Bacterial protection of beetle-fungus mutualism.

  title={Bacterial protection of beetle-fungus mutualism.},
  author={J. J. Scott and Dong-Chan Oh and Mehmet Yuceer and Kier D. Klepzig and Jon Clardy and Cameron R. Currie},
  volume={322 5898},
Host-microbe symbioses play a critical role in the evolution of biological diversity and complexity. In a notably intricate system, southern pine beetles use symbiotic fungi to help overcome host-tree defenses and to provide nutrition for their larvae. We show that this beetle-fungal mutualism is chemically mediated by a bacterially produced polyunsaturated peroxide. The molecule's selective toxicity toward the beetle's fungal antagonist, combined with the prevalence and localization of its… CONTINUE READING