title: Negative regulation of expression of the nitrate assimilation nirA operon in the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120.
authors.affiliation: Instituto de Bioquímica Vegetal y Fotosíntesis, Centro de Investigaciones Científicas Isla de la Cartuja, Avenida Américo Vespucio 49, E-41092 Seville, Spain.
authors.forename: José Enrique
authors.initials: JE
authors.lastname: Frías
authors.forename: Enrique
authors.initials: E
authors.lastname: Flores