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Are phloem amino, acids involved in the shoot to root control of NO3uptake in Ricinus communis plants?

P. Tillard ; L. Passama ; A. Gojon | 1998

The putative role of phloem amino acids as negative feedback signals for root NO3- uptake was investigated in Ricinus communis L, The NO3--grown plants were subjected to N-deficiency due either to complete N-deprivation, or to localized N-depriv[...]

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Composition minerale de diverses especes calcicoles et calcifuges de la region mediterraneenne francaise

L. Passama | 1970

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