. "Heckmann & Schmidt, 1987" . . _:b75874489 . . "Polynucleobacter necessarius" . "Polynucleobacter necessarius Heckmann & Schmidt, 1987" . . . "Polynucleobacter necessarius" . "Polynucleobacter necessarius" . _:b75874489 "9155374" . . _:b75874489 . _:b75874489 "GBIF id" . "9155374" . . _:b75874489 . "977500" . .