Abstract：
:DNA, as the signature of life, has been extensively studied in a wide range of environments. While DNA analysis has become central to work on natural gene exchange, forensic analyses, soil bioremediation, genetically modified organisms, exobiology, and palaeontology, fundamental questions about DNA resistance to degradation remain. This paper investigated on the presence of plant DNA in groundwater and artesian fountain (groundwater-fed) samples, which relates to the movement and persistence of DNA in the environment. The study was performed in the groundwater and in the fountains, which are considered as a traditional artesian drinking water in Geneva Champagne Basin. DNA from water samples was extracted, analysed and quantified. Plant gene sequences were detected using PCR amplification based on 18S rRNA gene primers specific for eukaryotes. Physicochemical parameters of water samples including temperature, pH, conductivity, organic matter, dissolved organic carbon (DOC) and total organic carbon (TOC) were measured throughout the study. The results revealed that important quantities of plant DNA can be found in the groundwater. PCR amplification based on 18S rDNA, cloning, RFLP analysis and sequencing demonstrated the presence of plant DNA including Vitis rupestris, Vitis berlandieri, Polygonum sp. Soltis, Boopis graminea, and Sinapis alba in the water samples. Our observations support the notion of plant DNA release, long-term persistence and movement in the unsaturated medium as well as in groundwater aquifers.
journal_name
Chemospherejournal_title
Chemosphereauthors
Poté J,Mavingui P,Navarro E,Rosselli W,Wildi W,Simonet P,Vogel TMdoi
10.1016/j.chemosphere.2008.12.048subject
Has Abstractpub_date
2009-04-01 00:00:00pages
498-504issue
4eissn
0045-6535issn
1879-1298pii
S0045-6535(08)01567-1journal_volume
75pub_type
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