S1 Supporting information Kutznerides 1 - 4, Depsipeptides from the Actinomycete Kutzneria sp. 744 Inhabiting Mycorrhizal Roots of Picea abies Seedlings Anders Broberg †,* Audrius Menkis ‡,§ Rimvydas Vasiliauskas ‡ Department of Chemistry, Swedish University of Agricultural Sciences, P.O. Box 7015, SE- 750 07 Uppsala, Sweden. Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, P.O. Box 7026, SE-750 07 Uppsala, Sweden. Lithuanian Forest Research Institute, Liepų 1, Girionys, LT-53101 Kaunas region, Lithuania. 1 H and 13 C NMR spectra for 1 Page S2 UV spectrum for 1 Page S3 NMR data for 1 Page S4-S5 NMR data for 2 Page S6-S7 NMR data for 3 Page S8-S9 NMR data for 4 Page S10-S11 Synthesis of 3-hydroxyglutamic acid Page S12-S15 * To whom correspondence should be addressed. Telephone: +46 18 672217. Fax: +46 18 673392. Anders.Broberg@kemi.slu.se † Department of Chemistry ‡ Department of Forest Mycology and Pathology § Lithuanian Forest Research Institute