Table 1.
Sphingolipid Long-Chain Base Composition of Leaves from Wild-Type (Col-0) and LCB1i-4 RNAi Suppression Plants
| Plant | t18:1(Z) | t18:1(E) | t18:0 | d18:1(Z) | d18:1(E) | d18:0 |
|---|---|---|---|---|---|---|
| Wild type | 19.6 ± 1.0 | 64.2 ± 3.2 | 6.0 ± 0.8a | 1.2 ± 0.3 | 7.6 ± 1.8 | 1.0 ± 0.3a |
| LCB1i-4 | 14.1 ± 1.2 | 48.2 ± 3.3 | 27.5 ± 4.5a | 0.9 ± 0.2 | 5.0 ± 1.4 | 4.5 ± 0.7a |
Values shown are mol %. Each value is the mean of 10 independent measurements ± sd. t18:1(E or Z), 4-hydroxy-8-(trans or cis)-sphingenine; t18:0, 4-hydroxysphinganine or phytosphingosine; d18:1(E or Z), 8-(trans or cis)-sphingenine; d18:0, sphinganine or dihydrosphingosine.
a
Student's t test indicated that both t18:0 and d18:0 are significantly increased in LCB1i-4 plants compared with wild-type plants (P < 0.001).