Taxonomy and Distribution of the Genus Sellaphora Mereschowsky (Bacillariophyceae: Sellaphoraceae) in Aquatic Ecosystems of Mongolia
Abstract
:1. Introduction
2. Results
- Fourteen species—previously known in the flora of Mongolia according to literary data (including 11 described directly from the country’s aquatic ecosystems);
- Thirteen species—known from other regions and shown for the first time in the flora of Mongolia;
- One species—new to science.
3. Discussion
3.1. Species Previously Described or/and Shown in Mongolia
3.2. First Findings for Mongolian Flora
4. Materials and Methods
4.1. Sampling
4.2. Preparation of Slides and Microscope Investigation
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Species | Type Locality | Distribution in Mongolia |
---|---|---|
Sellaphora auldreekie D.G. Mann and S.M. McDonald in D.G. Mann et al. 2004 [14] | United Kingdom | Surface sediments of the Great Lakes Depression, sine loco |
Sellaphora bacilliformis (Grunow) Mereschkowsky 1902 | Norway, Dovre | Khövsgöl Lake, benthos; Cheltyge and Hortak Lakes, plankton |
Sellaphora bacillum (Ehrenberg) D.G. Mann 1989 | Africa, Algeria | Achit, Dund, Hoton, Dood, Hodoo, Davaa, Terhiyn Tsagaan, Gun, Hangal, Buyr Lakes, bottom sediments; Har, Har Us Bayan Lakes, bottom sediments; Khövsgöl Lake, benthos and bottom sediments; Changa River, plankton; Olon and Hag lakes, plankton; Tuul River, benthos; Small ponds of Buyr Lake catchment area, benthos and epiphyton; Surface sediments of the Great Lakes Depression, sine loco |
Sellaphora boltziana Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Hoh lake, benthos |
Sellaphora bullata (Østrup) Lange-Bertalot and Metzeltin in Metzeltin et al. 2009 | Denmark | Haraa and Tuul Rivers, benthos; Ayagan Byrd, Ynegtiin, Herlen, Tsenher, Shurguit, Jargalantl Rivers and Hoh Lake, benthos |
Sellaphora ellipticolanceolata Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Tsenkher River |
Sellaphora fennica Lange-Bertalot and Metzeltin in Metzeltin et al. 2009 | Mongolia | Haraa and Tuul Rivers, benthos; Ayagan Byrd, Ynegtiin, Herlen, Tsenher, Shurguit, Jargalant Rivers and Hoh Lake, benthos |
Sellaphora hustedtii (Krasske) Lange-Bertalot and Werum 2004 | Germany, Hesse | Terhiyn Tsagaan and Davaa Lakes, bottom sediments; Tuul River, plankton |
Sellaphora intermissa Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Ayagan Byrd, Ynegtiin, Herlen, Tsenher, Shurguit, Jargalant Rivers and Hoh Lake, benthos |
Sellaphora interrupta Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Bayan and Jargalant Rivers, benthos |
Sellaphora khangalis Metzeltin and Lange-Bertalot in Metzeltin et al. 2009 | Mongolia | Hangal Lake, benthos |
Sellaphora kretschmeri Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Hoh Lake, benthos |
Sellaphora kusberi Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Tuul, Ynegtiin, Herlen Rivers and Hangal Lake, benthos |
Sellaphora mongolocollegarum Metzeltin and Lange-Bertalot in Metzeltin et al. 2009 | Mongolia | Tuul, Ynegtiin, Shurguit, Jargalant Rivers and Hangal Lake, benthos |
