title: Improved Medium for Isolation of Azospirillum spp.
abstract: Colonies of Azospirillum spp. could be readily distinguished from colonies of other diazotrophs by scarlet coloration in culture media in which Congo red was included.
authors.affiliation: Departamento de Microbiología, Instituto Nacional de Tecnología, Agropecuaria, 1712 Castelar, Buenos Aires, Argentina.
authors.forename: E A
authors.initials: EA
authors.lastname: Cáceres