HOME > Events > USJI Seminar

Events

USJI Seminar

The USJI capitalizes on the networks it has cultivated within Washington D.C. to organize seminars which feature Japanese and U.S. politicians, representatives from governmental bodies, researchers from think tanks, major companies and universities and other intellectuals. The seminars address timely themes and afford participants opportunities for discussion with the speakers.

Enigmas of the alkenone paleothermometer: How is environmental information recorded in these molecules and how can they be best used for climate change studies?

Date and Time

Thursday, December 13, 2018 3:30p.m.-5:00p.m.

Venue

JSPS/JST, Washington Office, Japan Society for the Promotion of Science
JSPS/JST Seminar Room, Washington Office, Japan Society for the Promotion of Science 2001 L Street NW, Suite 1050, Washington, DC 20036

Abstract

The reconstruction of paleotemperature is critical for understanding past climate change and thereby improving predictions of future change in both atmospheric and aquatic environments. The unsaturation index of alkenones, which were discovered in marine sediments about 40 years ago, has frequently been used for the reconstruction of paleotemperature in the surface ocean, where alkenone-producers, namely haptophyte algae, grow.
The Shiraiwa Group (University of Tsukuba, Japan) has collaborated with Prof. Toney (the University of Glasgow, UK), and succeeded in isolating new alkenone-producing haptophyte strains. Further, the Shiraiwa Group identified the genes and enzymes contributing to the desaturation reaction of alkenones that cause their temperature-dependency using genetic transformation techniques. The information and technique will be useful for elucidating biosynthetic and regulatory mechanism on temperature-recording in alkenone molecules.
Prof. D’Andrea’s research is geared toward understanding global climate change, including current anthropogenic driven changes and past changes to the Earth System for the goal of developing a better understanding of how the Earth System responds to natural and human-induced perturbations. He is also focusing on the climate change in the Arctic region, one of important areas for global climate change now.
This USJI seminar will forcuss to discuss the current status of alkenone paleothermometry in the reconstruction of paleotemperature and how to best direct future research efforts on ‘The Alkenone Molecular Thermometer’ in a manner that most effectively addresses outstanding climate questions that concern paleotemperature of the oceans and inland lakes.

Moderator and Speakers

shiraiwa
Yoshihiro Shiraiwa
Professor, University of Tsukuba

Speakers

Andrea
William D’Andrea
Lamont Associate Research Professor, Columbia University
Toney
Jaime L. Toney
Professor, University of Glasgow

Supported by
Japan Society for the Promotion of Science (JSPS)
Japan Science and Technology Agency (JST) Washington DC Office

Past

October 09,2018
February 09,2016
October 26,2015
September 18,2015
March 19,2015
November 04,2014
May 01,2014
April 04,2014
February 13,2014
December 04,2013
December 03,2013
November 07,2013
September 18,2013
May 01,2013
April 29,2013
March 20,2013
February 09,2013
December 10,2012
September 21,2012
August 07,2012
May 17,2012
May 15,2012
March 27,2012
February 22,2012
January 26,2012
January 23,2012
January 17,2012
November 03,2011
October 18,2011
October 17,2011
September 21,2011
September 20,2011
April 06,2011
December 16,2010
December 07,2010
February 01,2010
Support USJI

Upcoming Events

December 13,2018
Enigmas of the alkenone paleothermometer

3:30p.m.-5:00p.m.

  • Sponsoring Universities

  • GET UPDATES

    The USJI provides email updates about events and other news. Please go here to sign up for/stop receiving updates.