Skip to main content Skip to main navigation menu Skip to site footer
Published: 2022-01-10

Mallomonas voloshkoae sp. nov. (Synurales, Chrysophyceae) and distribution of M. pechlaneri in mountain lakes of Siberia

К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Botanical Street 35, 127276, Moscow, Russia
Department of Botany, Charles University, Benatska 2, 128 00 Praha 2, Czech Republic
К.А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Botanical Street 35, 127276, Moscow, Russia
Synurales Mallomonas Striatae scale ultrastructure new species Russia Altay East Sayan Transbaikal area Algae


Mallomonas voloshkoae sp. nov. was described from Russia based on silica-scale morphology studied by means of transmission and scanning electron microscopy. This species belongs to the section Striatae and is characterised by scales with wide anterior flanges, forming wing-like extensions. This species is most similar in scale ultrastructure to M. pechlaneri. Mallomonas voloshkoae was reported in four mountain lakes of the Transbaikal area and was found in acidic to slightly acidic conditions with very low values of specific conductance. Mallomonas pechlaneri was reported in Russia for the first time. This is the first record of this species after the description of this taxon in Europe. Mallomonas pechlaneri was found in three oligotrophic habitats in the Altay and Sayan Mountain areas.


  1. Alexeev, S.V., Alexeeva, L.P., Vasil’chuk, Y.K., Svetlakov, A.A. & Kulagina, N.V. (2021) Permafrost of the Oka Plateau (Eastern Sayan Ridge). Permafrost and Periglacial Process 32: 368–391.

  2. Asmund, B. (1959) Electron microscope observations on Mallomonas species and remarks on their occurrence in some Danish ponds and lakes III. Dansk botanisk arkiv 18: 1–50.

  3. Asmund, B. & Kristiansen, J. (1986) The genus Mallomonas (Chrysophyceae). A taxonomic survey based on the ultrastructure of silica scales and bristles. Opera Botanica 85: 1–128.

  4. Balonov, I.M. & Kuzmina, A.E. (1986) Chrysophyta. In: Votinzev, K.K. (Ed.) Hydrochemical and hydrobiological studies in on the Khantay Reservoir. Nauka, Novosibirsk. 119 pp.

  5. Bessudova, A., Domysheva, V.M., Firsova, A.D. & Likhoshway, Y.V. (2017) Silica-scaled chrysophytes of Lake Baikal. Acta Biologica Siberica 3: 47–56.

  6. Bessudova, A., Sorokovikova, L.M., Tomberg, I.V. & Likhoshway, Y.V. (2018) Silica-scaled chrysophytes in large tributaries of Lake Baikal. Cryptogamie Algologie 39: 145–165.

  7. Bessudova, A., Bukin, Y.S., Sorokovikova, L.M., Firsova, A.D. & Tomberg, I.V. (2018) Silica-scaled Chrysophytes in Small Lakes of the Lower Yenisei Basin, the Arctic. Nova Hedwigia 107: 315–336.

  8. Bessudova, A., Tomberg, I.V., Firsova, A.D., Kopyrina, L.I. & Likhoshway, Y.V. (2019) Silica-scaled chrysophytes in lakes Labynkyr and Vorota of the Sakha (Yakutia) Republic, Russia. Nova Hedwigia Beiheft 148: 35–48.

  9. Bessudova, A., Bukin, Y. & Likhoshway, Y. (2021) Dispersal of Silica-Scaled Chrysophytes in Northern Water Bodies. Diversity 13: 284. 10.3390/d13070284

  10. Boenigk, J., Wodniok, S., Bock, C., Beisser, D., Hempel, C. & Grossmann, L. (2018) Geographic distance and mountain ranges structure freshwater protist communities on a European scalе. Metabarcoding Metagenomics 2: e21519.

  11. Gusev, E.S. & Kulikovskiy, M.S. (2013) A new species of the genus Mallomonas (Chrysophyceae: Synurales), Mallomonas kuzminii sp. nov., from lake Frolikha (Russia, Baikal region). Phytotaxa 155: 66–70.

  12. Gusev, E., Čertnerová, D., Škaloudová, M. & Škaloud, P. (2018) Exploring cryptic diversity and distribution patterns in the Mallomonas kalinae/rasilis species complex with a description of a new taxon Mallomonas furtiva sp. nov. Journal of Eukaryotic Microbiology 65: 38–47.

  13. Gusev, E.S., Guseva, E.E. & Gabyshev, V.A. (2018) Taxonomic composition of silica-scaled chrysophytes in rivers and lakes of Yakutia and Magadanskaya oblast (Russia). Nova Hedwigia Beiheft 147: 105–117.

  14. Harris, K. & Bradley, D.E. (1960) A taxonomic study of Mallomonas. Journal of General Microbiology 22: 750–777.

  15. Jo, B.Y., Shin, W., Boo, S.M., Kim, H.S. & Siver, P.A. (2011) Studies on ultrastructure and three-gene phylogeny of the genus Mallomonas (Synurophyceae). Journal of Phycology 47: 415–425.

