title: Protection of sediment-adsorbed transforming DNA against enzymatic inactivation.
abstract: The action of DNase I on transforming DNA, both adsorbed to marine sediment and in solution, was investigated. DNase I reduced the transformation frequencies of free DNA more than of adsorbed DNA. Changes in salt concentration or pH did not have a significant influence on the DNA-sediment complex. Soil components other than organic materials and clay minerals can bind DNA and retard its enzymatic degradation.
authors.affiliation: Geomicrobiology Division, University of Oldenburg, D-2900 Oldenburg, West Germany.
authors.forename: B W
authors.initials: BW
authors.lastname: Aardema
authors.forename: M G
authors.initials: MG
authors.lastname: Lorenz
authors.forename: W E
authors.initials: WE
authors.lastname: Krumbein