Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Articles (2)
- Biofilms (2)
- Biological Sciences Peer-Reviewed Articles (2)
- Environmental Health (2)
- Gram-negative bacteria (2)
-
- Growth & development (2)
- Physiology (2)
- Pseudomonas aeruginosa (2)
- 18S rRNA (1)
- <p>Water quality -- Ohio River.</p> <p>Bacteria -- Ecology.</p> <p>Drug resistance in microorganisms.</p> (1)
- ACT1 (1)
- ADH1 (1)
- ARNr 18S (1)
- Adenosine triphosphatases (1)
- Alphaproteobacteria (1)
- Animal Waste-Fueled (1)
- Animals (1)
- Aquatic Health Sciences Peer-Reviewed Articles (1)
- Bacteria (1)
- Bacterial (1)
- Bacterial Proteins (1)
- Bacterial infections (1)
- Bacteriological techniques (1)
- Biomass (1)
- Biosynthesis (1)
- Candida albicans (1)
- Chloride (1)
- Chlorohydrocarbons (1)
- Colony count (1)
- Comparative mRNA stability (1)
- Publication
-
- Dartmouth Scholarship (4)
- Karen Lloyd (3)
- VIMS Articles (3)
- ETSU Faculty Works (2)
- Frederick M. Cohan (2)
-
- Kenneth Nickerson Papers (2)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (1)
- Center for Urban Resilience Scholarship (1)
- Electronic Theses and Dissertations (1)
- Faculty Publications (1)
- Jan A.C. Vriezen Dr. (1)
- Microbiology Publications and Other Works (1)
- School of Natural Resources: Faculty Publications (1)
- Theses and Dissertations (1)
- Theses, Dissertations and Capstones (1)
- Publication Type
Articles 1 - 25 of 25
Full-Text Articles in Life Sciences
Vulnerability Of Pathogenic Biofilms To Micavibrio Aeruginosavorus, Daniel Kadouri, Nel C. Venzon, George A. O'Toole
Vulnerability Of Pathogenic Biofilms To Micavibrio Aeruginosavorus, Daniel Kadouri, Nel C. Venzon, George A. O'Toole
Dartmouth Scholarship
The host specificity of the gram-negative exoparasitic predatory bacterium Micavibrio aeruginosavorus was examined. M. aeruginosavorus preyed on Pseudomonas aeruginosa, as previously reported, as well as Burkholderia cepacia, Klebsiella pneumoniae, and numerous clinical isolates of these species. In a static assay, a reduction in biofilm biomass was observed as early as 3 hours after exposure to M. aeruginosavorus, and an ∼100-fold reduction in biofilm cell viability was detected following a a 24-h exposure to the predator. We observed that an initial titer of Micavibrio as low as 10 PFU/well or a time of exposure to the predator as short as 30 …
An Anaerobic Methane Oxidizing Community Of Anme-1b Archaea In Hypersaline Gulf Of Mexico Sediments, Karen Lloyd, Laura Lapham, Andreas Teske
An Anaerobic Methane Oxidizing Community Of Anme-1b Archaea In Hypersaline Gulf Of Mexico Sediments, Karen Lloyd, Laura Lapham, Andreas Teske
Microbiology Publications and Other Works
Sediments overlying a brine pool methane seep in the Gulf of Mexico (Green Canyon 205) were analyzed using molecular and geochemical approaches to identify geochemical controls on microbial community composition and stratification. 16S rRNA gene and rRNA clone libraries, as well as mcrA gene clone libraries, showed that the archaeal community consists predominantly of ANME-1b methane oxidizers; no archaea of other ANME subgroups were found with general and group-specific PCR primers. The ANME-1b community was found in the sulfate-methane interface, where undersaturated methane concentrations of ca. 100 to 250 _M coexist with sulfate concentrations around 10 mM. Clone libraries of …
An Anaerobic Methane Oxidizing Community Of Anme-1b Archaea In Hypersaline Gulf Of Mexico Sediments, Karen Lloyd, Laura Lapham, Andreas Teske
An Anaerobic Methane Oxidizing Community Of Anme-1b Archaea In Hypersaline Gulf Of Mexico Sediments, Karen Lloyd, Laura Lapham, Andreas Teske
Karen Lloyd
