About the Authors

Yongkyu Kim

Affiliation Max Planck Institute for Terrestrial Microbiology, Marburg, Germany

Werner Liesack

liesack@mpi-marburg.mpg.de

Affiliation Max Planck Institute for Terrestrial Microbiology, Marburg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YK WL. Performed the experiments: YK. Analyzed the data: YK. Contributed reagents/materials/analysis tools: WL. Wrote the paper: YK WL.