Sellaphora mutata (Krasske) Lange-Bertalot in Lange-Bertalot et Metzeltin 1996 | Germany, Saxony | Hag Lake, plankton; Urd Tamir River, plankton; Small ponds of Buyr Lake catchment area, benthos and epiphyton |
Sellaphora parapupula Lange-Bertalot in Lange-Bertalot et Metzeltin 1996 | Europe | Achit, Khövsgöl, Terhiyn Tsagaan, Buyr Lakes, bottom sediments; Hogon lake, plankton |
Sellaphora perlaevissima Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Barun Burh, Bayan, Jargalant, Tsenher Rivers, benthos |
Sellaphora permutata Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Herlen River, benthos |
Sellaphora perobesa Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Har Us River, benthos |
Sellaphora pseudobacillum (Grunow) Lange-Bertalot and Metzeltin in Metzeltin et al. 2009 | Mongolia | Khövsgöl Lake and Changa River, plankton and benthos; Hangal Lake and Tuul River, benthos |
Sellaphora pseudopupula (Krasske) Lange-Bertalot in Lange-Bertalot et al. 1996 | Germany, Hesse | Sphagnum bog Nur |
Sellaphora pupula (Kützing) Mereschkovsky 1902 | Germany, near Nordhausen | Achit, Dund, Hoton Har, Har Us, Bayan, Khövsgöl, Terhiyn Tsagaan, Dava, Hodoo, Gun, Hangal, Buyr Lakes and Bog Nur, bottom sediments; Hoton, Nogon, Olon, Ust, Hag, Ogiy, Sangiyn Dalay Lakes, plankton; Ongi, Chatschim, Hortak, Tamir, Tuul Rivers, plankton Surface sediments of the Great Lakes Depression, sine loco; Loamy takyr desert soils; Dood Lake, plankton and bottom sediments |
Sellaphora rectangularis (W. Gregory) Lange-Bertalot and Metzeltin 1996 | Scotland, Isle of Mull | Achit, Dund, Hoton, Har, Har Us, Dood, Khövsgöl, Terhiyn Tsagaan, Hodo, Davaa, Gun, Hangal, Buyr Lakes, bottom sediments; Hag Lake, plankton |
Sellaphora rostrata (Hustedt) J.R. Johansen 2004 | Germany, Bremen | Khövsgöl, Davaa, Buyr Lakes, bottom sediments |
Sellaphora schrothiana Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Braun Burh, Herlen, Tsenher Rivers and Hangal, Hoh Lakes, bottom sediments |
Sellaphora seminulum (Grunow) D.G. Mann 1989 | Austria | Davaa Lake, bottom sediments |
Sellaphora simillima Metzeltin, Lange-Bertalot and Nergui 2009 | Mongolia | Hoh Lake, benthos |
Sellaphora stauroneioides (Lange-Bertalot) Veselá and J.R. Johansen 2009 | Finland | Sphagnum Bog Nur |
Sellaphora vitabunda (Hustedt) D.G. Mann 1989 | Germany, Holstein | Achit, Dood, Khövsgöl, Terhiyn Tsagaan, Davaa, Gun, Hangal, Buyr, bottom sediments; Surface sediments of the Great Lakes Depression, sine loco |
Sellaphora wittrockii (Lagerstedt) Lange-Bertalot and Metzeltin 2009 | Norway, Svalbard | Bayan River, benthos |
S. dorofeyukae sp. nov. | S. amicula | S. pseudamicula | S. krsticii | S. lambda | |
---|---|---|---|---|---|
Valve shape | Linear with parallel margins and broadly rounded ends | Linear but linear-elliptical, all with convex margins and broadly rounded ends | Linear to linear-elliptical with convex margins and broadly rounded ends | Linear to linear lanceolate with bluntly rounded, not protracted ends | Linear with weakly concave margins and broadly rounded ends |
