coccoid

Most bacteria are spherical or sausage shaped, and have one dimension no wider than about 1 micron (microns). Except for some peculiar species, most bacteria cannot be identified by light microscopy alone - although a navigation through the adaptive groups will reveal considerable variation in shape, size, colour etc. These two species indicate the least complex looking cells. Coccoid bacteria may be attached, floating or swimming.  This picture was taken by David Patterson, Linda Amaral Zettler and Virginia Edgcomb of materials from sediments of the marine site, Eel Pond in Austumn 2000, spring and summer 2001. Image copyright: D. J. Patterson, L. Amaral-Zettler and V. Edgcomb, image used under license to MBL (micro*scope).

Bacteria

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Bacteria in other collections

Bacteria, from Microbes of Alkaline Lake	Bacteria, from Microbes of Alkaline Lake	Bacteria, from Microbes of Alkaline Lake	Spiral bacteria, from Microbes of Alkaline Lake	bacteria, from Microbes of Benton Road Crossing (Sierras)
Symbiotic bacteria, from Microbes of Beauchamp hot springs	Filamentous bacteria, from Microbes of Beauchamp hot springs	Bacterial behaviour, from Microbes in Black Lake	Red sulfur bacteria, from Microbes of Mono Lake	Bacteria, from Microbes of Mono Lake
Bacteria, from Microbes of Mono Lake	Bacterial behaviour, from Microbes of Mono Lake	Spiral bacteria, from Microbes of Mono Lake	Bacteria, from Microbes of Mono Lake	bacteria, from Microbes of Mono Lake
bacteria, from Microbes of Mono Lake	bacteria, from Microbes of Mono Lake	filamentous bacteria, from Microbes of Convict Lake	Bacteria, from Microbes of Convict Lake	filamentous bacteria, from Microbes of Convict Lake
Bacteria, from Microbes of Mammoth Lake	red sulphur bacteria, from Microbes of Mammoth Lake	Bacteria, from Planktonic bacteria	Bacteria, from Planktonic bacteria	Bacteriastrum sp., from ATOL protistology workshop 2005
Bacteriastrum, from ATOL protistology workshop 2005	Bacteriastrum, from ATOL protistology workshop 2005	Cyanobacteria, from SML Crystal Lake	Bacteria, from Little Sippewissett salt marsh, Massachusetts, USA	Bacteriastrum hyalinum, from Alfred Wegener Institute Phytoplankton
Mat bacteria, from Mats at Yellowstone	Iron bacteria, from Eubacteria in Yellowstone	Cyanobacteria, from Eubacteria in Yellowstone	Cyanobacteria, from Eubacteria in Yellowstone	Sulfur bacteria, from Eubacteria in Yellowstone
Rumen bacteria, from Eubacteria in Yellowstone	Cyanobacterial mat, from West Thumb Geyser Basin in Yellowstone National Park	Cyanobacterial mat, from West Thumb Geyser Basin in Yellowstone National Park	Cyanobacteria, from Marine microbes - NW Australia	Cyanobacteria, from Marine microbes - NW Australia
Purple sulfur bacteria, from Mammoth Hot Springs to Beaver Lake Area in Yellowstone National Park	Cyanobacterial mat, from Mammoth Hot Springs to Beaver Lake Area in Yellowstone National Park	Bacteria, from Athens, Georgia, USA	Cyanobacteria, from Lamont Pond, freshwater, New York	cyanobacteria, from Provasoli-Guillard National Center for Culture of Marine Phytoplankton (CCMP)
Bacteria, from Audley Bottom	cyanobacteria, from Lake Toolik, Arctic Alaska	Bacteria, from Davis Mine, USA	Bacteria, from Little Sippewissett salt marsh, Massachusetts, USA	Bacteria, from Little Sippewissett salt marsh, Massachusetts, USA
cyanobacteria, from Lake Toolik, Arctic Alaska	Bacteria, from Plum Island, Massachusetts coast, USA	cyanobacteria, from Lake Toolik, Arctic Alaska	Bacteria, from American Type Culture Collection	Unidentified bacteria, from American Type Culture Collection
Cyanobacteria, from Yellowstone National Park (Wyoming, USA)	bacteria, from Athens, Georgia, USA	Bacteria, from Lamont Pond, freshwater, New York	Bacteria, from Pitcher Plants, Florida, USA	Bacteria, from Lamont Pond, freshwater, New York
Bacteriastrum delicatulum, from Phytoplankton of the Irish Sea	Bacteria, from Little Sippewissett salt marsh, Massachusetts, USA	Bacteria, from Little Sippewissett salt marsh, Massachusetts, USA	Bacteria, from Kalotermes	Unidentified bacteria, from American Type Culture Collection
Unidentified bacteria, from Yellowstone National Park (Wyoming, USA)	Unidentified bacteria, from Yellowstone National Park (Wyoming, USA)	Unidentified bacteria, from American Type Culture Collection