| 1 | Author
| GeorgeP. Demagos, Wolfgang Baltus, Gerhard Höfle | Requires cookie* | | Title
| New Anthraquinone8 and Anthraquinone Glycosides from Morinda lucida  | | | Abstract
| From the trank heartwood of Morinda lucida four new anthraquinones, 3-hydroxy-anthraquinone-2-carbaldehyde, morindone-5-methyl ether, munjistin methyl ester, damna-canthol-cu-methyl ether and two glycosides, soranjidiol 6-0-/?-primveroside and lucidin 3-0-ß-primveroside were isolated and identified by spectroscopic and chemical methods. | | |
Reference
| Z. Naturforsch. 36b, 1180—1184 (1981); received May 20 1981 | | |
Published
| 1981 | | |
Keywords
| Morinda lucida, Rubiaceae, Anthraquinones, Isolation | | |
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| default:Reihe_B/36/ZNB-1981-36b-1180.pdf | | | Identifier
| ZNB-1981-36b-1180 | | | Volume
| 36 | |
2 | Author
| T. V. Rao, U. C. Biswal | Requires cookie* | | Title
| Isolation and Respiratory A ssay o f Earthworm Body W all M itochondria  | | | Abstract
| Out o f several media tested, KC1 m edium contain ing BSA was found to be most suitable for isolation o f functionally efficient mitochondria from earthworms. Respiration and oxidative phosphorylation in isolated mitochondria are demonstrated in the presence o f cyto chrome c and BSA in reaction medium. Introduction — The details o f the respiratory m etabolism in earthworm are yet to be established. There are only a few contradictory reports on the nature o f its respiratory enzyme components [1], W hile, cytochrome oxidase, suc-cinoxidase, succinate dehydrogenase were identified in earthworm tissue homogenates, the presence o f Kreb's cycle enzymes could not be demonstrated. Very little information is available on earthworm m itochondria except one report where it is isolated in 0.44 M m annitol [2]. Mitochondria from invertebrates like insects and crustaceans are isolated and characterized [3, 4]. But such methods cannot be extended to earthworms as it is known that conditions for isolation and assay o f m itochondria are highly system specific [5]. | | |
Reference
| Z. Naturforsch. 39c, 853 (1984); received January 23 1984 | | |
Published
| 1984 | | |
Keywords
| Earthworm Mitochondria, Isolation, Respiratory Assay, Metabolism, Oxidative Phosphorylation | | |
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| default:Reihe_C/39/ZNC-1984-39c-0853_n.pdf | | | Identifier
| ZNC-1984-39c-0853_n | | | Volume
| 39 | |
3 | Author
| Ingrid Gilles, Hans-Gerd Löffler, Friedhelm Schneider | Requires cookie* | | Title
| Ein neues Isolierungsverfahren für Schweinenierenacylase. Kinetik des Co2+, M n2+, N i2+ und Cd2+-enzyms A New Isolation Procedure for Acylamino Acid Amidohydrolase. Kinetics of the Co2+, M n2+, N i2+ and C d2+ Enzyme  | | | Abstract
| A new procedure for the isolation o f highly purified acylamino acid amidohydrolase from hog kidney is d e scribed which allows the preparation o f the enzym e with a recovery o f about 45%, a 200 fold purification and a spec.activity o f 3 5 0 -5 0 0 U. The essential Zn2+ o f the enzyme was exchanged for Co2+, N i2+, M n2+ and C d2+, and the kinetic parameters K M, kCdl and kCät/ K M o f the different enzyme species for a series o f acetyl-L-amino acids were determined. | | |
Reference
| Z. Naturforsch. 39c, 1017 (1984); received June 18/July 13 1984 | | |
Published
| 1984 | | |
Keywords
| Acylamino Acid Amidohydrolase, Isolation, Metall Ion Exchange, Kinetics | | |
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| default:Reihe_C/39/ZNC-1984-39c-1017_n.pdf | | | Identifier
| ZNC-1984-39c-1017_n | | | Volume
| 39 | |
4 | Author
| Manfred Wiegand, Karl Eisele | Requires cookie* | | Title
