Browsing by Subject "T. durum"

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    • Changes in hydroxamic acid levels of wheat plants induced by aphid feeding 
      Niemeyer, Hermann M.; Pesel, Erika; Copaja, Sylvia V.; Bravo, Héctor R.; Franke, Stephan; Francke, Wittko (1989)
      Seedlings of four wheat cultivars were infested with Metopolophium dirhodum nymphs. After aphids had fed for 40 hr on the plants, the levels of the defense metabolite 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one had changed. ...
    • Role of hydroxamic acids in the resistance of cereals to aphids 
      Argandoña, Victor H.; Luza, Juvenal G.; Niemeyer, Hermann M.; Corcuera, Luis J. (1980)
      Hydroxamic acid concentration in Gramineae, both natural and incorporated, correlates with resistance to the aphid Metopolophium dirhodum. 2,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one, a hydroxamic acid isolated ...