| amaricoccus gen. nov., a gram-negative coccus occurring in regular packages or tetrads, isolated from activated sludge biomass, and descriptions of amaricoccus veronensis sp. nov., amaricoccus tamworthensis sp. nov., amaricoccus macauensis sp. nov., and amaricoccus kaplicensis sp. nov. | three isolates of gram-negative bacteria, strains ben 102t, ben 103t, and ben 104t, were obtained in pure culture by micromanipulation from activated sludge biomass from wastewater treatment plants in italy, australia, and macau, respectively. these isolates all had a distinctive morphology; the cells were cocci that usually were arranged in tetrads. based on this criterion, they resembled other bacteria from activated sludge previously called "g" bacteria. on the basis of phenotypic characteris ... | 1997 | 9226904 |