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Algologia 2019, 29(2): 233–240
https://doi.org/10.15407/alg29.02.233
New Taxa and Noteworthy Records

Thalassiosira duostra C.Pienaar (Bacillariophyta) – a new species for the flora of Ukraine

Genkal S.I.
Abstract

The study of archive materials has made it possible to specify the species composition of the genus Thalassiosira. In the Danube region of the Black Sea, a representative of Centrophyceae (Thalassiosira duostra Pienaar), which is new for the flora of Ukraine, was discovered. In the analyzed material, the number of central fultoportulae was greater than in the original description, and they are arranged in a circular pattern. However, all quantitative (valve diameter, number of central and marginal fultoportulae) and qualitative (areolae shape and their arrangement on the valve face) characteristics correspond to the published data. According to the general valve outline, the structure and arrangement of central and marginal fultoportulae as well as quantitative characteristics, T. duostra is very similar to Сonticribra weissflogii and Thalassiosira faurii, which may have caused inaccuracies in these species' identification Bacillariophyta, Thalassiosira, morphology of frustule, scanning electron microscopy, Ukraine.

Keywords: Bacillariophyta, Thalassiosira, morphology of frustule, scanning electron microscopy, Ukraine

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References
  1. Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. 2009. Eds P.M. Tsarenko, S.P. Wasser, E. Nevo. Ruggell: A.R.G. Gantner Verlag K.-G. Vol. 2. 413 p.
  2. Balonov I.M. 1975. In: Methods of studying the biogeocenoses of inland waters. Moscow: Nauka Press, Pp. 87–89. [Rus.]
  3. Genkal S.I. 2007. Morphological variability and taxonomy of Thalassiosira faurii (Gasse) Hasle (Bacillariophyta). Nov. Sist. Nizshikh. Rast. 41: 26–33.
  4. Genkal S.I. 2011. To the morphology, taxonomy and distribution in Russia of Thalassiosira bramaputrae and Th. lacustris (Bacillariophyta). Nov. Sist. Nizshikh. Rast. 45: 20–26.
  5. Genkal S.I., Golokolenova T.B. 2011. Centric diatom algae Tsimlyansk reservoir. Povolzhskiy ekol. J. (3): 178–189.
  6. Genkal S.I., Kulikovskiy M.S. 2009. To the morphology, ecology and distribution of Thalassiosira weissflogii (Bacillariophyta). Povolzhskiy ekol. J. 3: 183–189.
  7. Genkal S.I., Okhapkin A.G. 2013. Centric diatoms (Centrophyceae) of the lower reaches of the Oki River (Russian Federation). Hydrobiol. J. 1: 44–61.
  8. Genkal S.I., Terenko L.M. 2014. New data on the flora of centric diatoms (Centrophyceae) of the Black Sea. Hydrobiol. J. 2: 38–49.
  9. Genkal S.I., Terenko L.M., Nesterova D.A. 2009. New data on the flora of centric diatoms (Centrophyceae) in the Danube region of the Black Sea. Hydrobiol. J. 45: 52–72. https://doi.org/10.1615/HydrobJ.v45.i6.40
  10. Genkal S.I., Shcherbak V.I., Maystrova N.V. 2007. Nov. Sist. Nizshikh. Rast. 41: 26–33.
  11. Kiss K.T., Ács E., Klee R. 2000. In: 19eColloque de l'Association des Diatomistesde Langue Française (Mont-Rigi, 12-15 Sept., 2000). Abstract. Mont-Rigi. Pp. 8–9.
  12. Kiss K.T., Klee R., Ector L., Ács É. 2012. Centric diatoms of large rivers and tributaries in Hungary: morphology and biogeographic distribution. Acta Bot. Croat. 71(2): 311–363. https://doi.org/10.2478/v10184-011-0067-0
  13. Kiss K.T., Ács E., Houk É.V., Marvan P., Ector L. 2001. In: 12th Hungarian algological meeting (Pécs, 15-18 May, 2001). Abstract. Pécs, Hungary. Pp. 28.
  14. Pienaar C., Pieterse A.J.H. 1990. Thalassiosira duostra sp. nov. a new freshwater centric diatom from the Vaal River, South Africa. Diatom Res. 5(1): 105–111. https://doi.org/10.1080/0269249X.1990.9705096
  15. Roubeix V., Chalié F., Gasse F. 2014. The diatom Thalassiosira faurii (Gasse) Hasle in the Ziway-Shala lakes (Ethiopia) and implications for paleoclimatic reconstructions: Case study of the Glacial-Holocene transition in East Africa. Palaeogeography, Palaeclimatology, Palaeoecology. 402: 104–112. https://doi.org/10.1016/j.palaeo.2014.03.014
  16. Stachura-Sushoples K., Williams D.M. 2009. Description of Conticribra tricircularis, a new genus and species of Thalassiosirales, with a discussion on its relationship to other continuous cribra species of Thalassiosira Cleve (Bacillariophyta) and its freshwater origin. Eur. J. Phycol. 44(4): 477–486. https://doi.org/10.1080/09670260903225431
  17. Torgan L.C., Vieira A.A.H., Giroldo D., Santos C.B. 2006. In: Eighteenth International Diatom Symposium (Miedzyzdroje, Poland). Miedzyzdroje. Pp. 407–416.