Sediments overlying a brine pool methane seep in the Gulf of Mexico (Green Canyon 205) were analyzed using molecular and geochemical approaches to identify geochemical controls on microbial community composition and stratification. 16S rRNA gene and rRNA clone libraries, as well as mcrA gene clone libraries, showed that the archaeal community consists predominantly of ANME-1b methane oxidizers; no archaea of other ANME subgroups were found with general and group-specific PCR primers. The ANME-1b community was found in the sulfate-methane interface, where undersaturated methane concentrations of ca. 100 to 250 _M coexist with sulfate concentrations around 10 mM. Clone libraries of …
Microbial Abundance, Composition And Enzymatic Activity During Decomposition Of Copepod Carcasses, Kw Tang, Kml Hutalle, Et Al
Microbial Abundance, Composition And Enzymatic Activity During Decomposition Of Copepod Carcasses, Kw Tang, Kml Hutalle, Et Al
VIMS Articles
Literature suggests that zooplankton carcasses are prevalent at times in both freshwater and marine environments, and could be important substrate sources for water column microbes (Dubovskaya et al. 2003, Hydrobiologia 504:223-227; Tang et al. 2006b, Estuar Coast Shelf Sci 68:499-508). We conducted laboratory experiments to investigate the decomposition of copepod carcasses by ambient microbes from Lake Dagow, Germany. Bacteria rapidly colonized and decomposed the carcasses, mainly from the inside. The ambient bacterial abundance increased 2-fold or more at the peak of decomposition, but decreased afterward, presumably due to protozoan grazing. Initial increase in ambient bacteria was faster at 20 degrees …
Saccharomyces Cerevisiae-Based Molecular Tool Kit For Manipulation Of Genes From Gram-Negative Bacteria, Robert M. Q. Shanks, Nicky C. Caiazza, Shannon M. Hinsa, Christine M. Toutain, George A. O'Toole
Saccharomyces Cerevisiae-Based Molecular Tool Kit For Manipulation Of Genes From Gram-Negative Bacteria, Robert M. Q. Shanks, Nicky C. Caiazza, Shannon M. Hinsa, Christine M. Toutain, George A. O'Toole
Dartmouth Scholarship
A tool kit of vectors was designed to manipulate and express genes from a wide range of gram-negative species by using in vivo recombination. Saccharomyces cerevisiae can use its native recombination proteins to combine several amplicons in a single transformation step with high efficiency. We show that this technology is particularly useful for vector design. Shuttle, suicide, and expression vectors useful in a diverse group of bacteria are described and utilized. This report describes the use of these vectors to mutate clpX and clpP of the opportunistic pathogen Pseudomonas aeruginosa and to explore their roles in biofilm formation and surface …
Distribution And Diversity Of Bacterial Chemolithotrophs In Marine And Freshwater Sediments, Lisa M. Nigro
Distribution And Diversity Of Bacterial Chemolithotrophs In Marine And Freshwater Sediments, Lisa M. Nigro
Electronic Theses and Dissertations
Bacterial chemolithotroph population structure has been investigated in Lowes Cove marine intertidal mudflat and Damariscotta Lake, Maine. A 492 to 495 fragment of the cbbL gene, coding for the large subunit of Form I ribulose-1,5- bisphosphate carboxylase/oxygenase (rubisco) was amplified from lake surface (upper 2 mm) sediments and mudflat surface (upper 2 mm), subsurface (5-7 cm), and Mya arenaria burrow wall sediments, as well as sulfide-oxidizing bacterial mat samples. Amplified DNA was used to construct cbbL clone libraries. Phylogenetic analysis showed that Damariscotta Lake cbbL clones were mainly of the 1C type, indicating a facultative carbon monoxide/hydrogen-oxidizing community. Conversely, clones …
Microbial Ecology Of An Animal Waste-Fueled Induced Blanket Reactor, Steven C. Curtis
Microbial Ecology Of An Animal Waste-Fueled Induced Blanket Reactor, Steven C. Curtis
