biologically active compound;
biosynthesis;
cyanobacteria;
peptides and polypeptides;
D O I:
10.1016/S0040-4020(99)01017-0
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
For the elucidation of the biosynthetic relationship between non-toxic and hepatotoxic peptides produced by cyanobacteria, we compared the secondary metabolites from the toxic and non-toxic cyanobacteria, Oscillatoria (Planktothrix) agardhii. Three groups of peptides, cyclic depsipeptides having a 3-amino-6-hydroxy-2-piperidone moiety, a cyclic nonapeptide and cyclic peptides possessing an ureido linkage were isolated together with microcystins from the toxic O. agardhii strains 97 and CYA128. A tricyclic peptide composed of 14 amino acid residues was isolated from the non-toxic O. agardhii strains 2 and 18. (C) 2000 Elsevier Science Ltd. All rights reserved.