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September Gallery

Choose from 1,208 pictures in our September collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

September Featured September Print



1968, Apollo 8, Apollo Program, Astronomy, Earth, Earthrise, Landings, Manned Spaceflight, Mono Chrome, Moon, Programme, Rise, Rising, Space, Space Flight, Space Race

Microcystis blue-green alga Featured September Print

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