1.14.19.29 evolution a phylogenic tree of the DELTA8-sphingolipid desaturase genes from various plants is constructed to study their evolutionary relationships 745637 1.14.19.29 malfunction enzyme deletion mutants reveal a 50% reduction in glucosylceramide levels and a corresponding increase in glycosylinositolphosphoceramides 734912 1.14.19.29 malfunction gene disruption leads to a decreased hyphal growth rate and increased sensitivity against SDS compared with the wild type strain -, 700049 1.14.19.29 physiological function DELTA8 sphingobase desaturase confer aluminum tolerance in seedlings 689583 1.14.19.29 physiological function the DELTA8-sphingolipid desaturase is able to catalyze desaturation at the C8 position of the long-chain base of sphingolipids in plants 745033 1.14.19.29 physiological function the enzyme contributes to aluminum tolerance 733940