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Use of an induced blanket reactor (IBR) to break down organic matter into methane is a financially attractive method to reduce the environmental impact of animal or industrial waste. In order to better understand the biological processes involved with the conversion of waste to biogas by an IBR, it is necessary to gain a better understanding of the microorganisms and their roles in the reactor. Molecular techniques based on the isolation of 16S rDNA were used in order to avoid the limitations posed by conventional culture-based techniques. Total DNA was extracted and amplified using universal primers specific to eubacteria and …
Farnesol Restores Wild-Type Colony Morphology To 96% Of Candida Albicans Colony Morphology Variants Recovered Following Treatment With Mutagens, Ellen C. Jensen, Jacob M. Hornby, Nicole E. Pagliaccetti, Chuleeon M. Wolter, Kenneth Nickerson, Audrey L. Atkin
Farnesol Restores Wild-Type Colony Morphology To 96% Of Candida Albicans Colony Morphology Variants Recovered Following Treatment With Mutagens, Ellen C. Jensen, Jacob M. Hornby, Nicole E. Pagliaccetti, Chuleeon M. Wolter, Kenneth Nickerson, Audrey L. Atkin
Kenneth Nickerson Papers
Candida albicans is a diploid fungus that undergoes a morphological transition between budding yeast, hyphal, and pseudohyphal forms. The morphological transition is strongly correlated with virulence and is regulated in part by quorum sensing. Candida albicans produces and secretes farnesol that regulates the yeast to mycelia morphological transition. Mutants that fail to synthesize or respond to farnesol could be locked in the filamentous mode. To test this hypothesis, a collection of C. albicans mutants were isolated that have altered colony morphologies indicative of the presence of hyphal cells under environmental conditions where C. albicans normally grows only as yeasts. All …
Bacteriophage Migration Via Nematode Vectors: Host-Parasite-Consumer Interactions In Laboratory Microcosms, John J. Dennehy, Nicholas A. Friedenberg, Yul W. Yang, Paul E. Turner
Bacteriophage Migration Via Nematode Vectors: Host-Parasite-Consumer Interactions In Laboratory Microcosms, John J. Dennehy, Nicholas A. Friedenberg, Yul W. Yang, Paul E. Turner
Dartmouth Scholarship
Pathogens vectored by nematodes pose serious agricultural, economic, and health threats; however, little is known of the ecological and evolutionary aspects of pathogen transmission by nematodes. Here we describe a novel model system with two trophic levels, bacteriophages and nematodes, each of which competes for bacteria. We demonstrate for the first time that nematodes are capable of transmitting phages between spatially distinct patches of bacteria. This model system has considerable advantages, including the ease of maintenance and manipulation at the laboratory bench, the ability to observe many generations in short periods, and the capacity to freeze evolved strains for later …
Conservation Of The Pho Regulon In Pseudomonas Fluorescens Pf0-1, Russell D. Monds, Peter D. Newell, Julia A. Schwartzman, George A. O'Toole
Conservation Of The Pho Regulon In Pseudomonas Fluorescens Pf0-1, Russell D. Monds, Peter D. Newell, Julia A. Schwartzman, George A. O'Toole
Dartmouth Scholarship
The Pho regulon integrates the sensing of environmental inorganic phosphate (Pi) availability with coregulation of gene expression, mediating an adaptive response to Pi limitation. Many aspects of the Pho regulon have been addressed in studies of Escherichia coli; however, it is unclear how transferable this knowledge is to other bacterial systems. Here, we report work to discern the conservation of the Pho regulon in Pseudomonas fluorescens Pf0-1. We demonstrate by mutational studies that PhoB/PhoR and the Pst system have conserved functions in the regulation of Pi-induced phosphatase activities, as well as expression of other Pi-regulated genes. A genetic screen was …
Analysis Of Bacterial Population And Distribution In The Developing Strata Of A Constructed Wetland Used For Chlorinated Ethene Bioremediation, Milton J. Clausen Jr.
