov. (Chrysophyceae, Synurales)
FIGURES 8–13. Scales and bristles of Mallomonas getseniae. SEM. Scale bar: 9, 10—2 µm; 13—5 µm; 8, 11, 12—10 µm.
FIGURES 1–7 in New observations on Mallomonas getseniae comb. et stat. nov. (Chrysophyceae, Synurales)
FIGURES 1–7. Scales of Mallomonas getseniae comb. et stat. nov. from Lake Baikal. Figure 1–5. Body scales; Figure 6. Body scale, undersurface view. Figure 7. Caudal scale without wing-like struts on anterior flanges and without a dome. SEM. Scale bars: 4 µm.
FIGURES 2–13 in Mallomonas rimosa sp. nov. (Synurales, Chrysophyceae)-a rare tropical species from Vietnam
FIGURES 2–13. Mallomonas rimosa sp. nov. Figure 2–3. Body scales, SEM. Figures 4–10. Body scales, TEM. Figure 11. Rear scale, TEM. Figure 12–13. Collar scales, TEM. Figure 2 is a representative scale from the type specimen. Scale bars: Figures 4–5, 7, 10–13: 2 μm; Figures 6, 8–9: 1 μm; Figures 2–3: 0.5 μm.
FIGURES 2–10 in Mallomonas lusca sp. nov. (Synurales, Chrysophyceae)-a rare species from Southeast Asia
FIGURES 2–10. Mallomonas lusca sp. nov. Figure 2–3. Body scales, SEM. Figures 4–6. Body scales, TEM. Figure 7. Collar scale, TEM. Figure 8. Group of scales with bristles, TEM. Figure 9. Bristle, TEM. Figure 10. Rear scale, TEM. Scales on figures 2, 4–5, 7–10 are from the type locality in Binh Thuan Province; figure 2 is from the holotype specimen. Scale bars: Figures 4–10: 2 μm; Figures 2–3: 0.5 μm.
FIGURES 15–20. Mallomonas voloshkoae and M. pechlaneri. TEM images. FIGURES 15–18 in Mallomonas voloshkoae sp. nov. (Synurales, Chrysophyceae) and distribution of M. pechlaneri in mountain lakes of Siberia
FIGURES 15–20. Mallomonas voloshkoae and M. pechlaneri. TEM images. FIGURES 15–18. Mallomonas voloshkoae sp. nov. Body scales from different habitats. Figure 15. Unnamed lake 1. Figure 16. Unnamed lake 2. Figure 17. Unnamed lake 3. Figure 18. Lake Frolikha. FIGURES 19–20. Mallomonas pechlaneri. Figure 19. Scales with bristles from Teletskoe Lake. Figure 20. Scales with bristles from Ilchir Lake. Scale bars: Figs 15–20: 2 μm.
FIGURES 2–14 in Mallomonas voloshkoae sp. nov. (Synurales, Chrysophyceae) and distribution of M. pechlaneri in mountain lakes of Siberia
FIGURES 2–14. Mallomonas voloshkoae sp. nov., scales from the type habitat. Figures 2–5. Body scales, SEM. Figure 6. Bottom surface of a scale. Note the base-plate pores covering the area in the angle of the V-rib and posterior flanges. Figures 7–9. Body scales, TEM. Figures 10–11. Body scales with bristles, TEM. Figures 12–13. Bristles, SEM. Figure 14. Tips of two bristles, SEM. Scale bars: Figs 7–11: 2 μm; Fig. 2, 4–6, 12–14: 1 μm Fig. 3: 0.5 μm.
FIGURES 2–11 in Phylogenetic position, typification and emended description of Mallomonas matvienkoae (Chrysophyceae, Synurales)
FIGURES 2–11. Mallomonas matvienkoae (strain R064). Figures 2–4. Scales, TEM. Figures 5–6. Scales, SEM. Figure 7. Undersurface view of a scale. Figure 8. Bristle, TEM. Figure 9. Bristle, SEM. Figure 10. Serrated tip of the bristle, TEM. Figure 11. Serrated tip of the bristle, SEM. Scale bars: Figures 3, 5–7, 11: 1 μm; Figures 2, 4, 8–10: 2 μm.
FIGURES 1–3. Mallomonas denticulata Fig. 1 in Nomenclatural and taxonomic notes on Mallomonas Perty (Chrysophyceae). I. Typification of Mallomonas denticulata Matvienko
FIGURES 1–3. Mallomonas denticulata Fig. 1. Reproduction of the original drawing from Matvienko (1941: fig. 5). Fig. 2. Body scale with a bristle, SEM. Fig. 3. Body scale, TEM. Scale bars: 2–5 µm; 3–2 µm.
FIGURES 2–11 in Mallomonas paraperfossa sp. nov. (Chrysophyceae, Synurales), a new species from the shallow ephemeral ponds in the steppe zone of the Southern Urals, Russia
FIGURES 2–11. Mallomonas paraperfossa sp. nov. Figure 2. Whole cell, SEM. Figures 3–4. Body scales, TEM. Figures 5–8. Body scales, SEM. Figures 9–10. Apical scales, SEM. Figure 11. Apical scale, TEM. Scale bars: 2 μm.
FIGURES 5–13 in Mallomonas uralensis sp. nov. (Chrysophyceae, Synurales), a new species of the genus Mallomonas from the section Torquatae
FIGURES 5–13. Mallomonas uralensis sp. nov. Figure 5. Collar scale. Figures 6–9. Body scales of different shape. Figures 10–12. Rear scales. Figure 13. Bristle and scale (bottom view). Figures 5–7, 9–13: SEM. Figure 8: TEM. Scale bars: fig. 9 — 1 μm; figs. 5–8, 10–13 — 2 μm.
