Bacterial 2,4,6‑trimethylpyridine links locust group oviposition with predator defense
Migratory locust eggs emit the microbial volatile 2,4,6‑trimethylpyridine, attracting conspecific females through LmOR34 and LmOR36 to synchronize oviposition. The compound is produced by Enterobacter roggenkampii via lysine degradation, and its loss disrupts attraction. Beyond coordination, 2,4,6‑trimethylpyridine repels soil predators, revealing a dual reproductive and defensive signaling system.
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