About the Authors

Quan Yuan

Affiliation Max-Planck-Institute for Terrestrial Microbiology, Marburg, Germany

Judith Pump

Affiliation Max-Planck-Institute for Terrestrial Microbiology, Marburg, Germany

Ralf Conrad

conrad@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: QY RC. Performed the experiments: QY. Analyzed the data: QY RC. Contributed reagents/materials/analysis tools: JP. Wrote the paper: QY RC.