Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 630 No. 2: 14 Dec. 2023
Type: Article
Published: 2023-12-14
DOI: 10.11646/phytotaxa.630.2.2
Page range: 112-122
Abstract views: 172
PDF downloaded: 11

Cymbella alexandrovichii sp. nov. (Cymbellaceae, Bacillariophyceae), a new cymbelloid diatom species with predominantly biseriate striae from South-East Asia

К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia
К.А. Timiryazev Institute of Plant Physiology RAS; IPP RAS; 35 Botanicheskaya St.; Moscow; 127276; Russia. Faculty of Biology; M.V. Lomonosov Moscow State University; Leninskie Gory 1; building 12; Moscow; 119234; Russia
К.А. Timiryazev Institute of Plant Physiology RAS; IPP RAS; 35 Botanicheskaya St.; Moscow; 127276; Russia
К.А. Timiryazev Institute of Plant Physiology RAS; IPP RAS; 35 Botanicheskaya St.; Moscow; 127276; Russia
Algae Bacillariophyceae new species Cymbella biseriate striae Laos

Abstract

A new species from the genus Cymbella is described based on the morphological study using light and scanning electron microscopy. In the new species, striae are predominantly biseriate except for the central part of the valve, where they become uniseriate. Cymbella alexandrovichii sp. nov. is compared to 8 similar species of Cymbella that possess biseriate striae throughout the valve or only near the apices. Another species with biseriate striae—Gomphocymbellopsis guijiangensis­—was included in the comparison based on the similar morphology. In addition, 3 species of Cymbella are compared to Cymbella alexandrovichii sp. nov. herein, despite lacking biseriate striation. The new species can be distinguished from similar taxa by a combination of features: asymmetric lanceolate outline with convex dorsal margin, not protracted cuneate to bluntly rounded valve ends, predominantly biseriate striae and 2–3 ventral stigmata.

 

