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Table 2 Content and percentage of Se species in rice tissues

From: Uptake, translocation and biotransformation of selenium nanoparticles in rice seedlings (Oryza sativa L.)

Se species 10 μM SeNPs (μg g−1 FW) 30 μM SeNPs (μg g−1 FW) 10 μM selenite (μg g−1 FW) 10 μM selenate (μg g−1 FW)
Shoots
 SeCys2 ND ND ND 0.10 ± 0.00 a (1.10%)
 MeSeCys ND 0.10 ± 0.01 a (15.69%) 0.11 ± 0.01 a (3.68%) 0.09 ± 0.00 a (0.98%)
 Se(IV) ND ND ND 0.05 ± 0.00 a (0.56%)
 SeMet 0.43 ± 0.02 c (95.18%)* 0.39 ± 0.02 c (63.19%) 3.10 ± 0.15 b (102.16%) 3.39 ± 0.09 a (36.83%)
 Se(VI) ND ND 0.13 ± 0.01 b (4.29%) 7.09 ± 0.06 a (77.06%)
Roots
 SeCys2 0.16 ± 0.00 c (0.93%) 0.33 ± 0.03 b (0.80%) 0.49 ± 0.02 a (2.17%) 0.13 ± 0.01 c (1.72%)
 MeSeCys 0.17 ± 0.02 c (0.97%) 0.32 ± 0.02 b (0.79%) 0.48 ± 0.02 a (2.15%) ND
 Se(IV) 0.07 ± 0.01 b (0.38%) 0.07 ± 0.00 b (0.18%) 0.36 ± 0.01 a (1.61%) ND
 SeMet 1.12 ± 0.03 b (6.31%) 1.05 ± 0.06 b (2.56%) 5.94 ± 0.06 a (26.58%) 0.42 ± 0.00 c (5.59%)
 Se(VI) ND ND 0.13 ± 0.00 b (0.59%) 4.91 ± 0.18 a (65.94%)
  1. Data presented as mean ± SE (n = 3). Different letters in the same line indicate significant differences between the treatments at p < 0.05 according to the Duncan’s test
  2. SeCys2 selenocystine, MeSeCys Se-methyl-selenocysteine, Se(IV) selenite, SeMet selenomethionine, Se(VI) selenate, ND not detected
  3. *Values in parentheses represent Se species percentage in rice shoots or roots calculated using the expression: Se species content / total tissue content × 100%