About the Authors

Christine M. Palmer

Affiliation Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, United States of America

Maria N. Hindt

Affiliation Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, United States of America

Holger Schmidt

Affiliation Department of Plant Physiology, University of Bayreuth, Bayreuth, Germany

Stephan Clemens

Affiliation Department of Plant Physiology, University of Bayreuth, Bayreuth, Germany

Mary Lou Guerinot

Guerinot@Dartmouth.edu

Affiliation Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CMP MLG. Performed the experiments: CMP MNH HS. Analyzed the data: CMP MNH MLG HS SC. Contributed reagents/materials/analysis tools: CMP MNH HS. Wrote the paper: CMP MNH MLG.