Fig. 4
From: Alleviation of iron deficiency in pear by ammonium nitrate and nitric oxide
Effects of NH4NO3 and NO on iron absorption capacity and soluble iron content of pear under iron deficiency stress. A Effects of NH4NO3 and NO on FCR activity in pear leaves under iron deficiency. B Soluble Fe content of newly expanded leaves and roots. C The relative expression levels of iron absorption genes (PbFRO2, PbFRO4) and iron transport genes (PbIRT1, PbIRT1-like). The data are expressed as the mean ± SD (n = 3). Different letters indicate significant differences at P < 0.05 (LSD test)