Legume specificity is encoded in rhizobial genetic elements that may be transferred among
species and genera. Dissemination (by lateral transfer) of gene assemblies dictating host …

Common bean (Phaseolus vulgaris) has become a cosmopolitan crop, but was originally
domesticated in the Americas and has been grown in Latin America for several thousand …

The second edition of this book, first published in 1991 and intended for students and
researchers, contains revised and updated material on the theory and practice of nitrogen …

Nitrogen is often a limiting nutrient, therefore the sustainability of food crops, forages and
green manure legumes is mainly associated with their ability to establish symbiotic …

Phaseolus vulgaris L.(common bean) is a legume indigenous to American countries
currently cultivated in all continents, which is nodulated by different rhizobial species and …

A collection of 160 isolates of rhizobia nodulating Phaseolus vulgaris in three geographical
regions in Tunisia was characterized by restriction fragment length polymorphism analysis of …

Edaphic factors constrain bean production in most areas where this crop is grown. They
include nutrient constraints particularly N and P deficiency, soil acidity including Al and …

Nodulation of common bean was explored in six oases in the south of Tunisia. Nineteen
isolates were characterized by PCR–RFLP of 16S rDNA. Three species of rhizobia were …

The taxonomic affiliations of nineteen root-nodule bacteria isolated from the common bean
(Phaseolus vulgaris L.) in Mexico, Ecuador and Brazil were investigated by analyses of 16S …

The stability of the genetic structure of rhizobial populations nodulating Phaseolus vulgaris
cultivated in a traditionally managed milpa plot in Mexico was studied over three …