| Isolation and Characterization of the Androgen Receptor of Murine Preputial Gland  | | | Abstract
| The androgen receptor of murine preputial gland showed in binding experiments a biphasic saturation curve and a biphasic Scatchard plot. The receptor converted from an 8.5-9 S form to a 4.5—5 S form in high ionic strength buffer. The apparent dissociation constant was K D 0.5 ± 0.2 nM for the 8.5—9 S receptor form. A 6.5—7 S receptor form could be detected in some experiments. The ligand specificity was evaluated by competition experiments: testosterone > androstene-dione > dihydrotestosterone > androstanediol > estradiol > progesterone > dexamethasone. The receptor of murine preputial gland was less stable than the androgen receptor of skeletal muscle of the same mice. | | |
Reference
| Z. Naturforsch. 43c, 117—125 (1988); received September 25 1987 | | |
Published
| 1988 | | |
Keywords
| Murine Preputial Gland, Androgen Receptor, Isolation, Characterization | | |
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| default:Reihe_C/43/ZNC-1988-43c-0117.pdf | | | Identifier
| ZNC-1988-43c-0117 | | | Volume
| 43 | |
6 | Author
| W. Ilfried Brandi, KarlH. Errm An, LutzG. Rotjahn | Requires cookie* | | Title
| Hydroxycinnamoyl Esters of Malic Acid in Small Radish {Raphanus sativus L. var. sativus)  | | | Abstract
| The esters o f /?-coumaric, ferulic and caffeic acid with m alic acid were isolated from leaves, the ester o f sinapic acid with m alic acid from cotyledons o f Raphanus sativus plants via prepara tive HPLC. The esters were identified by hydrolyses and follow ing capillary G C , by H -N M R and FAB-MS. Their concentrations in leaves and tubers were determ ined by gradient HPLC on reversed phase material. | | |
Reference
| Z. Naturforsch. 39c, 515 (1984); received March 6 1984 | | |
Published
| 1984 | | |
Keywords
| Hydroxycinnamoylmalic Acids, Isolation, Identification, Q uantitative D eterm ination, Raphanus sativus | | |
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| default:Reihe_C/39/ZNC-1984-39c-0515.pdf | | | Identifier
| ZNC-1984-39c-0515 | | | Volume
| 39 | |
7 | Author
| M. Ax Schönfelder, Ute Janott, Roland Frötschl, Karl-W Olfgang, M. Undry, G. Ünter, Adam | Requires cookie* | | Title
| Purification of Antiviral Proteins with Ribosome-Inactivating Properties from Plants  | | | Abstract
| A generally applicable highly effective purification method for antiviral plant proteins, selective for those with ribosome-inactivating properties, was developed. It involved affinity chromatography on Cibacron Blue Sepharose of the extracted plant sap after acid-ethanol precipitation and finally cation exchange chromatography on Mono S (Pharmacia). After the second chromatography step electrophoretically pure proteins from the four plant species, Chenopodium amaranticolor, Dianthus barbatus, Phytolacca americana and Spinacia oleracea, were obtained. These proteins inhibited infection of test plants with alfalfa mosaic virus and in vitro translation of TMV-RNA. The apparent molecular weights of the purified proteins were determined by SDS polyacrylamide gel electrophoresis as: 29 kDa for C. amaranticolor, 33 kDa for D. barbatus, 29 kDa for P. americana and 36 kDa for S. oleracea. Comparisons of the proteins by indirect ELISA and by Western blotting with polyclonal antisera from rabbits revealed that all four proteins were serologically related but not identical. In addition all four proteins were found to be glycosylated. | | |
Reference
| Z. Naturforsch. 47c, 731—738 (1992); received June 9/August 19 1992 | | |
Published
| 1992 | | |
Keywords
