Symbiotic hydrogenase activity in Bradyrhizobium sp. (Vigna) increases nitrogen content in Vigna unguiculata plants.
Bradyrhizobium sp. (Lupinus) and Bradyrhizobium sp. (Vigna) mutants in which hydrogenase (hup) activity was affected were constructed and analyzed. Vigna unguiculata plants inoculated with the Bradyrhizobium sp. (Vigna) hup mutant showed reduced nitrogenase activity and also a significant decrease in nitrogen content, suggesting a relevant contribution of hydrogenase activity to plant yield.
Baginsky
Cecilia
C
Laboratory of Microbiology, Department of Biotechnology, E.T.S. Ingenieros Agrónomos, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
Brito
Belén
B
Imperial
Juan
J
Ruiz-Argüeso
Tomás
T
Palacios
Jose M
JM
D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism; D020369:Bradyrhizobium / Q000201:enzymology* / Q000235:genetics; D007887:Fabaceae / Q000378:metabolism / Q000382:microbiology*; D005786:Gene Expression Regulation; D006864:Hydrogenase / Q000235:genetics / Q000378:metabolism*; D009154:Mutation; D009584:Nitrogen / Q000378:metabolism*; D009586:Nitrogen Fixation; D013559:Symbiosis; D015854:Up-Regulation
D001426:Bacterial Proteins; D006864:Hydrogenase; D009584:Nitrogen