Planet Microbes: Deep Sea Microbes скачать в хорошем качестве

Planet Microbes: Deep Sea Microbes

1/6/2021 There is seemingly no environment on earth that is inhospitable to microbes. In past meetings we’ve talked about the coldest, hottest or driest niches on Earth, and how there’s always an intrepid bacterium, archaea, or fungi that makes a living there. There’s another factor beyond hot, cold or dry that we haven’t talked about yet: time. For our first Planet Microbes meeting in 2021, we’re going to take a visit to the sediments deep beneath the seafloor….and slooooooow things down. These deep sediments are an inhospitable environment where resources that microbes need to grow are in seriously short supply, yet somehow these critters manage to eke out a living, growing ever so slowly over tens of thousands of years. How do these microbes do it, how do scientist study them, and why should we care (hint: it’s super important for Earth’s nitrogen cycle)—you’ll have to join our discussion to find out. Scientific article: https://www.pnas.org/content/pnas/117... Pop sci article: https://phys.org/news/2020-12-microbe... --- About this series: Microbes are the invisible engines that keep the planet running. They were the first lifeforms to arise on early Earth 3.5 billion years ago, and they’ll likely exist long after we’re gone...but it's here and now we’re interested in. How do microbes influence our climate, and how are they responding to climate change? Join ocean microbiologist Kyle Frischkorn, Ph.D. for an informal discussion of environmental microbiology research that’s hot off the press. This monthly discussion will be centered around a recently published scientific article that delves into environmental microbiology, with a special emphasis on the changing climate. Participants of all backgrounds and experiences are welcome to join the conversation. RSVP here to receive the scientific papers we’ll discuss 48 hours before the event. --- Meet the Instructor Kyle Frischkorn’s (he/him) career as a scientist set sail when he learned that phytoplankton— microscopic plants that live in aquatic environments —are responsible for half the oxygen in every breath we take. The question of how these microbes accomplish this feat, and how they’ll fare in a changing climate, has continually inspired his scientific endeavors. Kyle obtained his PhD in microbial oceanography from the Lamont-Doherty Earth Observatory of Columbia University and conducted postdoctoral research at the École Normale Supérieure in Paris, France. His research took him to the remote reaches of the tropical oceans, where he studied the bacterium Trichodesmium, a nitrogen-fixing phytoplankton, that hosts a microbiome of other bacteria that work together to survive the high seas and perform the metabolic activities that keep the planet habitable. Kyle is now an associate editor at the scientific journal Nature Communications, where he is responsible for handling research manuscripts in all areas where biology and Earth science intersect. ---