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1990 (1)
1981 (1)
1Author    Birgit Posner, G. Uido, Benno Feige, Siegfried HuneckRequires cookie*
 Title    Phytochemische Untersuchungen an westeuropäischen Lasallia-Arten Phytochemical Investigations on Western European Lasallia Species  
 Abstract    The secondary product pattern o f 38 specimens o f Lasallia brigantium (Zsch.) Llano, L. hi-spaniea (Frey) Sancho & Crespo and L. pustulata (L.) Merat were investigated by HPLC. A c­ cording to previous publications gyrophoric acid, lecanoric acid and umbilicaric acid were de­ tected. Additionally two further unknown depsides were found. The presence o f the anthra-quinone skyrin, new to Lasallia, was shown for L. hispanica and L. pustulata. Skyrin is not equally distributed within the thalli but mainly concentrated in the umbilicus. In L. hispanica skyrin is located in the epihymenium, too. A correlation between secondary product pattern and thallus size or light supply does not exist. 
  Reference    Z. Naturforsch. 45c, 161 (1990); received November 12/23 1989 
  Published    1990 
  Keywords    Lasallia, Lichen Substances, Anthraquinones, Skyrin 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-0161.pdf 
 Identifier    ZNC-1990-45c-0161 
 Volume    45 
2Author    PsoromaB. Renner, A. Henssen, E. GerstnerRequires cookie*
 Title    Pannarsäure und Porphyrilsäuremethylester — Sekundärstoffe der Flechtengattung Psoroma Pannaric Acid and Prophyrilic Acid Methyl Ester Lichen Substances in the Genus  
 Abstract    The novel liehen substance porphyrilic acid methyl ester and pannaric acid are reported the first time in the lichen genus Psoroma. They are constituents in the two varieties of the new species Psoroma tenue as well as in members of the Psoroma hypnorum/paleaceum aggr. and in a hitherto underscribed species from the southern hemisphere. Both dibenzofuranes are characterized by mass spectrometry and UV/VIS spectroscopy. A third compound of unknown structure (Ut) has been found additionally in the two varieties of P. tenue and in some specimens of the P. hypnorum/paleaceum group. 
  Reference    Z. Naturforsch. 36c, 893—895 (1981); eingegangen am 18. Mai 1981 
  Published    1981 
  Keywords    Lichen Substances, Porphyrilic Acid Methyl Ester, Pannaric Acid, Psoroma 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0893_n.pdf 
 Identifier    ZNC-1981-36c-0893_n 
 Volume    36