About the Authors

Irene Granlund

Current address: Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden

Affiliation Department of Chemistry, Umeå University, Umeå, Sweden

Michael Hall

Contributed equally to this work with: Michael Hall

Affiliation Department of Chemistry, Umeå University, Umeå, Sweden

Thomas Kieselbach

Affiliation Department of Chemistry, Umeå University, Umeå, Sweden

Wolfgang P. Schröder

wolfgang.schroder@chem.umu.se

Affiliations Department of Chemistry, Umeå University, Umeå, Sweden, Umeå Plant Science Center, Umeå, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IG MH. Performed the experiments: IG MH. Analyzed the data: IG MH. Contributed reagents/materials/analysis tools: TK WPS. Wrote the paper: IG MH TK WPS.