||Bacteria Candidatus Ovobacter propellens
||Fenchel T, Thar R. "Candidatus Ovobacter propellens": a large conspicuous prokaryote with an unusual motility behaviour. FEMS Microbiol Ecol. 2004 May 1 48(2):231-8. doi: 10.1016/j.femsec.2004.01.013. p.233 left column bottom paragraphPubMed ID19712406
||"Cells were observed living or fixed in OsO4 vapours using Nomarski Interference microscopy. For electron
microscopy cells were fixed in 1% OsO4
and 5% glutaraldehyde in filtered (0.2µm) seawater in centrifuge
glasses for about 15 min."
||"The mean distance between adjacent flagella was
about 0.1µm corresponding to 100 flagella/µm^2.
Since the area of the flagellar field was about 4µm^2,
the total number of flagella can be estimated to be
around 400. The flagella had a diameter of about 15
nm and so the volume fraction of flagella in the tuft
was only about 2%, the remaining bulk of the tuft
consists only of water surrounding the flagella."