Status	Description	Organism	Genes	References
	three-step phytoene desaturase	Cyanobacterium aponinum	GLC6-867
	three-step phytoene desaturase	Cyanobacterium stanieri	G1353-1873
	zeta-carotene desaturase, three-step phytoene desaturase	Chroococcidiopsis thermalis	GLBB-490
	phytoene desaturase	Halothece sp. PCC 7418	G1652-3569
	desaturase	Pseudanabaena biceps	G11XE-2980
	three-step phytoene desaturase / zeta-carotene desaturase	Prochlorococcus marinus	GI1O-199
	three-step phytoene desaturase / zeta-carotene desaturase	Prochlorococcus marinus	GHRG-150
	phytoene desaturase (neurosporene-forming)	Rhodobacter capsulatus	GJIY-692
	zeta-carotene desaturase / three-step phytoene desaturase	Trichodesmium erythraeum	GJDR-3544
	zeta-carotene desaturase (EC 1.3.99.26) / three-step phytoene desaturase (EC 1.3.99.28)	Thalassiosira pseudonana	GE1Q-6854