Analysis Of Bacterial Population And Distribution In The Developing Strata Of A Constructed Wetland Used For Chlorinated Ethene Bioremediation, Milton J. Clausen Jr.
Theses and Dissertations
Chlorinated hydrocarbons and their degradation products are among of the most common organic groundwater contaminates in the United States. These compounds attack the central nervous system in animals and can affect the photosynthesis of plants. These compounds are also resistant to degradation in the environment and, because of this, pose a risk to any ecosystem in which they are present. This study identified the dominant microbial species in a constructed treatment wetland at Wright-Patterson AFB, Dayton, Ohio using 16S rRNA gene sequence analysis. Samples were taken from three different depths and during each of the four seasons. These samples were …
Molecular Assays For Detecting Aphanomyces Invadans In Ulcerative Mycotic Fish Lesions, Mw Vandersea, Rw Litaker, B Yonnish,, Et Al, H Kator, Et Al
Molecular Assays For Detecting Aphanomyces Invadans In Ulcerative Mycotic Fish Lesions, Mw Vandersea, Rw Litaker, B Yonnish,, Et Al, H Kator, Et Al
VIMS Articles
The pathogenic oomycete Aphanomyces invadans is the primary etiological agent in ulcerative mycosis, an ulcerative skin disease caused by a fungus-like agent of wild and cultured fish. We developed sensitive PCR and fluorescent peptide nucleic acid in situ hybridization (FISH) assays to detect A. invadans. Laboratory-challenged killifish (Fundulus heteroclitus) were first tested to optimize and validate the assays. Skin ulcers of Atlantic menhaden (Brevoortia tyrannus) from populations found in the Pamlico and Neuse River estuaries in North Carolina were then surveyed. Results from both assays indicated that all of the lesioned menhaden (n = 50) collected in September 2004 were …
Interactions Between Marine Snow And Heterotrophic Bacteria: Aggregate Formation And Microbial Dynamics, Hp Grossart, T Kiorboe, Kw Tang, Et Al
Interactions Between Marine Snow And Heterotrophic Bacteria: Aggregate Formation And Microbial Dynamics, Hp Grossart, T Kiorboe, Kw Tang, Et Al
VIMS Articles
Macroscopic aggregates (marine snow) contribute to new production and nutrient dynamics in the upper ocean and vertical fluxes of organic matter to the deep ocean. To test whether microorganisms play a significant role in phytoplankton aggregate formation we studied particle abundance and size as well as abundance, colonization behaviour, and community composition of bacteria during the growth of 2 marine diatoms (Thalassiosira weissflogii and Navicula sp.) under axenic and non-axenic conditions. Community composition of free-living and attached bacteria during phytoplankton growth and aggregation was studied by amplification of 16S rRNA gene fragments and denaturing gradient gel electrophoresis (DGGE). Our results …
Densities Of Fecal Indicator Bacteria In Tidal Waters Of The Ballona Wetlands, Los Angeles County, California, John H. Dorsey
Densities Of Fecal Indicator Bacteria In Tidal Waters Of The Ballona Wetlands, Los Angeles County, California, John H. Dorsey
Center for Urban Resilience Scholarship
Densities of fecal indicator bacteria (FIB) represented by total coliforms, E. coli and enterococci were measured within tidal channels of the Ballona Wetlands (Los Angeles County) to see if the wetlands act as a sink or source for these bacteria and to measure increases in FIB densities during wet weather. Samples were collected on 10 days over a 1-yr period beginning February 2003 at four sites within the wetlands and one site in Ballona Creek opposite the west tide gate. Incoming flood and outgoing ebb tides were sampled during each sampling event at each station. Water from Ballona Creek may …
Prevalence And Serovars Of Salmonella In The Feces Of Free-Ranging White-Tailed Deer (Odocoileus Virginianus) In Nebraska, David G. Renter, David P. Gnad, Jan M. Sargeant, Scott E. Hygnstrom
Prevalence And Serovars Of Salmonella In The Feces Of Free-Ranging White-Tailed Deer (Odocoileus Virginianus) In Nebraska, David G. Renter, David P. Gnad, Jan M. Sargeant, Scott E. Hygnstrom
School of Natural Resources: Faculty Publications
To determine the prevalence and serovars of Salmonella in free-ranging deer, we cultured feces from white-tailed deer (Odocoileus virginianus) harvested by hunters during a regular firearm season in southeastern Nebraska (USA). We recovered Salmonella from 5 (1%; 95% confidence interval: 0.37– 2.20%) of 500 samples and identified four different Salmonella enterica serovars [Litchfield (1), Dessau (1), Infantis (2), and Enteritidis (1)]. Although the prevalence of Salmonella in free-ranging deer appears to be low, the serovars recovered are known to be pathogenic to humans and animals.
