• Mobile genetic elements as drivers of reductive genome evolution in Patescibacteria - PATmobile

  02.11.2026 - 01.11.2028 | 92,805.00 EUR

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• PROSPER: PROmoter Structure and Protist Evolutionary Resilience - PROSPER

  01.01.2025 - 31.12.2027 | 150,000.00 EUR

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• Introducing cap analysis of gene expression (CAGE) to the Croatian research systemas a scaffold for finding anti-tumour targets - CroAGE

  01.07.2023 - 31.07.2026 | 748,061.25 EUR

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Original scientific paper

• Matijaković Mlinarić, Nives; Mirosavljević, Marija; Kosanović, Jelena; Kajan, Katarina; Selmani, Atid̵a; Kontrec, Jasminka; Brozinčević, Andrijana; Kralj, Damir | Plitvice Lakes as a Case Study for Developing a Laboratory Model of Tufa Formation with Future Relevance to Environmental and Anthropogenic Impacts // ACS ES & T water, 6 (2026), 4; 2468-2481. doi: 10.1021/acsestwater.5c01480

  doipubs.acs.org

• Selak, Lorena; Meier, Dimitri V.; Marinović, Maja; Čačković, Andrea; Kajan, Katarina; Pjevac, Petra; Orlić, Sandi | Salinization alters microbial methane cycling in freshwater sediments // Environmental microbiome, 20 (2025), 1; 73, 14. doi: 10.1186/s40793-025-00739-w

  doienvironmentalmicrobiome.biomedcentral.comfulir.irb.hr

• Stanić, Ivana; Kajan, Katarina; Selak, Lorena; Orlić, Sandi | Environmental drivers of microbial assembly and stability in lakes across biogeographical regions // Ecological indicators, 172 (2025), 113324, 14. doi: 10.1016/j.ecolind.2025.113324

  doiwww.sciencedirect.comfulir.irb.hr

• Mihaljević, Melita; Kajan, Katarina | Disentangling the Effects of Multiple Impacts of Natural Flooding on a Riverine Floodplain Lake by Applying the Phytoplankton Functional Approach // Environments, 11 (2024), 10; 1-20. doi: 10.3390/environments11100216

  doiwww.mdpi.comwww.mdpi.com

• Vojvoda Zeljko, Tanja; Kajan, Katarina; Jalžić, Branko; Hu, Anyi; Cukrov, Neven; Marguš, Marija; Cukrov, Nuša; Marković, Tamara; Sabatino, Raffaella; Di Cesare, Andrea et al. | Genome-centric metagenomes unveiling the hidden resistome in an anchialine cave // Environmental microbiome, 19 (2024), 1; 67, 17. doi: 10.1186/s40793-024-00612-2

  doilink.springer.comfulir.irb.hr

• Hanžek, Nikola; Gligora Udovič, Marija; Kajan, Katarina; Borics, Gábor; Várbíró, Gábor; Stoeck, Thorsten; Orlić, Sandi; Stanković, Igor | Comparative identification of phytoplankton taxonomic and functional group approach in karst lakes using classical microscopy and eDNA metabarcoding for ecological status assessment // Hydrobiologia, 851 (2024), 4; 1015-1034. doi: 10.1007/s10750-023-05344-x

  doilink.springer.com

• Kajan, Katarina; Fuchs, Bernhard; Orlić, Sandi | Insight into planktonic protistan and fungal communities across the nutrient-depleted environment of the South Pacific Subtropical Gyre // Microbiology spectrum, 12 (2024), 3; e03016-23, 15. doi: 10.1128/spectrum.03016-23

  doijournals.asm.orgfulir.irb.hrfulir.irb.hr

• Kajan, Katarina; Osterholz, Helena; Stegen, James; Gligora Udovič, Marija; Orlić, Sandi | Mechanisms shaping dissolved organic matter and microbial community in lake ecosystems // Water research, 245 (2023), 120653, 14. doi: 10.1016/j.watres.2023.120653

  doiwww.sciencedirect.comfulir.irb.hr

• Kostešić, Ema; Mitrović, Maja; Kajan, Katarina; Marković, Tamara; Hausmann, Bela; Orlić, Sandi; Pjevac, Petra | Microbial Diversity and Activity of Biofilms from Geothermal Springs in Croatia // Microbial ecology, 86 (2023), 4; 2305-2319. doi: 10.1007/s00248-023-02239-1

  doilink.springer.comfulir.irb.hr

• Čačković, Andrea ; Kajan, Katarina ; Selak, Lorena ; Marković, Tamara ; Brozinčević, Andrijana ; Pjevac, Petra ; Orlić, Sandi | Hydrochemical and Seasonally Conditioned Changes of Microbial Communities in the Tufa-Forming Freshwater Network Ecosystem // mSphere, 8 (2023), 3; e00602-22, 17. doi: 10.1128/msphere.00602-22

  doijournals.asm.orgfulir.irb.hr

• Marković, Tamara ; Karlović, Igor ; Orlić, Sandi ; Kajan, Katarina ; Smith, Andrew C. | Tracking the nitrogen cycle in a vulnerable alluvial system using a multi proxy approach: Case study Varaždin alluvial aquifer, Croatia // Science of the total environment, 853 (2022), 158632, 12. doi: 10.1016/j.scitotenv.2022.158632

  doidoi.orgwww.sciencedirect.com

• Kajan, Katarina ; Cukrov, Neven ; Cukrov, Nuša ; Bishop-Pierce, Renée ; Orlić, Sandi | Microeukaryotic and prokaryotic diversity of anchialine caves from eastern Adriatic Sea islands // Microbial ecology, 83 (2022), 257-270. doi: 10.1007/s00248-021-01760-5

