A nematode-trapping fungus orchestrates polarity cues, septins, and NOX signaling for trap formation.

Nematode-trapping fungus Arthrobotrys oligospora uses polarity cues, septins, and NOX signaling to orchestrate trap formation and host invasion.

• Why it matters: Understanding how microbial organisms reprogram their cell morphogenesis in response to environmental cues is crucial for insights into microbial adaptation and survival strategies, especially in pathogenic or predatory contexts.
• What they did: The study employed live-cell imaging, genetics, and functional assays to investigate trap morphogenesis, revealing processes like localized hyphal growth, site-specific hyphal fusion, and a transition to multipolar invasive growth, coordinated by polarity proteins, septins, actin, and Nox1 signaling.
• The result: Findings demonstrate that NTF's morphogenetic machinery enables the transition from linear hyphae to hyphal loops, providing a model for how conserved cellular components drive trap formation and nematode invasion.