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L294 MichaelBourkeThesis2018Amended_Redacted.pdf (4.5 MB)

Anoxic metabolism in permeable sediments

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thesis
posted on 2019-04-05, 04:07 authored by Michael Francis Bourke
This research focused on investigating the large quantity of dissolved inorganic carbon production observed in anoxic permeable sediments, that could not be attributed to known heterotrophic processes. Through the use of flow through reactor experiments, metabolomic and porewater analyses were used to identify the process responsible. Large quantities of dissolved hydrogen and extensive lipid accumulation indicated fermentation was a major process under such conditions. Antibiotic flow through reactor treatments were used to confirm the minimal contribution by bacteria, indicating eukaryotic microalgae are likely employing dark fermentation to survive dark anoxic sediments.

History

Campus location

Australia

Principal supervisor

Perran Cook

Additional supervisor 1

Mike Grace

Year of Award

2018

Department, School or Centre

Chemistry

Course

Doctor of Philosophy

Degree Type

DOCTORATE

Faculty

Faculty of Science

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