Faculty Candidate Seminar - Katie Barott

10/21/2015 - 12:15pm
Hubbs Hall 4500
Event Description: 


DATE:           October 21st, Wednesday, 12:15 p.m.  

LOCATION:     Hubbs Hall 4500
SPEAKER:      Katie Barott, Ph.D.
                        Hawaii Institute of Marine Biology

The physiology of coral-microbial symbiosis

Symbiosis with microorganisms plays an essential role in the health and physiology of reef-building corals. However, the physiological function of these relationships is increasingly threatened by environmental stressors such as climate change. My research investigates the cellular mechanisms controlling host-microbe interactions, as well as the physiological and ecological consequences of these dynamics. In this talk I will discuss examples of coral interactions with two of the major players within the coral symbiont community: 1) endosymbiotic dinoflagellate algae of the genus Symbiodinium, and 2) tissue and surface-associated Bacteria. Using a combination of live-cell microscopy, immunochemistry, and organismal physiology, I have identified a novel host-driven carbon concentrating mechanism that promotes Symbiodinium photosynthesis. Detailed mechanistic studies such as these can be applied to a variety of symbiotic marine organisms, and are an important step towards understanding how symbiosis affects host physiology. Furthermore, by integrating across biological scales and maintaining an environmental context, my work will help determine the capacity of corals and other symbiotic marine organisms to withstand and adapt to a changing marine environment.

Faculty Host:  Kathy Barbeau  (kbarbeau@ucsd.edu)
If you have an interest in meeting with the candidate, please contact lcosti@ucsd.edu.
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