Figure 3From: Physiological and molecular characterization of aluminum resistance in Medicago truncatulaAl-accumulation in M. truncatula root apices. (a) Hematoxylin staining of T32 and S70 seedlings exposed to a range of Al concentrations for 48 h. (b) Hematoxylin staining of root apices of M. truncatula grown in 2.5 μM Al solution for 0 to 72 h. Scale bar represents 500 μm.Back to article page