Phytoene desaturase

Phytoene desaturase may refer to:
 * 15-Cis-phytoene desaturase, enzymes involved in the carotenoid biosynthesis in plants and cyanobacteria
 * Phytoene desaturase (lycopene-forming), enzymes found in archaea, bacteria and fungi that are involved in carotenoid biosynthesis
 * Phytoene desaturase (zeta-carotene-forming), an enzyme with systematic name 15-cis-phytoene:acceptor oxidoreductase (zeta-carotene-forming)
 * Phytoene desaturase (neurosporene-forming), an enzyme with systematic name 15-cis-phytoene:acceptor oxidoreductase (neurosporene-forming)
 * Phytoene desaturase (3,4-didehydrolycopene-forming), an enzyme with systematic name 15-cis-phytoene:acceptor oxidoreductase (3,4-didehydrolycopene-forming)