Characterization of photoautotrophic microbial communities in the coastal water of Lake Baikal

Authors

  • Belykh, O. I. 1
  • Tikhonova, I. V. 1
  • Krasnopeev, A. Yu. 1
  • Galachyants, A. D. 1
  • Sukhanova, E. V. 1
  • Suslova, M. Yu. 1
  • Gorshkova, A. S. 1
  • Gevorgyan, G. 2
  • Potapov, S. A. 1
    • 1 Limnological Institute, Siberian Branch of the Russian Academy of Sciences, Ulan-Batorskaya Str., 3, Irkutsk, 664033, Russia
    2 Scientific Center of Zoology and Hydroecology, National Academy of Sciences of Republic of Armenia, Paruyr Sevak str. 7, 0014, Yerevan, Armenia

DOI:

https://doi.org/10.31951/2658-3518-2020-A-4-966

Keywords:

cyanobacteria, algae, 16S rRNA, RuBisCO, high throughput sequencing, Lake Baikal

Abstract

In this study, we determined the concentration of chlorophyll a in biofilms formed on rocky substrates, in the surface water microlayer, water column, and near-bottom water layer of the coastal zone of Lake Baikal. High throughput sequencing of 16S rRNA and rbcL gene libraries revealed high genetic and taxonomic diversity of photoautotrophic microbial communities in the studied ecotopes of the lake. The UPGMA analysis indicated that the composition of photoautotrophic communities largely depends on both the geographical location and ecotope. Using electron microscopy, we described the structure and composition of biofilms.

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Published

2020-09-09

Issue

2020: №4 (SI:BSM2020)

Section

Articles

License

Creative Commons License
This work is distributed under the Creative Commons Attribution-NonCommercial 4.0 International License.