≤900 cells per chain
||Nanoflagellate Ochromonas spp.
||Young KD. The selective value of bacterial shape. Microbiol Mol Biol Rev. 2006 Sep70(3):660-703 DOI: 10.1128/MMBR.00001-06 p.685 right column 2nd paragraphPubMed ID16959965
|| Hahn MW, Höfle MG. Flagellate predation on a bacterial model community: interplay of size-selective grazing, specific bacterial cell size, and bacterial community composition. Appl Environ Microbiol. 1999 Nov65(11):4863-72PubMed ID10543797
||Primary source  abstract: "Before and after the introduction of the predator, the bacterial community composition was studied by in situ techniques (immunofluorescence microscopy and fluorescent in situ hybridization), as well as by cultivation on agar media. The cell sizes of nonspecifically stained and immunofluorescently labeled bacteria were measured by image analysis."
||P.685 right column 2nd paragraph: "Finally, cell filaments up to 14 μm long can be grazed by the mixotrophic nanoflagellate Ochromonas (BNID 115656, primary source, refs 259, 375), but at only one-half to one-fourth the rate of shorter cells (ref 375). Bacteria that survive Ochromonas predation are small, filamentous, or stellate chains of up to 900 rod-shaped cells (primary source). Once again, the changes are not permanent: the bacterial population returns to its original size distribution when the predator is removed (primary source)."