References

  1. Agardh, C.A. (1830) Conspectus criticus diatomacearum. Part 1. Litteris Berlingianis, Lund, 16 pp.
  2. Bessey, C.E. (1907) A synopsis of plant phyla. University Studies of the University of Nebraska 7: 275–373.
  3. Cleve, P.T. (1894) Synopsis of the naviculoid diatoms. Part I. Kongliga Svenska Vetenskapsakademiens Handlingar Series 4 26 (2): 1–194.
  4. Edlund, M.B. & Soninkhishig, N. (2009) The Navicula reinhardtii species flock (Bacillariophyceae) in ancient Lake Hövsgöl, Mongolia: description of four taxa. Nova Hedwigia, Beiheft 135: 239–255.
  5. Glushchenko, A.M., Kuznetsova, I.V., Kociolek, J.P. & Kulikovskiy, M.S. (2019) Karthickia verestigmata gen. et sp. nov. – an interesting diatom with frustular morphology similar to several different cymbelloid diatom genera. Phycologia 58: 605–613. https://doi.org/10.1080/00318884.2019.1626605
  6. Gong, Z., Li, Y., Metzeltin, D. & Lange-Bertalot, H. (2013) New species of Cymbella and Placoneis (Bacillariophyta) from late Pleistocene fossil, China. Phytotaxa 150: 29–40. https://doi.org/10.11646/phytotaxa.150.1.2
  7. Guiry, M.D. & Guiry, G.M. (2022) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: http://www.algaebase.org (accessed: 19 November 2023).
  8. Guo, J.-S., Meng, W.-W., He, X.-Y., Zhang, Y., Li, Y.-L. & Kociolek, J.P. (2021) Oricymba gongshanensis sp. nov. (Cymbellaceae; Bacillariophyceae), a new species from southwest China. Phytotaxa 508: 39–48. https://doi.org/10.11646/phytotaxa.508.1.3
  9. Guo, J.-S., Ni, H.-P., Li, Y.-J., Kociolek, J.P. & Li, Y.-L. (2023) Gomphocymbellopsis guijiangensis sp. nov. (Cymbellaceae; Bacillariophyta), a new species from Guangxi Province with comments on associated specimens from Hubei Province, China. Phytotaxa 594: 204–212. https://doi.org/10.11646/phytotaxa.594.3.4
  10. Jüttner, I., Gurung, S., Sharma, C., Sharma, S., De Haan, M. & Van de Vijver, B. (2010b) Morphology of new taxa in the Cymbella aspera and Cymbella neocistula groups, Cymbella yakii sp. nov. and Cymbella cf. hanzschiana from Everest National Park, Nepal. Polish Botanical Journal 55 (1): 73–92. https://doi.org/10.1134/S199508291504015X
  11. Jüttner, I., Krammer, K., Van de Vijver, B., Tuji, A., Simkhada, B., Gurung, S., Sharma, S., Sharma, C. & Cox, E.J. (2010a) Oricymba (Cymbellales, Bacillariophyceae), a new cymbelloid genus and three new species from the Nepalese Himalaya. Phycologia 49: 407–423. https://doi.org/10.2216/09-77.1
  12. Kapustin, D.A., Glushchenko, A.M., Kociolek, J.P. & Kulikovskiy, M.S. (2021) Encyonopsis indonesica sp. nov. (Bacillariophyceae, Cymbellales), a new diatom from the ancient lake Matano (Sulawesi, Indonesia). PhytoKeys 175: 1–11. https://doi.org/10.3897/phytokeys.175.61044
  13. Kapustin, D.A., Kociolek, J.P., Glushchenko, A.M. & Kulikovskiy, M.S. (2019) Four new species of Cymbella (Bacillariophyta) from the ancient Malili lakes (Sulawesi Island, Indonesia). Botanicheskij journal 104: 766–780. https://doi.org/10.1134/S0006813619050065
  14. Kapustin, D.A., Kulikovskiy, M. & Kociolek, J.P. (2017) Celebesia gen. nov., a new cymbelloid diatom genus from the ancient lake Matano (Sulawesi Island, Indonesia). Nova Hedwigia Beiheft 146: 147–155. https://doi.org/10.1127/1438-9134/2017/147
  15. Kezlya, E.M., Glushchenko, A.M., Kociolek, J.P., Maltsev, Ye.I., Genkal, S.I. & Kulikovskiy, M.S. (2022) A New Species of Placoneis Mereschkowsky (Bacillariophyceae: Cymbellales) from Wet Soils in Southern Vietnam. Cryptogamie Algologie 43: 177–188. https://doi.org/10.5252/cryptogamie-algologie2022v43a11
