Figure 4 | Scientific Reports

Figure 4

From: Changes in physiological activities and root exudation profile of two grapevine rootstocks reveal common and specific strategies for Fe acquisition

Figure 4

(a) H+ extrusion from roots of Fe-sufficient (Fe+) and for Fe-deficient (Fe−) microcuttings of Ramsey and 140R measured at 15, 30 and 60 min. (b) Time-course of root FCR activity. Reduction of Fe(III)-EDTA by the root apparatus measured after 30, 60, 90 and 120 min and expressed as nmol Fe(II) gFW-1 in Fe-sufficient (Fe+) and for Fe-deficient (Fe−) microcuttings of Ramsey and 140R. The statistical significance was determined by Student’s t-test (mean ± SE, n = 4 plants, *P < 0.05, **P < 0.01, ***P < 0.001).

Back to article page