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1983 (1)
1982 (1)
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1Author    Jochen Berlin, Wolfgang BarzRequires cookie*
 Title    Oxidative Decarboxylation of /?^m-Hydroxybenzoic Acids by Peroxidases under in vivo and in vitro Conditions  
 Abstract    Oxidative decarboxylation of p-hydroxybenzoic acids in plant cell suspension cultures is catalyzed by peroxidases. This reaction has been characterized in vivo and in vitro. Decarboxylation of sub­ stituted benzoic acids yields monomeric, dimeric and oligomeric benzoquinones. All peroxidases ob­ tained from soybean (Glycine max) cell suspension cultures by gel electrophoresis are equally capable to decarboxylate p-hydroxybenzoic acids as indicated by their rather low differences in specific activity for various benzoic acids. 
  Reference    (Z. Naturforsch. 30c, 650—658 [1975]; received May 2911975) 
  Published    1975 
  Keywords    Decarboxylation, p-Hydroxybenzoic Acids, Peroxidases, Plant Cell Suspension Cultures 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0650.pdf 
 Identifier    ZNC-1975-30c-0650 
 Volume    30 
2Author    Wolfgang Barz, Rita Schlepphorst, Peter Wilhelm, Westfalen, Karl Kratzl, Erich TenglerRequires cookie*
 Title    Metabolism of Benzoic Acids and Phenols in Cell Suspension Cultures of Soybean and Mung Bean  
 Abstract    Uptake of benzoic and salicylic acid by soybean cell suspension cultures is diffusion-mediated and exclusively leads to glucose-esters. — Veratric acid is para-demethylated to vanillic acid which is conjugated to a monoglucoside. — Nitrobenzoic acids are scarcely taken up by cell cultures with glucose-esters as sole products. — Ring-labelled derivatives of vanillylalcohol and creosol are mainly polymerized to insoluble structures, ring cleavage reactions could not be observed. 
  Reference    Z. Naturforsch. 33c, 363 (1978); received April 12 1978 
  Published    1978 
  Keywords    Benzoic Acids, Phenols, Ring Fission, Peroxidases, Polymerisation, Plant Cell Suspension Cultures 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0363.pdf 
 Identifier    ZNC-1978-33c-0363 
 Volume    33 
3Author    Johannes Kösler, Monika Ohm, Wolfgang BarzRequires cookie*
 Title    Metabolism of Anthranilic Acid in Plant Cell Suspension Cultures  
 Abstract    Cell suspension cultures of some 12 plants were investigated for anthranilic acid metabolism. Rapid uptake of substrate is accompanied by partial excretion of anthranilic acid-N-glucoside and followed by predominant conversion into tryptophan. Ring cleavage reactions of anthranilate could not be observed but peroxidatic polymerisation occurred to a high percentage. Anthranilic acid-N-glucoside is not permanently stored by the cell cultures. 
  Reference    Z. Naturforsch. 33c, 368 (1978); received April 19 1978 
  Published    1978 
  Keywords    Anthranilic Acid, Plant Cell Suspension Cultures, Tryptophan, Glucoside, Degradation, Peroxidases 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0368.pdf 
 Identifier    ZNC-1978-33c-0368 
 Volume    33 
4Author    Hans HarmsRequires cookie*
 Title    Uptake and Conversion of Three Different 5-Ring Polycyclic Aromatic Hydrocarbons (PAH s) in Cell Suspension Cultures of Various Chenopodiaceae-Species  
 Abstract    Three 14C-labelled 5-ring PAHs, benzo(a)pyrene, dibenz(a,h)anthracene and perylene were added to various cell suspension cultures o f plants belonging to the Chenopodiaceae family. The differently configurated 5-ring systems varied in uptake and metabolism. The uptake of benzo(a)pyrene was highest in all cell cultures tested whereas the assimilation of dibenz(a,h)an-thracene and perylene was significantly less. The uptake o f benzo(a)pyrene and dibenz(a,h)-anthracene was highest in those cultures which showed the highest increase in biomass. In contrast the uptake of perylene was highest in cultures whose increase in biomass was less. Previous investigations (H. Harms, W. Dehnen and W. Mönch, Z. Naturforsch. 32 c, 3 2 1 -3 2 6 (1977)) showed that benzo(a)pyrene is metabolized to quinones and other oxygenated derivatives by Chenopodium rubrum cell cultures. It was demonstrated now that in further reactions these compounds are incorporated into insoluble fractions. With increasing time o f incubation the amount of radioactivity in the extracted residue increased. The proportion o f oxygenated derivatives formed seems to be correlated with the incorporation of radioactivity into insoluble fractions. Dibenz(a,h)anthracene turned out to be the most stable 5-ring system whereas perylene is metabolized to a certain extent but only small amounts o f radioactivity could be detected in the extracted insoluble residue. The experiments showed that plant cell cultures maintain their specific behaviour over long periods. On the other hand each o f the chemical compounds, because of its molecular size and configuration, is subject to its own specific metabolism in plant systems. 
  Reference    Z. Naturforsch. 38c, 382—382 (1983); received December 30 1982/March 2 1983 
  Published    1983 
  Keywords    5-Ring Polycyclic Aromatic Hydrocarbons, Uptake, Metabolism, Plant Cell Suspension Cultures, Chenopodiaceae 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0382.pdf 
 Identifier    ZNC-1983-38c-0382 
 Volume    38 
5Author    R. Schmitt, H. SandermRequires cookie*
 Title    Specific Localization of /J-D-Glucoside Conjugates of 2,4-Dichlorophenoxyacetic Acid in Soybean Vacuoles  
  Reference    Z. Naturforsch. 37c, 772—777 (1982); received May 17 1982 
  Published    1982 
  Keywords    2, 4-Dichlorophenoxyacetic Acid, Glycine m ax L, Plant Cell Suspension Culture, Vacuole, /?-ü-Glucosides 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0772.pdf 
 Identifier    ZNC-1982-37c-0772 
 Volume    37