Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes
Thesis (Ph.D.)--University of Washington, 2014 The prevalence of low temperature habitats on Earth makes the ecology of organisms adapted to low temperature environments (psychrophiles) an important area of research. Studies of low temperature ecosystems including the deep sea, sea ice, glacial ice,...
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ftunivwashington:oai:digital.lib.washington.edu:1773/26083 2023-05-15T16:37:30+02:00 Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes Bowman, Jeff Shovlowsky Deming, Jody W 2014 application/pdf http://hdl.handle.net/1773/26083 en_US eng table_S6_1.tsv; text; Table S6.1. table_S6_2.tsv; text; Table S6.2. table_S6_3.tsv; text; Table S6.3. table_S6_4.tsv; text; Table S6.4. table_S7_1.pdf; pdf; Table S7.1. Bowman_washington_0250E_13643.pdf http://hdl.handle.net/1773/26083 Copyright is held by the individual authors. cryosphere frost flower horizontal gene transfer prokaryotic evolution psychrophile sea ice bacteria Biological oceanography Microbiology Genetics oceanography Thesis 2014 ftunivwashington 2023-03-12T18:51:31Z Thesis (Ph.D.)--University of Washington, 2014 The prevalence of low temperature habitats on Earth makes the ecology of organisms adapted to low temperature environments (psychrophiles) an important area of research. Studies of low temperature ecosystems including the deep sea, sea ice, glacial ice, permafrost, and snow have provided a wealth of knowledge on the resilience of psychrophilic microbial ecosystems in the face of anthropogenic and natural disturbance, the history of microbial life on Earth, and the potential distribution of life in extraterrestrial environments. Taking these three knowledge areas as motivation, this dissertation further explores psychrophile ecology. Chapter 1 introduces the history of research on psychrophiles. Chapters 2 and 3 explore the diversity of Bacteria found in two understudied psychrophile habitats; multiyear sea ice and frost flowers. Chapter 4 explores the metabolic potential of the latter environment through metagenomics. Chapter 5 introduces a novel method for evaluating genome plasticity in populations, and applies this method in a comparative analysis of psychrophiles and mesophiles. Chapter 6 examines how psychrophilic enzymes are optimized for low temperatures through amino acid substitutions and introduces a model for further exploration of amino acid preferences. Chapter 7 explores the potential for psychrophiles to degrade alkanes, a major component of crude oil, by the presence of genes coding for alkane hydroxylases. Thesis Ice permafrost Sea ice University of Washington, Seattle: ResearchWorks |
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Open Polar |
collection |
University of Washington, Seattle: ResearchWorks |
op_collection_id |
ftunivwashington |
language |
English |
topic |
cryosphere frost flower horizontal gene transfer prokaryotic evolution psychrophile sea ice bacteria Biological oceanography Microbiology Genetics oceanography |
spellingShingle |
cryosphere frost flower horizontal gene transfer prokaryotic evolution psychrophile sea ice bacteria Biological oceanography Microbiology Genetics oceanography Bowman, Jeff Shovlowsky Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes |
topic_facet |
cryosphere frost flower horizontal gene transfer prokaryotic evolution psychrophile sea ice bacteria Biological oceanography Microbiology Genetics oceanography |
description |
Thesis (Ph.D.)--University of Washington, 2014 The prevalence of low temperature habitats on Earth makes the ecology of organisms adapted to low temperature environments (psychrophiles) an important area of research. Studies of low temperature ecosystems including the deep sea, sea ice, glacial ice, permafrost, and snow have provided a wealth of knowledge on the resilience of psychrophilic microbial ecosystems in the face of anthropogenic and natural disturbance, the history of microbial life on Earth, and the potential distribution of life in extraterrestrial environments. Taking these three knowledge areas as motivation, this dissertation further explores psychrophile ecology. Chapter 1 introduces the history of research on psychrophiles. Chapters 2 and 3 explore the diversity of Bacteria found in two understudied psychrophile habitats; multiyear sea ice and frost flowers. Chapter 4 explores the metabolic potential of the latter environment through metagenomics. Chapter 5 introduces a novel method for evaluating genome plasticity in populations, and applies this method in a comparative analysis of psychrophiles and mesophiles. Chapter 6 examines how psychrophilic enzymes are optimized for low temperatures through amino acid substitutions and introduces a model for further exploration of amino acid preferences. Chapter 7 explores the potential for psychrophiles to degrade alkanes, a major component of crude oil, by the presence of genes coding for alkane hydroxylases. |
author2 |
Deming, Jody W |
format |
Thesis |
author |
Bowman, Jeff Shovlowsky |
author_facet |
Bowman, Jeff Shovlowsky |
author_sort |
Bowman, Jeff Shovlowsky |
title |
Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes |
title_short |
Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes |
title_full |
Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes |
title_fullStr |
Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes |
title_full_unstemmed |
Life in the cold biosphere: The ecology of psychrophile communities, genomes, and genes |
title_sort |
life in the cold biosphere: the ecology of psychrophile communities, genomes, and genes |
publishDate |
2014 |
url |
http://hdl.handle.net/1773/26083 |
genre |
Ice permafrost Sea ice |
genre_facet |
Ice permafrost Sea ice |
op_relation |
table_S6_1.tsv; text; Table S6.1. table_S6_2.tsv; text; Table S6.2. table_S6_3.tsv; text; Table S6.3. table_S6_4.tsv; text; Table S6.4. table_S7_1.pdf; pdf; Table S7.1. Bowman_washington_0250E_13643.pdf http://hdl.handle.net/1773/26083 |
op_rights |
Copyright is held by the individual authors. |
_version_ |
1766027797837381632 |