| bacterial and archaeal populations associated with freshwater ferromanganous micronodules and sediments. | biology is believed to play a large role in the cycling of iron and manganese in many freshwater environments, but specific microbial groups indigenous to these systems have not been well characterized. to investigate the populations of bacteria and archaea associated with metal-rich sediments from green bay, wi, we extracted nucleic acids and analysed the phylogenetic relationships of cloned 16s rrna genes. because nucleic acids have not been routinely extracted from metal-rich samples, we inve ... | 2001 | 11225719 |