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1Author    Armin Traub, Hans GeigerRequires cookie*
 Title    Nachweis  
 Abstract    von,-Pentahydroxy-flavanon-5-glucosid in den Samen von G a le g a o f f ic in a lis L. (Fabaceae) Detection of 2,5,7,3/,4/-Pentahydroxy-flavanone-5-glucoside in the Seeds of Galega officinalis L. (Fabaceae) 
  Reference    (Z. Naturforsch. 30c, 823 [1975]; eingegangen am 14. Juli 1975) 
  Published    1975 
  Keywords    Galega officinalis L, Fabaceae, 2, 5, 7, 3', 4'-Pentahydroxy flavanon, 2, 4, 6, 3', 4'-Pentahydroxydibenzoylmethane, Flavonoids, Glycosides 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0823_n.pdf 
 Identifier    ZNC-1975-30c-0823_n 
 Volume    30 
2Author    Tassilo Seeger, Hans Geiger, Hans Dietm Ar Zinsmeister, Jan-Peter Frahm, Ludger WitteRequires cookie*
 Title    3',3"'-Binaringenin, a New Biflavonoid from Pilotrichella cuspidata (Meteoriaceae, Musci)  
 Abstract    From Pilotrichella cuspidata the new biflavonoid 3',3"'-binaringenin was isolated. Its struc­ ture was elucidated spectroscopically. 
  Reference    Z. Naturforsch. 47c, 667 (1992); received July 1 1992 
  Published    1992 
  Keywords    Musci, Meteoriaceae, Pilotrichella cuspidata, 3', 3"'-Binaringenin, Biflavonoid 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0667.pdf 
 Identifier    ZNC-1992-47c-0667 
 Volume    47 
3Author    E. Ckhard, W. Ollenw Eber, K. Arin, M. AnRequires cookie*
 Title    A M yricetin Tetram ethyl Ether from the L eaf and Stem Surfaces o f Tillandsia usneoides  
 Abstract    Myricetin-3,7,3',4'-tetramethyl ether has been isolated as an aglycone from the acetone wash of Tillandsia usneoides. It is thus shown to be deposited externally, on leaf and stem surfaces. We suggest that the previously re­ ported lipophilic flavonoids from this and other species are also exudate constituents. 
  Reference    Z. Naturforsch. 47c, 638—639 (1992); received May 5 1992 
  Published    1992 
  Keywords    Tillandsia usneoides, Bromeliaceae, Exudate Flavonoids, Myricetin-3, 7, 3', 4'-tetramethyl Ether 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0638_n.pdf 
 Identifier    ZNC-1992-47c-0638_n 
 Volume    47 
4Author    Boris Janistyn, M. Artha StockerRequires cookie*
 Title    Enzymatischer Abbau von [Ring B-U-14C]-5.7.3'.4'-Tetrahydroxy- flavanon-7-O-glucosid zu 5.7-Dihydroxychromon-7-0-glucosid und [Ring-U-14C]-1.2.4-Trihydroxybenzol mit einem zellfreien Extrakt von Mentha longifolia Enzymatic D egradation of [Ring B-U-14C] -S ^S ^'-tetrahydroxyflavanone-T -O - glucoside to 5,7-Dihydroxychromone-7-0-glucoside and [Ring-U-14C]-1,2,4-trihy- droxybenzene with a Cell Free System from M entha longifolia  
  Reference    (Z. Naturforsch. 31c, 408 [1976]; eingegangen am 12. April 1976) 
  Published    1976 
  Keywords    Flavanone Degradation, [Ring B-U-14C]-5, 7, 3', 4'-tetrahydroyflavanon-7-0-glucoside, Chromone Formation 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0408.pdf 
 Identifier    ZNC-1976-31c-0408 
 Volume    31 
5Author    Klaus-MichaelW. Eltring, W. Olfgang BarzRequires cookie*
 Title    Degradation of 3,9-Dimethoxypterocarpan and Medicarpin by Fusarium proliferatum  
 Abstract    The degradation o f 3,9-dimethoxypterocarpan was investigated in selected strains of Fusarium. Fusarium proliferatum (/'. e. Gibberella fujikuroi (SAW)WR) degrades this substrate via 3-meth-oxy-9-hydroxypterocarpan, 3,9-dihydroxypterocarpan and 2',4',7-trihydroxyisoflavan. During degradation by this organism medicarpin is first demethylated to 3,9-dihydroxypterocarpan. 
