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Fig. 1 | BMC Plant Biology

Fig. 1

From: Interaction of zinc and IAA alleviate aluminum-induced damage on photosystems via promoting proton motive force and reducing proton gradient in alfalfa

Fig. 1

IAA contents in shoots (a) of alfalfa seedlings with apical buds grown in 1.5 mM Ca(NO3)2 medium (pH 4.5) containing 0 μM AlCl3 (pH 4.5), 100 μM AlCl3 (pH 4.5 + Al), 100 μM AlCl3 and 25 μM ZnCl2 (pH 4.5 + Al + 25 μM Zn), or 100 μM AlCl3 and 50 μM ZnCl2 (pH 4.5 + Al + 50 μM Zn) on 3 d. Fresh weights of root (b) and shoot (c) of alfalfa seedlings grown in 1.5 mM Ca(NO3)2 mediums (pH 4.5) containing 0 μM AlCl3 (pH 4.5), 100 μM AlCl3 (pH 4.5 + Al), 100 μM AlCl3 and 50 μM ZnCl2 (pH 4.5 + Al + Zn), 100 μM AlCl3 and 6 mg L− 1 IAA (foliar spray) (pH 4.5 + Al + IAA) or 100 μM AlCl3 and 50 μM ZnCl2 and 6 mg L− 1 IAA (foliar spray) (pH 4.5 + Al + Zn + IAA). Data are means ± SE of three replicates from three independent experiments. Bars with different letters indicate significant difference at P < 0.05 (Leas significant difference test)

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