| Antiviral Activity, Ribosome-Inactivating Proteins, Isolation, Serological Comparison, Glycosylation | | |
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| default:Reihe_C/47/ZNC-1992-47c-0731.pdf | | | Identifier
| ZNC-1992-47c-0731 | | | Volume
| 47 | |
9 | Author
| RichardP. Kreher, Gerald Dyker, WilhelmP. Neumann | Requires cookie* | | Title
| Structure and Reactivity of Isoannelated Heterocyclic Systems with Ann-and (4n+2)jr-Electrons, XII [1] 2-terr-Butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indoles: Tricyclic Hetarenes with Isoannelated Pyrrole Rings  | | |
Reference
| Z. Naturforsch. 42b, 473—477 (1987); eingegangen am 14. November 1986 | | |
Published
| 1987 | | |
Keywords
| Substituted 2, 3-Dihydropyrrolo[3, 4-b]indoles, Synthesis, Isolation, Spectroscopic Properties, Cycloaddition Reactions | | |
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| default:Reihe_B/42/ZNB-1987-42b-0473.pdf | | | Identifier
| ZNB-1987-42b-0473 | | | Volume
| 42 | |
10 | Author
| RichardP. Kreher, Thomas Hildebrand | Requires cookie* | | Title
| Structure and Reactivity of Isoannellated Heterocyclic Systems with 4nji-and (4/7+2);r-Electrons, XIV [1] Tri-and Tetracyclic Hetarenes with Localized or Delocalized Pyrrole Units  | | | Abstract
| 2,7-Di-/er/-butyl-2,7-dihydro-benzo[ 1,2-c:3,4-c']dipyrrole (2b) and 2,5,8-Tri-rm-butyl-5.8-di-hydro-2H-benzo[l,2-c:3,4-c':5,6-c"]tripyrrole (3b) have been prepared by acetolysis of the cor-responding tri-and tetracyclic N-oxides, isolated in crystallinic form and characterized by spec-troscopic data. The scope of the N-oxide route is documented and the existence of benzo-annellated pyrroles is proofed. The stabilizing effect of the tert-butyl group is presumably sup-ported by the vicinal annellated heterocycles. | | |
Reference
| (Z. Naturforsch. 43b, 125—131 [1988]; eingegangen am 15. September 1987) | | |
Published
| 1988 | | |
Keywords
| Benzo-annellated Di-and Tripyrroles, Synthesis, Isolation, Spectroscopic Properties, Cycloaddition Reactions | | |
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| default:Reihe_B/43/ZNB-1988-43b-0125.pdf | | | Identifier
| ZNB-1988-43b-0125 | | | Volume
| 43 | |
11 | Author
| Susanne Valcic3, Gloria Montenegro15, Ana-Maria Mujicab, Guacolda Avilab, Scott Franzblauc, MayaP. Singhd, WilliamM. Maiesed, BarbaraN. Timmermann3 | Requires cookie* | | Title
| Phytochemical, Morphological, and Biological Investigations of Propolis from Central Chile  | | | Abstract
| Propolis from Central Chile was investigated for its plant origin by microscopical analysis of pollen grains and leaf fragments found in the sample. The pollen grains that appear with significant higher frequency in the sample corresponded to four native and two introduced species, whereas leaf fragments corresponded to four native species. Seventeen phenolic com pounds that belong to the phenylpropane, benzaldehyde, dihydrobenzofuran, or benzopyran classes, were isolated from an organic extract that was found to have a moderate growth inhibitory activity against M ycobacterium avium , M. tuberculosis, and two strains of S taphylo coccus aureus. The components responsible for activity were determined. | | |
Reference
| Z. Naturforsch. 54c, 406 (1999); received October 29 1998/February 15 1999 | | |
Published
| 1999 | | |
Keywords
| Propolis, Central Chile, Microscopical Analysis, Isolation, Phenylpropanes, Dihydrobenzofurans, Benzopyrans, Antimicrobial Activity | | |
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| default:Reihe_C/54/ZNC-1999-54c-0406.pdf | | | Identifier
| ZNC-1999-54c-0406 | | | Volume
| 54 | |
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