label: stearoyl-[ACP] desaturase activity
label_lc: stearoyl-[acp] desaturase activity
description: "Catalysis of the reaction: 2 H+ + O2 + octadecanoyl-[ACP] + 2 reduced [2Fe-2S]-[ferredoxin] = (9Z)-octadecenoyl-[ACP] + 2 H2O + 2 oxidized [2Fe-2S]-[ferredoxin]."