Go toArchive
Browse byFacets
Bookbag ( 0 )
'Petroselinum hortense' in keywords Facet   Publication Year 1988  [X]
Results  2 Items
Sorted by   
Section
Publication Year
1988[X]
1Author    Dieter Komoßa, Wolfgang BarzRequires cookie*
 Title    Glutaric Acid as a Catabolite of Nicotinic Acid in Parsley Cell Suspension Cultures  
 Abstract    A degradation product of nicotinic acid representing the pyridine carbon skeleton was isolated and purified from parsley cell suspension cultures after incubation with [6-14 C]nicotinic acid for 70 h. The catabolite was identified as glutaric acid by means of spectroscopic (GC-MS and 'H NMR) and chromatographic (TLC, HPLC) techniques. Glutaric acid when applied to parsley cell cultures was readily degraded to C0 2 but intermediate products could not be identified. 
  Reference    Z. Naturforsch. 43c, 843—849 (1988); received August 22 1988 
  Published    1988 
  Keywords    Nicotinic Acid, Degradation, Glutaric Acid, Petroselinum hortense, Cell Suspension Culture 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0843.pdf 
 Identifier    ZNC-1988-43c-0843 
 Volume    43 
2Author    Barbara Upmeier, JürgenE. Thomzik, Wolfgang BarzRequires cookie*
 Title    Enzymatic Studies on the Reversible Synthesis of Nicotinic Acid-N-glucoside in Heterotrophic Parsley Cell Suspension Cultures  
 Abstract    A soluble enzyme catalyzing the transfer of the glucose moiety from UDP-glucose to the nitrogen atom of nicotinic acid was detected in protein preparations from heterotrophic cell suspension cultures of parsley (Petroselinum hortense Hoffm.). Enzyme activity was enriched 22-fold by ammonium sulfate precipitation, gel filtration and ion exchange chromatography. The UDP-glucose : nicotinic acid-N-glucosyltransferase showed a pH-optimum at pH 7.8—8.2 and a temperature optimum at 30 °C. The apparent K M values were determined to be 170 ^M for nicotinic acid and 1.2 mM for the cosubstrate. The native enzyme had a molecular mass of about 46 kDa. The glucosyltransferase reaction was shown to be reversible. The transfer of the glucose molecule from nicotinic acid-N-glucoside to uridinediphosphate yielding uridinediphosphoglucose and nicotinic acid could be demonstrated indicating that nicotinic acid-N-glucoside has a high group-transfer potential. 
  Reference    Z. Naturforsch. 43c, 835—842 (1988); received August 1/September 30 1988 
  Published    1988 
  Keywords    Petroselinum hortense, Umbelliferae, Plant Cell Cultures, Nicotinic Acid, Nicotinic Acid-N-glucoside 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0835.pdf 
 Identifier    ZNC-1988-43c-0835 
 Volume    43