Specification of Gradients used for Studies of Chemotaxis

  title={Specification of Gradients used for Studies of Chemotaxis},
  author={ROBERT P. Futrelle and H. Berg},
  • ROBERT P. Futrelle, H. Berg
  • Published 1972
  • Chemistry, Medicine
  • Nature
  • THE responses of motile bacteria to various chemicals were studied in the 1880s by Pfeffer1, who inserted a capillary tube containing a solution of an attractant into a suspension of bacteria and noted that the bacteria accumulated first near the mouth of the capillary and then inside. The assay has been developed further by Adler2,3, who measured the number of bacteria which enter the capillary in a fixed period of time. With the advent of the tracking microscope4 it has been possible to… CONTINUE READING
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