  Reference    Z. Naturforsch. 35c, 399—405 (1980); received March 10 1980 
  Published    1980 
  Keywords    Phytoalexins, 3, 9-Dimethoxypterocarpan, Medicarpin, Fusarium, Degradation, Demethylation 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0399.pdf 
 Identifier    ZNC-1980-35c-0399 
 Volume    35 
6Author    Hamako Obata-Sasamoto, Atsushi Komamine, Koshi SaitoRequires cookie*
 Title    Biosynthesis of 3-Carboxy-6,7-dihydroxy-l, 2,3,4-tetra- hydroisoquinoline and l-Methyl-3-carboxy-6,7-dihydroxy-l, 2,3,4- tetrahydroisoquinoline in a Callus Culture of Stizolobium hassjoo  
 Abstract    dl-[/?-14C] 3,4-Dihydroxyphenylalanine (DOPA), [2-14C]pyruvate and [2-14C]acetate were ad­ ministered to a callus culture o f S. hassjoo and incorporation of the radioactivity into 3-carboxy-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (I) and l-methyl-3-carboxy-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (II) was examined. Incorporation of radioactivity from labelled DOPA into I and II, and from acetate into I were observed, while that from pyruvate into I and II and from acetate into II were hardly detected. The biosynthetic pathways o f I and D were discussed. 
  Reference    Z. Naturforsch. 36c, 921 (1981); received August 21 1981 
  Published    1981 
  Keywords    Stizolobium hassjoo, Biosynthesis, 3-Carboxy-6, 7-dihydroxy-1, 2, 3, 4-tetrahydroisoquinoline, 1 -Methyl-3-carboxy-6, 7-dihydroxy-1, 2, 3, 4-tetrahydroisoquinoline, Callus Culture 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0921.pdf 
 Identifier    ZNC-1981-36c-0921 
 Volume    36 
7Author    Koshi Saito, Atsushi Komamine, Siro SenohRequires cookie*
 Title    Further Studies on the Biosynthesis of Stizolobinic Acid and Stizolobic Acid in the Etiolated Seedlings of Stizolobium hassjoo  
 Abstract    Incorporation of doubly labelled tyrosine into stizolobinic acid and stizolobic acid by the etio­ lated seedlings of Stizolobium hassjoo was studied. The retention of tritium activity in stizolobinic acid was 55%, while that in stizolobic acid was only 4.4% in average. The results strongly suggest that the heterocyclic rings of these two amino acids may be derived from 3,4-dihydroxyphenyl-alanine (DOPA) by extradiol cleavage of the aromatic ring. 
  Reference    (Z. Naturforsch. 31c, 15 [1976]; received September 1 1975) 
  Published    1976 
  Keywords    Stizolobium hassjoo, Biosynthesis, Stizolobinic Acid, Stizolobic Acid, 3, 4-Dihydroxyphenylalanine 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0015.pdf 
 Identifier    ZNC-1976-31c-0015 
 Volume    31 
8Author    D. Ietrich, Bäum Er, HansG. Eorg RuppelRequires cookie*
 Title    Phenolic Constituents of Galactites tomentosa (Asteraceae)  
 Abstract    The A steracea Galactites tomentosa. known as a plant causing allergic contact reactions, was investigated for new constituents in leaves and stems. Chlorogenic acid and 3,5-dicaf-feoylquinic acid could be detected by H P LC in tissues and trichome preparations as well. 
  Reference    Z. Naturforsch. 51c, 623 (1996); received May 31/June 20 1996 
  Published    1996 
  Keywords    Allergie Contact Reactions, Galactites tomentosa, Chlorogenic Acid, 3, 5-Dicaffeoylquinic Acid 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0623.pdf 
 Identifier    ZNC-1996-51c-0623 
 Volume    51 
9Author    Ralf Hautzel, Heidrun AnkeRequires cookie*
 Title    Screening of Basidiomycetes and Ascomycetes for Plant Growth Regulating Substances. Introduction of the Gibberellic Acid Induced de-novo Synthesis of Hydrolytic Enzymes in Embryoless Seeds of Triticum aestivum as Test System  
 Abstract    A new test system for the detection of plant growth regulating activities was successfully employed. In a screening for inhibitors of the gibberellic acid controlled synthesis of hydrolytic enzymes in embryoless wheat seeds (T riticum aestivum) 160 cultures of ascomycetes and basi­ diomycetes were tested. In the extracts of two cultures inhibitory activities were detected. From fermentations of a Hypholoma-species (basidiomycetes) 3,5-dichloro-4-methoxybenzyl alcohol \ yas isolated as the active principle. Galiellalactone and two other new phytotoxins were isolated from cultures of the ascomy-cete G aliella rufa. At concentrations of 50 |ig/ml all four compounds inhibited the de-novo synthesis of a-amylases, proteases, and phosphatases. Further investigations on the mode of action revealed, that all four metabolites interfere with early steps of the biosynthetic path­ ways induced by gibberellic acids. In vivo, the germination of the seeds of several plants was inhibited by these compounds. 
