1995
DOI: 10.1007/bf00010276
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Mechanisms of Fe-efficiency in roots of Vitis spp. in response to iron deficiency stress

Abstract: Iron chlorosis induced by Fe-deficiency is a widespread nutritional disorder in many woody plants and in particular in grapevine. This phenomenon results from different environmental, nutritional and varietal factors. Strategy I plants respond to Fe-deficiency by inducing physiological and biochemical modifications in order to increase Fe uptake. Among these, acidification of the rhizosphere, membrane redox activities and synthesis of organic acids are greatly enhanced during Fe-deficiency. Grapevine is a stra… Show more

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Cited by 65 publications
(43 citation statements)
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“…As previously demonstrated (Brancadoro et al 1995), medium acidification and root Fe III reducing capacities for the two Vitis genotypes studied here are related to their adaptation to Fe deficiency. However, when supplied with NH 4 + under Fe-deficiency conditions, both genotypes displayed unexpected responses.…”
Section: Discussionmentioning
confidence: 62%
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“…As previously demonstrated (Brancadoro et al 1995), medium acidification and root Fe III reducing capacities for the two Vitis genotypes studied here are related to their adaptation to Fe deficiency. However, when supplied with NH 4 + under Fe-deficiency conditions, both genotypes displayed unexpected responses.…”
Section: Discussionmentioning
confidence: 62%
“…Cabernet Sauvignon (CS) (Brancadoro et al 1995;Dell'Orto et al 2000a;Tagliavini and Rombolà 2001) and the Fe chlorosis-susceptible genotype Vitis riparia cv Gloire de Montpellier (RG) (Brancadoro et al 1995;Nikolic et al 2000) were acclimated in perlite for 3 weeks. The plants were then transferred to 10-l plastic containers filled with 8-l of a continuously aerated nutrient solution, with 20 plants per container.…”
Section: Plant Materialsmentioning
confidence: 99%
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“…One month later, well-rooted woody cuttings were divided into two lots (ÀHCO 3 À ) and (+HCO 3 À ) and cultivated on inert sand in a glass greenhouse under controlled conditions (16/8 h light/darkness, 2575 1C temperature, 70% relative humidity and PAR=250 mmol m À2 s À1 ). Both plant groups were irrigated for 75 days with a complete nutrient solution (Brancadoro et al, 1995) containing iron (20 mM Fe-Na-EDTA). The pH of the nutrient solution was adjusted to 6.1 with 0.1 M NaOH.…”
Section: Culture Conditionsmentioning
confidence: 99%
“…In addition, there is increased extrusion of protons due to the increased activity of the plasma membrane bound H + -ATPase. This rhizospere acidification also associated with the increased transmembrane electrical potential for the increased driving force for Fe (II) uptake (Brancardo et al, 1995). Strategy II is found in Poaceae members (grasses) under iron deficiency.…”
Section: +mentioning
confidence: 99%