Gene Therapy Could Help Corals Survive Climate Change

A microbiologist is harnessing beneficial bacteria to help coral reefs weather pollution, overfishing and climate change















Share on Tumblr



Image: Erinn Muller/Mote Marine Laboratory

Editor's note: Climate Query is a semi-weekly feature offered by Daily Climate, presenting short Q&A's with players large and small in the climate arena. Read others in the series at http://wwwp.dailyclimate.org/tdc-newsroom/query/climate-queries.

Kim Ritchie fell into coral research as an undergraduate, got a Ph.D. in genetics and was doing post-doctoral research in Panama when she lost her funding. With the ideal training for biotech, however, she slipped right into a startup. But when the company went bankrupt, she jumped back into research.

Today she manages the microbiology program at Mote Marine Laboratory in Sarasota, Fla., a nonprofit research center dedicated to studying marine and estuarine ecosystems. Ritchie is taking a novel approach to reviving stressed coral reefs, looking at the role bacteria can play in coral health. She is tinkering with gene therapy – primarily DNA swapping – to restore coral reefs by fostering beneficial bacterial growth.

Ritchie earned her doctorate in genetics from University of North Carolina, Chapel Hill, and did post-doctoral research at the Smithsonian Tropical Research Foundation in Panama. Ritchie has two grown daughters – Emily and Jillian – two cats and two dogs, loves watersports and enjoys cooking Mediterranean food in her spare time.

Why are reefs important?
Many reasons. They are storm breaks, essentially. They're also habitat to many commercially important species and fisheries. Coral reefs, while they make up a small percentage of the oceans, harbor a diverse assemblage of organisms.

Coral reefs face at least three threats – pollution, overfishing and climate change. What has had the most impact?
All three have had an effect but climate change, with its increasing temperatures and changing ocean pH, is the most detrimental because it is most closely linked with coral disease and death worldwide.

There are signs out of Australia that corals are tougher than expected. How do we know coral reefs won't just adapt?
It’s not surprising and it is hopeful. There are subpopulations that don’t die off. Perhaps they can reseed the coral reefs and everything becomes more resilient.

Australians are also freezing polyps and coral embryos in the hopes of recreating the Great Barrier Reef in some future era.

If the things they are saving aren’t resistant to whatever the change is, that might not be a good solution.

You are investigating the viability of gene therapy – re-introducing healthy bacteria – to stem coral degradation. How is that research progressing?
Once we learn how about what genes are being exchanged – and with whom – we can start to think about applying this technology.

Explain a little the logistics of your research.

I dive and free dive to do surveys and collect samples but I'm a microbiologist and molecular biologist so most of my work takes place in the laboratory.  

Percentage of time in the water versus the lab?
I spend a couple of days a month in the water. I should be in the lab more than I am but, quite often, I am in front of my computer. I would say, computer first, then lab, then water.

Any scary moments while diving?
One of the places I do a lot of my work is Looe Key reef. It’s a protected area so there are big fish. When I first started diving there I came face to face with some pretty big sharks. Then I realized, they don’t care, they just keep swimming.

Most distressing thing you have seen in a coral reef?
We had a cold snap that completely killed about a third of the corals near shore in the lower Keys a few years back. It is something no one could have predicted.



6 Comments

Add Comment
View
  1. 1. geojellyroll 06:56 PM 2/29/12

    ha1 ha! So now a geneticist is a source for info on climate change?

    Hint...FUNDING!

    Reply | Report Abuse | Link to this
  2. 2. Torchlake 07:53 PM 2/29/12

    Humanity needs to collect genetic material on all forms of life. We are racing to the point of " Soylent Green" It's a movie worth the watch!

    Reply | Report Abuse | Link to this
  3. 3. ElizBent 09:02 PM 2/29/12

    I'm a little dismayed that you spent more time discussing the hobbies and such of the microbiologist than on describing the means by which she plans to use gene therapy. Is she introducing genetically modified symbiotic bacteria? What kind of genetic modifications have been tested so far? How will the bacteria be introduced to the environment? There are dozens of questions I have now, after reading this article, and the kinds of questions asked by the reporter are only excusable if the reporter was twelve. What a terrible example of science reporting.

    Reply | Report Abuse | Link to this
  4. 4. ElizBent 09:02 PM 2/29/12

    I'm a little dismayed that you spent more time discussing the hobbies and such of the microbiologist than on describing the means by which she plans to use gene therapy. Is she introducing genetically modified symbiotic bacteria? What kind of genetic modifications have been tested so far? How will the bacteria be introduced to the environment? There are dozens of questions I have now, after reading this article, and the kinds of questions asked by the reporter are only excusable if the reporter was twelve. What a terrible example of science reporting.

    Reply | Report Abuse | Link to this
  5. 5. thevillagegeek in reply to geojellyroll 01:46 AM 3/1/12

    Erudite, authoritative and informative as always...

    Reply | Report Abuse | Link to this
  6. 6. sault in reply to geojellyroll 03:15 AM 3/1/12

    What about all that Exxon money going towards the Heartland Institute? I never hear you ask about THEIR funding in your little rants...

    Reply | Report Abuse | Link to this
Leave this field empty

Add a Comment

You must sign in or register as a ScientificAmerican.com member to submit a comment.
Click one of the buttons below to register using an existing Social Account.

More from Scientific American

See what we're tweeting about

Scientific American Editors

More »

Free Newsletters


Get the best from Scientific American in your inbox

Solve Innovation Challenges

Powered By: Innocentive

  SA Digital

Latest from SA Blog Network

  SA Digital

Science Jobs of the Week

Email this Article

Gene Therapy Could Help Corals Survive Climate Change

X
Scientific American Magazine

Subscribe Today

Save 66% off the cover price and get a free gift!

Learn More >>

X

Please Log In

Forgot: Password

X

Account Linking

Welcome, . Do you have an existing ScientificAmerican.com account?

Yes, please link my existing account with for quick, secure access.



Forgot Password?

No, I would like to create a new account with my profile information.

Create Account
X

Report Abuse

Are you sure?

X

Institutional Access

It has been identified that the institution you are trying to access this article from has institutional site license access to Scientific American on nature.com. To access this article in its entirety through site license access, click below.

Site license access
X

Error

X

Share this Article

X