Morphologic Expression of the Interactions of Human Lymphocytes and Pseudomonas aeruginosa as Observed by Scanning Electron Microscopy

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Abstract
When human lymphocytes and Pseudomonas aeruginosa were incubated together and then observed under the scanning electron microscope, four distinct morphologic observations were made: (1) filopods extending between lymphocytes and bacteria; (2) globular structures bulging out in many of the filopods; (3) filopods connecting lymphocytes to each other in the presence of bacteria; and (4) bacteria adhering to the lymphocytes in areas where decreased numbers of microvilli were present.