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1Author    Christian Zidorn3, N. Igel, B. PerrybRequires cookie*
 Title    Chemistry of New Zealand Apiaceae: A Rare Phenylpropanoid and Three New Germacrane Derivatives from Anisotome lyallii  
 Abstract    A phytochemical investigation of the New Zealand endemic A piaceae species Anisotom e lyallii Hook.f. yielded (+)-a-angeloyloxylatifolone (1), 6-0-angeloyl-8-0-tigloyl-6/3,8a,ll-tri-hydroxygerm acra-l(10)£,4£-diene (2), 6-0-tigloyl-8-0-tigloyl-6/3,8a,ll-trihydroxygermacra-l(10)£,4j£'-diene (3) and 6-0-tigloyl-8-0-tigloyl-la,6y3,8a,ll-tetrahydroxygermacra-4£,10-(14)diene (4). The structures were elucidated by H R mass spectrometry and ID -and 2D-NM R spectroscopy. A chemosystematic survey for compounds 1 -3 in other New Zealand Apiaceae by HPLC-MS revealed that 1 -3 were confined to A. haastii Cockayne & Laing and A. lyallii, and that some minor compounds in other species of Anisotom e were isomers of 2 and 3. 
  Reference    Z. Naturforsch. 56c, 951—956 (2001); received June 6 /July 27 2001 
  Published    2001 
  Keywords    Apiaceae, Germacranes, Phenylpropanoids 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-0951.pdf 
 Identifier    ZNC-2001-56c-0951 
 Volume    56 
2Author    Dieter StrackRequires cookie*
 Title    Sinapine as a Supply of Choline for the Biosynthesis of Phosphatidylcholine in Raphanus sativus Seedlings  
 Abstract    Biosynthesis o f phosphatidylcholine in young seedlings o f Raphanus sativus is supplied with choline from degradation of the seed constituent sinapine (sinapoylcholine). This conclusion has been deduced from the following results: (1) Raphanus sativus seedlings accumulate approx. 70 nmol phosphatidylcholine which may be relevant for the consumption of choline, liberated during hydrolysis of approx. 130 nmol sinapine. (2) [14C]choline and [14C]ethanolamine, taken up by germinating Raphanus seeds, are exclu­ sively consumed in the biosynthesis o f phosphatidylcholine and phosphatidylethanolamine, respectively. (3) Pulse-chase experiments with seedlings at different germination stages show a reduced [14C]choline incorporation into phosphatidylcholine at the time when degradation o f sinapine occurs, obviously as a result of an isotope dilution by an increase o f the endogenous choline pool. (4) After [14C]choline pulse to immature seeds, during the process o f seed maturation most of the activity taken up is incorporated into accumulating sinapine and approx. 50% compared to this into phosphatidylcholine. During seedling development the quantity o f labelled sinapine rapidly decreases as a result of sinapine degradation with a concomitant label increase in free choline, phosphorylcholine, and phosphatidylcholine. Approx. 50% of the choline liberated from sinapine, is consumed in the biosynthesis of phosphatidylcholine. High performance liquid chromatographic analyses of phosphatidylcholine during Raphanus germination revealed that this phospholipid might be a metabolically active compound. Changes in the absorptivity of this compound at 210 nm indicate changes in the degree of unsaturation in the fatty acyl groups. 
  Reference    Z. Naturforsch. 36c, 215—221 (1981); received December 231980 
  Published    1981 
  Keywords    Sinapine, Phosphatidylcholine, Phenylpropanoids, Phospholipids, Raphanus, Brassicaceae 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0215.pdf 
 Identifier    ZNC-1981-36c-0215 
 Volume    36 
3Author    Otto Vostrowsky, Karl Michaelis, Helmut Ihm, Robert Zintl, Karl KnoblochRequires cookie*
 Title    Über die Zusammensetzung des ätherischen Öls aus Artemisia dracunculus L. während der Vegetationsperiode On the Composition of the Essential Oil from Artem isia dracunculus L. during the Vegetation Period  
 Abstract    The main components of the essential oil from Artemisia dracunculus L., as there are sabinene, methyl eugenol, estragol and elemicine, are present in variable quantities depending on the season. The biosynthesis o f the phenolic compounds in tarragon is in accordance with the shikimate pathway. Elemicine is likely to be a metabolic product o f shikimic acid with no further mono-or bisphenolic intermediates involved. 
