Scherling, C., Ulrich, K., Ewald, D., & Weckwerth, W. (2009). A Metabolic Signature of the Beneficial Interaction of the Endophyte Paenibacillus sp Isolate and In Vitro-Grown Poplar Plants Revealed by Metabolomics. Molecular Plant-Microbe Interactions, 22(8), 1032-1037. doi:10.1094/MPMI-22-8-1032.