Aleksei Potekhin

Present position:

guest scientist

Research area:

Ciliate ecology and taxonomy



+43 512 507-50249


Academic History ·  Research interests · Publications



Academic History

Collaboration with

Institute of Cellular and Intracellular Symbiosis, Ural Division of Russian Academy of Sciences, Orenburg, Russia (Dr. Andrey Plotnikov)
Institute of Biology, Ecole Normale Superieure, Paris, France (Dr. Eric Meyer)
Department of Biology, University of Pisa, Pisa, Italy (Prof. Giulio Petroni)
Freiburg University, Freiburg, Germany (Dr. Martina Schrallhammer)
Wuppertal University, Wuppertal, Germany (Prof. Martin Simon)
Laboratory of Protistology, National Autonomous University of Mexico, Mexico (Dr. Rosaura Mayen Estrada)


Research interests

Genetics and genomics of ciliates; the species problem and mechanisms of speciation in Paramecium; diversity and regulation of symbioses between ciliates and bacteria; symbiotic Alphaproteobacteria.



  • Lanzoni O., Plotnikov A., Khlopko Yu., Munz G., Petroni G., Potekhin A. The core microbiome of sessile ciliate Stentor coeruleus is not shaped by the environment. 2019. Sci. Reports, 9(1):11356.

  • Nekrasova I., Nikitashina V., Bhullar S., Arnaiz O., Singh D.P., Meyer E., Potekhin A. Loss of a fragile chromosome region leads to the screwy phenotype in Paramecium tetraurelia. 2019. Genes (Basel), 10(7), pii: E513.

  • Castelli M., Sabaneyeva E., Lanzoni O., Lebedeva N., Floriano A.M., Gaiarsa S., Benken K., Modeo L., Bandi C., Potekhin A., Sassera D., Petroni G. Deianiraea, an extracellular bacterium associated with the ciliate Paramecium, suggests an alternative scenario for the evolution of Rickettsiales. 2019. ISME J. DOI: 10.1038/s41396-019-0433-9

  • Plotnikov A.O., Balkin A.S., Gogoleva N.E., Lanzoni O., Khlopko Yu.A., Cherkasov S.V., Potekhin A.A. High-throughput sequencing of the 16S rRNA gene as a survey to analyze the microbiomes of free-living ciliates Paramecium. 2019. Microbial Ecol. doi.org/10.1007/s00248-019-01321-x

  • Lanzoni O., Sabaneyeva E., Modeo L., Castelli M., Lebedeva N., Verni F., Schrallhammer M., Potekhin A., Petroni G. Diversity and environmental distribution of the cosmopolitan endosymbiont “Candidatus Megaira”. 201., Sci. Reports, 9(1):1179.

  • Potekhin A., Schweikert M., Nekrasova I., Anikina A., Vitali V., Schwartz S., Kaltz O., Petroni G., Schrallhammer M. Complex life cycle, broad host range and adaptation strategy of the intranuclear Paramecium symbiont Preeria caryophila comb. nov. 2018. FEMS Microbiol. Ecol., doi:10.1093/femsec/fiy076/4987202

  • Lanzoni O., Fokin S.I., Lebedeva N., Migunova A., Petroni G., Potekhin A. Rare freshwater ciliate Paramecium chlorelligerum Kahl, 1935 and its macronuclear symbiotic bacterium “Candidatus Holospora parva”. 2016. PLoS ONE, 11(12):e0167928.

  • Castelli M., Lanzoni O., Rossi L., Potekhin A., Schrallhammer M., Petroni G. Evaluation of enrichment protocols for bacterial endosymbionts of ciliates by real-time PCR. 2016. Curr. Microbiol., v. 72, p. 723-732.



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