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Updated: Aug 2, 2026

Synthesis and Assay of Vibrio Quorum Sensing Inhibitors
Published on: May 31, 2024
Identification of Thiothrix unzii in two distinct ecosystems
R L Brigmon1, M Furlong, W B Whitman
1Environmental Biotechnology Section, Savannah River Technology Center, Westinghouse Savannah River Company, Aiken, SC 29808, USA. r03.brigmon@srs.gov
Aims:
Molecular procedures were used to identify Thiothrix spp. in biofilms from sulphide-rich waters in two distinct ecosystems.
Methods And Results:
Biofilm samples were obtained from two groundwater-fed systems in central and northern Florida, including an artesian spring and municipal water tank. The 16S rDNA in each sample was directly amplified by polymerase chain reaction.
Conclusions:
Clonal libraries of biofilm 16S rDNA from each site contained rDNA sequences that were 99-99.5% similar to Thiothrix unzii.
Significance And Impact Of The Study:
This is the first report of T. unzii in a natural system. Biofilm formation by Thiothrix spp. can cause fouling in groundwater processing equipment, including municipal water-processing facilities, agricultural irrigation systems and spring water bottling plant filters. Biofouling can have severe economic and human health impacts as it will influence flow rates and related water treatments. Characterization of specific fouling bacteria and their molecular ecology is essential for their regulation.
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