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Fast‐growing bacteria from nodules of cowpea ( Vigna unguiculata (L.) Walp.)
Author(s) -
Dakora F.D.,
Vincent J.M.
Publication year - 1984
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1984.tb01355.x
Subject(s) - vigna , bradyrhizobium , biology , inoculation , antiserum , botany , bacteria , root nodule , horticulture , rhizobium , symbiosis , antigen , genetics
D akora , F.D. & V incent , J.M. 1984. Fast‐growing bacteria from nodules of cowpea ( Vigna unguiculata (L.) Walp.) Journal of Applied Bacteriology 56 , 327–330. First plating from nodules of cowpea frequently yielded fast‐growing large colonies, either apparently uniform or associated with small colony forms typical of the expected slow‐grower ( Bradyrhizobium ). Most cultures from single large colonies nodulated both cowpea and siratro ( Macroptilium atropurpureum ), but all such nodules revealed Bradyrhizobium alone or associated with a fast‐growing form. Six of nine plants inoculated with a mixed inoculum of slow and fast forms had nodules occupied by both although in no case was the fast‐grower able to secure solo invasion. Most of the fast‐growing forms shared some internal antigens with Rhizo‐biurn meliloti and/or R. trifolii ; none reacted with antiserum to Bradyrhizobium CB 756.