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Nematode growth on Y. pestis and Y. pseudotuberculosis strains. The percentage of L4 C. elegans was determined 2 days after eggs were laid on lawns of the indicated strains. gmhA genotypes: +, wild type; −, chromosomal deletion; −/+, deletion strain carrying complementing plasmid pCBD32; −/v, deletion strain carrying vector. Data are means and standard deviations from three independent experiments for each strain except YPIII, which was assayed six times.
