Climate Change Threatens Reef Survival
Since 2016, the reef has endured five mass bleaching events, each stripping away the vibrant colours that define this underwater paradise.
But the impact goes far beyond aesthetics – bleaching puts corals under severe stress, threatening their survival, and in turn, jeopardising the thousands of species that rely on them, including humans.
What causes bleaching?
Coral survival depends on a symbiotic relationship with algae known as zooxanthallae, which provide up to 90% of the coral’s energy through photosynthesis.
However, when corals experience heat stress, this partnership is breaks down. Stressed corals expel the zooxanthallae along with their coloured photosynthetic pigments. Thus, the coral turns white, a phenonmenon known as coral bleaching.
Ocean temperatures are rising
Human induced-climate change is the primary driver of increases in the frequency of coral bleaching events.
Without a significant reduction in emissions, global warming is projected to reach 1.5℃ above pre-industrial levels by 2035.
The Reef simply doesn’t have time to adapt to these rapid changes. At this level of heating, 70-80% of the world’s reefs could vanish without urgent intervention.
That’s why we are introducing
We are harnessing the native bacteria found in coral biofilms to address the overproduction of ROS.
By engineering these bacteria to produce catalases, enzymes that break down ROS into harmless oxygen and water, we aim to neutralize excess ROS.
Our system is engineered with a
Redox Sensitive Promoter
Kill Switch
Ensures that the catalase is only produced when coral is subject to heat stress. This will prevent interference with native functions that utilise ROS such as signalling pathways.
Keep engineered bacteria contained. In the unlikely event of adverse environmental effects can be chemically induced to eliminate engineered bacteria.
ROS Sensitive Promoter
Catalase
Explore more details on the background for our project, the problem we are trying to address, and our solution.
Find out more on these pages
Learn how we ensured safe practices in the lab and our handling of genetically modified organisms.
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