报告题目：Cool Microbes: Elucidating the activities of tundra soil microbial communities

报  告  人：  Max M. Haggblom, Ph.D.   Distinguished Professor and Chair

Department of Biochemistry and Microbiology

School of Environmental and Biological Sciences

The State University of New Jersey

报告时间：3月11日上午10:00-11:15

报告地点：闵行校区生物药学楼2#116

联  系 人：张晓君  13761960889

 

Abstract：Climate change is predicted to affect Arctic tundra ecosystems most severely, leading to significant warming of the soil and subsequently increased microbial activity and enhanced CO2 and CH4 release. Approximately one-third of the global soil carbon pool is stored in Arctic and boreal ecosystems and biodegradation of sequestered carbon in these regions is thus expected to be a significant contributor to atmospheric chemistry and climate.  We seek to delineate the active microbial community in Arctic tundra soils and discern their roles in C and N metabolism and understand how different members of the microbiome modulate their responses to variations in temperatures and pulses of C and N substrates.  The divergent life-styles of different microorganisms will be reflected in their ability to function in frozen soils and in their responses to environmental perturbations, leading to seasonal dynamics of activities. By understanding these processes in frozen soil systems, we hope to better predict the extent of C and N released as greenhouse gases which subsequently contribute to climate change.

 

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