Table 2. Metabolite levels in leaves of bermudagrass exposed for 14 d to different concentrations of Cd (0, 1.5 mM).
| Metabolites | WB 242 | WB 144 | ||
| Ck | Cd | Ck | Cd | |
| Amino acids | ||||
| Alanine | 0.074 c | 0.106 b | 0.360 a | 0.168 b |
| Valine | 0.066 a | 0.024 c | 0.034 bc | 0.043 b |
| Serine | 0.031 bc | 0.088 a | 0.017 c | 0.039 b |
| Threonine | 0.066 b | 0.098 a | 0.033 c | 0.031 c |
| Isoleucine | UD | UD | 0.010 b | 0.024 a |
| Glycine | 0.043 b | 0.072 a | 0.030 c | 0.049 b |
| β-Alanine | 0.006 b | 0.006 b | 0.024 b | 0.113 a |
| GABA | 0.042 b | 0.068 a | 0.035 b | 0.025 c |
| Proline | 0.027 c | 0.174 a | 0.024 c | 0.062 b |
| Aspartic acid | 0.251 a | 0.190 b | 0.263 a | 0.113 b |
| Asparagine | 0.026 b | 0.077 a | 0.084 a | 0.070 a |
| Norvaline | 0.145 ab | 0.174 a | 0.102 ab | 0.086 b |
| Glutamic acid | 0.595 a | 0.494 a | 0.394 b | 0.419 b |
| Tyrosine | 0.035 a | UD | 0.008 b | 0.007 b |
| Gulonic acid | 0.027 b | 0.074 a | 0.007 c | 0.038 b |
| Threonic acid | 0.031 b | 0.036 b | 0.061 ab | 0.079 a |
| Sugars | ||||
| Xylulose | 0.307 a | 0.210 a | 0.032 b | 0.027 b |
| Fructose | 0.217 b | 0.389 b | 0.259 b | 0.979 a |
| Galactose | 0.202 b | 0.514 a | 0.094 c | 0.322 b |
| Talose | 0.328 c | 1.368 a | 0.164 c | 0.845 b |
| Glucoheptose | 0.053 b | 0.264 a | 0.055 b | 0.229 a |
| Trehalose | 0.027 c | 0.139 b | 0.132 b | 0.217 a |
| Sucrose | 12.934 a | 13.178 a | 21.602 a | 23.130 a |
| Cellobiose | 0.361 a | 0.486 a | 0.596 a | 0.251 a |
| Organic acids | ||||
| Oxalic acid | 0.421 b | 0.710 a | 0.404 b | 0.548 a |
| Succinic acid | 0.010 b | 0.020 a | 0.007 b | 0.017 a |
| Glyceric acid | 0.086 b | 0.146 a | 0.094 b | 0.090 b |
| Oxoglutaric acid | 1.764 b | 2.127 a | 0.008 c | 0.022 c |
| Isocitric acid | 1.661 b | 1.593 c | 3.130 a | 2.283 b |
| Citric acid | 2.526 b | 4.685 a | 1.356 c | 2.004 b |
| Malic acid | 1.837 c | 3.948 a | 1.616 c | 2.064 b |
| Fatty acids | ||||
| Hexadecanoic acid | 0.206 a | 0.265 a | 0.217 a | 0.199 a |
| Octadecanoic acid | 0.136 a | 0.163 a | 0.259 a | 0.242 a |
| Glycerol | 0.276 b | 0.472 a | 0.276 b | 0.484 a |
| Others | ||||
| Myo-Inositol | 0.270 a | 0.195 a | 0.205 a | 0.229 a |
| Glyceryl-glycoside | 0.556 b | 0.570 b | 1.059 a | 0.035 c |
| Galactinol | 0.820 a | 0.627 a | 0.693 a | 0.341 b |
| Phosphate | 0.052 a | 0.057 a | 0.136 a | 0.054 a |
| Ethanolamine | 0.094 a | 0.053 a | 0.090 a | 0.075 a |
Means followed by the different letter in a row for each metabolite was not significantly different based on Tukey's test (P<0.05). UD, undeterminable.