FIG. 2.

Dendrogram of the 40 most amylolytic of the lactic acid bacteria isolated from pozol (samples A [strains marked with an “A”] and B [strains with no letter in the numbering system]) based on EcoRI ribotyping. Schematic ribopatterns are shown. A similarity analysis was performed by using the procedure of Link et al. (19) and clustering by UPGMA. Identifications of “a,” “b,” and “c” were based on a partial sequence (corresponding to positions 30 to 338 of the Escherichia coli 16S rRNA gene), and identifications of “d” were based on a nearly full sequence (corresponding to positions 30 to 1521 of the E. coli 16S rRNA gene) 16S rRNA gene sequence comparisons. The percent similarity values of the 16S rRNA gene sequence comparison identifications are shown in parentheses.