African cowpea cultivars are mostly promiscuous and nodulate
with indigenous Rhizobium strain present in the soil.
She describes plant taxonomy, the global distribution of legumes, ideas on the evolution of nodulation and its development and functioning, bacteria known to nodulate
legumes, and the possible development of new uses for legumes and work on underdeveloped legume crops.
The reference strain RCR2011 and 11 local swains chosen according to their molecular profiles and their geographic origin were tested for ability to nodulate
and fix nitrogen with M.
In addition, this grain legume species also has a reputation for weakness in its ability to nodulate
and efficiently fix nitrogen in symbiosis (Graham 1981; Graham & Halliday 1987; Graham et al.
Of the plants without NA, tamarack rhizosphere nitrogenase activity is not reported in the literature, but species of Myrica nodulate
with Frankia to become diazotrophic (Troelstra and others, 1992; Young and others, 1992).
There is no point inoculating legume seedlings with strains that don't effectively nodulate
with that species.
These strains were selected during our previous screening program and demonstrated a good potential to nodulate
beans and increase plant growth and yield in greenhouse and field experiments .
Poor soil conditions and intermittent or terminal drought are factors that contribute to the weak ability of Phaseolus vulgaris beans to nodulate
and fix atmospheric nitrogen in symbiosis [4, 13, 15].
New insights into the origins and evolution of rhizobia that nodulate
common bean (Phaseolus vulgaris) in Brazil.
Further evaluation resulted in the isolation of 3 strains of Rhizobium that have the ability to `overcome' this mutation and nodulate
the mutant plant.
For a strain of Methylobacterium, an [alpha]-proteobacterium, can nodulate
Crotalaria, and [beta]-proteobacteria related to Burkholderia can nodulate
Machaerium lunatum and Aspalathus carnosa .
It is clear from these reports that there are molecular differences between the 2 species of Sinorhizobium that may be useful for subsequent investigations of rhizobia that nodulate
other Medicago species.