Index Catalog // ScholarsArchive@OSU

Some physiological bases for survival of a marine bacterium during nutrient starvation

Creator:: Kurath, Gael
Abstract:: The physiological responses of populations of a marine Pseudomonas sp. to nutrient starvation were observed for a period of 40 days. During the first 25 days of starvation the viability of the population decreased by 99.9 percent, but thereafter the cultures maintained approximately 5 x 10⁵ viable cells per ml...
Resource Type:: Masters Thesis
Full Text:: suspension according to the method of Holm-Hansen and Booth (1966) for marine bacteria. Extracts were

Phylogenetic characterization of the epibiotic bacteria associated with the hydrothermal vent polychaete Alvinella pompejana

Creator:: Haddad, Michael Alexander
Abstract:: Symbiotic relationships of bacteria with higher organisms are commonly observed in nature; however, the functional role of these relationships is only rarely understood. This is particularly evident in epibiotic bacterial associations in the marine environment where the bacteria are often a diverse ensemble of microorganisms, thus complicating the identification of...
Resource Type:: Masters Thesis
Full Text:: the marine environment where the bacteria are often a diverse ensemble of microorganisms, thus

Effect of high pressure processing on the survival of Vibrio parahaemolyticus strains in pure culture and Pacific oysters

Creator:: Calik, Hakan
Abstract:: Different strains of Vibrio parahaemolyticus (Vp) in broth cultures and Vp-inoculated live Pacific oysters (Crassostrea gigas) were subjected to high pressure processing (HPP) at 241, 276, 310, and 345 MPa. Results showed Vp numbers were reduced by HPP in both pure culture and whole oysters. Vp inactivation was dependent on...
Resource Type:: Masters Thesis
Full Text:: , rod-shaped bacteria naturally present in marine water with an extremely short generation time

Bacterioplankton diversity in the lower ocean mixed layer

Creator:: Wright, Terah Diana
Resource Type:: Masters Thesis
Full Text:: of bacteria with a wide variety of metabolic capabilities are known to live in marine habitats

Disturbances in a marine bacterioplankton system drive community assembly towards niche-based processes

Creator:: Vergin, Kevin L.
Abstract:: Over 100 monthly bacterioplankton DNA samples, from each of the surface and 200 m depths at the Bermuda Atlantic Time-series Study (BATS) site, were analyzed for community assembly processes. Correlation networks, filtered for potential autocorrelation artifacts, were constructed for each depth. Network characteristics for the two depths were remarkably similar...
Resource Type:: Masters Thesis
Full Text:: : Disturbances in a Marine Bacterioplankton System Drive Community Assembly Towards Niche-based Processes

Conserved properties in the metagenome of a large bacterioplankton population

Creator:: Wilhelm, Larry John
Abstract:: Candidatus Pelagibacter ubique is the first cultured representative of the SAR11 clade, a clade that is found throughout the oceans and accounts for approximately 25% of all bacterial cells [1]. It has a streamlined genome that is the smallest of any known free-living organism. In this study the complete genome...
Resource Type:: Masters Thesis
Full Text:: 2 Summary of syntig analysis of 7 marine microbial species and E. coli………………………………………………………… 24

An analysis of Sargasso Sea bacterioplankton diversity using 16S ribosomal RNA

Creator:: Britschgi, Theresa Baden
Abstract:: The objective of this project was to use ribosomal RNA genes, cloned from natural populations of Sargasso Sea bacterioplankton, as markers for picoplankton diversity. It is widely recognised that a majority of microorganisms have yet to be cultivated, and therefore much of extant microbial diversity remains unknown (50). The method...
Resource Type:: Masters Thesis
Full Text:: structure within bacterial species, suggests that populations of marine bacteria are very ancient. An

Characterization of novel marine oligotrophic bacteria isolated from the Pacific Ocean : description of Marinivirgula fluito gen. nov., sp. nov., Marinivirgula obesa gen. nov., sp. nov. and Litincola parvulus gen. nov., sp. nov.

Creator:: Shin, Eun Jung
Abstract:: A new high-throughput culturing (HTC) method using a low nutrient heterotrophic medium (LNHM) has led to the isolation of many novel strains of oligotrophic bacteria from marine ecosystems. Four strains belonging to a single dade, HTCC2151, HTCC218OT, HTCC2178T and HTCC2188T, were isolated from the coast of Oregon by the HTC...
Resource Type:: Masters Thesis
Full Text:: ) has led to the isolation of many novel strains of oligotrophic bacteria from marine ecosystems. Four

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Creator:: Gradoville, Mary Rose
Abstract:: Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...
Resource Type:: Masters Thesis
Full Text:: ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of

Quantification of Osmolytes in the Sargasso Sea Surface Layer Water Column

Creator:: Muslin, Omran
Abstract:: Oceanic carbon cycling plays a major role in determining global atmospheric CO₂. A better understanding of dissolved organic matter and its constituents in the water column and how it affects marine carbon cycling is sought after. This study successfully measured osmolytes, low molecular zwitterionic compounds derived from amino acids, in...
Resource Type:: Masters Thesis
Full Text:: al., 2013). Martinez et al. (1996) found that marine bacteria showed different metabolic

ScholarsArchive@OSU

Some physiological bases for survival of a marine bacterium during nutrient starvation

Phylogenetic characterization of the epibiotic bacteria associated with the hydrothermal vent polychaete Alvinella pompejana

Effect of high pressure processing on the survival of Vibrio parahaemolyticus strains in pure culture and Pacific oysters

Bacterioplankton diversity in the lower ocean mixed layer

Disturbances in a marine bacterioplankton system drive community assembly towards niche-based processes

Conserved properties in the metagenome of a large bacterioplankton population

An analysis of Sargasso Sea bacterioplankton diversity using 16S ribosomal RNA

Characterization of novel marine oligotrophic bacteria isolated from the Pacific Ocean : description of Marinivirgula fluito gen. nov., sp. nov., Marinivirgula obesa gen. nov., sp. nov. and Litincola parvulus gen. nov., sp. nov.

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Quantification of Osmolytes in the Sargasso Sea Surface Layer Water Column

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