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Suppression of nodulation in soybeans by superoptimal inoculation with Bradyrhizobium japonicum
Author(s) -
Takats Stephen T.
Publication year - 1986
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1986.tb05597.x
Subject(s) - bradyrhizobium japonicum , inoculation , bradyrhizobium , biology , glycine , strain (injury) , rhizobiaceae , symbiosis , botany , horticulture , bacteria , rhizobium , genetics , amino acid , anatomy
Symbiotic nodulation of the primary roots of soybeans ( Glycine max L. Merrill cv. Pride 216) is regulated by the plant, and is suppressed in response to a high inoculum dose of Bradyrhizobium japonicum USDA strain I–110 (ARS) + applied at one time to the root. If an optimal dose is followed 10 h later by a superoptimal dose, nodules from the first inoculum near the base of the primary root are suppressed in a dose‐dependent way similar to that observed after single inoculations. The nodules which appear are probably derived from infections initiated by the bacteria in both inocula.