Axial area and conopeum | Encompassing the complex of raphe-sternum, flaps of the conopeum, and parallel apical depressions and is straight (not undulating in parts), ca. 3 μm broad | Encompassing the complex of raphe-sternum, flaps of the conopeum, and parallel apical depressions and is straight (not undulating in parts), ca. 3 μm broad | Including conopeum and parallel apical depressions, 4.0–4.5 μm broad | Narrow and linear. Distinct conopeum present | Narrow and linear. Distinct conopeum present * |
Central area | Apically broad elliptical, extended to 1/3–1/4 of the valve breadth | Apically broad elliptical, extended to 1/4–1/3 of the valve breadth | Apically broad elliptical, extended to 1/3 of the valve breadth | Elliptical, 1/3 to 1/2 of valve breadth. | Apically broad elliptical, extended to 1/2–1/3 of the valve breadth * |
Valve length (μm) | 52.1–77.8 | 44.7–103.0 | 91.3–96.7 | 52–100 | 45–140 |
Valve breadth (μm) | 16.6–18.4 | 17.3–21.3 | 22.7–23.3 | 13.5–20.0 | 15–21 |
Striae number in 10 μm | 16–19 | 20–22 | 16–17 | 14–16 | 13–16 at the central part, 18–20 near the ends |
The shape of the lacunae and their location on the valve | Elongated lacunae on both sides of the conopeum; On the valve face, the lacunae are shorter, alternating with small areolae; Closer to the valve mantle, the lacunae are elongated; At the valve ends, the lacunae are almost not expressed | Elongated lacunae on both sides of the conopeum; On the valve face, the lacunae are shorter, alternating with small areolae; Closer to the valve mantle, the lacunae are more elongated; At the valve ends, the lacunae are almost not expressed | n.d. | There are no visible lacunae; in the conopeum, the poroids are somewhat elongated (mainly in the central part of the valve) | Elongated lacunae on both sides of the conopeum, especially near the central area; On the valve face, the lacunae are shorter, alternating with small areolae; At the valve ends, the lacunae are almost not expressed |
Perforations of the outer layer of silica (= “First order areolae”, “lacunae” by Metzeltin and Lange-Bertalot; = “areolae” from other authors), in 10 μm | 15–25 | 15–25 | 15–20 | 40–42 ** | 14–15 * |
Areolae basal layer (=“Second order areolae” by Metzeltin and Lange-Bertalot) number in 10 μm | In lacunae in the central part of the valve: 50; up to 70 in lacunae located near the central area and 40–45 at the valve ends. | ≈38 at the central part of the valve | n.d. | n.d. | 40–50 * |
Number of areolae basal layer (in each of the lacunae, = “Second order areolae” by Metzeltin and Lange-Bertalot) | 2–10 | 2–11 * | n.d. | n.d. | 2–9 * |
Distribution | Mongolia, Davaa Lake | Russia, Baikal Lake | Russia, Baikal Lake | North Macedonia, St. Naum springs, Lake Ohrid | South America, Guyana, Demerara River and Essequibo River |
References | This study | [8] | [8] | [44,45] | [46] |
Sample No. | Slide No. | Locality | Coordinates | Substratum | Cond., µS/cm | pH | t, °C | Collection of Date |
---|---|---|---|---|---|---|---|---|
Mn079 | 02431 | Davaa Lake | 48°10.803′ N; 98°46.107′ E | benthos | 20 | 8.1 | 13 | 8 July 2015 |
Mn085 | 02437 | Davaa Lake | 48°10.803′ N; 98°46.107′ E | periphyton | 20 | 8.1 | 13 | 8 July 2015 |
