Table 3.
The hydrolyzed amino acid concentrations in P. cathayana female and male leaves as affected by solar UV-B radiation.
Amino acids (mg g−1 DW) | MC | MU | FC | FU | F: sex | F: uvb | F: sex×uvb |
---|---|---|---|---|---|---|---|
Aspartic acid | 1.44 ± 0.01c | 1.16 ± 0.00d | 1.67 ± 0.02a | 1.63 ± 0.00b | 0.000 | 0.000 | 0.000 |
Threonine | 0.66 ± 0.00b | 0.52 ± 0.00c | 0.77 ± 0.00a | 0.76 ± 0.00a | 0.000 | 0.001 | 0.000 |
Serine | 0.68 ± 0.00b | 0.55 ± 0.01c | 0.77 ± 0.01a | 0.76 ± 0.00a | 0.000 | 0.000 | 0.000 |
Glutamic acid | 1.85 ± 0.00b | 1.53 ± 0.00c | 2.16 ± 0.01a | 2.16 ± 0.00a | 0.000 | 0.000 | 0.000 |
Glycine | 0.81 ± 0.01b | 0.64 ± 0.00c | 0.94 ± 0.02a | 0.92 ± 0.00a | 0.000 | 0.000 | 0.000 |
Alanine | 1.14 ± 0.00b | 0.90 ± 0.00c | 1.34 ± 0.00a | 1.34 ± 0.00a | 0.000 | 0.000 | 0.000 |
Cystine | 0.06 ± 0.00a | 0.06 ± 0.00a | 0.06 ± 0.00a | 0.06 ± 0.00a | 0.408 | 0.061 | 0.119 |
Valine | 0.87 ± 0.01b | 0.70 ± 0.00c | 1.03 ± 0.01a | 1.03 ± 0.00a | 0.000 | 0.000 | 0.000 |
Methionine | 0.14 ± 0.00b | 0.10 ± 0.01c | 0.20 ± 0.01a | 0.20 ± 0.00a | 0.000 | 0.000 | 0.000 |
Isoleucine | 0.67 ± 0.00b | 0.52 ± 0.00c | 0.78 ± 0.01a | 0.79 ± 0.00a | 0.000 | 0.001 | 0.000 |
Leucine | 1.27 ± 0.00c | 0.97 ± 0.00d | 1.58 ± 0.01a | 1.55 ± 0.00b | 0.000 | 0.000 | 0.000 |
Tyrosine | 0.35 ± 0.01b | 0.25 ± 0.00c | 0.44 ± 0.00a | 0.44 ± 0.01a | 0.000 | 0.000 | 0.000 |
Phenylalanine | 0.75 ± 0.00b | 0.58 ± 0.00c | 0.92 ± 0.00a | 0.91 ± 0.00a | 0.000 | 0.000 | 0.000 |
Lysine | 0.49 ± 0.01a | 0.35 ± 0.00b | 0.49 ± 0.01a | 0.49 ± 0.00a | 0.000 | 0.000 | 0.000 |
Histidine | 0.37 ± 0.00b | 0.32 ± 0.01c | 0.44 ± 0.01a | 0.43 ± 0.00a | 0.000 | 0.000 | 0.000 |
Arginine | 0.56 ± 0.00c | 0.43 ± 0.00d | 0.70 ± 0.01a | 0.68 ± 0.00b | 0.000 | 0.000 | 0.000 |
Proline | 0.66 ± 0.01c | 0.56 ± 0.00d | 0.83 ± 0.01a | 0.81 ± 0.00b | 0.000 | 0.000 | 0.000 |
MC, males under low UV-B radiation; MU, males under high UV-B radiation; FC, females under low UV-B radiation; FU, females under high UV-B radiation; DW, dried weight; Fsex, sex effect; Fuvb, UV-B effect; Fsex×uvb, the interactive effect of sex and UV-B; Values followed by different letters in the same row are significantly different at the P < 0.05 level according to Tukey's test. Values are mean ± SE (n = 3).