Figure 6: Concentrations of DMA and NA and nutrients in rice shoots. | Scientific Reports

Figure 6: Concentrations of DMA and NA and nutrients in rice shoots.

From: Identification of metal species by ESI-MS/MS through release of free metals from the corresponding metal-ligand complexes

Figure 6

The relative abundance of the metal–DMA (a) and metal–NA (b) complexes in shoots of rice, indica (Ind) and japonica (Jp), was obtained by normalizing the peak area of the complexes to peak area of internal standard (leucine enkephalin, 2 ppm) in positive ESI mode by UPLC-ESI-Q-TOF-MS with a mean ± SD of three replicates. Shoot samples were collected from rice plants treated with control (C) and Fe deficiency (-Fe) for 7 days. The concentrations of DMA (c) and NA (d) in shoots samples were calculated in positive ESI mode by UPLC-ESI-Q-TOF-MS with a mean ± SD of three replicates. The concentrations of iron (e), zinc (f) and copper (g) in shoots of rice varieties were determined by ICP-OES. Data are the mean ± SD of three replicates with pooled 8 plants. Asterisks denote significant differences compared with control. *P < 0.05; **P < 0.01 by Student’s t test. FW, fresh biomass; DW, dry biomass.

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