Bacterial influences on the culture and bioactive natural products of the red seaweed Asparagopsis taxiformis

Silvia Blanco Gonzalez

doi:10.25907/00963

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Bacterial influences on the culture and bioactive natural products of the red seaweed Asparagopsis taxiformis

Dissertation

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Bacterial influences on the culture and bioactive natural products of the red seaweed Asparagopsis taxiformis

Silvia Blanco Gonzalez

University of the Sunshine Coast, Queensland

Doctor of Philosophy, University of the Sunshine Coast, Queensland

2025

DOI:

https://doi.org/10.25907/00963

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Abstract

Aquaculture

Agricultural biotechnology

Asparagopsis

seaweed

bacteria

alogenated compound

gentamicin

bromoform

tribromoacetic acid

probiotic

methane

biotechnology

aquaculture

Asparagopsis taxiformis has emerged as a natural feed additive for mitigating enteric methane through its halogenated metabolites, most notably bromoform. However, wide variability in bromoform content impedes reliable, large-scale cultivation to serve the 1.5 billion cattle in the world. Although >100 halogenated compounds have been identified in the genus, quantitative data on their interrelationships and the influence of surface-associated bacteria remain scarce. This thesis fills those gaps by examining how bacterial communities modulate growth rates and halogenated compounds profiles in cultured A. taxiformis. Across four chapters of bacterial manipulations and a metaanalysis, it develops a bacteria-driven enhancement of seaweed production and halogenated compounds.

Details

Title: Bacterial influences on the culture and bioactive natural products of the red seaweed Asparagopsis taxiformis
Authors: Silvia Blanco Gonzalez - University of the Sunshine Coast, Queensland, School of Health - Biomedicine
Contributors: Nick Paul (Principal Supervisor) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Alexandra Campbell (Co-Supervisor) - University of the Sunshine Coast, Queensland, School of Health - Biomedicine
Scott Cummins (Co-Supervisor) - University of the Sunshine Coast, Queensland, Centre for Bioinnovation
Awarding institution: University of the Sunshine Coast, Queensland
Degree awarded: Doctor of Philosophy
Publisher: University of the Sunshine Coast, Queensland
DOI: 10.25907/00963
Grants: Harnessing seaweed genes to mitigate methane emissions from livestock, DP200103013, Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991168645302621
Output Type: Dissertation

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