ISSN (print) 0868-8540, (online) 2413-5984
  • 1 of 7
Algologia 2018, 28(3): 237–254
Morphology, Anatomy, Cytology

On the taxonomy and nomenclature of some terrestrial taxa of Plectonema s. l. (Cyanophyceae). 1. The case of Plectonema edaphicum

Vinogradova O.N., Mikhailyuk T.I.

The paper aims to solve some of the confusions in modern interpretations and generic affiliation of two terrestrial cyanobacteria originally described as Plectonema puteale f. edaphicum Elenkin and P. boryanum f. hollerbachianum Elenkin. The first taxon was recombined soon after its validation as Plectonema edaphicum (Elenkin) Vaulina. Many authors recorded this taxon from various soils, sometimes as a dominant in xerophytic algal communities. It was also found in two caves near Haifa. We discuss here the nomenclatural history of the genus Plectonema s. l., with special reference to its above-mentioned representatives, and provide a comparison of their morphological characteristics based on published sources. It is demonstrated that, in the process of the taxonomic revision of the order Oscillatoriales and resulting nomenclatural changes, a discrepancy arose between the “classical” interpretation of these taxa and their interpretation in the Süsswasserflora von Mitteleuropa (Komárek and Anagnostidis, 2005). Based on the analysis of literature data and original research, authors argued that both taxa described by Elenkin are found in nature. These ecologically similar terrestrial cyanobacteria have clearly expressed morphological features, which help in their identification. Phylogenetic analysis using sequences of the 16S rRNA gene of original strains of these taxa made it possible to clarify their taxonomic affiliations. Strains isolated from biological crusts and identified by morphological features as Pseudophormidium hollerbachianum (Oscillatoriophycideae) and Leptolyngbya edaphica (Synechococcophycideae) in phylogenetic reconstruction both clustered in the clade of the Leptolyngbyaceae. According to SSU rRNA phylogeny, the strain Ru-1-5, morphologically identified as P. hollerbachianum, is a representative of the clade Leptolyngbya and is closely related to L. boryana. Therefore, the name Leptolyngbya hollerbachiana (Elenkin) Anagnostidis et Komárek 1988 (instead of P. hollerbachianum) better corresponds to the phylogeny of this phenotype. The sequences of L. edaphica strains isolated from terrestrial habitats joined a well-supported clade of the newly described genus Timaviella Sciuto et Moro (Sciuto et al., 2017). Based on this finding, we propose a new nomenclatural combination: Timaviella edaphica (Elenkin) O.M. Vynogr. et Mikhailyuk comb. nov.

Keywords: terrestrial cyanobacteria, Plectonema, Leptolyngbya, Pseudophormidium, taxonomy, nomenclature, SSU rRNA phylogeny, new combination, Timaviella edaphica

