, Volume 586, Issue 1, pp 107–116

Pseudotetraëdriella kamillae: taxonomy and ecology of a new member of the algal class Eustigmatophyceae (Stramenopiles)

Primary Research Paper

DOI: 10.1007/s10750-006-0566-5

Cite this article as:
Hegewald, E., Padisák, J. & Friedl, T. Hydrobiologia (2007) 586: 107. doi:10.1007/s10750-006-0566-5


A new family Loboceae E. Hegewald, a new genus Pseudotetraëdriella E. Hegewald, and a new species Pseudotetraëdriella kamillae E. Hegewald et J. Padisák are described. The species differs markedly from the described species with tetralobular/quadrangular shape like Tetraëdron (Chlorophyta) or Tetraëdriella (Xanthophyceae); differences to other morphologically similar species (Tetraëdron minimum f. brachiata Printz, T. minimum f. tetralobulatum Reinsch, T. minutissimum Korsh., T. mediocris Hindák, T. quadrilobatum G. M. Smith, T. regulare Kützing, Tetraëdriella jovetii (Bourr.) Bourr. (=Pseudostaurastrum jovetii Bourr., Polyedrium minimum f. tetralobula Reinsch) are discussed. 18S rDNA sequence analyses demonstrated its close relationship with a morphologically different, aerophytic species, Monodopsis subterranea, within the class Eustigmatophyceae (Heterokontophyta). Pseudotetraëdriella kamillae is typically occurring in the cold season (autumn-winter-spring), commonly in small amounts. Quantitative data from the stratifying, oligotrophic Lake Stechlin, N. Germany show that the population growths in the early spring isothermal period with an estimated doubling time of 46 days. Being a non-motile species, its abundance falls below detection level during the stratification period. In the period 1995–2002 with weekly-biweekly sampling its maximum abundance was recorded as 2.24 μg L-1, corresponding to 0.41% of total biomass.


EustigmatophyceaeLoboceaePseudotetraëdriellaStrainsTaxonomy18S rDNAMorphologyNew taxon

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Eberhard Hegewald
    • 1
  • Judit Padisák
    • 2
    • 3
  • Thomas Friedl
    • 4
  1. 1.Institute of Chemistry and Dynamics of the Geosphere III (Phytosphere)Research Centre JülichJülichGermany
  2. 2.Department of LimnologyUniversity of PannoniaVeszpremHungary
  3. 3.Department of Stratified LakesLeibniz-Institute of Freshwater Ecology and Inland FisheriesStechlin-NeuglobsowGermany
  4. 4.Department of Experimental Phycology and Culture Collection of AlgaeAlbrecht-von-Haller InstituteGoettingenGermany