  doilink.springer.comfulir.irb.hr

• Jokanović, Sandra ; Kajan, Katarina ; Perović, Svetlana ; Ivanić, Maja ; Mačić, Vesna ; Orlić, Sandi | Anthropogenic influence on the environmental health along Montenegro coast based on the bacterial and chemical characterization // Environmental pollution, 271 (2021), 116383, 13. doi: 10.1016/j.envpol.2020.116383

  doiwww.sciencedirect.comdoi.org

• Hanžek, Nikola ; Gligora Udovič, Marija ; Kajan, Katarina ; Borics, Gábor ; Várbíró, Gábor ; Stoeck, Thorsten ; Žutinić, Petar ; Orlić, Sandi ; Stanković, Igor | Assessing ecological status in karstic lakes through the integration of phytoplankton functional groups, morphological approach and environmental DNA metabarcoding // Ecological indicators, 131 (2021), 108166, 13. doi: 10.1016/j.ecolind.2021.108166

  doiwww.sciencedirect.comdoi.orgfulir.irb.hr

• Kulaš, Antonija ; Gulin, Vesna ; Matoničkin Kepčija, Renata ; Žutinić, Petar ; Sertić Perić, Mirela ; Orlić, Sandi ; Kajan, Katarina ; Stoeck, Thorsten ; Lentendu, Guillaume ; Čanjevac, Ivan et al. | Ciliates (Alveolata, Ciliophora) as bioindicators of environmental pressure: A karstic river case // Ecological indicators, 124 (2021), 107430, 12. doi: 10.1016/j.ecolind.2021.107430

  doiwww.sciencedirect.comdoi.orgfulir.irb.hr

• Kulaš, Antonija ; Marković, Tamara ; Žutinić, Petar ; Kajan, Katarina ; Karlović, Igor ; Orlić, Sandi ; Keskin, Emre ; Filipović, Vilim ; Gligora Udovič, Marija | Succession of Microbial Community in a Small Water Body within the Alluvial Aquifer of a Large River // Water, 13 (2021), 2; 115, 23. doi: 10.3390/w13020115

  doiwww.mdpi.comfulir.irb.hr

• Žuna Pfeiffer, Tanja ; Špoljarić Maronić, Dubravka ; Zahirović, Vanda ; Stević, Filip ; Zjalić, Milorad ; Kajan, Katarina ; Ozimec, Siniša ; Mihaljević, Melita | Early spring flora of the Sub-Pannonic steppic grassland (NATURA 2000 site) in Bilje, northeast Croatia // Acta botanica Croatica, 75 (2016), 2; 157-163. doi: 10.1515/botcro-2016-0029

  doiwww.abc.botanic.hr

Conference abstract

• Šimunović, Maja ; Šušnjara, Mirela ; Žutinić, Petar ; Kulaš, Antonija ; Plenković-Moraj, Anđelka ; Orlić, Sandi ; Kajan, Katarina ; Valić, Damir ; Žunić, Jakov ; Goreta, Gordana et al. | Application of new tools in biomonitoring of a freshwater karstic Lake Visovac (Croatia) // European journal of phycology, 54, S1, 2019. str. 190-191

  epcseven.biol.pmf.hrwww.tandfonline.com

Unpublished conference paper

• Kajan, Katarina; Žunar, Bojan; Johnston, Alex; Trejo-Reveles, Violeta; Libby, Ashley; Briscoe, James; Meddle, Simone; Lenhard, Boris; Baranašić, Damir | Promoter architecture and transcriptional activity during early avian embryonic development // Cold Spring Harbor Laboratory Conference on Mechanisms of Eukaryotic Transcription | Cold Spring Harbor (NY), Sjedinjene Američke Države, 26.08.2025-30.08.2025

• Čačković, Andrea; Selak, Lorena; Kajan, Katarina; Mitrović, Maja; Marković, Tamara; Brozinčević, Andrijana; Pjevac, Petra; Orlić, Sandi | The spatial-seasonal differences of microbial communities in the freshwater network ecosystem // 18th International Symposium on Microbial Ecology (ISME18) | Lausanne, Švicarska, 14.08.2022-19.08.2022

• Kajan, Katarina; Osterholz, Helena; Orlić, Sandi | Influence of assembly processes on the diversity of microbial communities and dissolved organic compounds in lake ecosystems // 18th International Symposium on Microbial Ecology (ISME18) | Lausanne, Švicarska, 14.08.2022-19.08.2022

• Stanic, Ivana; Selak, Lorena; Kajan, Katarina; Čačković, Andrea; Pjevac, Petra; Orlić, Sandi | Distribution of methanotrophs along the oxycline in two lake systems // 18th International Symposium on Microbial Ecology (ISME18) | Lausanne, Švicarska, 14.08.2022-19.08.2022

• Marković, Tamara ; Karlović, Igor ; Kolarić, Josip ; Šparica Miko, Martina ; Heski, Ana-Maria ; Stanić, Nedeljko ; Pomper, Nataša ; Smith, Andrew ; Kulaš, Antonija ; Gligora Udovič, Marija et al. | Gramoznice v aluvijalnih vodonosnikih: ali so vir ali ponor onesnaženja - primer Varaždinskega vodonosnika // Hidrogeološki kolokvij i 25. Skupština društva SKIAH | Ljubljana, Slovenija, 24.11.2022-24.11.2022

Doctoral thesis

• Kajan, Katarina | Microbial communities in oligotrophic marine ecosystems / Orlić, Sandi (mentor). | Zagreb, Prirodoslovno-matematički fakultet, Zagreb, 2023