title: Investigation of cerium and yttrium ions effects on microbial nitrogen fixation and determination of inhibition.
abstract: Critical investigation of the effect of yttrium and cerium ions in culture media for nitrogen-fixing bacteria showed strong inhibition. There was a decrease in the amount of nitrogen fixed; simultaneously, in the samples containing cerium ions, carbon consumption values increased as the molarity of metal ion was enhanced. Inhibition rate was invariably maximum at the highest concentration of metal ions.
mesh_terms: D001419:Bacteria / Q000187:drug effects* / Q000378:metabolism; D002244:Carbon / Q000378:metabolism; D002563:Cerium / Q000494:pharmacology*; D003864:Depression, Chemical; D009586:Nitrogen Fixation / Q000187:drug effects*; D013045:Species Specificity; D015019:Yttrium / Q000494:pharmacology*
chemical_list: D002563:Cerium; D015019:Yttrium; D002244:Carbon