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'Apocynaceae' in keywords Facet   section ZfN Section C  [X]
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1986 (2)
1982 (1)
1Author    Karl-Heinz Pawelka, Joachim StöckigtRequires cookie*
 Title    Indole Alkaloids from Ochrosia elliptica Plant Cell Suspension Cultures  
 Abstract    From cell suspension cultures of Ochrosia elliptica Labill. eight different monoterpenoid indole alkaloids were isolated and comprised three alkaloid classes viz. Corynanthe/Heteroyohimbine (tetrahydroalstonine, cathenamine, pleiocarpamine and two methoxylated heteroyohimbines), Strychnos (norfluorocurarine), Apparicine (apparicine and epchrosine). A ll these compounds except the Strychnos alkaloid are biogenetically closely related to the known alkaloids occurring in Ochrosia plants, although such alkaloids have not previously been detected in O. elliptica. Epchrosine has not before been described as a natural product. 
  Reference    Z. Naturforsch. 41c, 381 (1986); received November 7 1985 
  Published    1986 
  Keywords    Ochrosia elliptica Labill, Apocynaceae, Cell Suspension Cultures, Indole Alkaloid Composition 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0381.pdf 
 Identifier    ZNC-1986-41c-0381 
 Volume    41 
2Author    Karl-Heinz Pawelka, Joachim StöckigtRequires cookie*
 Title    Major Indole Alkaloids Produced in Cell Suspension Cultures of Rhazya strict a Decaisne  
 Abstract    Eleven main alkaloids were identified from cell suspension cultures of Rhazya stricta grown in 4X-medium for 15 days. The alkaloids comprised the five groups Corynanthe, Strychnos, Ebur-nan, Secodine, and Aspidosperma and can be regarded as being typical Rhazya alkaloids, al­ though the Strychnos alkaloid akuammicine has been isolated for the first time from the genus Rhazya. The most abundant compound was (+)-l,2-dehydroaspidospermidine (15 mg/1 medium) whereas all other constituents were synthesized in about 5 — 10 times lower amounts. More than 15 further alkaloids were formed as minor components which have not yet been identified. Culti­ vated Rhazya cells have been shown to be one of the richest alkaloid sources from apocynaceous cell suspensions. The isolated compounds, because of their structural heterogeneity, cannot be presently arranged into a scheme with coherent biosynthetic sequences. 
  Reference    Z. Naturforsch. 41c, 385 (1986); received December 17 1985 
  Published    1986 
  Keywords    Rhazya stricta Decaisne, Apocynaceae, Cell Suspension Cultures, Monoterpenoid Indole Alkaloids 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0385.pdf 
 Identifier    ZNC-1986-41c-0385 
 Volume    41 
3Author    Joachim Stöckigt, Karl-Heinz Pawelka, A. Na, R. Other, Brigitte DeusRequires cookie*
 Title    Indole Alkaloids from Cell Suspension Cultures of Stemmadenia tomentosa and Voacanga africana  
 Abstract    Cell suspension cultures o f Stemmadenia tomentosa synthesized under normal growth condition the eight major indole alkaloids: (-)-tabersonine, (—)-minovincinine, (+)-conoflorine (voaphyl-line), condylocarpine, (+)-tubotaiwine (dihydrocondylocarpine), (-)-norfluorocurarine (vin-canine), (-)-vinervine, and (—)-coronaridine. These alkaloids consist o f the three different types, Aspidosperma, Strychnos and Iboga. In contrast, cultures o f Voacanga africana produced mainly one alkaloid group (Aspidosperma-type) represented by (—)-tabersonine, lochnericine and (—)-minovincinine. Therefore this cell culture seems to be qualified for investigation concerning the biosynthesis o f Aspidosperma alkaloids. 
  Reference    Z. Naturforsch. 37c, 857—8 (1982); received June 3 1982 
  Published    1982 
  Keywords    Stemmadenia tomentosa var palmeri, Voacanga africana, Apocynaceae, Cell Suspension Cultures, Indole Alkaloids 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0857.pdf 
 Identifier    ZNC-1982-37c-0857 
 Volume    37