You are here: Home News and Events Seminars Biology Spring 2019 Examining the role of intracellular pH regulation in coral-microbial symbioses under threat from climate change

Examining the role of intracellular pH regulation in coral-microbial symbioses under threat from climate change

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Speaker
Katie Barott Assistant Professor of Biology at University of Pennsylvania School of Arts and Sciences
When
19 March 2019 from 3:30 PM to 4:30 PM
Where
8 Mueller Lab
Host
Dept of Biology
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Abstract:  The ability to detect and regulate changes in acid/base homeostasis is critical for all forms of life, and is of increasing importance for reef-building corals experiencing ocean warming and acidification due to climate change. Corals undergo daily fluctuations in both intra- and extracellular pH due to calcification and photosynthesis; however, little is known about how corals sense or regulate these changes or how changes in acid/base conditions affect the physiology of this complex holobiont. In this talk I will discuss two different mechanisms for pH regulation that we have begun to describe in corals, one involved in detecting changes in the acid-base status of the cell and the other involved in actively modifying the cell’s pH environment. These studies are a first step towards understanding how corals interact with and modify the pH of their environment, and will help predict the capacity of corals to withstand and adapt to a changing marine environment.