  16. Jo, B.Y., Shin, W., Kim, H.S., Siver, P.A. & Andersen, R.A. (2013) Phylogeny of the genus Mallomonas (Synurophyceae) and descriptions if five new species on the basis of morphological evidence. Phycologia 52: 266–278.

  17. Kim, H.S., Kim, J.H., Shin, W. & Jo, B.Y. (2014) Mallomonas elevata sp. nov. (Synurophyceae), a new scaled Chrysophyte from Jeju Island, South Korea. Nova Hedwigia 98: 89–102.

  18. Kozhov, M.M. (1950) Fresh waters of East Siberia. Irkutskoe oblastnoye izdatelstvo. Irkutsk. 367 pp.

  19. Kristiansen, J., Düwel, L. & Wegeberg, S. (1997) Silica-scaled chrysophytes from the Taymyr Peninsula, Northern Siberia. Nova Hedwigia 65: 337–351.

  20. Kristiansen, J. & Preisig, H.R. (2007) Chrysophyta and Haptophyta Algae, 2nd part. Synurophyceae. In: Büdel, B., Gärtner, G., Krienitz, L., Preisig, H.R. & Schagerl, M. (Eds.) Süsswasserflora von Mitteleuropa (Freshwater flora of Central Europe) 1/2. Springer-Verlag, Berlin, 252 pp.

  21. Kuzmin, G.V. & Kuzmina, V.A. (1986) Species of the genus Mallomonas (Chrysophyta) from waterbodies of the Magadanskaya oblast. Russian Botanical Journal 71: 805–807.

  22. Kuzmin, G.V. & Kuzmina, V.A. (1987) Silica-scaled chrysophytes from Magadanskaya oblast. News of the taxonomy of lower plants 24: 40–42.

  23. Němcová, Y., Kreidlova, J., Pusztai, M. & Neustupa, J. (2013) Mallomonas pumilio group (Chrysophyceae/Stramenopiles) – a revision based on the scale/scalecase morphology and geometric morphometric data. Nova Hedwigia Beiheft 142: 27–49.

  24. Němcová, Y., Pichrtova, M. & Zeisek, V. (2015) Mallomonas alpestrina sp. nov. (Synurales, Chrysophyceae, Stramenopiles) and its spineless relatives - Mallomonas alata group. Phytotaxa 222: 111–120.

  25. Němcová, Y. & Rott, E. (2018) Diversity of silica-scaled chrysophytes in high-altitude Alpine sites (North Tyrol, Austria) including a description of Mallomonas pechlaneri sp. nov. Cryptogamie Algologie 39 (1): 35–62.

  26. Neustupa, J. & Němcová, Y. (2007) A geometric morphometric study of the variation in scales of Mallomonas striata (Synurophyceae, Heterokontophyta). Phycologia 46: 123–130.

  27. Perty, J.A.M. (1852) Zur Kenntniss kleinster Lebensformen nach Bau, Funktionen, Systematik, mit Specialverzeichniss der in der Schweiz beobachteten. Jent & Reinert, Bern, 228 pp.

  28. Siver, P.A. (1991) The biology of Mallomonas: morphology, taxonomy and ecology. Developments in Hydrobiology 63: 1–230.

  29. Siver, P.A. (2018) Mallomonas skogstadii sp. nov. and M. bakeri sp. nov. two new fossil species from the middle Eocene representing extinct members of the section Heterospinae? Cryptogamie Algologie 39 (4): 511–524.

  30. Silver, P.A. & Wolfe, A.P. (2010) A whole-cell reconstruction of Mallomonas porifera Siver and Wolfe from the Eocene: Implications for the evolution of chrysophyte cell architecture. Nova Hedwigia Beiheft 136: 117–127.

  31. Siver, P.A. & Wolfe, A.P. (2016) Mallomonas elephanthus sp. nov. (Synurophyceae), an extinct fossil lineage bearing unique scales from the Eocene. Nova Hedwigia 103: 211–223.

  32. Siver, P.A., Jo, B.Y., Kim, J.I., Shin, W., Lott, A.M. & Wolfe, A.P. (2015) Assessing the evolutionary history of the class Synurophyceae (Heterokonta) using molecular, morphometric, and paleobiological approaches. American Journal of Botany 102: 921–941.

  33. Voloshko, L.N. (2009) New taxa of the genus Mallomonas (Chrysophyta, Synurophyceae) from lakes of the Polar Ural. Russian Botanical Journal 94: 1068–1076.

  34. Voloshko, L.N. (2010) The chrysophycean algae from glacial lakes of Polar Ural (Russia). Nova Hedwigia Beiheft 136: 191–211.

  35. Vorobyova, S.S., Bondarenko, N.A., Karpova, S.A., Pomazkina, G.V. & Tanichev, A.I. (1992) To studies of Chrysophyta species composition of Lake Baikal. Algologia 2: 68–72. [in Russian]