Light micrograph of Anabaena sp., a member of the Cyanophyta division - the blue-green algae, showing the arrangement of single cells into filaments.
RMID:Image ID:2ACXT1E
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Science Photo Library / Alamy Stock PhotoImage ID:
2ACXT1EFile size:
50.5 MB (1.8 MB Compressed download)Releases:
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4909 x 3593 px | 41.6 x 30.4 cm | 16.4 x 12 inches | 300dpiDate taken:
2 September 2014Photographer:
CLOUDS HILL IMAGING LTD/SCIENCE PHOTO LIBRARYMore information:
Light micrograph of Anabaena sp., a member of the Cyanophyta division - the blue-green algae, showing the arrangement of single cells into filaments. A single row of cells is termed a trichome; a trichome surrounded by its gelatinous sheath is known as a filament. Anabaena sp. has the ability to fix atmospheric nitrogen, a feature associated with heterocysts; large, thick-walled, empty cells which divide a filament and thus provide a means of vegetative reproduction. They can form algal blooms, and produce neurotoxins which can cause illness.