FIGURES 2–16 in A new species of the genus Mallomonas (Synurales, Chrysophyceae), Mallomonas fimbriata, sp. nov.
FIGURES 2–16. Mallomonas fimbriata, sp. nov. TEM and SEM images of different types of scales. Figs. 2–6. Body scales, TEM. Fig. 7. Caudal scale, TEM. Fig. 8. Caudal scale, SEM. Fig. 9. Group of body scales, SEM. Fig. 10. Group of scales including two caudal scales with short spines, SEM. Figs 11–13. Body scales, SEM. Fig. 14. Apical scale, SEM. Fig. 15: Body scale, bottom view, SEM. Fig. 16. Group of scales including two scales lying on the edge (lateral view), SEM. Scale bars: Figs. 2–8: 2 μm; Figs. 9–16: 1 μm.
FIGURE 2. A in Mallomonas alpestrina sp. nov. (Synurales, Chrysophyceae, Stramenopiles) and its spineless relatives-Mallomonas alata group
FIGURE 2. A. Whole-cell armor of Mallomonas alata f. alata in a scanning electron microscope (SEM) micrograph. B. Mallomonas alata f. hualvensis, whole cell in SEM. C. A combined micrograph of whole-cell armors of M. alata f. alata (upper part) and M. alata f. hualvensis (lower part) in a transmission electron microscope (TEM) micrograph. D. Whole-cell armor of M. tirolensis in TEM. Scale bar = 2 μm.
FIGURE 1. A–C in Mallomonas alpestrina sp. nov. (Synurales, Chrysophyceae, Stramenopiles) and its spineless relatives-Mallomonas alata group
FIGURE 1. A–C. Collar scales in: A. Mallomonas alata f. alata. B. Mallomonas alata f. hualvensis. C. Mallomonas tirolensis. D–F. Body scales in: D. Mallomonas alata f. alata. E. Mallomonas alata f. hualvensis. F. Mallomonas tirolensis. G–I. Transitional scales between the rear and the body scales in: G. Mallomonas. alata f. alata. H. Mallomonas alata f. hualvensis (note the considerably broad anterior flange). I. Mallomonas tirolensis. J–L. Rear scales in: J. Mallomonas alata f. alata. K. Mallomonas alata f. hualvensis. L. Mallomonas tirolensis. Scale bar = 1μm. A–L are shown at the same magnification.
FIGURE 3 in Mallomonas alpestrina sp. nov. (Synurales, Chrysophyceae, Stramenopiles) and its spineless relatives-Mallomonas alata group
FIGURE 3. Mallomonas alpestrina sp. nov. A. A collar scale. B–C. Body scales. D. Detail of body scale; note short ridges of reticulum surrounding large groups of pores. E–F. Asymmetrical body scales with one anterior flange considerably broader and shorter than the other. G–I. Rear scales. I. A rear scale bearing a diminutive spine. Scale bars = 1 μm, if not stated otherwise.
FIGURES 2–22 in Mallomonas cattiensis, sp. nov. (Synurales, Chrysophyceae), a new species from Viet Nam
FIGURES 2–22. Mallomonas cattiensis, sp. nov. TEM and SEM images of different types of scales. 2–3. Domed body scale with different focus, TEM. 4–5. Domed body scales, TEM. 6. Domeless body scale, TEM. 7. Domeless body scale, SEM. 8–9. Domed body scales, SEM. 10. Domed and domeless body scales, SEM. 11. Apical scale, SEM. 12. Domeless scale, SEM. 13. Group of scales, SEM. 14–16. Caudal scales, SEM. 17. Caudal scale, bottom view, SEM. 18. Domed body scale, bottom view, SEM. 19. Domeless body scale, lateral view, SEM. 20, 22. Bristles, SEM. 21. Bristle with domeless scale, SEM. Scale bars: 2–6, 13: 2 μm; 7–12, 14–22: 1 μm.
FIGURES 17–21 in Two new species of the genus Mallomonas from the Cat Tien National Park (Viet Nam): Mallomonas distinguenda and Mallomonas skvortsovii
FIGURES 17–21. Mallomonas skvortsovii sp. nov. Figs 17–18. Body scales, TEM. Fig. 19. Apical scale, TEM. Figs 20–21. Body scales, SEM. Scale bars: Figs. 17–18: 2 μm; Figs 19–21: 1 μm.
FIGURES 1–16 in Two new species of the genus Mallomonas from the Cat Tien National Park (Viet Nam): Mallomonas distinguenda and Mallomonas skvortsovii
FIGURES 1–16. Mallomonas distinguenda sp. nov. TEM and SEM images of scales. Figs. 1–8. Body scales, TEM. Figs 9–12—Apical scales, TEM. Figs 13–16. Body scales, SEM. Note different number and position of rimmed pores: more or less symmetrical at the angle of the V-rib, 2 pores (Figs 1, 2, 13, 15–16) and 3 pores (Fig. 11), strongly asymmetrical along one arm of the V-rib, two pores (Figs 3, 5–9, 12, 14) and three pores (Figs 4, 10). Scale bars: Figs. 2–3, 6–9, 11–12: 2 μm; Figs 1, 4–5, 10, 13–14: 1 μm, Figs 15–16: 0.5 μm
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