Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"free living bacteria"”.
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Explaining the Variability of Free-Living and Attached Bacterioplankton Abundances in the Bay of St. Louis, Mississippi
… and temporal changes in BSL water quality, freeliving and attached bacterioplankton concentrations were enumerated by epifluorescence microscopy. Nine stations were sampled during outgoing tidal cycles from March to September 2007 to determine how the water quality changed as it is flushed …
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Establishing Sodalis species as a laboratory model of endosymbionts
… Microbial symbionts, being some of the longest living organisms on the planet with the largest distribution, offer the best opportunity to understand the complex mechanisms behind host-symbiont interactions and evolutionary processes. The insect kingdom, comprised of over 1.2 million described …
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Free living nitrogen-fixation in ponderosa pine/Douglas-fir forests in western Montana
… N fixing species may make non-symbiotic, free-living N fixing bacteria a more important source for N recovery in these forest ecosystems following disturbance. Recent studies also suggest that free-living N-fixing bacteria colonizing decomposing woody roots have the capacity to fix large …
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Free living nitrogen-fixation in ponderosa pine/Douglas-fir forests in western Montana
… N fixing species may make non-symbiotic, free-living N fixing bacteria a more important source for N recovery in these forest ecosystems following disturbance. Recent studies also suggest that free-living N-fixing bacteria colonizing decomposing woody roots have the capacity to fix large …
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Nutrient uptake and exudation patterns of nitrogenous substances and polyphenols in the kelp Ecklonia Maxima (Osbeck) Papenfuss
… in one experiment did not succeed in controlling free-living bacteria in the water column without affecting the kelp DOM production was diminished in the presence of antibiotics, leading to the conclusion that they affected the physiology of the epidermal cells. This provides indirect evidence …
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Investigating exudate- and habitat-mediated effects of phytoplankton on lake bacterial community dynamics
… are commonly observed between phytoplankton and bacterial communities. There are a number of potential explanations for correlated dynamics. Recent observations of temporal succession in lake microbial communities provide evidence for phytoplankton populations acting as biological drivers …
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Investigating the effect of phytoplankton on bacterial community composition across different environmental contexts
… seasonal succession effects changes in bacterial community composition and characterizing interactions between phytoplankton and bacteria across different environmental contexts. Observational and experimental approaches were combined to determine the effect of phytoplankton on the …
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Chemosynthetic communities in the deep sea : ecological studies
… complex. Primary production by chemoautotrophic bacteria can take place within host tissues of some invertebrates as well as on surfaces and in the water column and subsurface conduits. Carbon and nitrogen isotopic compositions of host tissues can be used to demonstrate the dependence of symbiont …
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Members of the Preprotein and Amino Acid Transporter Family Constitute Components of Novel Protein Import Pathways into Chloroplasts
… found in chloroplasts, mitochondria and free-living bacteria. Different expression patterns and localization of PRAT proteins suggest that they are functionally diverse beyond their role in protein translocation. QTC24/HP20 is located in the outer plastid envelope membrane of chloroplasts …
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The First Insights into the Phylogeny, Genomics, and Ecology of the Novel Bacterial Phylum Armatimonadetes
… Armatimonadetes, the most recently-recognised bacterial phylum. The overall aim of this research was to start to understand the ecology and phylogeny of Armatimonadetes, and provide a foundation for future research into the phylum, with the benefit of narrowing the current knowledge gaps on …