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Table 2 Chemical diversity of Norway spruce mycorrhiza associated Streptomyces

From: Production of fungal and bacterial growth modulating secondary metabolites is widespread among mycorrhiza-associated streptomycetes

Strain Medium Substance based on UV–vis Measured [M + H]+ Theoretical [M + H]+ Confirmed
AcM9 SGG Unknown 180,1 n. a. n. a.
AcM11 OM Cycloheximide 282,1 282,169825 Yes
AcM11 OM Actiphenol 276,1 276,123525 Yes
AcM11 OM Acta 2930 B1 1007,5 1008,507825 No
AcM11 OM Ferulic acid 195 195,065735 Yes
AcM11 OM Unknown 292 n. a. n. a.
AcM11 OM Unknown 407 n. a. n. a.
AcM11 OM Unknown 387 n. a. n. a.
AcM20 SGG Unknown 180,1 n. a. n. a.
AcM20 OM Unknown 298 n. a. n. a.
AcM29 SGG Desferrioxamine B 561,5 561,691825 Yes
AcM29 SGG Unknown 180 n. a. n. a.
AcM29 SGG Unknown 340 n. a. n. a.
AcM29 SGG Unknown 523 n. a. n. a.
AcM29 SGG Unknown 482 n. a. n. a.
AcM29 OM Ferulic acid 195,1 195,065735 Yes
AcM29 OM Unknown 298,3 n. a. n. a.
AcM29 OM Unknown 477,3 n. a. n. a.
AcM29 OM Unknown 151,1 n. a. n. a.
AcM29 OM Unknown 217,2 n. a. n. a.
AcM30 SGG Anthranilic acid 138 138,054825 Yes
AcM30 SGG Silvalactam 637,6 637,427825 Yes
  1. The metabolite spectra of five selected Streptomyces strains were investigated. The bacteria were grown on oat meal (OM) and starch-glucose-glycerol (SGG) media. The substances were identified based on their UV–vis spectra and on their molecular mass, determined by ESI-LC-MS. The term “Confirmed” refers to verification of compound identity by comparison with the purified substance. Apart from the listed metabolites the Streptomyces strains produced the following numbers of other peaks: AcM9, five; AcM11, nine; AcM20, eight; AcM29, eleven; AcM30, six.