Environmental relevance and physiological role of 3-methylhopanoids in anoxygenic phototrophic bacteria

Placeholder Show Content

Abstract/Contents

Abstract
This dissertation research seeks to utilize laboratory and field techniques to uncover meaning behind the occurrence of 3-methylhopanoids in an anoxygenic phototroph. I am interested in how the environmental context of a new 3-methylhopanoid source organism isolated from an extreme environment will influence future interpretations of both rock record and modern ecosystems. I chose to study this new lineage of 3-methyhopanoid producers in laboratory cultures (CHAPTER 1), in situ from the environments that this strain was directly isolated from (CHAPTER 2), and in silico through the metagenomic data of other hot springs and an expanding list of environments in which the purple non-sulfur bacteria (PNS) call home (CHAPTER 3). This work indicates that PNS bacteria are potential sources of 3-methylhopanoids and thus should be considered along with methanotrophs, and the more rarely indicated acetic acid bacteria, when interpreting modern and ancient sedimentary biomarker records.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Mayer, Marisa Hayley
Degree committee member Dekas, Anne
Degree committee member Francis, Christopher
Degree committee member Welander, Paula
Thesis advisor Dekas, Anne
Thesis advisor Francis, Christopher
Thesis advisor Welander, Paula
Associated with Stanford University, Department of Earth System Science

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Marisa Hayley Mayer.
Note Submitted to the Department of Earth System Science.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/wh054vt1015

Access conditions

Copyright
© 2021 by Marisa Hayley Mayer
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

Also listed in

Loading usage metrics...