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2069886 
Journal Article 
Effect of xenobiotics on endomycorrhizal infection and isoflavonoid accumulation in soybean roots 
Morandi, D 
1989 
1 
Plant Physiology and Biochemistry
ISSN: 0981-9428
EISSN: 1873-2690 
BIOSIS/90/06002 
PARIS 
PARIS 
697-702 
eng 
BIOSIS COPYRIGHT: BIOL ABS. Four xenobiotics were applied to soybeans (Glycine max) inoculated or not with a vesicular-arbuscular mycorrhizal (VAM) fungus: fosetyl-Al (aluminium tris(0-ethylphosphonate)), glyphosphate (N-phosphonomethyl glycine), alpha-aminooxyacetic acid (AOA) and ethrel (2-chloroethyl phosphonic acid), a compound which releases ethylene. All these compounds affected VAM infection; the effect was positive with fosetyl-Al and glyphosphate and negative with the others. Glyphosate and ethrel had a positive effect on glyceollin concentration, AOA a negative one and fosetyl-Al none. These results suggest that phytoalexins are not a major factor in the control of VAM development, and emphasize the fact that the use of xenobiotics can significantly modify the physiological state of the root system and the plant-VAM fungus interaction.