  Reference    Z. Naturforsch. 45c, 1093—1098 (1990); received July 19 1990 
  Published    1990 
  Keywords    Galiella rufa, Hypholoma species, a-Amylase, Plant Growth Regulator, Galiellalactone, 3, 5-Dichloro-4-methoxybenzyl Alcohol 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-1093.pdf 
 Identifier    ZNC-1990-45c-1093 
 Volume    45 
10Author    Stefan Kremer, Olov Sterner, Heidrun AnkeRequires cookie*
 Title    Degradation of Pentachlorophenol by Mycena avenacea TA 8480 - Identification of Initial Dechlorinated Metabolites  
 Abstract    Cultures o f the basidiomycete M ycena avenacea TA 8480 were shown to m etabolize penta­ chlorophenol (PCP), 2,3,5,6-tetrachloro-/7-hydroquinone (TeCHQ), and 2,3,5,6-tetrachloro-/?-benzoquinone (TeCBQ). The first metabolite o f the PCP degradation pathway was identified as TeCBQ which in a second reaction is reduced to the hydroquinone TeCHQ. Subsequently dechlorination o f TeCHQ yielded 3,5,6-trichloro-2-hydroxy-/?-benzoquinone (TCOHBQ). The specific degradation rate for PCP was 1.4 mg x g dry m ycelia-1 x day-1. The initial de­ chlorination rate o f TeCHQ was 5.9 mg x g dry m ycelia"1 x h o u r '1. N one o f the com pounds supported growth o f the fungus. 
  Reference    Z. Naturforsch. 47c, 561 (1992); received April 1 1992 
  Published    1992 
  Keywords    Basidiomycete, M ycena avenacea, Pentachlorophenol, Dechlorination, 3, 5, 6-Trichloro-2-hydroxybenzoquinone 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0561.pdf 
 Identifier    ZNC-1992-47c-0561 
 Volume    47 
11Author    Hans Rausch, GeorgG. GrossRequires cookie*
 Title    Preparation of [14C]-LabeIled l,2,3,4,6-Penta-0-Gal!oyl-/?-D-Glucose and Related Gallotannins  
 Abstract    [U -14C]-Labelled 1,2,3,4,6-penta-O-galloyl-ß-D-glucose was prepared by photoassimilation of 14C 0 2 with leaves from staghorn sumac (Rhus typhina) in the presence of the herbicide glyphosate. Extracts of the plant material were partitioned against ethyl acetate and chro­ matographed on Sephadex LH-20, yielding a series o f crude tri-to decagalloylglucoses. The pentagalloylglucose fraction among these was further purified by HPLC to >99% purity and a specific radioactivity of 130 kBq (3.5 fiCi) per fimol. The ratio of the radioactivities in the glucose and galloyl moieties, respectively, suggested a uniform labelling pattern of the product. 
  Reference    Z. Naturforsch. 51c, 473 (1996); received February 8/March 8 1996 
  Published    1996 
  Keywords    [I4C]l, 2, 3, 4, 6-Penta-0-galloyl-ß-D-glucopyranose, Gallotannins, Photosynthesis, Rhus typhina, Staghorn Sumac 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0473.pdf 
 Identifier    ZNC-1996-51c-0473 
 Volume    51 
12Author    Martin Semara, HeidrunA. Nke3, Wolf-Rüdiger Arendholzb, Robert Veiten0, Wolfgang Steglich0Requires cookie*
 Title    Lachnellins A, B, C, D, and Naphthalene-l,3,8-triol, Biologically Active Compounds from a Lachnellula Species (Ascomycetes)  
 Abstract    In the course of our search for new biologically active metabolites, lachnellin A (1), a metabolite with high cytotoxic and antimicrobial activities, the structurally related lachnellins B. C and D (3, 4, 7), and naphthalene-l,3,8-triol (8), an inhibitor of malate synthase (EC, were isolated from submerged cultures o f the ascomycete Lachnellula sp. A 3 2 -8 9 . The antimicrobial, cytotoxic and phytotoxic activities of lachnellin A depended on its reactiv­ ity and could be abolished by the addition of cysteine. The enzyme inhibiting activity of (8) was due to reactive intermediates during melanization and was no longer observed in the presence of serum albumin. In addition, rac-scytalone (9), (+)-fra/7s-3,4-dihydro-3,4,8-trihy-droxy-l(2//)-naphtha!enone (10). 2,5-dihydroxytoluene (11), and (/?)-(-)-5-methylmellein (12) were obtained from the same source and biologically characterized. 
  Reference    Z. Naturforsch. 51c, 500 (1996); received March 1/April 29 1996 
  Published    1996 
  Keywords    Lachnellin A, B, C D Glyoxylate Cycle, N aphthalene-1, 3, 8-triol, Malate Synthase, Melanization, Lachnellula sp 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0500.pdf 
 Identifier    ZNC-1996-51c-0500 
 Volume    51