Effects Of Feed Additives And Mixed Eimeria Species Infection On Intestinal Microbial Ecology Of Broilers, M. E. Hume, S. Clemente-Hernandez, E. O. Oviedo Rondon
Effects Of Feed Additives And Mixed Eimeria Species Infection On Intestinal Microbial Ecology Of Broilers, M. E. Hume, S. Clemente-Hernandez, E. O. Oviedo Rondon
Faculty Publications
Evaluation of digestive microbial ecology is necessary to understand effects of growth-promoting feed. In the current study, the dynamics of intestinal microbial communities (MC) were examined in broilers fed diets supplemented with a combination of antibiotic (bacitracin methylene disalicylate) and ionophore (Coban 60), and diets containing 1 of 2 essential oil (EO) blends, Crina Poultry (CP) and Crina Alternate (CA). Five treatments were analyzed: 1) unmedicated uninfected control; 2) unmedicated infected control; 3) feed additives monensin (bacitracin methylene disalicylate) + monensin (Coban 60; AI); 4) EO blend CP; and 5) EO blend CA. Additives were mixed into a basal feed …
Desiccation Responses And Survival Of Sinorhizobium Meliloti Usda 1021 In Relation To Growth Phase, Temperature, Chloride And Sulfate Availability, Jan A.C. Vriezen Dr., Frans J. Debruijn Dr., Klaus R. Nusslein Dr.
Desiccation Responses And Survival Of Sinorhizobium Meliloti Usda 1021 In Relation To Growth Phase, Temperature, Chloride And Sulfate Availability, Jan A.C. Vriezen Dr., Frans J. Debruijn Dr., Klaus R. Nusslein Dr.
Jan A.C. Vriezen Dr.
Aims: To identify physical and physiological conditions that affect the survival of Sinorhizobium meliloti USDA 1021 during desiccation. Methods and Results: An assay was developed to study desiccation response of S. meliloti USDA 1021 over a range of environmental conditions. We deter- mined the survival during desiccation in relation to (i) matrices and media, (ii) growth phase, (iii) temperature, and (iv) chloride and sulfate availability. Conclusions: This study indicates that survival of S. meliloti USDA 1021 during desiccation is enhanced: (i) when cells were dried in the stationary phase, (ii) with increasing drying temperature at an optimum of 37°C, and …
Survival And Growth Of Two Heterotrophic Hydrothermal Vent Archaea, Pyrococcus Strain Gb-D And Thermococcus Fumicolans, Under Low Ph And High Sulfide Concentrations In Combination With High Temperature And Pressure Regimes, Virginia P. Edgcomb, Stephen J. Molyneaux, Simone Böer, Carl O. Wirsen, Mark Saito, Michael S. Atkins, Karen Lloyd, Andreas Teske
Survival And Growth Of Two Heterotrophic Hydrothermal Vent Archaea, Pyrococcus Strain Gb-D And Thermococcus Fumicolans, Under Low Ph And High Sulfide Concentrations In Combination With High Temperature And Pressure Regimes, Virginia P. Edgcomb, Stephen J. Molyneaux, Simone Böer, Carl O. Wirsen, Mark Saito, Michael S. Atkins, Karen Lloyd, Andreas Teske
Karen Lloyd
Growth and survival of hyperthermophilic archaea in their extreme hydrothermal vent and subsurface environments are controlled by chemical and physical key parameters. This study examined the effects of elevated sulfide concentrations, temperature, and acidic pH on growth and survival of two hydrothermal vent archaea (Pyrococcus strain GB-D and Thermococcus fumicolans) under high temperature and pressure regimes. These two strains are members of the Thermococcales, a family of hyperthermophilic, heterotrophic, sulfur-reducing archaea that occur in high densities at vent sites. As actively growing cells, these two strains tolerated regimes of pH, pressure, and temperature that were in most cases not tolerated …
