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'Cell Culture' in keywords Facet   Publication Year 1982  [X]
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1982[X]
1Author    Werner Kohl, Barbara Witte, Gerhard HöfleRequires cookie*
 Title    Alkaloide aus Catharanthus roseus-Zellkulturen, III [1] Alkaloids from Catharanthus roseus Tissue Cultures, III [1]  
 Abstract    From the methanol extract of Catharanthus roseus tissue cultures sitsirikine (2), isositsirikine (3), dihydrositsirikine (4), yohimbine (5), 3-iso-19-epiajmalicine (6), pleio-carpamine (7), antirhin (8) and two up to now unknown alkaloids have been isolated in addition to the compounds previously found in the hexane extract. The structures belonging to lieteroyohimbane, vallesiachotamine, corynanthe and related types were deduced by UV, NMR and mass spectroscopy. 
  Reference    Z. Naturforsch. 37b, 1346—1351 (1982); eingegangen am 17. Mai 1982 
  Published    1982 
  Keywords    Indole Alkaloids, Catharanthus roseus, Cell Cultures 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1346.pdf 
 Identifier    ZNB-1982-37b-1346 
 Volume    37 
2Author    Bruno Wolters, U. Do EilertRequires cookie*
 Title    Acridonepoxidgehalte in Kalluskulturen von Ruta graveolens und ihre Steigerung durch Mischkultur mit Pilzen.* Accumulation of Acridone-Epoxides in Callus C ultures o f Ruta graveolens Increased by Coculture with Not Host-Specific Fungi  
 Abstract    The classic attempt to find optimum culture conditions lead to hormonautotrophic cultures and to dark grown cultures. We made the new attempt to rise the yield o f rutacridone-epoxides by co­ culture with not hostspecific fungi. Conditions were chosen that only diffusible elicitors could in­ fluence callus tissue. 14 days of coculture mostly caused reduced acridone-epoxide content, growthrate and up to total disappearance of chlorophyll. Within 3 — 7 days o f coculture some fun­ gi induced a significant rise of acridone-epoxide content (up to 50-fold). Culture filtrates o f these fungi showed comparable effects. Our results proved the acridone-epoxides to be phytoalexins. The use o f fungal elicitors could be a new method to increase secondary product accumulation in tissue culture. 
  Reference    Z. Naturforsch. 37c, 575 (1982); received March 22 1982 
  Published    1982 
  Keywords    Acridone-Epoxide, Cell Culture, Coculture with Fungi, Phytoalexin, Ruta graveolens 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0575.pdf 
 Identifier    ZNC-1982-37c-0575 
 Volume    37