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. 2005 Mar 21;33(5):1690–1698. doi: 10.1093/nar/gki297

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© The Author 2005. Published by Oxford University Press. All rights reserved

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Effect of chemotactic attractants on the swarming of S.Choleraesuis SC-B67 and S.Typhimurium LT2 by using tryptone swarm tubes. (A) Swarm distance for S.Choleraesuis SC-B67 and S.Typhimurium LT2 over the time. Control indicates no addition of chemotactic attractants at the bottom of the tube. Each point represents mean ± SD. (B) The swarm rate in the presence of chemotactic attractants of each strain. S.Typhimurium LT2 swarm rate was significantly higher (*P < 0.05 by Student's t-test) in the presence of glucose (with or without PQQ). This situation was not observed in S.Choleraesuis SC-B67.