Control of Nitrogenase Reactivation by the GlnZ Protein in Azospirillum brasilense |
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| Authors: | Giseli Klassen Emanuel M de Souza M Geoffrey Yates Liu Un Rigo Juliana Inaba and Fbio de Oliveira Pedrosa |
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| Institution: | Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, 81531-970, Curitiba, Paraná, Brazil. |
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| Abstract: | The glnZ mutant of Azospirillum brasilense (strain 7611) showed only partial recovery (20 to 40%) after 80 min of ammonia-induced nitrogenase switch-off, whereas the wild type recovered totally within 10 min. In contrast, the two strains showed identical anoxic-induced switch-on/switch-off, indicating no cross talk between the two reactivation mechanisms. |
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