Table 3.
Amine group containing metabolites identified in the phloem of wheat as measured by LC-MS collected at two maturities ( n =4), unless otherwise stated mean and standard error of all quantitated metabolites are reported as mMol L -1
| Metabolite | Mean | SE |
|---|---|---|
| Ammonia (ISTD RR) |
33.8 |
1.275 |
| Glutathione (ISTD RR) |
0.58 |
0.0905 |
| Glutamine |
170.8 |
50.895 |
| Valine |
75.5 |
17.52 |
| Histidine |
64.7 |
25.24 |
| Serine |
63.1 |
25.455 |
| Glutamate |
36.3 |
15.32 |
| Arginine |
39.8 |
3.74 |
| Alanine |
42.0 |
6.045 |
| Proline |
21.2 |
8.125 |
| Phenylalanine |
58.1 |
18.365 |
| Threonine |
49.7 |
15.515 |
| Isoleucine |
44.3 |
11.275 |
| Leucine |
43.7 |
16.34 |
| Tryptophan |
44.1 |
8.405 |
| Lysine |
48.0 |
10.315 |
| Glycine |
39.9 |
18.275 |
| Tyrosine |
27.7 |
9.495 |
| Aspartic acid |
18.7 |
7.205 |
| Methionine |
18.8 |
8.31 |
| Asparagine |
7.4 |
2.77 |
| β-Alanine |
1.7 |
0.595 |
| GABA |
1.1 |
0.45 |
| Ornithine |
1.2 |
0.58 |
| Citrulline (μmol L-1) |
232.3 |
39.14 |
| Nicotianamine (μmol L-1)* |
255.4 |
96.71 |
| Cysteine (μmol L-1) |
70.9 |
13.91 |
| 4-Hydroxy-proline (μmol L-1) | 38.5 | 9.675 |
Metabolites that were measured but did not have an external standard are reported as a ratio of response in relation to the internal standard (ISTD RR). *n = 3, outlier was removed.