  16. Kezlya, E.M., Glushchenko, A.M., Maltsev, Ye.I., Gusev, E.S., Genkal, S.I., Kuznetsov, A.N., Kociolek, J.P. & Kulikovskiy, M.S. (2020) Placoneis cattiensis sp. nov. – a new, diatom (Bacillariophyceae: Cymbellales) soil species from Cát Tiên National Park (Vietnam). Phytotaxa 460: 237–248. https://doi.org/10.11646/phytotaxa.460.4.1
  17. Kezlya, E.M., Glushchenko, A.M., Maltsev, Ye.I., Gusev, E.S., Genkal, S.I, Kociolek, J.P. & Kulikovskiy, M.S. (2021) Three new species of Placoneis Mereschkowsky (Bacillariophyceae: Cymbellales) with comments on cryptic diversity in the P. elginensis-group. Water 13: 3276. https://doi.org/10.3390/w13223276
  18. Kheiri, S. & Spaulding, S. (2023) New records for freshwater benthic diatom flora of Iran, from Damavand River Basin (Central Alborz), Iran. Journal of Phycological Research 7 (1): 959–968.
  19. Kirchner, O. (1878) Algen. In: Cohn, F. (Ed.) Kryptogamen-Flora von Schlesien. Part 1. J.U. Kern’s Verlag (Max Müller), Breslau. Vol. 2, pp. 1–284.
  20. Kociolek, J.P. & Stoermer, E.F. (1987) Ultrastructure of Cymbella sinuata and its allies (Bacillariophyceae), and their transfer to Reimeria, gen. nov. Systematic Botany 12: 451–459. https://doi.org/10.2307/2418882
  21. Kociolek, J.P. (2018) A worldwide listing and biogeography of freshwater diatom genera: a phylogenetic perspective. Diatom Research 33: 509–534. https://doi.org/10.1080/0269249X.2019.1574243
  22. Kociolek, J.P., You, Q.-M, Wang, Q.-X. & Liu, Q. (2015) Consideration of some interesting freshwater gomphonemoid diatoms from North America and China, and the description of Gomphosinica, gen. nov. Beih. Nova Hedwigia 144: 175–198.
  23. Krammer, K. (1997) Die cymbelloiden Diatomeen. Ein Monographie der weltweit bekannten Taxa. Teil 2. Encyonema, Encyonopsis and Cymbellopsis. Bibliotheca Diatomologica 37: 1–463.
  24. Krammer, K. (2002) Cymbella. In: Lange-Bertalot, H. (Ed.) Diatoms of Europe. Vol. 3. A.R.G. Gantner Verlag K.G., Ruggell, pp. 1–584.
  25. Kulikovskiy, M.S., Glushchenko, A.M. & Kociolek, J.P. (2015) The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement. Phytotaxa 227: 120–134. https://doi.org/10.11646/phytotaxa.227.2.2
  26. Kulikovskiy, M.S., Lange-Bertalot, H., Metzeltin, D. & Witkowski, A. (2012) Lake Baikal: Hotspot of endemic diatoms I. Iconographia Diatomologica 23: 1–607.
  27. Liu, B., Williams, D.M. & Liu, Q. (2018) A new species of Cymbella (Cymbellaceae, Bacillariophyceae) from China, possessing valves with both uniseriate and biseriate striae. Phytotaxa 344: 39–46. https://doi.org/10.11646/phytotaxa.344.1.5
  28. Mereschkowsky, C. (1903) Uber Placoneis, ein neues Diatomeen-Genus. Beihefte zum Botanischen Centralblatt 15: 1–30.
  29. Østrup, E. (1910) Danske Diatoméer med 5 tavler et Engelsk résumé. Udgivet paa Carlsbergfondets bekostning. C.A. Reitzel Boghandel Bianco Lunos Bogtrykkeri, Copenhagen, 323 pp. https://doi.org/10.5962/bhl.title.1044
  30. Qi, L., Wu, H., Li, Y.-L. & Kociolek, J.P. (2021) One new species of Cymbella C.A. Agardh (Bacillariophyta) from high altitude lakes in the Hengduan Mountains of Southwest China. Acta Botanica Croatica 80: 184–190. https://doi.org/10.37427/botcro-2021-021
  31. Round, F.E., Crawford, R.M. & Mann, D.G. (1990) The Diatoms. Biology & Morphology of the Genera. Cambridge University Press, Cambridge, 747 pp.
  32. Videska, A., Zaova, D., Naumovska, H., Kochoska, H., Mitic-Kopanja, D. & Levkov, Z. (2022) Cymbella biseriata sp. nov. - a unique living species of Cymbella Agardh (Bacillariophyceae) with biseriate striae. Phytotaxa 561: 41–52. https://doi.org/10.11646/phytotaxa.561.1.4
  33. Zhang, W., Jüttner, I., Cox, E.J., Chen, Q. & Tan, H. (2018) Cymbella liyangensis sp. nov., a new cymbelloid species (Bacillariophyceae) from streams in North Tianmu Mountain, Jiangsu province, China. Phytotaxa 348: 14–22. https://doi.org/10.11646/phytotaxa.348.1.2