Open AccessSymbiotic Hydrogenase Activity in Bradyrhizobium sp. ( Vigna ) Increases Nitrogen Content in Vigna unguiculata Plants
Author(s) -
Cecilia Baginsky,
Belén Brito,
Juan Imperial,
Tomás RuizArgüeso,
José Luís Calvo Palacios
Publication year - 2005
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.71.11.7536-7538.2005
Subject(s) - vigna , bradyrhizobium , nitrogenase , bradyrhizobium japonicum , nitrogen fixation , biology , hydrogenase , inoculation , rhizobiaceae , botany , mutant , symbiosis , horticulture , bacteria , rhizobium , biochemistry , enzyme , gene , genetics
Bradyrhizobium sp. (Lupinus ) andBradyrhizobium sp. (Vigna ) mutants in which hydrogenase (hup ) activity was affected were constructed and analyzed.Vigna unguiculata plants inoculated with theBradyrhizobium 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.