legionella jamestowniensis legionella jamestowniensis legionella jamestowniensis is a gram-negative bacterium from the genus legionella which was isolated from wet soil in jamestown, new york. genomic informationncbi genome id42081ploidyhaploidgenome size3.37 mbnumber of chromosomes1year of completion2015 legionella jamestowniensis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: legionellales family: legionellaceae genus: legionella species: l. jamestowniensis binomial name legionella jamestowniensisbrenner et al. 1985 type strain atcc 35298, ccug 29669, cip 103845, dsm 19215, gifu 10741, ja-26-g1-e2, ja-26-gi-e2, jcm 7590, nctc 11981