  Reference    Z. Naturforsch. 36c, 724—727 (1981); eingegangen am 10. Juni 1981 
  Published    1981 
  Keywords    Essential Oil, Artemisia dracunculus L, Terpenes, Phenylpropanoids 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0724.pdf 
 Identifier    ZNC-1981-36c-0724 
 Volume    36 
4Author    Jürgen Reichling, RainerM. ArtinRequires cookie*
 Title    Further Studies on the Biosynthesis of Pseudoisoeugenols in Tissue Cultures of Pimpinella anisum  
 Abstract    Tissue cultures o f Pimpinella anisum and P. major were used to study the biosynthesis o f pseudoisoeugenols. The putative precursors were labelled with 13C with one exception that was labelled with i4C. The incorporation o f the label was controlled by 13C N M R and liquid scintil­ lation, respectively. The biosynthetic sequence found was L-phenylalanine, /-cinnamic acid, /?-coumaric acid, / 7-hydroxycoum aric alcohol, /»-methoxycoumaric alcohol and anethol. The incorporation rates ranged from 0.5% to 25%. 
  Reference    Z. Naturforsch. 45c, 942 (1990); received April 26/July 2 1990 
  Published    1990 
  Keywords    Pseudoisoeugenols, Phenylpropanoids, Biosynthesis, 13C -Labelling Pimpinella Species 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-0942.pdf 
 Identifier    ZNC-1990-45c-0942 
 Volume    45 
5Author    M. Ichael Linscheid, Zentralbereich Forschung, Entwicklung Der, Bayer Ag, D. Leverkusen, Ieter StrackRequires cookie*
 Title    The Structures of Sinapic Acid Esters and Their Metabolism in Cotyledons of Raphanus sativus  
 Abstract    Five sinapic acid esters were isolated from cotyledons of Raphanus sativus and have been iden­ tified with the aid of electron impact (El)-, field desorption (FD)-mass spectrometry and NMR spectroscopy: 6,3'-disinapoylsucrose, sinapoylcholine (sinapine), 6 -sinapoylglucoraphenine, 1 -si­ napoylglucose, and sinapoylmalate. Three of these derivatives are metabolically related in the se­ quence sinapoylcholine -» • 1 -sinapoylglucose — ► sinapoylmalate. 
  Reference    Z. Naturforsch. 35c, 907—914 (1980); received August 5 1980 
  Published    1980 
  Keywords    Raphanus sativus, Brassicaceae, Sinapic Acid Esters, Phenylpropanoids, High Performance Liquid Chromatography 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0907.pdf 
 Identifier    ZNC-1980-35c-0907 
 Volume    35 
6Author    Jürgen Reichling, Rainer Martin, Ulla ThronRequires cookie*
 Title    Production and Accumulation of Phenylpropanoids in Tissue and Organ Cultures of Pimpinella anisum  
 Abstract    A leaf-differentiating callus culture and a root organ culture of Pimpinella anisum have been established in liquid nutrition medium. Their behaviour in accumulation of phenylpropanoids was shown to be different from that of the entire plant. This makes them, together with their special growth behaviour, suitable for labelling experiments with the biosynthesis of pseudoisoeugenols. 
  Reference    Z. Naturforsch. 43c, 42—46 (1988); received July 28/September 22 1987 
  Published    1988 
  Keywords    Pimpinella anisum, Umbelliferae, Tissue and Organ Cultures, Phenylpropanoids, Pseudoiso-eugenols 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0042.pdf 
 Identifier    ZNC-1988-43c-0042 
 Volume    43