The cell wall anionic polymers of the 13 species of the "Streptoyces cyaneus" cluster have a similar strucutre and contain b-glucosylated 1,5-poly(ribitol phosphate) and 1,3-poly(glycerol phosphate). In the degree of glucosylation of the ribitol phosphate units of their teichoic acids, the cluster members can be divided into two groups. The streptomycetes of the first group (S. afghaniensis, S. janthinus, S. purpurascens, S. roseoviolaceus, and S. violarus) are characterized by a very similar structure of their cell walls, completely glucosylated 1,5-poly(ribitol phosphate) chains, and a high degree of NMAhomology (67-88%). The cell wall teichic acids of the second group (S. azureus, S. bellus, S. caelestis, S. coeruleorubidus, S. curacoi, and S. violarus) differ in the degree of b-blucosylation of their 1,5-poly(ribitol phosphate) chains and have a lower level of DNA homology (54-76%). Two streptomycetes of the cluster (S. cyaneus and S. hawaiiensis) are genetically distant from the other cluster members byt have the same composition and structure of the cellwall teichoic acids as the second-group streptomycetes. the data botained confirm the genetic relatedness of the "S. cyaneus" cluster members and suggest that the structure of the cell wall teichoic acids mey serve as one of the taxonomic criteria of the species-level status of streptomycetes.
structure, cluster, teichoic acid, cell wall polysaccharides, taxonomic, teichuronic acid, Streptomyces
NCBI PubMed ID: 11558273Journal NLM ID: 0376652Publisher: Moskva: Izdatelstvo Nauka
Correspondence: naumova@microbiol.cio.msu.su
Institutions: Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia, Faculty of Biology, Moscow State University, Vorob'evy gory, Moscow, 119899 Russia, Skryabin Institute of Biochemisty and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino, Moscow ablast, 142290 Russia
Methods: NMR
Found