Zobrazeno 1 - 10
of 52
pro vyhledávání: '"O. S. Otroshchenko"'
Autor:
G. V. Kireev, A. S. Sadykov, Yu. V. Kurbatov, V. B. Leont'ev, O. I. Kartavtsev, O. S. Otroshchenko
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 27:696-700
A study has been made of the dehydrogenation of Hantzsch ethers by pyridlne N-oxide. A scheme proposed for this reaction shows the hydride-ion passing over into a complex of the Hantzsch ether with the N-oxide (limiting step), followed by rapid trans
Publikováno v:
Chemistry of Natural Compounds. 17:464-469
The sequence of the 27 amino acid residues composing the polypeptide moiety of the phytotoxic metabolite PKZh-1 of the fungusV. dahliae has been determined on the basis of the structures of tryptic and chymotryptic peptides. It has been established t
Autor:
S. Z. Mukhamedzhanov, N. N. Stepanichenko, A. G. Kas'yanenko, V. M. Shevtsova, O. S. Otroshchenko, L. N. Ten
Publikováno v:
Chemistry of Natural Compounds. 16:298-302
From mutants of the fungusVerticillium dahliae Kleb. having different genetic blocks in the biosynthesis of melanin we have isolated and identified scytalone, flaviolin, 4-hydroxyscytalone, and 2-hydroxyjuglone and have detected 3,4,8-trihydroxytetra
Publikováno v:
Chemistry of Natural Compounds. 18:310-314
Two dimeric proanthocyanidins have been isolated from the bark and roots of kenaf of variety Uzbekskii 1574. On the basis of chemical transformations and NMR and mass-spectral analyses it has been established that the proanthocyanidins have the struc
Autor:
V. B. Leont'ev, O. S. Otroshchenko, A. S. Sadykov, S. Z. Mukhamedzhanov, N. N. Stepanichenko, A. A. Tyshchenko
Publikováno v:
Chemistry of Natural Compounds. 11:725-728
Di-2-ethylhexyl phthalate has been isolated from the neutral lipids fraction of the culture liquid of the fungusVerticillium dahliae Kleb. Its1H and13C magnetic resonance spectra have been obtained, and an assignment of the signals has been made.
Autor:
A. G. Kas'yanenko, L. N. Ten, S. D. Gusakova, S. Z. Mukhamedzhanov, A. A. Tyshchenko, O. S. Otroshchenko, N. N. Stepanichenko
Publikováno v:
Chemistry of Natural Compounds. 13:524-527
A comparative study of the amounts of the phytotoxic pigment PKZh-1 and of extracellular and intracellular lipids in five strains and mutants ofVerticillium dahliae differing in virulence and in the nonpathogenic fungusV. lateritium has been made. A
Publikováno v:
Chemistry of Natural Compounds. 15:236-257
The review generalizes information on the composition of the lipids and the structure of the secondary metabolites of phytopathogenic Fungi Imperfecti. The chemical properties of the main classes of lipids, their biosynthesis, their interconversions,
Autor:
S. D. Gusakova, A. U. Umarov, A. A. Tyshchenko, S. Z. Mukhamedzhanov, N. Sh. Navrezova, O. S. Otroshchenko, N. N. Stepanichenko, R. Khamidova
Publikováno v:
Chemistry of Natural Compounds. 13:521-524
9,10-Dichlorostearic acid has been isolated from the lipid fraction of the mycelium ofVerticillium dahliae Kleb. and its structure has been determined on the basis of IR,1H and13C NMR, and mass spectra, and also by comparison with the spectral charac
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 29:740-746
1. The IR and UV spectra of the dipyridyl N-oxides have been obtained. The frequencies of the stretching and deformation vibrations of the C-C, C=N, C-H, and\(\mathop N\limits^ \oplus - \mathop O\limits^ \ominus \) groups have been determined and it
Autor:
A. A. Tyshchenko, N. N. Stepanichenko, O. S. Otroshchenko, S. L. Komarevtsev, S. Z. Mukhamedzhanov, A. S. Sadykov, F. G. Kamaev
Publikováno v:
Chemistry of Natural Compounds. 11:471-475
From the culture liquid of the fungusV. dahliae an extract has been isolated which contains paramagnetic centers and causes the symptoms of verticillium wilt of the cotton plant. By chromatography and1H and13C nuclear magnetic resonance it has been s