ROBERT MARKUS / SCIENCE PHOTO LIBRARY ROBERT MARKUS / SCIENCE PHOTO LIBRARY
Fluorescence light micrograph of lamellocytes from a fruit fly (Drosophila melanogaster). Lamellocytes are a cell of the fruit fly's immune system. The presence of a large pathogen such as a parasitoid wasp egg in the fruit fly's haemocoel activates lamellocytes and they encapsulate the pathogen. Plasmatocytes measure between 20 to 30 micrometres across.
Model release not required. Property release not required.