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Home > All Images > 2002 > September > 2 Sep 2002

Images Dated 2nd September 2002

Choose from 11 pictures in our Images Dated 2nd September 2002 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Microcystis blue-green alga Featured 2 Sep 2002 Image

Microcystis blue-green alga

Blue-green algae. Coloured transmission electron micrograph of a single cell of the blue-green algae Microcystis aeruginosa (also known as Anacystis cyanea). Blue-green algae (cyanobacteria) are primitive algae; in structure they are related to bacteria. They are prokaryotes containing no membrane-bound nucleus; instead, as in bacteria, nuclear material is dispersed throughout the cell. Photosynthetic lamellae (thread-like structures, outer part of cell) are the primitive chloroplasts. M.aeruginosa cells are found in colonies; they bloom in late summer and may liberate a toxin that kills plankton, fish and birds. Magnification: x16, 320 at 6x6cm size

© A.B. DOWSETT/SCIENCE PHOTO LIBRARY