• Serra, V., Gammuto, L., Nitla, V., Castelli, M., Lanzoni, O., Sassera, D., ... & Petroni, G. (2020). Morphology, ultrastructure, genomics, and phylogeny of Euplotes vanleeuwenhoeki sp. nov. and its ultra-reduced endosymbiont “Candidatus Pinguicoccus supinus” sp. nov. Scientific reports, 10(1), 20311.

• Pasqualetti, C., Szokoli, F., Rindi, L., Petroni, G., & Schrallhammer, M. (2020). The obligate symbiont “Candidatus Megaira polyxenophila” has variable effects on the growth of different host species. Frontiers in Microbiology, 11, 1425.

• Flemming, F. E., Potekhin, A., Pröschold, T., & Schrallhammer, M. (2020). Algal diversity in Paramecium bursaria: species identification, detection of Choricystis parasitica, and assessment of the interaction specificity. Diversity, 12(8), 287.

• Serra, V., D’Alessandro, A., Nitla, V., Gammuto, L., Modeo, L., Petroni, G., & Fokin, S. I. (2021). The neotypification of Frontonia vernalis (Ehrenberg, 1833) Ehrenberg, 1838 and the description of Frontonia paravernalis sp. nov. trigger a critical revision of frontoniid systematics. BMC Zoology, 6, 1-33.

• Serra, V., Fokin, S. I., Gammuto, L., Nitla, V., Castelli, M., Basuri, C. K., ... & Petroni, G. (2021). Phylogeny of Neobursaridium reshapes the systematics of Paramecium (Oligohymenophorea, Ciliophora). Zoologica Scripta, 50(2), 241-268.

• Castelli, M., Lanzoni, O., Nardi, T., Lometto, S., Modeo, L., Potekhin, A., ... & Petroni, G. (2021). ‘Candidatus Sarmatiella mevalonica’endosymbiont of the ciliate Paramecium provides insights on evolutionary plasticity among Rickettsiales. Environmental Microbiology, 23(3), 1684-1701.

• Fokin, S. I., & Serra, V. (2022). Bacterial symbiosis in ciliates (Alveolata, Ciliophora): Roads travelled and those still to be taken. Journal of Eukaryotic Microbiology, 69(5), e12886.

• Castelli, M., Lanzoni, O., Giovannini, M., Lebedeva, N., Gammuto, L., Sassera, D., ... & Petroni, G. (2022). ‘Candidatus Gromoviella agglomerans’, a novel intracellular Holosporaceae parasite of the ciliate Paramecium showing marked genome reduction. Environmental microbiology reports, 14(1), 34-49.

• Castelli, M., Serra, V., Gammuto, L., Senra, M. V., Modeo, L., & Petroni, G. (2022). Characterization of a Pseudokeronopsis Strain (Ciliophora, Urostylida) and Its Bacterial Endosymbiont “Candidatus Trichorickettsia”(Alphaproteobacteria, Rickettsiales). Diversity, 14(12), 1032.

• Melekhin, M., Yakovleva, Y., Lebedeva, N., Nekrasova, I., Nikitashina, L., Castelli, M., ... & Potekhin, A. (2022). Cryptic diversity in Paramecium multimicronucleatum revealed with a polyphasic approach. Microorganisms, 10(5), 974.

• Ma, M. Z., Liu, Y. J., Xu, Y., Lu, B. R., Li, Y. Q., Al-Farraj, S. A., ... & Yan, Y. (2022). Molecular phylogeny and taxonomy of four Remanella species (Protozoa, Ciliophora): A flagship genus of karyorelictean ciliates, with descriptions of two new species. Zoological Research, 43(5), 827.

• Fokin, S. I., Serra, V., Gammuto, L., Allievi, A., Petroni, G., & Modeo, L. (2023). Multidisciplinary characterization of the new species Copemetopus mystakophoros and its symbionts with a proposal for the new class Copemetopea (Alveolata: Ciliophora). Zoological Journal of the Linnean Society, zlac114.

• Fokin, S. I., Lebedeva, N. A., Potekhin, A., Gammuto, L., Petroni, G., & Serra, V. (2023). Holospora-like bacteria “Candidatus Gortzia yakutica” and Preeria caryophila: ultrastructure, promiscuity, and biogeography of the symbionts. European Journal of Protistology, 125998.

• Ye, T., Song, W., Li, Y., Al-Rasheid, K., Serra, V., & Ma, M. (2023) Morphology and phylogeny of four trachelocercid ciliates (Ciliophora, Karyorelictea, Trachelocercidae) from North China Sea, with description of a new species. European Journal of Protistology

• Castelli, M., Nardi, T., Gammuto, L., Bellinzona, G., Sabaneyeva, E., Potekhin, A., ... & Sassera, D. (2024). Host association and intracellularity evolved multiple times independently in the Rickettsiales. Nature Communications, 15(1), 1093.

• Serra et al., bioRxiv 2019: Next generation taxonomy: integrating traditional species description with the holobiont concept and genomic approaches - The in-depth characterization of a novel Euplotes species as a case study

still to come