pontibacter populi pontibacter populi pontibacter populi is a gram-negative, rod-shaped and non-motile bacterium from the genus of pontibacter which has been isolated from soil from a populus euphratica forest in xinjiang in china. pontibacter populi scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: hymenobacteraceae genus: pontibacter species: p. populi binomial name pontibacter populixu et al. 2012 type strain cctcc ab 206239, nrrl b-59488, hyl7-15