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Dissolution of ferric phosphate by alfalfa (Medicago sativa L.) root exudates



Dissolution of ferric phosphate by alfalfa (Medicago sativa L.) root exudates



Plant nutrition from genetic engineering to field practice: Proceedings of the Twelfth International Plant Nutrition Colloquium, 21-26 September 1993, Perth, Western Australia: 79-82



Root exudates from M. sativa grown in Fe-deficient hydroponic culture were trapped and condensed on an Amberlite XAD-4 resin column. The ferric phosphate dissolving capability of the diethyl ether soluble fraction of these exudates was 62 times higher than that of exudates from Fe-sufficient plants. The Fe-dissolving compound was identified as 2-(3',5'-dihydroxyphenyl)-5,6-dihydroxybenzofuran by means of mass spectrometry and 1H-NMR.

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Accession: 002596035

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DOI: 10.1007/bf00024987



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