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JunProf. Dr. Martina Schrallhammer


JunProf. Dr.
Martina Schrallhammer

Institute of Biology II

Group: Endosymbiosis

Phone: +49 (0)761 203-2638



Focus of research

  • Interactions between ciliate hosts, their symbionts and the environment
  • Genomics and transcriptomics of symbiotic interactions
  • Biodiversity of ciliates and their symbionts


  • 2018 Positive interim evaluation of the W1-Juniorprofessorship
  • Since 2014 Juniorprofessor (W1) of Microbiology, Biological Institute II, University of Freiburg
  • 2010-2014 PostDoc at the Institute for Hydrobiology, Technical University of Dresden
  • 2010 PhD in Biology, University of Stuttgart
  • 2007-2009 Graduate school in Biology, University of Pisa, Italy
  • 2005-2006 Research Associate in the Division Zoology, University of Stuttgart
  • 2000-2005 Study of Biology at the Technical University of Munich

Selected publications

  • Potekhin A, Schweikert M, Nekrasova I, Vitali V, Schwarzer S, Anikina A, Kaltz O, Petroni G, Schrallhammer M*. Complex life cycle, broad host range and adaptation strategy of the intranuclear Paramecium symbiont Preeria caryophila comb. nov. FEMS Microbiology Ecology, 94(7). doi: 10.1093/femsec/fiy076
  • Schrallhammer M*, Castelli M, Petroni G. 2018. Phylogenetic relationships among endosymbiotic R-body producer: bacteria providing their host the killer trait. Systematic and Applied Microbiology, 41(3):213-220. doi: 10.1016/j.syapm.2018.01.005.
  • Grosser K, Ramasamy P, Amirabad AD, Schulz MH, Gasparoni G, Simon M, Schrallhammer M*. 2018. More than the ‘killer trait’: infection with the bacterial endosymbiont Caedibacter taeniospiralis causes transcriptomic modulation in Paramecium host. Genome Biology and Evolution, 10(2):646-656. doi: 10.1093/gbe/evy024.
  • Bella C1, Koehler L1, Grosser K, Berendonk TU, Petroni G, Schrallhammer M*. 2016. Fitness impact of obligate intranuclear bacterial symbionts depends on host growth phase. Frontiers in Microbiology, 7:2084. doi: 10.3389/fmicb.2016.02084
  • Schrallhammer M1,*, Ferrantini F1, Vannini C, Galati S, Schweikert M, Görtz HD, Verni F, Petroni G. 2013. 'Candidatus Megaira polyxenophila' gen nov, sp nov: considerations on evolutionary history, host range and shift of early divergent Rickettsiae. PLoS One, 88: e72581 doi:101371/journalpone0072581

* corresponding author
1 these authors share first authorship


[Link to complete publication list]

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