Full text: PDF (Rus) 2.05M

  1. Albertano P., Luongo L., Grilli-Caiola M. Nova Hedw. 1991. 53: 369–381.
  2. Anagnostidis K. Preslia (Praha). 2001. 73: 359–376.
  3. Anagnostidis K., Komárek J. Algol. Stud. 1985. 38–39: 291–302.
  4. Anagnostidis K., Komárek J. Algol. Stud. 1988. 50–53: 327–472.
  5. Bazova A.G. Soil algae of the high mountains of the Pamirs. Dushanbe: Donish, 1978. 171 p. [Rus.]
  6. Elenkin A.A. Blue-green algae of USSR. Moscow; Leningrad: Acad. Sci. USSR Publ., 1949. 919 p. [Rus.]
  7. Geitler L. Cyanophyceae. In: Rabenhorst's Kryptogamenflora. Leipzig: Acad. Verlag, 1932. Bd 14. 1196 S.
  8. Gomont M.M. Ann. Sci. Nat. Bot. 1892. 7(15): 263–368; (16): 91–294.
  9. Guiry M.D., Guiry G.M. AlgaeBase. Worlwide electronic publication. Nat. Univ. Ireland, Galway, 2018.
  10. Hollerbakh M.M. In: Identification manual of freshwater algae. Issue 2. Moscow: Sov. Nauka Publ., 1953. 450 p. [Rus.]
  11. Komárek J. In: Süsswasserflora von Mitteleuropa. Berlin; Heidelberg: Elsevier, 2013. Bd 19(3). 1130 S.
  12. Komárek J. Hydrobiologia. 2010. 639: 245–59.
  13. Komárek J., Anagnostidis K. Algol. Stud. 1986. 43: 151–226.
  14. Komárek J., Anagnostidis K. Algol. Stud. 1989. 56: 247–435.
  15. Komárek J., Anagnostidis K. Cyanoprokaryota. 1. Chroococcales. In: Süsswasserflora von Mitteleuropa. Jena, etc.: G. Fisher, 1999. Bd 19(1). 548 S.
  16. Komárek J., Anagnostidis K. In: Süsswasserflora von Mitteleuropa. München: Elsevier Spectr., 2005. Bd 19(2). 759 S.
  17. Komárek J., Kaštovský J., Mareš J., Johansen J.R. Preslia (Praha). 2014. 86(4): 295–235.
  18. Kondratyeva N.V. In: Identification manual of freshwater algae of Ukraine. Issue 1, pt 2. Kyiv: Naukova Dumka Press, 1968. 523 p. [Ukr.]
  19. Kostikov I.Yu., Romanenko P.O., Demchenko E.M., Darienko T.M., Mikhailyuk T.I. Soil Algae of Ukraine (history and methods of research, system, checklist of flora). Kyiv: Phytosociotsentr, 2001. 300 p. [Ukr.]
  20. Massyuk N.P., Guk L.C., Kostikov I.Yu., Shcherbak O.N. Probl. Obshch. Mol. Biol. 1983. 2: 76–85. [Rus.]
  21. Melnikova V.V. Soil and rock algae in the south of Central Asia. Dushanbe: Donish Publ., 1975. 210 p. [Rus.]
  22. Mikhailyuk T.I., Glaser K., Tsarenko P., Demchenko E.M., Karsten U. Eur. J. Phycol. (in press).
  23. Mikhaylyuk T.I. Algae of Kaniv Nature Reserve (Ukraine). Autoref. Diss. Cand. Biol. Sci. Kyiv, 2000. 486 p. [Ukr.]
  24. Miscoe L.H., Johansen J.R., Vaccarino M.A., Pietrasiak N., Sherwood A.R. Bibliot. Phycol. 2016. 123: 75–152.
  25. Novichkova-Ivanova L.N. Soil algae of phytocoenoses of the Saharo-Gobi desert region. Leningrad: Nauka Publ., 1980. 255 p. [Rus.]
  26. Osorio-Santos K., Pietrasiak N., Bohunická M., Miscoe L.H., Kováčik L., Martin M.P., Johansen J.R. Eur. J. Phycol. 2014. 49(4): 450–470.
  27. Prikhodkova L.P. Blue-green algae soils of the steppe zone of Ukraine. Kiev: Naukova Dumka Press, 1992. 299 p. [Rus.]
  28. Prikhodkova L.P., Vinogradova O.N. Ukr. Bot. J. 1988. 45(5): 41–45. [Ukr.]
  29. Schulz K., Mikhailyuk T., Dreßler M., Leinweber P., Karsten U. Microbiol. Ecol. 2016. 71: 178–193.
  30. Sciuto K., Moschin E., Moro I. Cryptogam. Algol. 2017. 38(4): 285–323.
  31. Starmach K. In: Flora slodkovodna Polski. Warszawa: Panstw. Wydaw. Nauk., 1966. T. 2. 807 s. [Pol.]
  32. Starmach K., Sieminska J. Arch. Hydrobiol. Suppl. 56. Algol. Stud. 1979. 22: 1–23.
  33. Turland N.J., Wiersema J.H., Barrie F.R., Greuter W., Hawksworth D.L., Herendeen P.S., Knapp S., Kusber W.-H., Li D.-Z., Marhold K., May T.W., McNeill J., Monro A. M., Prado J., Price M.J. & Smith G.F. (eds). International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159. Glashütten: Koeltz Botanical Books, 2018.
  34. Vaulina E.N. Bot. Mat. Dept. Spore Pl. 1959. 12: 19–22. [Rus.]
  35. Vinogradova O., Kovalenko O.V., Wasser S.P. Israel J. Pl. Sci. 1998. 46(3): 366–378.
  36. Vinogradova O.N. Algologia. 1999. 9(2): 25–26.
  37. Vinogradova O.N. Cyanoprokaryota of hyperhaline ecosystems of Ukraine. Kyiv: Alterpress, 2012. 200 p. [Ukr.]
  38. Vinogradova O.N. Ukr. Bot. J. 1989. 46(1): 40–45.
  39. Vinogradova O.N., Kovalenko O.V., Levanets A.A., Wasser S.P., Nevo E. Ukr. Bot. J. 2004. 61(2): 7–20.
  40. Vinogradova O.N., Wasser S.P., Nevo E. In: Cyanoprocaryotes and Algae of continental Israel (Biodiversity of cyanoprocaryotes, algae and fungi of Israel). Königstein: Koeltz. Sci. Books, 2000. Pp. 32–142.