Antal, N.N.AntalFiedler, H. P.H. P.FiedlerStackebrandt, ErkoErkoStackebrandtBeil, W.W.BeilStroch, K.K.StrochZeeck, AxelAxelZeeck2018-11-072018-11-072005https://resolver.sub.uni-goettingen.de/purl?gro-2/16414A new xanthone compound named retymicin (1) was isolated together with galtamycin B (2) and saquayamycin Z (3), new members of the galtamycin and saquayamycin families, respectively, and the new lumichrome derivative 1-(alpha-ribofuranosyl)-lumichrome (4) from Micromonospora strain Tu 6368, isolated from a soil sample collected in Romania. Retymicin, galtamycin B and saquayamycin Z show cytostatic effects to various human tumor cell lines whereas saquayamycin Z is also active against Gram-positive bacteria.Retymicin, galtamycin B, saquayamycin Z and ribofuranosyllumichrome, novel secondary metabolites from Micromonospora sp Tu 6368 - I. Taxonomy, fermentation, isolation and biological activitiesjournal_article15835721000227314000001