alexa Investigations on iron uptake and reduction by excised roots of different grapevine rootstocks and a V. vinifera cultivar
Biochemistry

Biochemistry

Journal of Plant Biochemistry & Physiology

Author(s): L Bavaresco, M Fregoni, P Fraschini

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Roots from cuttings of grapevine rootstocks V. Berlandieri × V. rupestris 140 Ru, V. Berlandieri × V. riparia SO4, V. riparia × V. rupestris 101–14 and a V. vinifera cultivar (Pinot blanc), with a decreasing degree of chlorosis resistance, were excised and tested to quantify physiological and morphological parameters, as follows: 59Fe uptake from an FeEDTA solution; reducing capacity; root diameter and root hair occurrence. The most significant findings are that: a) 59Fe uptake and FeEDTA reduction decreased from the most chlorosis resistant rootstock (‘140 Ru’) to the most susceptible one (‘101–14’) and to Pinot blanc; b) 59Fe uptake and reducing capacity were closely related; c) iron uptake and reduction were closely related to the root diameter and root hair occurrence, within the rootstocks.

This article was published in Plant and Soil and referenced in Journal of Plant Biochemistry & Physiology

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