Heterotrophic Archaea Dominate Sedimentary Subsurface Ecosystems Off Peru, Jennifer F. Biddle, Julius S. Lipp, Karen Lloyd, Ketil B. Sørensen, Rika Anderson, Helen F. Fredericks, Marcus Elvert, Timothy J. Kelly, Daniel P. Schrag, Mitchell L. Sogin, Jean E. Brenchley, Andreas Teske, Christopher H. House, Kaw-Uwe Hinrichs
Heterotrophic Archaea Dominate Sedimentary Subsurface Ecosystems Off Peru, Jennifer F. Biddle, Julius S. Lipp, Karen Lloyd, Ketil B. Sørensen, Rika Anderson, Helen F. Fredericks, Marcus Elvert, Timothy J. Kelly, Daniel P. Schrag, Mitchell L. Sogin, Jean E. Brenchley, Andreas Teske, Christopher H. House, Kaw-Uwe Hinrichs
Karen Lloyd
Studies of deeply buried, sedimentary microbial communities and associated biogeochemical processes during Ocean Drilling Program Leg 201 showed elevated prokaryotic cell numbers in sediment layers where methane is consumed anaerobically at the expense of sulfate. Here, we show that extractable archaeal rRNA, selecting only for active community members in these ecosystems, is dominated by sequences of uncultivated Archaea affiliated with the Marine Benthic Group B and the Miscellaneous Crenarchaeotal Group, whereas known methanotrophic Archaea are not detectable. Carbon flow reconstructions based on stable isotopic compositions of whole archaeal cells, intact archaeal membrane lipids, and other sedimentary carbon pools indicate that …
Comparison Study Of Sediment Microbial Enzyme Activities To Biochemical Oxygen Demand, Nitrate Concentration, Phosphate Concentration In The Sediments Of A Fecally-Contaminated Stream In Northeast Tennessee Relative To Season And Land Use, Brian G. Evanshen, Kurt J. Maier, Phillip R. Scheuerman
Comparison Study Of Sediment Microbial Enzyme Activities To Biochemical Oxygen Demand, Nitrate Concentration, Phosphate Concentration In The Sediments Of A Fecally-Contaminated Stream In Northeast Tennessee Relative To Season And Land Use, Brian G. Evanshen, Kurt J. Maier, Phillip R. Scheuerman
ETSU Faculty Works
Microbial metabolism reacts quickly to environmental conditions. These reactions are dependent on the need for nutrients and respiration and can be measured using an assay of individual microbial enzyme activities (MEA’s). In this study, we measured MEA’s in the sediments of a stream in northeast Tennessee that had an approved fecal coliform Total Maximum Daily Load (TMDL). These values were compared to biochemical oxygen demand (BOD), phosphate concentration and nitrate concentration in the water column of this stream. Comparisons were grouped by season and land use. Stream sediments and water were collected monthly for one year and then quarterly for …
Antibiotic Resistant And Coliform Bacteria In The Ohio River; 2002 To 2004, Lisa Marie Smith
Antibiotic Resistant And Coliform Bacteria In The Ohio River; 2002 To 2004, Lisa Marie Smith
Theses, Dissertations and Capstones