Mn088 | 02440 | Davaa Lake | 48°10.827′ N; 98°45.828′ E | benthos, sand | 20 | 6.9 | 13 | 8 July 2015 |
Mn089 | 02441 | Davaa Lake | 48°10.827′ N; 98°45.828′ E | benthos, sand | 20 | 6.9 | 13 | 8 July 2015 |
Mn092 | 02444 | Davaa Lake | 48°10.827′ N; 98°45.828′ E | periphyton | 20 | 6.9 | 13 | 8 July 2015 |
Mn095.1 | 02447 | Davaa Lake | 48°11.145′ N; 98°45.746′ E | bottom sediment a depth of 4 m, column depth 15 cm | 38 | 7.7 | 15 | 8 July 2015 |
Mn095.5 | 02452 | Davaa Lake | 48°11.145′ N; 98°45.746′ E | bottom sediment a depth of 4 m, column depth 4 cm | 38 | 7.7 | 15 | 8 July 2015 |
Mn104 | 02457 | Unnamed river flowing out of the Davaa Lake | 48°10.791′ N; 98°46.272E′ | periphyton | 38 | 7.7 | 15 | 8 July 2015 |
Mn101 | 02458 | Puddle with moss next to the Davaa Lake | 48°10.815′ N; 98°45.835′ E | benthos | 124 | 6.73 | 14 | 8 July 2015 |
Mn156 | 02463 | Bayan Lake, small bay | 48°26.668′ N; 95°10.937′ E | benthos | 260 | 9.8 | 10.5 | 12 July 2015 |
Mn161 | 02474 | Bayan Lake, small bay | 48°26.668′ N; 95°10.937′ E | benthos | 260 | 9.8 | 10.5 | 12 July 2015 |
Mn163 | 02475 | Bayan Lake, small bay | 48°26.668′ N; 95°10.937′ E | benthos | 260 | 9.8 | 10.5 | 12 July 2015 |
Mn164 | 02476 | Bayan Lake, small bay | 48°26.668′ N; 95°10.937′ E | benthos, sand | 260 | 9.8 | 10.5 | 12 July 2015 |
Mn166 | 02478 | Bayan Lake, small bay | 48°26.668′ N; 95°10.937′ E | benthos, sand | 260 | 9.8 | 10.5 | 12 July 2015 |
Mn282 | 02605 | Khövsgöl Lake | 50°59.380′ N; 100°42.507′ E | benthos | 236 | 8.7 | 11.5 | 21 July 2015 |
Mn285 | 02611 | Unnamed lake near Khövsgöl Lake, separated by a sandbar | 50°59.165′ N; 100°42.514′ E | periphyton | 100 | 8.9 | 18 | 28 July 2015 |
Mn290 | 02620 | Unnamed river | 50°56.140′ N; 100°45.585′ E | benthos | 42 | 7.3 | 9 | 28 July 2015 |
Mn232 | 02621 | Khövsgöl Lake | 50°59.380′ N; 100°42.507′ E | periphyton | 157 | 9.6 | 20 | 18 July 2015 |
Mn287 | 02622 | Unnamed lake near Khövsgöl Lake, separated by a sandbar | 50°59.165′ N; 100°42.514′ E | periphyton | 100 | 8.9 | 18 | 28 July 2015 |
Mn289.3 | 02636 | Unnamed lake near Khövsgöl Lake, separated by a sandbar | 50°59.165′ N; 100°42.514′ E | surface sediment a depth of 5 m | 100 | 8.9 | 18 | 28 July 2015 |
Mn289.1 | 02642 | Unnamed lake near Khövsgöl Lake, separated by a sandbar | 50°59.165′ N; 100°42.514′ E | bottom sediment a depth of 5 m, column depth 20 cm | 100 | 8.9 | 18 | 28 July 2015 |
Mn329 | 02675 | Unnamed lake near the valley of the river flowing into Khövsgöl Lake | 50°45.290′ N; 100°30.871′ E | phytoplankton | 228 | 9.6 | 20.5 | 22 July 2015 |
Mn335.8 | 02684 | Khövsgöl Lake, Heeguer Bay | 50°38.641′ N; 100°31.397′ E | benthos | 304 | 10.6 | 22 | 22 July 2015 |
Mn307 | 02687 | Khövsgöl Lake, Heeguer Bay | 50°38.641′ N; 100°31.397′ E | periphyton | 304 | 10.6 | 22 | 22 July 2015 |
Mn313 | 02696 | Khövsgöl Lake, Heeguer Bay | 50°38.641′ N; 100°31.397′ E | periphyton | 304 | 10.6 | 22 | 22 July 2015 |
Mn236a | 02984 | Unnamed lake near Khövsgöl Lake, separated by a sandbar | 50°48.083′ N; 100°14.631′ E | periphyton | 155 | 9.5 | 20 | 18 July 2015 |
