Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan

Károly Pálffy, Tamás Felföldi, Anikó Mentes, Hajnalka Horváth, K. Márialigeti, Emil Boros, Lajos Vörös, Boglárka Somogyi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Winter phytoplankton communities in the shallow alkaline pans of Hungary are frequently dominated by picoeukaryotes, sometimes in particularly high abundance. In winter 2012, the ice-covered alkaline Zab-szék pan was found to be extraordinarily rich in picoeukaryotic green algae (42-82 × 106 cells ml-1) despite the simultaneous presence of multiple stressors (low temperature and light intensity with high pH and salinity). The maximum photosynthetic rate of the picoeukaryote community was 1.4 μg C μg chlorophyll a-1h-1 at 125 μmol m-2 s-1. The assimilation rates compared with the available light intensity measured on the field show that the community was considerably light-limited. Estimated areal primary production was 180 mg C m-2 d-1. On the basis of the 18S rRNA gene analysis (cloning and DGGE), the community was phylogenetically heterogeneous with several previously undescribed chlorophyte lineages, which indicates the ability of picoeukaryotic communities to maintain high genetic diversity under extreme conditions.

Original languageEnglish
Pages (from-to)111-119
Number of pages9
JournalExtremophiles
Volume18
Issue number1
DOIs
Publication statusPublished - 2014

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Light
Phytoplankton
Chlorophyta
Hungary
Salinity
Ice
rRNA Genes
Organism Cloning
Temperature
chlorophyll a

Keywords

  • Alkaline pan
  • Genetic diversity
  • Ice cover
  • Picoeukaryotes
  • Primary production
  • Winter algal bloom

ASJC Scopus subject areas

  • Molecular Medicine
  • Microbiology

Cite this

Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan. / Pálffy, Károly; Felföldi, Tamás; Mentes, Anikó; Horváth, Hajnalka; Márialigeti, K.; Boros, Emil; Vörös, Lajos; Somogyi, Boglárka.

In: Extremophiles, Vol. 18, No. 1, 2014, p. 111-119.

Research output: Contribution to journalArticle

Pálffy, K, Felföldi, T, Mentes, A, Horváth, H, Márialigeti, K, Boros, E, Vörös, L & Somogyi, B 2014, 'Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan', Extremophiles, vol. 18, no. 1, pp. 111-119. https://doi.org/10.1007/s00792-013-0602-0
Pálffy, Károly ; Felföldi, Tamás ; Mentes, Anikó ; Horváth, Hajnalka ; Márialigeti, K. ; Boros, Emil ; Vörös, Lajos ; Somogyi, Boglárka. / Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan. In: Extremophiles. 2014 ; Vol. 18, No. 1. pp. 111-119.
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