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'Caryophyllaceae' in keywords
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1996 (1)
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1980 (1)
1Author    Jan Van Brederode, RiaK. Am, Ps-H EinsbroekRequires cookie*
 Title    Structure and Biosynthesis o f Vitexin 2"-0-Xyloside in Silene alba  
 Abstract    In petals o f Silene alba plants o f Armenian populations, vitexin 2"-0-xyloside was demonstrated to be present. The enzyme, catalyzing the transfer of the xylose moiety of UDP-xylose to vitexin, has its optimal activity at pH 7.8. Mg2+ and Mn2+ stimulated the reaction. The K m values were 2 x 10-5 M for vitexin and 3 x 10-5 M for UDP-xylose. 
  Reference    Z. Naturforsch. 36c, 484 (1981); received February 20 1981 
  Published    1981 
  Keywords    Silene, Caryophyllaceae, Biosynthesis, Vitexin 2"-0-Xyloside, Xylosyltransferase 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0484_n.pdf 
 Identifier    ZNC-1981-36c-0484_n 
 Volume    36 
2Author    Jan Van Brederode, Ria Kamps-HeinsbroekRequires cookie*
 Title    Methylation of 3',4' Di-O H C-Glycosyl- flavones in Silene  
 Abstract    In green parts of Silene plants of the genotype g lR two methylated flavonoids were found: isoscoparin and isosco-parin 2"-0-rhamnoside. An enzyme has been demonstrated to catalyze the transfer of the methyl moiety of S-adenosyl methionine to iso-orientin and iso-orientin 2"-0-rhamnosi-de. Maximal activity takes place at pH 8.0 -8 .2 . Of the me­ tal ions Mn2+, Mg2+, Ca2+, Co2+, Zn2+ and Hg2+, only Co2+ stimulated the reaction at conc. > 2 m M . For the methyla­ tion o f isoorientin the K m values were 4 x 10-6 M for S-ade-nosyl methionine and 0.32 x 10~3 m for iso-orientin. When isoorientin 2"-0-rhamnoside was used as substrate the K m values were 5 x 10"6 m for S-adenosylmethionine and 7 x 10-6 M for iso-orientin 2"-0-rhamnoside. 
  Reference    Z. Naturforsch. 36c, 486 (1981); received February 20 1981 
  Published    1981 
  Keywords    Silene, Caryophyllaceae, Methylation, Biosynthesis, Iso-scoparin 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0486_n.pdf 
 Identifier    ZNC-1981-36c-0486_n 
 Volume    36 
3Author    Jürgen Schmidt, Frank Böhme, G. Ünter, AdamRequires cookie*
 Title    24-Epibrassinolide from Gypsophila perfoliata  
 Abstract    The scarce 24-epibrassinolide could be identified from seeds of G ypsophila perfoliata L. by GC/MS as the only brassinosteroid present. Furtherm ore, the A7-phyto-sterols ergost-7-en-3ß-ol, spinasterol and 22-dihydro-spinasterol were found as main sterols in the same plant material. 
  Reference    Z. Naturforsch. 51c, 897—899 (1996); received July 9/ 
  Published    1996 
  Keywords    Gypsophila perfoliata L, Caryophyllaceae, Seeds, Brassinosteroids, 24-Epibrassinolide 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0897_n.pdf 
 Identifier    ZNC-1996-51c-0897_n 
 Volume    51 
4Author    M. Hani, A. Elgamal, HeshamS M Soliman, Helmut Duddeck, Bozhana Mikhova, M. Artin, Gartm AnnRequires cookie*
 Title    A Novel Triterpene Saponin from Gypsophila capillaris  
 Abstract    A novel C-28 tetraglycoside o f quillaic acid (1) has been isolated from G ypsophila capil­ laris. The structure was elucidated by 1 D N M R (N O E difference, DEPT, selective 13C{1H} INEPT), 2 D NM R ^ H / H and !H ,13C COSY, 'H / H / H RELAY, ROESY and TOCSY) and other spectroscopic and chromatographic evidences. Conformational dynamics within the tetrasaccharide part were estimated from N O E responses and ROESY peaks. 
  Reference    Z. Naturforsch. 50b, 563 (1995); received October 28 1994 
  Published    1995 
  Keywords    G ypsophila capillaris, Caryophyllaceae, Quillaic Acid, G lucose, Galactose 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0563.pdf 
 Identifier    ZNB-1995-50b-0563 
 Volume    50 
5Author    John Kamsteega, Jan Van Brederode, Gerrit Van NigtevechtRequires cookie*
 Title    Campion (Silene dioica)  
 Abstract    An enzyme catalyzing the transfer of the rhamnosyl moiety of UDP-L-rhamnose to the 6 -hydro-xyl group of the 3-O-bound glucose of anthocyanidin 3-O-glucosides has been demonstrated in petal extracts of Silene dioica plants. The enzyme activity is controlled by a single dominant gene N\ no rhamnosyltransferase activity is found in petals of n/n plants. The 60-fold purified rhamno-syltransferase exhibits a pH optimum of 8.1, has a molecular weight of about 45000 daltons, is sti­ mulated by the divalent metal ions Mg2+, Mn2+ and Co2+, and has a "true Km" value of 0.09 mM for UDP-L-rhamnose and 2.2 mM for cyanidin 3-O-glucoside. Pelargonidin 3-O-glucoside and delphinidin 3-O-glucoside can also serve as acceptor. The enzyme can also catalyze the rhamnosy-lation of anthocyanidin 3,5-diglucosides although at reduced rate. The biosynthetic pathway for the synthesis of cyanidin 3-rhamnosylglucoside-5-glucoside in petals of S. dioica is discussed. 
  Reference    Z. Naturforsch. 35c, 249—257 (1980); received October 22 1979 
  Published    1980 
  Keywords    Silene dioica, Caryophyllaceae, Anthocyanin Biosynthesis, Cyanidin-, Pelargonidin-glycosides, Glycosyltransferases, Genetic Control 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0249.pdf 
 Identifier    ZNC-1980-35c-0249 
 Volume    35