Mn272 | 03005 | Unnamed lake near Khövsgöl lake, separated by a sandbar | 50°39.220′ N; 100°15.165′ E | phytoplankton | 230 | 9.7 | 23 | 18 July 2015 |
Mn283.2 | 03009 | Khövsgöl Lake, Boreug Bay | 50°59.380′ N; 100°42.507′ E | benthos | 236 | 8.7 | 11.5 | 21 July 2015 |
Mn292 | 03015 | Unnamed river | 50°50.519′ N; 100°45.585′ E | benthos, sand | 90 | 7.4 | 6.5 | 28 July 2015 |
Mn293 | 03016 | Unnamed river | 50°50.519′ N; 100°45.585′ E | periphyton | 90 | 7.4 | 6.5 | 28 July 2015 |
Mn294 | 03017 | Unnamed river | 50°50.519′ N; 100°45.585′ E | periphyton | 90 | 7.4 | 6.5 | 28 July 2015 |
Mn040 | 03027 | Unnamed lake near Terkhiin Tsagaan Lake | 48°08.496′ N; 99°49.823′ E | periphyton | 94 | 8 | 14 | 6 July 2015 |
Mn051 | 03030 | Terkhiin Tsagaan Lake | 48°08.322′ N; 99°49.745′ E | benthos | 140 | 8.8 | 16 | 6 July 2015 |
Mn147 | 03053 | Holbo Lake | 48°34.507′ N; 95°25.679′ E | periphyton | 346 | 10.1 | 18 | 11 July 2015 |
Mn034 | 03097 | Suman River | 48°06.166′ N; 99°57.621′ E | benthos, sand | 100 | 9 | 4.5 | 6 July 2015 |
Mn058 | 03101 | Terkhiin Tsagaan Lake | 48°09.551′ N; 99°42.984′ E | benthos, sand | 143 | 8.4 | 14 | 6 July 2015 |
Mn063 | 03105 | Terkhiin Tsagaan Lake | 48°07.574′ N; 99°36.852′ E | benthos | 142 | 9 | 16 | 6 July 2015 |
Mn192 | 03121 | Unnamed lake | 49°05.716′ N; 96°40.276′ E | benthos | 384 | 7.7 | 10 | 15 July 2015 |
Mn195 | 03123 | Unnamed spring near the lake | 49°05.816′ N; 96°40.032′ E | benthos | 111 | 7.1 | 8 | 15 July 2015 |
Mn006 | 03149 | Ögii Lake | 47°47.240′ N; 102°45.431′ E | benthos | 541 | 9.2 | 23.4 | 5 July 2015 |
Mn008 | 03150 | Ögii Lake | 47°47.240′ N; 102°45.431′ E | benthos, sand | 541 | 9.2 | 23.4 | 5 July 2015 |
Mn009 | 03151 | Ögii Lake | 47°47.240′ N; 102°45.431′ E | periphyton | 541 | 9.2 | 23.4 | 5 July 2015 |
Mn117 | 03163 | Zavagan Lake | 48°08.196′ N; 98°49.710′ E | benthos | 250 | 8.4 | 15.6 | 9 July 2015 |
Mn119.3 | 03167 | Zavagan Lake | 48°08.196′ N; 98°49.710′ E | bottom sediment a depth of 5 m, column depth 1 cm | 250 | 8.4 | 15.6 | 9 July 2015 |
Mn122 | 03169 | Terkhiin River | 48°04.940′ N; 98°55.078′ E | periphyton | 146 | 8.6 | 16 | 9 July 2015 |
Mn224 | 03183 | Jargalant River | 49°37.376′ N; 99°35.059′ E | periphyton | 198 | 8.6 | 21 | 17 July 2015 |
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Glushchenko, A.; Genkal, S.; Kuznetsova, I.; Kulikovskiy, M. Taxonomy and Distribution of the Genus Sellaphora Mereschowsky (Bacillariophyceae: Sellaphoraceae) in Aquatic Ecosystems of Mongolia. Plants 2023, 12, 3611. https://doi.org/10.3390/plants12203611
Glushchenko A, Genkal S, Kuznetsova I, Kulikovskiy M. Taxonomy and Distribution of the Genus Sellaphora Mereschowsky (Bacillariophyceae: Sellaphoraceae) in Aquatic Ecosystems of Mongolia. Plants. 2023; 12(20):3611. https://doi.org/10.3390/plants12203611
Chicago/Turabian StyleGlushchenko, Anton, Sergei Genkal, Irina Kuznetsova, and Maxim Kulikovskiy. 2023. "Taxonomy and Distribution of the Genus Sellaphora Mereschowsky (Bacillariophyceae: Sellaphoraceae) in Aquatic Ecosystems of Mongolia" Plants 12, no. 20: 3611. https://doi.org/10.3390/plants12203611