Accumulation of Phenolic Compounds and Phytoalexins in Sliced and Elicitor-Treated Cotyledons of Cicer arietinum L
نویسندگان
چکیده
Cicer arietinum, Ascochyta rabiei, Elicitor. Isoflavones, Phytoalexins Upon slicing cotyledons of chickpea, Cicer arietinum L ., accumulate the pterocarpan phyto alexins medicarpin and maackiain. Treatment of this tissue with an elicitor from the phytopathogenic deuteromycete Ascochyta rabiei (Pass.) Lab. greatly enhances accumulation of the pterocarpans and of other isoflavones and flavonoids. Isolation, chromatographic purification and structural elucidation by spectroscopic techniques of 16 phenolic compounds is described. Cotyle dons induced for phytoalexin biosynthesis readily accumulate the isoflavones daidzein, for m ononetin. calycosin and pseudobaptigenin which are thought to be intermediates in pterocarpan formation.
منابع مشابه
Elicitation of Pterocarpan Phytoalexins in Cell Suspension Cultures of Different Chickpea (Cicer arietinum L.) Cultivars by an Elicitor from the Fungus Ascochyta rabiéi
Cell suspension cultures of two chickpea (Cicer arietinum L.) cultivars, resistant and susceptible towards the chickpea pathogen Ascochyta rabiei, were compared with regard to elicitor-induced changes in phytoalexin and isoflavone accumulation. The elicitor was isolated from fermentergrown mycelium of A. rabiei and it mainly consisted of glucose, mannose and N-acetylgalactosamin. Time course an...
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