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'Chromoplast Ultrastructures' in keywords Facet   Publication Year 1988  [X]
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1Author    A. Hloušek-Radojčič, N. LjubešičRequires cookie*
 Title    The Development of Daffodil Chromoplasts in the Presence of Herbicides SAN 9789 and SAN 9785  
 Abstract    The effects of two pyridazinone herbicides (SAN 9789 and SAN 9785) were studied on the fine structure and carotenoid composition during the transformation of chloroplasts into chromoplasts in daffodil (Narcissus poëticus L.) flowers. SAN 9789 caused the absence of big characteristic carotene crystals and the appearance of numerous nonosmiophilic plastoglobuli in chromoplasts. The accumulation of all carotenoids was drastically reduced and the content of carotenes was 40-fold lower than in the control. SAN 9785 caused no gross abnormalities in ultrastructure of chromoplasts. The synthesis of carotenes was partially reduced to about 75%. In spite of this the accumulation of xanthophylls is two times higher than in the control. The interaction between chromoplast ultrastructure and carotenoid composition is discussed. 
  Reference    Z. Naturforsch. 43c, 418—422 (1988); received December 7 1987/January 26 1988 
  Published    1988 
  Keywords    Pyridazinone Herbicides, Chromoplast Ultrastructures, Carotenoids 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0418.pdf 
 Identifier    ZNC-1988-43c-0418 
 Volume    43