Copper and cobalt in nitrogen fixation.
D003035:Cobalt / Q000378:metabolism*; D003300:Copper / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D009586:Nitrogen Fixation; D010944:Plants / Q000378:metabolism*
D003035:Cobalt; D003300:Copper; D009584:Nitrogen
COBALT/metabolism; COPPER/metabolism; NITROGEN/metabolism; PLANTS/metabolism