Any process that activates or increases the frequency, rate or extent of spermidine biosynthetic process.
Synonyms:
exact_synonym:
activation of spermidine anabolism; activation of spermidine biosynthesis; activation of spermidine formation; activation of spermidine synthesis; positive regulation of spermidine anabolism; positive regulation of spermidine biosynthesis; positive regulation of spermidine formation; positive regulation of spermidine synthesis; up regulation of spermidine anabolism; up regulation of spermidine biosynthesis; up regulation of spermidine biosynthetic process; up regulation of spermidine formation; up regulation of spermidine synthesis; upregulation of spermidine anabolism; upregulation of spermidine biosynthesis; upregulation of spermidine biosynthetic process; upregulation of spermidine formation; upregulation of spermidine synthesis