Dipti Nayak (UC Berkeley) 2: Mysteries of the Methanogens

www.ibiology.org/microbiology...
In her second video, Nayak describes research she has done on methanogenic archaea - microorganisms that produce the potent greenhouse gas methane. One species of methanogens, Methanosarcina acetivorans, has unique chemical modifications on the enzyme it uses to produce methane. Dr. Nayak describes how she used CRISPR/Cas9 genome editing to determine that these modifications are used to protect M. acetivorans from environmental stress to ensure that the organism can support its metabolic needs in a changing environment.
0:00 Introduction
2:50 Investigating Methanosarcina enzyme function
9:12: The future of archaea research
Speaker Biography:
Dipti Nayak received her PhD in Organismic and Evolutionary Biology from Harvard University in 2014. She performed postdoctoral research at the University of Illinois, where she studied the physiology and evolution of methanogenic archaea. The Nayak lab at UC Berkeley employs genetic, genomic, and biochemical tools to study the physiology, metabolism, evolution, and cell biology of methanogenic archaea.
mcb.berkeley.edu/faculty/ggd/...
Credits:
Elliot Kirschner (SCL): Executive Producer
Sarah Goodwin (SCL): Executive Producer
Shannon Behrman (iBiology): Executive Producer
Brittany Anderton (iBiology): Producer
Eric Kornblum (iBiology): Editor, Videographer
Derek Reich (ZooPrax Productions): Videographer
Adam Bolt (The Edit Center): Editor
Rebecca Ellsworth (iBiology): Editor

[@NeonsStyleHD]

Fascinating. Thank you. I love that this channel does not dumb down Science. It's what makes it so good.

[@PhilipSalen]

Archea are fantastically interesting Prokaryotes; the scientist is also an excellent, and enthusiastic explainer! Great stuff!

[@dallasweaver4061]

An observation from the 1970s when I was doing research on Freshkills landfill in NY (where the Twin Towers went after 9/11) looking at methane generation rates for Getty Synthetic fuels. This was one of the worst managed landfills in the country with minimal compaction and no runoff control or surface cover to speak of. The low compaction and high leachate levels (full of leachate) had the methane bubbling through a highly insulated surface. The metabolic heat from all the gas fermentation heated the mass to over 50ºC. The rate of metabolism and gas generation appeared to be limited by the heat transfer rate through the surface. This resulted in zeroth order gas generation kinetics (ie constant over time).

[@berguidf]

Excellent. And very clear. 👏🏽👏🏽

[@nnbmx]

I'm doing my thesis on the history of archaea research. Sure there's a lot to do there :) very interesting

[@swastikbiswas8293]

Is this a recorded lecture cause how they give time stamps in the description

[@wiki5566]

Yes

[@swastikbiswas8293]

@@wiki5566 ahh Thanks

[@danpozzi3307]

Totally interesting to the student of information.

[@BR-hi6yt]

Very interesting video - gripping in fact - thx. Hypothesis or speculation about how the first DNA nucleus formed? From Archaea? Hypothesis or speculation about first DNA to store information - how did that happen at all?

[@medicalbiochemistry_]

Good job

[@adeshkumarmahraj7444]

Thank you Ma'am I listened from Pakistan ♥️

[@tamilbiology5078]

Interesting!!

[@sandy5976]

this is really fascinating world of Archaebacteria. highly unknown commodity. good work.

[@Master-CorrectBiology]

Great

[@HereWasDede]

brilliant

[@thelifeanddimension]

I am doing phd in kinetics of methane production

[@wiki5566]

I might be fall in love with her smile, waiting

[@swapnilpradhan9543]

Thioglycine might be present because of reducing environment around the organism.

[@adlooh3967]

✨

[@christopherellis2663]

And the other 20% is from rice production.

[@superspeederbooster]

Gugu gaga

[@CannabinatedFantasy]

wont global warming help big ag? longer growing seasons, more profit from reduced water rights.... i have a feeling theres a reason teachers glance over archaea when teaching bio