Article
Effect of an ntrC mutation on amino acid or urea utilization and on nitrogenase switch-off in Herbaspirillum seropedicae.
Canadian journal of microbiology - 1 Mar 2008
Gusso Claudio L, de Souza Emanuel M, Rigo Liu Un, de Oliveira Pedrosa Fábio, Yates M G, de M Rego Fabiane G, Klassen Giseli
Abstract excerpt
Herbaspirillum seropedicae is a nitrogen-fixing bacterium that grows well with ammonium chloride or sodium nitrate as alternative single nitrogen sources but that grows more slowly with L-alanine, L-serine, L-proline, or urea. The ntrC mutant strain DCP286A was able to utilize only ammonium or urea of these nitrogen sources. The addition of 1 mmol.L-1 ammonium chloride to the nitrogen-fixing wild-type strain...
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