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1984 (1)
1Author    G. Ina, E. Sanders, A. Ndrew, H. C. Obb, K. Enneth, E. P. AllettRequires cookie*
 Title    Physiological Changes in Matricaria inodora Following Ioxynil and Bromoxynil Treatment  
 Abstract    A range o f biochemical and physiological changes were m onitored in Matricaria inodora following field rate applications o f ioxynil and brom oxynil. Bromoxynil showed greater phy­ totoxicity with decreased reducing sugars, am ino acids and proteins occurring within 28 days o f treatment, when plant death was apparent. After an initial decline these parameters increased as plants appear to recover from ioxynil treatment. C 0 2 fixation was com pletely inhibited within 4 days in leaves treated with ioxynil and brom oxynil. Ultrastructural effects o f both herbicides were similar with chloroplast swelling, decrease in starch grains and thylakoid disruption prior to cellular destruction. In vitro activity o f the herbicides on isolated chloroplasts revealed ioxynil to be slightly more inhibitory than brom oxynil toward electron transport and approxim ately one hundred times more effective as an uncoupler o f PMS cyclic photophosphorylation. 
  Reference    Z. Naturforsch. 39c, 505 (1984); received Decem ber 8 1983 
  Published    1984 
  Keywords    Matricaria inodora, Photosynthesis, Ioxynil, Brom oxynil, H erbicide Sym ptom s 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0505.pdf 
 Identifier    ZNC-1984-39c-0505 
 Volume    39