During 2002 and 2003 samples, collected every five miles along the Ohio River, were analyzed for total cultivable bacteria, ciprofloxacin resistant bacteria, erythromycin resistant bacteria, tetracycline resistant bacteria, and fecal coliforms. During 2004 samples were analyzed for total cultivable bacteria, ciprofloxacin resistant bacteria, sulfamethizole resistant bacteria, tetracycline resistant bacteria, Virginiamycin resistant bacteria, total coliforms, and Escherichia coli. The objectives of this study were to systematically collect data on fecal coliforms, E. coli, and antibiotic resistant bacteria in the Ohio River and its major tributaries; to determine if antibiotic resistance populations are correlated to each other or to coliforms; and …
Determination Of Mrna Half-Lives In Candida Albicans Using Thiolutin As A Transcription Inhibitor, Bessie W. Kebaara, Lindsey E. Nielsen, Kenneth Nickerson, Audrey L. Atkin
Determination Of Mrna Half-Lives In Candida Albicans Using Thiolutin As A Transcription Inhibitor, Bessie W. Kebaara, Lindsey E. Nielsen, Kenneth Nickerson, Audrey L. Atkin
Kenneth Nickerson Papers
A method for determining mRNA half-lives in the polymorphic fungus Candida albicans is described. It employs growth in a defined medium, the inhibition of transcription with thiolutin (10–20 μg/mL), and quantitative Northern blotting. The method is effective for the A72, SC5314, and CAI-4 strains of C. albicans, and for mRNAs that have a wide variety of decay rates and steady-state abundances. The range of half-lives detected (from 4–168 min) shows that this method is effective for mRNAs with widely varying half-lives. The mRNA decay rates obtained are compared with those for orthologous mRNAs from Saccharomyces cerevisiae. This procedure …
Comparison Of Microbial Water Quality Parameters Of Four Geographically Similar Creeks In Northeast Tennessee, Kimberlee K. Hall, L. K. Gallagher, Brian G. Evanshen, Kurt J. Maier, Phillip R. Scheuerman
Comparison Of Microbial Water Quality Parameters Of Four Geographically Similar Creeks In Northeast Tennessee, Kimberlee K. Hall, L. K. Gallagher, Brian G. Evanshen, Kurt J. Maier, Phillip R. Scheuerman
ETSU Faculty Works
Four creeks within the Watauga River watershed in Northeast Tennessee are routinely monitored for water quality assessments. To identify sources and monitor remediation, Sinking Creek, Cash Hollow Creek, Buffalo Creek and Boones Creek are monitored for chemical and microbial parameters. These parameters include phosphates, nitrates, BOD and fecal coliforms. Sinking Creek is a tributary of the Watauga River with 10 miles of impaired water. Cash Hollow Creek enters the Watauga River at river mile 11.4 with 3.4 miles of impaired water. Boones Creek contains 18.6 impaired miles while the status of water quality in Buffalo Creek is not yet determined. …
Toward A Conceptual And Operational Union Of Bacterial Systematics, Ecology, And Evolution, Frederick M. Cohan
Toward A Conceptual And Operational Union Of Bacterial Systematics, Ecology, And Evolution, Frederick M. Cohan
Frederick M. Cohan
No abstract provided.
Cyanobacterial Ecotypes In The Microbial Mat Community Of Mushroom Spring (Yellowstone National Park, Wyoming) As Species-Like Units Linking Microbial Community Composition, Structure And Function, D. M. Ward, M. M. Bateson, M. J. Ferris, M. Kuhl, A. Wieland, A. Koeppel, Frederick M. Cohan
Cyanobacterial Ecotypes In The Microbial Mat Community Of Mushroom Spring (Yellowstone National Park, Wyoming) As Species-Like Units Linking Microbial Community Composition, Structure And Function, D. M. Ward, M. M. Bateson, M. J. Ferris, M. Kuhl, A. Wieland, A. Koeppel, Frederick M. Cohan
Frederick M. Cohan
No abstract provided.