New records and morphology of chrysophyte alga Uroglena kukkii (Ochromonadales, Uroglenaceae) in Russia

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Resumo

A rare chrysophyte species, Uroglena kukkii , was recorded in the waterbodies of the mountain forest zone of the South Urals. Described from Estonia, this species was first recorded in Russia in St. Petersburg. The second Russian discovery of the species U. kukkii indicates a wider distribution of the species. The morphology of the colonies and stomatocysts of U. kukkii was studied using light and electron microscopy. This paper compares the morphological characteristics of U. kukkii stomatocysts from the two habitats in Russia with samples from the type locality, and specifies the conditions for the mass formation of the stomatocysts.

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Sobre autores

L. Snitko

South Ural Scientific Centre of Mineralogy and Environmental Geology of the Ural Branch RAS

Autor responsável pela correspondência
Email: lvs223@yandex.ru
Rússia, Miass, Chelyabinsk Region, 456317

T. Safronova

Komarov Botanical Institute RAS

Email: lvs223@yandex.ru
Rússia, Prof. Popov Str., 2, St. Petersburg, 197022

I. Blinov

South Ural Scientific Centre of Mineralogy and Environmental Geology of the Ural Branch RAS

Email: lvs223@yandex.ru
Rússia, Miass, Chelyabinsk Region, 456317

V. Snitko

South Ural Scientific Centre of Mineralogy and Environmental Geology of the Ural Branch RAS

Email: lvs223@yandex.ru
Rússia, Miass, Chelyabinsk Region, 456317

Bibliografia

  1. Cronberg G. 1992. Uroglena dendracantha n. sp. (Chrysophyceae) from Central Småland, Sweden. – Nordic Journal of Botany. 12: 507–512. h ttps://doi.org/10.1111/j.1756-1051.1992.tb01829.x
  2. Cronberg G., Laugaste R. 2005. New species of Uroglena and Ochromonas (Chromulinales, Chrysophyceae) from Estonia. – Nova Hedwigia, Beiheft. 128: 43–63.
  3. Kapustin D.A., Safronova T.V., Kulikovskiy M.S. 2022. New records of a rare chrysophyte species Uroglena kukkii (Ochromonadales, Uroglenaceae) outside the type locality. – Novosti Sist. Nizsh. Rast. 56(2): 273–278. h ttps://doi.org/10.31111/nsnr/2022.56.2.273
  4. Pusztai M., Škaloud P. 2019. Elucidating the evolution and diversity of Uroglena -like colonial flagellates (Chrysophyceae): polyphyletic origin of the morphotype. – European Journal of Phycology. 54: 404–416. h ttps://doi.org/10.1080/09670262.2019.1574030
  5. Pusztai M., Škaloud P. 2022. Species delimitation within the colonial flagellates Uroglena, Uroglenopsis and Urostipulosphaera (Chrysophyceae). – European Journal of Phycology. 57: 79–95. h ttps://doi.org/10.1080/09670262.2021.1892196
  6. Snitko L.V., Snitko V.P. 2013. Phytoplankton of deep-water lakes of Southern Ural (Russia) in high-level water. – International Journal on Algae. 15(1): 26–35. h ttps://doi.org/10.1615/InterJAlgae.v15.i1.20
  7. Snit’ko L.V., Snit’ko V.P. 2014. Phytoplankton as an indicator in assessing long-term variations in water quality of Lakes Bolshoe Miassovo and Turgoyak, the South Urals. – Water Resources. 41(2): 210–217. h ttps://doi.org/ 10.1134/S0097807814020146
  8. Snit’ko L.V., Snit’ko V.P. 2019. Taxonomic structure and ecology of phytoplakton in small forest lakesin the zone of technogenesis of sulfide deposits (Southern Urals). – Inland Water Biology. 12(4): 393–400. h ttps://doi.org/10.1134/S1995082919040151
  9. Snitko L.V., Safronova T.V., Blinov I.A., Snitko V.P. 2021. New species of Synura section Synura (Chrysophyceae, Synurales, Synuraceae) in waterbodies of the South Urals. – Bot. Zhurn. 106(11): 1101–1112 (In Russ.). h ttps://doi.org/ 10.31857/S0006813621110107
  10. Snitko L.V., Safronova T.V., Snitko V.P. 2022. Chrysophycean algae (Chrysophyceae) in waterbodies of the South Urals and Transural Plateau. Genus Synura (Synuraceae) Section Petersenianae. – Bot. Zhurn . 107(4): 333–349 (In Russ.). h ttps://doi.org/10.31857/S0006813622030061

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2. Fig. 1. Uroglena kukkii stomatocysts (SEM) from Russia: а , b , c – from Figurnyi Pond of the Peter the Great Botanical Garden, St. Petersburg; the South Ural population: d , е , f , i – from Koshkul Lake; g – from the Sorokina River; j , k , l – from city beach pond (Lake Turgoyak derivate); h – from Sirikkul Lake. Scale bars: 5 μm.

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3. Fig. 2. Colonies of Uroglena kukkii , LM. Т he South Ural population: а – colony; b , d – colonies showing cells in the process of stomatocyst formation; e – stomatocysts. St. Petersburg: c – colonies showing cells in the process of stomatocyst formation in division stage from Figurnyi Pond of the Peter the Great Botanical Garden. Scale bars: а – 10 μ m, b , c , d – 50 μ m, e – 20 μ m.

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