175 – 292 hours
||Bacteria Buchnera aphidicola
||Gibson B, Wilson DJ, Feil E, Eyre-Walker A. The distribution of bacterial doubling times in the wild. Proc Biol Sci. 2018 Jun 13 285(1880). pii: 20180789. doi: 10.1098/rspb.2018.0789 p.6 left column 4th paragraphPubMed ID29899074
|| Ochman H, Elwyn S, Moran NA. Calibrating bacterial evolution. Proc Natl Acad Sci U S A. 1999 Oct 26 96(22):12638-43  Clark MA, Moran NA, Baumann P. Sequence evolution in bacterial endosymbionts having extreme base compositions. Mol Biol Evol. 1999 Nov16(11):1586-98 DOI: 10.1093/oxfordjournals.molbev.a026071PubMed ID10535975, 10555290
||P.6 left column 4th paragraph: "There is also independent evidence that there are some bacteria that divide slowly in their natural environment. The aphid symbiont Buchnera aphidicola is estimated to double every 175–292 h in its host [primary sources], and Mycobacterium leprae doubles every 300–600 h on mouse footpads [BNID 115547], not its natural environment, but one that is probably similar to the human skin."