- Aardema BW, Lorenz MG, Krumbein WE (1983) Protection of scdiment-adsorbed transforming DNA against enzymatic inactivation. Appl Environ Microbiol 46:417–420
Google Scholar
- Bagdasarian M, Lurz R, Rückert B, Franklin FCH, Bagdasarian MM, Frey J, Timmis KN (1981) Specific-purpose plasmid cloning vectors. II. Broad host-range, high copy number, RSF1010-derived vectors, and a host-vector system for gene cloning in Pseudomonas. Gene 16:237–247
Google Scholar
- Bergmeyer HU (1955) Zur Messung von Katalase-Aktivitäten. Biochem Z 327:255–258
Google Scholar
- Bien M, Steffen H, Schulte-Frohlinde D (1988) Repair of the plasmid pBR322 damaged by gamma-irradiation or by restriction endonucleases using different recombination proficient E. coli strains. Mutat Res 194: 193–205
Google Scholar
- Birnboim HC, Doly J (1979) A rapid alkaline extraction procedure for screening recombinant plasmid DNA. Nucleic Acids Res 7: 1513–1523
Google Scholar
- Bolivar F, Rodrigues PJ, Greene PJ, Betlach MC, Heynecker HL, Boyer HW (1977) Construction and characterization of new cloning vehicles. II. A multipurpose cloning system. Gene 2: 95–113
Google Scholar
- Bron S, Venema G (1972) Ultraviolet inactivation and excisionrepair in Bacillus subtilis. I. Construction and characterization of a transformable eightfold auxotrophic strain and two ultraviolet-sensitive derivatives. Mutat Res 15: 1–10
Google Scholar
- Canosi C, Iglesias A, Trautner TA (1981) Plasmid transformation in Bacillus subtilis: effects of insertion of Bacillus subtilis DNA into plasmid pC194. Mol Gen Genet 181: 434–440
Google Scholar
- Catlin BW (1956) Extracellular deoxyribonucleic acid of bacteria and a deoxyribonuclease inhibitor. Science 124: 441–442
Google Scholar
- Crabb DW, Streips UN, Doyle RJ (1977) Selective enrichment for genetic markers in DNA released by competent cultures of Bacillus subtilis. Mol Gen Genet 155: 179–183
Google Scholar
- Cruze JA, Singer JT, Finnerty WR (1979) Conditions for quantitative transformation in Acinetobacter calcoaceticus. Curr Microbiol 3: 129–132
Google Scholar
- Davis RW, Botstein D, Roth JR (1980) Advanced bacterial genetics. Cold Spring Harbor Laboratory, Cold Spring Harbor, USA, p 201
Google Scholar
- DeFlaun MF, Paul JH, Feffrey WH (1987) Distribution and molecular weight of dissolved DNA in subtropical estuarine and oceanic environments. Mar Ecol Prog Ser 38: 65–73
Google Scholar
- Dower WJ, Miller JF, Ragsdale CW (1988) High efficiency transformation of E. coli by high voltage electroporation. Nucleic Acids Res 16: 6127–6145
Google Scholar
- Ehrlich SD (1978) DNA cloning in Bacillus subtilis. Proc Natl Acad Sci USA 75: 1433–1436
Google Scholar
- Graham JB, Istock CA (1978) Genetic exchange in Bacillus subtilis in soil. Mol Gen Genet 166: 287–290
Google Scholar
- Greaves MP, Wilson MJ (1969) The adsorption of nucleic acids by montmorillonite. Soil Biol Biochem 1: 317–323
Google Scholar
- Greaves MP, Wilson MJ (1970) The degradation of nucleic acids and montmorillonite-nucleic-acid complexes by soil microorganisms. Soil Biol Biochem 2: 257–268
Google Scholar
- Hanahan D (1983) Studies of transformation of E. coli with plasmids. J Mol Biol 166: 557–580
Google Scholar
- Hara T, Ueda S (1981) A study on the mechanism of DNA excretion from P. aeruginosa KYU-1 — effect of mitomycin C on extracellular DNA production. Agric Biol Chem 45: 2457–2461
Google Scholar
- Herdman M, Carr NG (1971) Recombination in Anacystis nidulans mediated by an extracellular DNA/RNA complex. J Gen Microbiol 68: XIV
Google Scholar
- Jeffrey WH, Paul JH, Stewart GJ (1990) Natural transformation of a marine Vibrio species by plasmid DNA. Microb Ecol 19: 259–268
Google Scholar
- Joenje H, Venema G (1975) Different nuclease activities in competent and noncompetent Bacillus subtilis. J Bacteriol 122: 25–33
