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Uptake of aluminium by the root tips of an Al-sensitive and Al-tolerant cultivar of Zea mays

Pintro J., Barloy J., Fallavier Paul. 1998. Uptake of aluminium by the root tips of an Al-sensitive and Al-tolerant cultivar of Zea mays. Plant Physiology and Biochemistry, 36 (6) : pp. 463-467.

Journal article ; Article de revue à facteur d'impact
Full text not available from this repository.

Autre titre : Absorption d'aluminium par les extrémités racinaires de cultivars de Zea mays sensible et tolérant à l'aluminium

Abstract : Uptake and compartmentation of Al in the roots tips were investigated in two corn (Zea mays L.) cultivars (HS7777 single sensitive hybrid and C525-M single tolerant hybrid). Seedlings were grown for 24 h in nutrient solution at pH 4.4 characterized by low ionic strength (2,06 microM) and low Al3+ activity (10.3 microM). The root elongation decreased strongly for the sensitive cultivar. There were no differences in the contents of total Al in the entire roots between cultivars. Nonexchangeable-Al and exchangeable-Al contents were higher in the root tips of HS7777. The sensitive cultivar also showed higher total and exchangeable-Al contents in excised root tips in 180 min of Al uptake. Al uptake for both cultivars increased in solution containing 0.1 mM of 2,4-dinitrophenol. Al contents were higher for the tolerant cultivar. (Résumé d'auteur)

Mots-clés Agrovoc : Zea mays, Variété, Aluminium, Toxicité du sol, Absorption de substances nutritives, Racine, Résistance aux facteurs nuisibles, Taux de croissance, Expérimentation en laboratoire

Classification Agris : F61 - Plant physiology - Nutrition
H50 - Miscellaneous plant disorders
P35 - Soil fertility

Auteurs et affiliations

  • Pintro J.
  • Barloy J.
  • Fallavier Paul, CIRAD-AMIS-AGRONOMIE (FRA)

Autres liens de la publication

  • Document en bibliothèque
  • Localisation du document : CD_BR7378 [(Bibliothèque de Lavalette)] ; CD_PA935 [(Bibliothèque de Lavalette)]

Source : Cirad - Agritrop (https://agritrop.cirad.fr/390790/)

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