A novel strain belonging to the family Planctomycetaceae , designated V22 T , was isolated from sediment of a seawater fish tank in Braunschweig, Germany. The isolate forms pink colonies on solid medium and displays common characteristics of planctomycetal strains, such as division by budding, formation of rosettes, a condensed nucleoid and presence of crateriform structures and fimbriae. Unusual invaginations of the cytoplasm...

Summary S ulfurospirillum multivorans , a free‐living ε‐proteobacterium, is among the best studied organisms capable of organohalide respiration. It is able to use several halogenated ethenes as terminal electron acceptor. In this report, the complete genome sequence of S . multivorans including a comparison with genome sequences of two related non‐dehalogenating species, S ulfurospirillum deleyianum and S ulfurospirillum barn...

Summary Corrinoid‐dependent reductive dehalogenation is mediated by phylogenetically diverse anaerobic bacteria that either synthesize corrinoids de novo or are dependent on corrinoid salvaging from the environment. The tetrachloroethene ( PCE ) reductive dehalogenase ( PceA ) of the G ram‐negative E psilonproteobacterium S ulfurospirillum multivorans harbours a norpseudo‐ B 12 as corrinoid cofactor. Norpseudo‐ B 12 differs fr...