Los Tuxtlas is the northernmost rain forest in North America and is rich in Bradyrhizobium with an unprecedented number of novel lineages. ITS sequence analysis of legumes in polycultures from Los Tuxtlas led to the identification of Phaseolus lunatus and Vigna unguiculata in addition to Phaseolus vulgaris as legumes associated with maize in crops. Bacterial diversity of isolates from nitrogen-...
