20.500.12556/DiRROS-28109 Chiral gliding right-handed navigation of filamentous cyanobacteria Chiral gliding: right-handed navigation of filamentous cyanobacteria Cyanobacteria are the earliest known organisms that produced oxygen through photosynthesis, leading to the oxygen atmosphere that allowed the evolution of more complex life forms. Many species of cyanobacteria exhibit gliding motility along surfaces to navigate complex environments and adapt to fluctuating conditions. Here, we studied the gliding motility of filamentous cyanobacteria Lyngbya lagerheimii at the transition between different physical environments. We show that on a dry surface, a filament adopts a curved shape that turns right while gliding. When a filament switches the gliding direction, the curvature is initially preserved and a filament can turn left as long as it backtracks along a slime trace. We propose a model of chiral motility that explains the bending based on the right-handed rotation of gliding filaments and a velocity mismatch between the leading and the trailing end of the filament. The mechanism involves a unique way of transferring the structural chirality to the macroscale and also a unique physical navigation mechanism. cianobakterije cyanobacteria filament gliding active filament true false true PNAS ZDA Angleški jezik Slovenski jezik Copyright © 2026 the Author(s). Neznano 2026-03-10 12:19:30 2026-03-10 12:19:31 2026-03-11 03:59:16 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Opis vira z dne 10. 3. 2026; str. 1-11 iss. 9, [article no.] e2534547123 Vol. 123 Mar. 3, 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-12-02 2026-01-20 2026-02-26 53 1091-6490 10.1073/pnas.2534547123 271116803 https://www.pnas.org/doi/10.1073/pnas.2534547123 1 03698d86-1c73-11f1-acf8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=41542 RAZ_Vilfan_Andrej_2026.pdf RAZ_Vilfan_Andrej_2026.pdf 1 69AF7C534C56F29C44755E6B4AE34AA0 e66fb4e610120cad31db39f81f04578b9e47a9e2333ae37f906b1c1dceb6c390 47a1e497-1c73-11f1-acf8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=41543 Institut Jožef Stefan 0 0 0