Seminary 29-05-2018. Direct observations on microbes at extremes conditions.

By Anurag Sharma, currently at Suffolk University, Boston, USA)


Day: May 29th, 2018
Hour: 12:00
Venue: Auditorio del Centro de Astrobiología (CSIC-INTA)
Instituto Nacional de Técnica Aeroespacial (INTA)
Ctra de Ajalvir, km 4
28850 Torrejón de Ardoz, Madrid, Spain.


To access INTA campus, it is necessary to send a mail to seminarios@cab.inta-csic.es indicating name and surname, ID number and, if you came by car: its brand, model and plate.


Title: The new era of Extremely Large Telescopes: CAB participation in ELT-HARMONI

Abstract: Efforts to understand origin and sustenance of life beyond Earth are fundamentally tied to our understanding of the limits (the adaptability& survivability) of life. Life in the extreme is therefore a central theme for any astrobiology model.

These are the conditions where biology is often directly competing with geochemistry in such a way that biology has found survival mechanisms in all niches of viable energy resource.

Although there are number of ongoing field-based studies on isolation, growth and physiology of extremophiles, experiment based studies remain scant.

This presentation will revisit some breakthrough experimental techniques that provided the first direct evidence of life’s survival at niches that far exceeded assumed physiochemical limits.

Newer experimental results will be presented to demonstrate bacterial survival in sustained exposure to extreme conditions, while highlighting some physical and chemical strategies for long term survival/adaptations.

The results from these experiments will help outline an expanded environmental l limits for habitability in the universe while providing unique sights into adaptive response to environmental stress of the extreme kind.




Bibliography:

Sharma, A., Scott, J.H., Cody, G.D., Fogel, M.L., Hazen, R.M., Hemley, R.J., Huntress, W.T. (2002) Science 295, 1514– 1516.
D. Vanlint et al., mBio 2, 1-3 (2011).
Sharma, A., Cody, G.D., Scott, J. H., Hemley, R.J. (2005) In Chemistry under Extreme Conditions (Ed. R. Manaa), Elsevier Science, 83-106.
Hazael et al. (2016) Life 2016, 6, 34;

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