Research Topics
| Alan W DechoSummaryAffiliation: University of South Carolina Country: USA Publications
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Detail Information
Publications
Quorum sensing in natural environments: emerging views from microbial matsAlan W Decho
The Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Trends Microbiol 18:73-80. 2010..As a model system to discuss these points we use microbial mats - highly-structured biofilm communities living under sharply-defined, fluctuating geochemical gradients...
Isolation and biochemical characterization of extracellular polymeric secretions (EPS) from modern soft marine stromatolites (Bahamas) and its inhibitory effect on CaCO3 precipitationTomohiro Kawaguchi
Department of Environmental Health Sciences, School of Public Health, University of South Carolina, Columbia 29208, USA
Prep Biochem Biotechnol 32:51-63. 2002..indicated that both uronic acids and protein fractions may be involved in the inhibition of CaCO3 precipitation...- Development of an indirect competitive enzyme-linked immunosorbent assay to detect extracellular polymeric substances (EPS) secreted by the marine stromatolite-forming cyanobacteria, Schizothrix spTomohiro Kawaguchi
Department of Environmental Health Sciences, The Norman J Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, USA
J Immunoassay Immunochem 24:29-39. 2003..30 to 12.8%, respectively, for standards between 2 and 1000 ng/mL. Also, the seawater matrix effect was negligible. Our results indicated that this assay is a useful tool for quantification of Schizothrix sp. EPS in a range of ng/mL... - Bioavailability of the organophosphorous insecticide chlorpyrifos to the suspension-feeding bivalve, Mercenaria mercenaria, following exposure to dissolved and particulate matterAdriana C Bejarano
Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina 29208, USA
Environ Toxicol Chem 22:2100-5. 2003..The high selectivity and digestibility of algae particles by M. mercenaria, a potentially ingested food source, may play an important role in the bioavailability of chlorpyrifos in this animal... - Using geographical information techniques to quantify the spatial structure of endolithic boring processes within sediment grains of marine stromatolitesAlexandru I Petrisor
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
J Microbiol Methods 56:173-80. 2004..This allowed quantification of the areas of ooid grains that were microbored. Based on our results, we suggest that our method could be widely applicable to sedimentary environments, and other areas of fundamental research... - The role of various dissolved organic matter forms on chlorpyrifos bioavailability to the estuarine bivalve Mercenaria mercenariaAdriana C Bejarano
Department of Environmental Health Sciences, Norman J Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Mar Environ Res 60:111-30. 2005..Interestingly, at the tested organic carbon concentrations CD-alpha and CD-beta did not reduce (14)C-CHPY bioconcentration in M. mercenaria... 
Rapid screening of quorum-sensing signal N-acyl homoserine lactones by an in vitro cell-free assayTomohiro Kawaguchi
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Appl Environ Microbiol 74:3667-71. 2008..Finally, the present protocol may be adapted for use with other biosensor strains and be used in high-throughput AHL screening of bacteria or metagenomic libraries...- Transfer of gold nanoparticles from the water column to the estuarine food webJohn L Ferry
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Nat Nanotechnol 4:441-4. 2009..4%. Clams and biofilms accumulated the most nanoparticles on a per mass basis, suggesting that gold nanorods can readily pass from the water column to the marine food web... - Application of photostable quantum dots for indirect immunofluorescent detection of specific bacterial serotypes on small marine animalsAlan W Decho
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Nanotechnology 19:235102. 2008.... - Surface-functionalization effects on uptake of fluorescent polystyrene nanoparticles by model biofilmsBrian A Nevius
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Ecotoxicology 21:2205-13. 2012..The results of this study support an emerging precedent that biofilms may be an effective player in the binding and sequestration of nanoparticles in aqueous systems... - Autoinducers extracted from microbial mats reveal a surprising diversity of N-acylhomoserine lactones (AHLs) and abundance changes that may relate to diel pHAlan W Decho
Department of Environmental Health Sciences, Arnold School of Public Health, Columbia, SC, USA
Environ Microbiol 11:409-20. 2009.... - Reaction of N-acylhomoserine lactones with hydroxyl radicals: rates, products, and effects on signaling activityRebecca L Frey
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Environ Sci Technol 44:7465-9. 2010..This result suggested that the application of HO• based technologies such as advanced oxidation processes for biofilm control may result in unintended quorum sensing responses by microbial communities... - Extraction of high molecular weight DNA from microbial matsBenjamin S Bey
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Biotechniques 49:631-40. 2010..Our results show the importance of validating the DNA extraction methods used in metagenomic studies to ensure optimal recovery of microbial richness... - Development of a microplate-based fluorescence immunoassay using quantum dot streptavidin conjugates for enumeration of putative marine bacteria, Alteromonas sp., associated with a benthic harpacticoid copepodErin M Beckman
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
J Microbiol Methods 75:441-4. 2008.... - Surface-enhanced Raman spectroscopy for in situ measurements of signaling molecules (autoinducers) relevant to bacteria quorum sensingWilliam F Pearman
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Appl Spectrosc 61:1295-300. 2007..This new capability offers the possibility to "listen in" on chemical communications between bacteria in their natural environment as that environment is stressed... - Reconstruction and computation of microscale biovolumes using geographical information systems: potential difficultiesAlexandru I Petrisor
Department of Environmental Health Sciences, N J Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
Res Microbiol 155:447-54. 2004..Also, the image classification process encountered several limitations. It is suggested that the unique constraints of the microscopic world may generate additional problems, especially related to image classification...