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'Lipophilic Flavones' in keywords Facet   section ZfN Section C  [X]
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1996 (1)
1Author    Pedro Cuadra2, JeffreyB H ArbornebRequires cookie*
 Title    Changes in Epicuticular Flavonoids and Photosynthetic Pigments as a Plant Response to UV-B Radiation  
 Abstract    Treatment of Gnaphalium vira-vira plants with UV-B radiation caused changes in plant growth and in plant chemistry. The leaf surface contained two O-methylated flavones, araneol and 7-O-methylaraneol. HPLC analysis showed that 20 days of UV-B radiation increased the synthesis of 7-O-methylaraneol at the expense of araneol. Spectrophotometric analysis of the photosynthetic pigments showed that UV-B radiation also increases the pigment content in treated plants. A nother U V alteration is epidermal hair damage, as observed in SEM pictures of treated leaves. This combination o f physiological and phytochemical effects may be interpreted as a plant response to UV-B stress. 
  Reference    Z. Naturforsch. 51c, 671 (1996); received April 29/June 10 1996 
  Published    1996 
  Keywords    Gnaphalium vira-vira, Compositae, Epicuticular Flavonoids, Lipophilic Flavones, U V-B Radiation 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0671.pdf 
 Identifier    ZNC-1996-51c-0671 
 Volume    51