Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2024-09-05
Page range: 111-122
Abstract views: 173
PDF downloaded: 8

Two new Planothidium (Achnanthidiaceae, Bacillariophyceae) species with a sinus from the Kamchatka Peninsula, Russia

Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., 127276 Moscow, Russia. Department of Mycology and Algology, Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia.
Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., 127276 Moscow, Russia
Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., 127276 Moscow, Russia
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, 152742 Borok, Russia
Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., 127276 Moscow, Russia
Planothidium new species monoraphid diatoms Kamchatka Peninsula molecular investigation Algae

Abstract

Two new species from the genus Planothidium are described from the Kamchatka Peninsula, Russia, based on morphological and molecular analysis: Planothidium piipii and P. novograblenovii. The new species are characterised by a horseshoe-shaped structure in the form of a sinus on the rapheless valve. Comparison with closely related species is provided; the new species are distinguished by various traits, including valve outline and dimensions, striation patterns, and sinus shape. According to molecular data, strains of the new species form a subclade within a clade that includes species of the Planothidium lanceolatum complex.

References

  1. Cantonati, M., Bilous, O., Angeli, N., van Wensen, L. & Lange-Bertalot, H. (2021) Three new diatom species from spring habitats in the northern Apennines (Emilia-Romagna, Italy). Diversity 13 (549): 1–20. https://doi.org/10.3390/d13110549
  2. Darriba, D., Taboada, G.L., Doallo, R. & Posada, D. (2012) jModelTest 2: More models, new heuristics and parallel computing. Nature Methods 9: 772. https://doi.org/10.1038/nmeth.2109
  3. Daugbjerg, N. & Andersen, R.A. (1997) A molecular phylogeny of the heterokont algae based on analyses of chloroplast-encoded rbcL sequence data. Journal of Phycology 33: 1031–1041.
  4. Drummond, A.J. & Rambaut, A. (2007) BEAST: Bayesian evolutionary analysis by sampling trees. BMC Ecology and Evolution 7: 214. https://doi.org/10.1186/1471-2148-7-214
  5. Giffen, M.H. (1975) An account of the littoral diatoms from Langeban, Saldanha Bay, Cape Province, South Africa. Botanica Marina 18: 71–95. https://doi.org/10.1515/botm.1975.18.2.71
  6. Guillard, R.R.L. & Lorenzen, C.J. (1972) Yellow-green algae with chlorophyllide c1,2. Journal of Phycology 8: 10–14. https://doi.org/10.1111/j.0022-3646.1972.00010.x
  7. Jahn, R., Abarca, N., Gemeinholzer, B., Mora, D., Skibbe, O., Kulikovskiy, M., Gusev, E., Kusber, W.-H. & Zimmermann, J. (2017) Planothidium lanceolatum and Planothidium frequentissimum reinvestigated with molecular methods and morphology: four new species and the taxonomic importance of the sinus and cavum. Diatom Research 32 (1): 75–107. https://doi.org/10.1080/0269249X.2017.1312548
  8. Katoh, K. & Toh, H. (2010) Parallelization of the MAFFT multiple sequence alignment program. Bioinformatics 26: 1899–1900. https://doi.org/10.1093/bioinformatics/btq224
  9. Kumar, S., Stecher, G. & Tamura, K. (2016) MEGA7: Molecular Evolutionary Genetics Analysis Version 7.0 for Bigger Datasets. Molecular Biology and Evolution 33: 1870–1874. https://doi.org/10.1093/molbev/msw054
  10. Kützing, F.T. (1846) Kurze Mittheilung über einige kieselschalige Diatomeen. Botanischen Zeitung 4 (14): 247–248.
  11. Lange-Bertalot, H. (1999) Neue Kombinationen von Taxa aus Achnanthes Bory (sensu lato). Iconographia Diatomologica 6: 270–283.
  12. Morales, E. (2006) Small Planothidium Round et Bukhtiyarova (Bacillariophyceae) taxa related to P. daui (Foged) Lange-Bertalot from the United States. Diatom Research 21 (2): 325–342. https://doi.org/10.1080/0269249X.2006.9705673
  13. Round, F.E. & Bukhtiyarova, L. (1996) Four new genera based on Achnanthes (Achnanthidium) together with a re-definition of Achnanthidium. Diatom Research 11 (2): 345–361. https://doi.org/10.1080/0269249X.1996.9705389
  14. Ruck, E.C. & Theriot, E.C. (2011) Origin and evolution of the canal raphe system in diatoms. Protist 162 (5): 723–737. https://doi.org/10.1016/j.protis.2011.02.003
  15. Stamatakis, A., Hoover, P. & Rougemont, J. (2008) A Rapid Bootstrap Algorithm for the RAxML Web Servers. Systematic Biology 57: 758–771. https://doi.org/10.1080/10635150802429642
  16. Van de Vijver, B., Wetzel, C., Kopalová, K., Zidarova, R. & Ector, L. (2013) Analysis of the type material of Achnanthidium lanceolatum Brébisson ex Kützing (Bacillariophyta) with the description of two new Planothidium species from the Antarctic Region. Fottea 13 (2): 105–117. https://doi.org/10.5507/fot.2013.010
  17. Van Heurck, H. (1880) Synopsis des Diatomées de Belgique. Atlas. Ducaju & Cie., Anvers, pp. 61.
  18. Wetzel, C.E., Van de Vijver, B., Kopalová, K., Hoffmann, L., Pfister, L. & Ector, L. (2014) Type analysis of the South American diatom Achnanthes haynaldii (Bacillariophyta) and description of Planothidium amphibium sp. nov., from aerial and aquatic environments in Oregon (USA). Plant Ecology and Evolution 147 (3): 439–454. https://doi.org/10.5091/plecevo.2014.1058
  19. Witkowski, A., Lange-Bertalot, H. & Metzeltin, D. (2000) Diatom flora of marine coasts I. Iconographia Diatomologica 7: 1–925.
  20. Zimmermann, J., Jahn, R. & Gemeinholzer, B. (2011) Barcoding diatoms: Evaluation of the V4 subregion on the 18S rRNA gene, including new primers and protocols. Organisms Diversity & Evolution 11: 173–192. https://doi.org/10.1007/s13127-011-0050-6