ACTIONr

As part of ACTIONr closing events, we hosted a hands-on SIP (Stable Isotope Probing) Workshop in Larissa. Led by CNRS experts: Dr. Graeme Nicol and Dr. Christina Hazard. Huge thanks to all participants and trainers!

The ACTIONr project wrapped up with its Closing Meeting in Larissa, Greece (29–30 Oct 2025), with reflections on achievements and highlights from all WPs. Thank you to all partners for making this journey meaningful. Grateful for what we built and excited for what comes next.

The newest edition of the ACTIONr Network Newsletter is now available — featuring an overview of key insights and activities from across the network. Read it here: actionr.eu/actionr-newsle…

We just held our final #ACTIONr Joint Lab Meeting closing 3 great years of collaboration! Dr. Nietto (UTH) discussed protist–nitrifier interactions, Dr. Bachtsevani (Lyon) shared insights on BNIs' impact on methanotrophs. The project ends, but our collaboration continues!

On September 26, 2025, we joined Researchers’ Night in Larissa with our interactive activity Nitrogen Races! Visitors became nitrogen molecules & discovered the Nitrogen cycle in an interactive game. Thank you to everyone who joined us!

Post-conference note from MBK-CEESME 2025 (Thessaloniki, 22–24 Sep). ACTIONr contributed talks/posters on nitrification inhibitors & soil nitrifiers, plus an invited lecture by Prof. Christa Schleper. #MBKCEESME2025 #ACTIONr Recap: actionr.eu/our-team-at-th… actionr.eu/category/commu…

Proud to present ACTIONr at the Thessaloniki International Fair 2025, representing the University of Thessaly! Thanks to all who stopped by our stand 🙌

📢 ACTIONr Newsletter #05 is out! Get updates from the network & new research on Nitrification Inhibitors, events, and more. 📝 Editorial by Dr. Chiara Perruchon (UTH) 🔗 Read the full newsletter here: actionr.eu/actionr-newsle…

Insights from Our Last Joint Lab Meeting Maria Kolovou (UTH): Pesticide effects on ammonia oxidizers: lab vs. soil tests reveal key sensitivity differences. Mia Lee (Univ. of Lyon): Soil viruses interact with ammonia oxidizers & impact nitrification. A great finish before summer!

On June 27, as part of #ICoN9, ACTIONr hosted a workshop on Biological Nitrification Inhibition at the Max Planck Institute, Bremen. Talks spanned omics, SynComs, BNI persistence & plant exudates. Special thanks to our invited speakers, and to Boral Kartal for local support!

ACTIONr at ICoN9 (June 22–26, Bremen): Presenting cutting-edge research on nitrification, BNIs & pesticide effects. From SynComs & omics to soil BNI persistence & fenugreek exudates—our team showcased the science driving sustainable nitrogen solutions.

Don’t miss our next ACTIONr Webinar! Do forest trees with BNI capacity impact GHG emissions & nitrate leaching? 🎙️ Alessandro Florio (INRAE, France) 🗓️ July 4, 2025 | 🕒 14:00–15:00 CET 📩 Register: actionr@uth.gr

SPEL & ACTIONr Thematic Workshop | 20/06/2025 Topic: “Classical and Modern Trends in Nitrification Inhibitors” 📅 20 June 2025 | 13:00 | Online

The program for the NI Workshop at ICoN9 is now live! 🗓️ June 27, 2025 📍 Max Planck Institute, Bremen Invited +& contributed talks on SNIs & BNIs Program: mpi-bremen.de/en/ICoN9-Confe…

📢 Don’t miss our next ACTIONr Webinar! 🔬Soil trace gas oxidizers acclimatize to warming 🎙️ Dr. Anne Daebeler (Czech Academy of Sciences) 🗓️ May 26, 2025 | 🕓16:00–17:00 CET Το register please contact us at actionr@uth.gr

ACTIONr’s May joint lab meeting wrapped up with a talk on a topic that affects us all. PhD student Marios Valmas (UTH) shared insights on how resistant pathogens emerge and spread in soil, using advanced bioinformatics. A topic with growing importance for science and society!

The ACTIONr Summer School 2025 just finished! Huge thanks to speakers & students for an amazing week exploring Biological Nitrification Inhibition. Materials coming soon! Special thanks to @CropSustaiN for supporting student travel!

Join us for the opening lecture of the ACTIONr PhD Summer School by Prof. Christa Schleper (Univ. of Vienna)! 📅 12 May | 🕝 13:30 | 📍 Biopolis Campus, Larissa “What is wrong with the Nitrogen cycle – and how can we fix it?” 🔗 actionr.eu/actionr-phd-su…

Vivi Amanatidou & Dimitris Dalkidis (UTH) joined a 2-week training with Prof. Dr. Christa Schleper’s group @UniVienna, mastering statistical & transcriptomic data analysis in microbial ecology! 📊🧬 Big thanks to Dr. Logan Hodgskiss & the Archaea Biology and Ecogenomics Unit! 🙌

Great talks at our latest joint lab meeting! 🔹 Dr. Elena Papadopoulou (UTH) on BNI dissipation in soils 🔹 Thomas Pribasnig (UNIVIE) on nitrifying archaea biofilms Engaging topics sparking exciting research conversations!