Emended Descriptions of the Genus Alcaligenes and of Alcaligenes faecalis and Proposal That the Generic Name Achromobacter be Rejected: Status of the Named Species of Alcaligenes and Achromobacter: Request for an Opinion

The descriptions of the genus Alcaligenes Castellani and Chalmers and Alcaligenes faecalis Castellani and Chalmers have been emended. It is requested that the Judicial Commission issue an Opinion rejecting the name Achromobacter Bergey et al. as a nomen dubium. It is proposed, on the basis of a comparison of type and reference strains, that Alcaligenes denitrificans Leifson and Hugh, Achromobacter arsenoxydans-tres Turner, and Alcaligenes odorans (MAlek and KazdovA-KožiskovA) MAlek et al. be considered as subjective synonyms of A. faecalis. The proposed taxonomic status of all known previously described species of the genera Alcaligenes and Achromobacter is indicated in appendixes.