EC Number   |
General Information |
Reference |
|---|
   1.14.19.4 | malfunction |
in enzyme knockout plants, changes in leaf cell structure under a chilling treatment are observed by transmission electron microscopy. The degree of chilling damage is greater in SlSLD-silenced plants than in control plants, indicating that SlSLD knockdown significantly reduces the chilling resistance of tomato. Compared with control plants, SlSLD-silenced plants show higher relative electrolytic leakage and malondialdehyde content, and lower superoxide dismutase and peroxidase activities after a chilling treatment. Chilling severely damages the chloroplasts in SlSLD-silenced plants, resulting in the disruption of chloroplast membranes, swelling of thylakoids, and reduced granal stacking |
746465 |
| 1.14.19.4 | metabolism |
SlSLD1 and 2 are important chilling stress-responsive genes involved in sphingolipid metabolism |
746465 |
| 1.14.19.4 | physiological function |
isozymes AtSLD1 and AtSLD2 desaturate the DELTA8 position of the long-chain bases (LCBs) of sphingolipids in the endoplasmic reticulum membrane, and include a cytochrome b5-like domain at the N-terminus. 90% of Arabidopsis thaliana long-chain bases contain a cis or trans double bond at the DELTA8 position, and their desaturation is catalyzed by AtSLD1 and AtSLD2 |
-, 746153 |
| 1.14.19.4 | physiological function |
the sphingolipid biosynthetic enzyme sphingolipid delta8 desaturase is important for chilling resistance of tomato. The enzyme encoding gene SlSLD belongs to the chilling stress-responsive genes related to sphingolipid metabolism |
746465 |
