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'Terpenoids' in keywords Facet   Publication Year 1980  [X]
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1980[X]
1Author    K.H G Rum Bach, B. FomRequires cookie*
 Title    Chloroplast Autonomy in Acetyl-Coenzyme-A-Formation and Terpenoid Biosynthesis  
 Abstract    Isolated intact spinach chloroplasts were supplied with 14C-labeled C 0 2, phosphoglycerate, phos-phoenolpyruvate, acetate and mevalonate and the incorporation o f radioactivity into /?-carotene and plastoquinone-9 assayed. All applied substrates were capable of crossing the chloroplast envelope. Except phosphoenolpyruvate all radioactive precursors were incorporated into ß-carotene and also into plastoquinone-9. It is concluded that spinach chloroplasts are autonom in acetyl-coenzyme-A-formation and terpenoid biosynthesis. There is a direct carbon flow from intermediates of the Calvin-cycle via acetyl-coenzyme-A and mevalonic acid existing in the chlo­ roplast leading to the carotenoids and isoprenoid side-chains o f chlorophylls and quinones. 
  Reference    Z. Naturforsch. 35c, 645—648 (1980); received March 25 1980 
  Published    1980 
  Keywords    Biosynthesis, /?-Carotene, Chloroplast, Plastoquinone-9, Terpenoids 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0645.pdf 
 Identifier    ZNC-1980-35c-0645 
 Volume    35 
2Author    Dieter Strack, Peter Proksch, Paul-G Erhard GülzRequires cookie*
 Title    Reversed Phase High Performance Liquid Chromatography of Essential Oils  
 Abstract    A reversed phase high performance liquid chromatographic procedure for the separation of essential oils is described. Applying water-acetonitrile elution systems on octyl and octadecyl-silane-bonded silica, complex mixtures o f sequiterpenes and oxygenated volatile constituents can be resolved, comparably to the quality o f gas chromatographic analysis. Photometrical detection at different wavelengths can be an important parameter in optimizing the separation of essential oil constituents. The application o f the described method is demonstrated with naturally occurring mixtures of terpenes from leaves of Cistus ladanifer. 
  Reference    Z. Naturforsch. 35c, 675—681 (1980); received June 20 1980 
  Published    1980 
  Keywords    High Performance Liquid Chromatography (HPLC), Essential Oils, Terpenes, Terpenoids, Cistus, Cistaceae 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0675.pdf 
 Identifier    ZNC-1980-35c-0675 
 Volume    35