negative regulation of (R)-mevalonic acid biosynthetic process
negative regulation of 17-methylnonadec-1-ene biosynthetic process
negative regulation of 18-methylnonadec-1-ene biosynthetic process
negative regulation of abscisic acid biosynthetic process
negative regulation of aflatoxin biosynthetic process
negative regulation of alkane biosynthetic process +
negative regulation of androst-4-ene-3,17-dione biosynthetic process
negative regulation of asperthecin biosynthetic process
negative regulation of bile acid biosynthetic process
negative regulation of butyryl-CoA catabolic process to butanol
negative regulation of carotenoid biosynthetic process
negative regulation of chanoclavine-I aldehyde biosynthetic process
negative regulation of citrulline biosynthetic process
negative regulation of diacylglycerol biosynthetic process
negative regulation of emericellamide biosynthetic process +
negative regulation of emodin biosynthetic process
negative regulation of endocrocin biosynthetic process
negative regulation of ent-pimara-8(14),15-diene biosynthetic process
negative regulation of ethylene biosynthetic process
negative regulation of fatty acid biosynthetic process +
negative regulation of fumagillin biosynthetic process
negative regulation of fumonisin biosynthetic process
negative regulation of gerfelin biosynthetic process
negative regulation of gibberellin biosynthetic process
negative regulation of gliotoxin biosynthetic process
negative regulation of gluconeogenesis
negative regulation of glutathione biosynthetic process
negative regulation of helvolic acid biosynthetic process
negative regulation of hexadecanal biosynthetic process
negative regulation of histidine biosynthetic process
negative regulation of homoserine biosynthetic process
negative regulation of hormone biosynthetic process +
negative regulation of hydrogen peroxide biosynthetic process
negative regulation of hydrogen sulfide biosynthetic process
negative regulation of inositol phosphate biosynthetic process +
negative regulation of isoprene biosynthetic process
negative regulation of juvenile hormone biosynthetic process
negative regulation of kojic acid biosynthetic process
negative regulation of L-ascorbic acid biosynthetic process
negative regulation of L-dopa biosynthetic process
negative regulation of L-glutamine biosynthetic process
negative regulation of L-leucine biosynthetic process
negative regulation of lysine biosynthetic process via aminoadipic acid +
negative regulation of macromolecule biosynthetic process +
negative regulation of monodictyphenone biosynthetic process
negative regulation of naphtho-gamma-pyrone biosynthetic process
negative regulation of nonadec-1-ene biosynthetic process
negative regulation of o-orsellinic acid biosynthetic process
negative regulation of octadecene biosynthetic process
negative regulation of penicillin biosynthetic process
negative regulation of phosphatidic acid biosynthetic process
negative regulation of phosphatidylcholine biosynthetic process
negative regulation of phosphatidylglycerol biosynthetic process
negative regulation of phosphatidylinositol biosynthetic process +
negative regulation of phosphatidylserine biosynthetic process
negative regulation of phospholipid biosynthetic process +
negative regulation of phytoalexin biosynthetic process
negative regulation of polyketide biosynthetic process +
negative regulation of proline biosynthetic process
negative regulation of quinolinate biosynthetic process
negative regulation of retinoic acid biosynthetic process
negative regulation of sarcinapterin biosynthetic process
negative regulation of sphingolipid biosynthetic process +
Any process that decreases the rate, frequency or extent of sphingolipid biosynthesis. Sphingolipid biosynthesis is the chemical reactions and pathways resulting in the formation of sphingolipids, any of a class of lipids containing the long-chain amine diol sphingosine or a closely related base (a sphingoid).
negative regulation of sterigmatocystin biosynthetic process
negative regulation of steroid biosynthetic process +
negative regulation of tatiopterin biosynthetic process
negative regulation of tensidol A biosynthetic process
negative regulation of tensidol B biosynthetic process
negative regulation of testosterone biosynthetic process
negative regulation of thiamine biosynthetic process
negative regulation of thiamine diphosphate biosynthetic process
negative regulation of triglyceride biosynthetic process +
negative regulation of trypanothione biosynthetic process
negative regulation of ubiquinone biosynthetic process
negative regulation of vitamin D biosynthetic process +
negative regulation of wax biosynthetic process
negative regulation of xanthone-containing compound biosynthetic process +
positive regulation of sphingolipid biosynthetic process +
regulation of ceramide biosynthetic process +
regulation of sphingolipid biosynthetic process +
sphinganine-1-phosphate biosynthetic process
sphingoid biosynthetic process +
sphingolipid biosynthesis involved in endoplasmic reticulum membrane organization