Department of Fisheries Oceanography / SMAST seminar - April 25, 2018 - Dr. Hollie Putnam
When: Wednesday,
April 25, 2018
2:30 PM
-
3:30 PM
Where: New Bedford New Bedford, MA
Description: Department of Fisheries Oceanography
Avenues of Marine Invertebrate Acclimatization in Response to Rapid Environmental Change
Dr. Hollie Putnam
Assistant Professor
Department of Biological Sciences
University of Rhode Island
Wednesday, April 25, 2018
2:30 pm - 3:30 pm
SMAST-E rm. 101/102
836 South Rodney French Boulevard, New Bedford, MA
Abstract:
The swiftly changing climate presents a challenge to organismal fitness by creating a mismatch between the current environment and phenotypes adapted to historic conditions. Rapid compensatory response to environmental change generated by epigenetic mechanisms and the emergent properties of symbiosis can provide a temporal buffer for genetic adaptation. My research focuses on these acclimatory mechanisms that may be especially crucial for sessile benthic marine systems, such as reef-building corals and bivalve mollusks, where climate change factors including ocean acidification and increasing temperature elicit strong negative physiological responses including bleaching, disease, and mortality. By integrating across biological scales from molecular to ecological in a series of preconditioning experiments to future temperature and ocean acidification, we documented evidence of intra and trans-generational acclimatization and parental effects in geoduck clams and corals. Furthermore, our findings support a role for Symbiodinium shuffling in coral holobiont performance and DNA methylation in phenotypic plasticity in corals. Induction of potentially heritable phenotypic plasticity via preconditioning or parental effects may provide mechanisms with significant implications for sessile marine organism persistence under rapid climate change.
To access the live broadcasting, go to https://echo360.org/ and click on
"Alternate login"
you will have to login as smast@umassd.edu with the password: smastumassd
After login you will have to click on ALL CLASSES (MAR 700-01 - DEOS seminar or MAR 700-02 - DFO Seminar) and click on the green LIVE streaming
To view a video of an SMAST seminar (post-October 1, 2014), go to https://www.umassd.edu/smast/events/seminar-series/ and click on a highlighted title
For more information, please contact cfox@umassd.edu
Avenues of Marine Invertebrate Acclimatization in Response to Rapid Environmental Change
Dr. Hollie Putnam
Assistant Professor
Department of Biological Sciences
University of Rhode Island
Wednesday, April 25, 2018
2:30 pm - 3:30 pm
SMAST-E rm. 101/102
836 South Rodney French Boulevard, New Bedford, MA
Abstract:
The swiftly changing climate presents a challenge to organismal fitness by creating a mismatch between the current environment and phenotypes adapted to historic conditions. Rapid compensatory response to environmental change generated by epigenetic mechanisms and the emergent properties of symbiosis can provide a temporal buffer for genetic adaptation. My research focuses on these acclimatory mechanisms that may be especially crucial for sessile benthic marine systems, such as reef-building corals and bivalve mollusks, where climate change factors including ocean acidification and increasing temperature elicit strong negative physiological responses including bleaching, disease, and mortality. By integrating across biological scales from molecular to ecological in a series of preconditioning experiments to future temperature and ocean acidification, we documented evidence of intra and trans-generational acclimatization and parental effects in geoduck clams and corals. Furthermore, our findings support a role for Symbiodinium shuffling in coral holobiont performance and DNA methylation in phenotypic plasticity in corals. Induction of potentially heritable phenotypic plasticity via preconditioning or parental effects may provide mechanisms with significant implications for sessile marine organism persistence under rapid climate change.
To access the live broadcasting, go to https://echo360.org/ and click on
"Alternate login"
you will have to login as smast@umassd.edu with the password: smastumassd
After login you will have to click on ALL CLASSES (MAR 700-01 - DEOS seminar or MAR 700-02 - DFO Seminar) and click on the green LIVE streaming
To view a video of an SMAST seminar (post-October 1, 2014), go to https://www.umassd.edu/smast/events/seminar-series/ and click on a highlighted title
For more information, please contact cfox@umassd.edu
Contact: > See Description for contact information
Topical Areas: School for Marine Sciences and Technology, SMAST Seminar Series