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Angelina Tittmann

Hidden networks: aquatic fungi at Expo 2025

Aquatic fungi are among the least studied organism groups on Earth, yet they play a vital role in maintaining the ecological balance in our waters. Thriving in puddles, oceans, ice, and snow, they break down organic material, form symbiotic networks, and can even help to decompose plastics. Researchers refer to them as 'microbial dark matter' because many of their species remain barely identified. Hans-Peter Grossart from IGB is one of the few global experts in this field. Together with his team, he cultivates fungal cultures from lakes to better understand their role in nutrient cycles – and to make them visible. High-resolution images of their work form the basis of an extraordinary art project at Expo 2025 in Osaka.
fungal strain under the microscope

Shot from 'Fungal Entanglement'. | © Helga Griffiths

The video project Fungal Entanglement by media artist Helga Griffiths will premiere at the German Pavilion during the Expo 2025. The work combines high-resolution footage from fungal research with AI-generated elements to draw parallels with neuronal networks and natural matter cycles.

The visual work is accompanied by a specially composed soundscape by composer Johannes S. Sistermanns, which opens emotional pathways to this otherwise hidden world through instrumental and electronic sounds. The result is an impressive visual and auditory experience that merges science, technology, and art.

“We are at the beginning of our research into aquatic fungi,” said Professor Hans-Peter Grossart. “But the deeper we dive, the clearer their significance becomes for nutrient cycles, biodiversity – and perhaps even for future technological innovations.”

Fungal Entanglement invites us to reconsider the role of these fascinating microorganisms: as ecologically significant network architects and as a source of artistic inspiration.

Amazing facts about fungi > 

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