Google Scholar
- Juni E, Janik E (1969) Transformation of Acinetobacter calcoaceticus (Bacterium anitratum). J Bacteriol 98: 281–288
Google Scholar
- Kammen HO, Wojnar RJ, Canellakis ES (1966) Transformation in Bacillus subtilis. II. The development and maintenance of the competent state. Biochim Biophys Acta 123: 56–65
Google Scholar
- Kooistra J, Vosman B, Venema G (1988) Cloning and characterization of a Bacillus subtilis transcription unit involved in ATP-dependent DNase synthesis. J Bacteriol 170: 4791–4797
Google Scholar
- Labarca CA, Paigen K (1980) A simple, rapid and sensitive DNA assay procedure. Anal Biochem 102: 344–352
Google Scholar
- Lorenz MG, Wackernagel W (1987) Adsorption of DNA to sand and variable degradation rates of adsorbed DNA. Appl Environ Microbiol 53: 2948–2952
Google Scholar
- Lorenz MG, Wackernagel W (1988) Impact of mineral surfaces on gene transfer by transformation in natural bacterial environments. In: Klingmüller W (ed) Risk assessment for deliberate releases. Springer, Berlin Heidelberg New York, pp 110–119
Google Scholar
- Lorenz MG, Wackernagel W (1990) Natural genetic transformation of Pseudomonas stutzeri by sand-adsorbed DNA. Arch Microbiol 154: 380–385
Google Scholar
- Lorenz MG, Wackernagel W (1991) High frequency of natural genetic transformation of Pseudomonas stutzeri in soil extract supplemented with a carbon/energy and phosphorus source. Appl Environ Microbiol 57: 1246–1251
Google Scholar
- Lorenz MG, Aardema BW, Krumbein WE (1981) Interaction of marine sediment with DNA and DNA availability to nucleases. Mar Biol 64: 225–230
Google Scholar
- Lorenz MG, Aardema BW, Wackernagel W (1988) Highly efficient genetic transformation of Bacillus subtilis attached to sand grains. J Gen Microbiol 134: 107–112
Google Scholar
- Maniatis T, Fritsch EF, Sambrook J (1982) Molecular cloning: a laboratory manual. Cold Spring Harbor Laboratory, Cold Spring Harbor, New York
Google Scholar
- Marmur J (1961) A procedure for the isolation of deoxyribonucleic acid from microorganisms. J Mol Biol 3: 208–218
Google Scholar
- Ogram A, Sayler GS, Barkay T (1987) The extraction and purification of microbial DNA from sediments. J Microbiol Methods 7: 57–66
Google Scholar
- Paul JH, Jeffrey WH, DeFlaun MF (1987) Dynamics of extracellular DNA in the marine environment. Appl Environ Microbiol 53: 170–179
Google Scholar
- Paul JH, Frischer ME, Thurmond JM (1991) Gene transfer in marine water column and sediment microcosms by natural plasmid transformation. Appl Environ Microbiol 57: 1509–1515
Google Scholar
- Romanowski G, Lorenz MG, Wackernagel W (1991) Adsorption of plasmid DNA to mineral surfaces and protection against DNaseI. Appl Environ Microbiol 57: 1057–1061
Google Scholar
- Saunders CW, Guild WR (1981) Pathway of plasmid transformation in pneumococcus: open circular and linear molecules are active. J Bacteriol 146: 517–526
Google Scholar
- Simon R, Priefer U, Pühler A (1983) A broad host range mobilization system for in vivo genetic engineering. Transposon mutagenesis in gram-negative bacteria. Biotechnol 1: 784–791
Google Scholar
- Sinha RP, Iyer VN (1971) Competence for genetic transformation and the release of DNA from Bacillus subtilis. Biochim Biophys Acta 232: 61–71
Google Scholar
- Spizizen J (1958) Transformation of biochemically deficient strains of Bacillus subtilis by deoxyribonucleate. Proc Natl Acad Sci USA 47: 505–512
Google Scholar
- Stewart GJ, Sinigalliano CD (1990) Detection of horizontal gene transfer by natural transformation in native and introduced species of bacteria in marine and synthetic sediments. Appl Environ Microbiol 56: 1818–1824
Google Scholar
- Venema G, Prichart RH, Venema-Schröder T (1965) Fate of transforming deoxyribonucleic acid in Bacillus subtilis. J Bacteriol 89: 1250–1255
Google Scholar