15/10/2025
🐝 Honeybee pollen hides a secret weapon — natural antibiotic bacteria.
Honeybee pollen may hold the secret to safer, natural antibiotics, and not just for bees, but for crops too.
Scientists at Washington College and the University of Wisconsin–Madison discovered that pollen collected by honeybees is packed with Streptomyces bacteria, a group known for producing two-thirds of the world’s antibiotics.
As bees gather pollen from flowers, they unknowingly transport these beneficial microbes back to their hives. Once stored, the bacteria begin producing natural compounds that defend against harmful fungi and bacteria — effectively turning the hive’s pollen stores into microbial fortresses.
The study found that these same Streptomyces strains occur both on flowers and inside hives, and they’re potent defenders against pathogens that threaten honeybees and crops alike. In lab tests, they inhibited diseases like stonebrood, which affects bees, and bacterial blights that harm plants. Researchers say the discovery could transform how we protect pollinators and agriculture — replacing chemical treatments with nature’s own microbial allies. A diverse landscape of flowering plants may also boost bee health by offering a wider variety of these protective bacteria, strengthening the link between ecosystem diversity and pollinator resilience.
Source: Reichardt, C., et al. “Endophytic Streptomyces from honeybee hives inhibit plant and honeybee pathogens.” Frontiers in Microbiology, August 4, 2025.
