Table 1 |.

Cryo-electron tomography of intact bacterial cells

Cell type	Main features identified	Microscope location	Year	Refs
Archaea
Pyrobaculum aerophilum, Sulfolobus spp	S-layer	Martinsried, Germany	1998	24
Pyrodictium cannulae	Cannulae, vesicles	Martinsried, Germany	2003	33,39
ARMAN	Tubular internal structures	Berkeley, USA	2008	23
Nanoarchaeum equitans	Cytoplasmic fibres	Martinsried, Germany	2008	29
Gram-negative bacteria (rod-shaped)
Bdellovibrio bacteriovorus	Nucleoid, cytoplasmic filaments	NCI/NIH, USA	2008	20
Caulobacter crescentus	Cytoplasmic filaments, chemotaxis receptors, dense granules	Caltech, (USA; NCI/NIH, USA; Berkeley, USA	2006–2008	21,45, 42,46
Escherichia coli	Chemotaxis receptors	NCI/NIH, USA	2007, 2008	35,87
Flavobacterium johnsoniae	Surface filaments	NCI/NIH, USA	2007	32
Rhodopseudomonas viridis	Photosynthetic membranes	Weizmann, Israel	2008	31
Magnetospirillum magneticum and Magnetospirillum gryphiswaldense (magnetotactic bacteria)	Magnetosomes	Caltech, USA; Martinsried, Germany	2006	30,43
Gram-negative bacteria (spirochetes)
Spiroplasma melliferum	Cytoplasmic filaments, ribosome distribution	Martinsried, Germany	2005, 2006	37,86
Treponema primitia	Flagellar motor, cell surface components	Caltech, USA	2006, 2008	28,38
Treponema denticola	Periplasmic and cytoplasmic filaments	Albany, USA	2008	27
Borrelia burgdorferi	Periplasmic filaments	Albany, USA	2008	22
Miscellaneous
Prochlorococcus spp (cyanobacterium)	Photosynthetic lamellae	Albany, USA	2007	34
Mycobacterium bovis bacille Calmette-Guérin and Mycobacterium smegmatis	Membrane bilayer structure	Martinsried, Germany	2008	26
Mycoplasma pneumoniae	Attachment organelle	Heidelberg, Germany; Caltech, USA	2006	25,41

ARMAN, archaeal Richmond Mine acidophilic nanoorganisms; NCI, National Cancer Institute; NIH, National Institutes of Health.