Meet Graduate Researcher Natasha Sushenko

Meet Graduate Researcher Natasha Sushenko

Meet Natasha Sushenko, Graduate Researcher

May 11, 2021
LAS VEGAS, NEV.

By Kaylynn Perez

Environmental Microbiology
Pathogenic Bacteria
Space

Natasha Sushenko is a graduate research assistant with the Division of Hydrologic Sciences at the Desert Research Institute (DRI) in Las Vegas. She is a Master’s student in Biological Sciences in the School of Life Sciences at the University of Nevada, Las Vegas (UNLV), and is co-mentored by Duane Moser, Ph.D., of DRI and Brian Hedlund, Ph.D., of UNLV. Funding for Natasha’s position is provided by the NASA EPSCOR Rapid Response Research Program. Learn more about Natasha and her graduate research in this interview with DRI’s Behind the Science Blog!

Natasha Sushenko processes samples in the Environmental Microbiology Lab at the Desert Research Institute during a COVID-19 wastewater monitoring study.

Natasha Sushenko processes samples using a biosafety cabinet in the Environmental Microbiology Lab at the Desert Research Institute in December of 2020 during a SARS-CoV-2 wastewater monitoring study. Sushenko is a graduate research assistant with the Division of Hydrologic Sciences at DRI in Las Vegas.

Credit: Ali Swallow/DRI.

DRI: What brought you to DRI?

Sushenko: Dr. Duane Moser spoke in my undergraduate Microbial Ecology class at UNLV, and I was really interested in how his lab studies the deep biosphere, the zone of life that exists far below Earth’s surface. His lab does fascinating research on “microbial dark matter,” yet-to-be-classified microorganisms that live under extreme conditions within the deep biosphere and are difficult to culture in the lab. We kept in touch, and even though I considered leaving Las Vegas to do my graduate studies, the opportunities that he and DRI offered were too good to pass up.

What research projects are you working on? And who at DRI are you working with?

Sushenko: I work in Dr. Moser’s Environmental Microbiology Lab here at DRI. We completed a COVID-19 wastewater monitoring study this winter, but my main research project is a NASA collaboration with the Jet Propulsion Laboratory (JPL). They sent our lab strains of a pathogen (disease-causing bacterium) called Klebsiella pneumoniae that were isolated from the International Space Station (ISS). This microbe is a common cause of hospital-borne pneumonia and other infections, but in this case, it was found living on surfaces on the ISS, including on their space toilet. This pathogen is of particular concern to NASA because it has appeared in multiple samples across several years of microbiome monitoring, and it is growing more prevalent over time. While no astronauts on the space station have gotten sick, future human spaceflight to Mars and beyond may require astronauts to go on trips lasting years before returning to Earth. Because of this, NASA wants to know how pathogens like K. pneumoniae respond and adapt to living in space.

Our goal is to study how this pathogen’s virulence, or ability to cause severe illness, and its resistance to antimicrobial drugs and cleaners changes when exposed to the stresses of microgravity. Microgravity is the condition in space where people or objects appear to be weightless. This is something we can study here on Earth, at DRI, with a machine that simulates microgravity.

Above, left: Natasha Sushenko processes samples using a biosafety cabinet in the Environmental Microbiology Lab at the Desert Research Institute in December of 2020 during a SARS-CoV-2 wastewater monitoring study.

Credit: Ali Swallow/DRI.

Above, right: Natasha Sushenko performs field chemistries on deep borehole samples in the Funeral Mountains near Death Valley on 28-April, 2021. Here Natasha is using a Hach Colorimeter to measure dissolved oxygen, iron, sulfate, and sulfide to test whether increased rates of pumping from a deep well facilitated collection of deeper samples from a geologic fracture zone. Natasha contributed to the DRI-led portion of an NSF-funded collaboration with Bigelow Lab in ME and others focused on applying cutting-edge genomic approaches to the oceans, marine crustal fluids, and the continental subsurface.

Credit: Detra Page/DRI.

DRI: What are your short-term and long-term goals while at DRI?

Sushenko: Right now, I’m on the master’s degree plan, but I’m considering changing to Ph.D. track to continue working on my project to completion and beyond. The issue of the microbiome of the built environment in closed systems like spacecraft will only become more important as agencies and companies explore travel to the moon and Mars. You don’t get opportunities to work with NASA at every institution, and I’m excited that DRI gives me this opportunity.

DRI: Tell us about yourself. What do you do for fun?

The pandemic has cramped a lot of my favorite hobbies, but usually, I love to travel to visit friends, go camping, hike, and just being outside with others. This past year I’ve instead spent more time hanging out with my dog, gardening (indoors and outdoors), and baking.

In her free time, Natasha enjoys hiking and being outside in beautiful areas like the Desolation Wilderness in California.

In her free time, Natasha enjoys hiking and being outside in beautiful areas like the Desolation Wilderness in California. 

Credit: Natasha Sushenko

Additional Information:

For more information on DRI’s Environmental Microbiology Laboratory, please visit: https://www.dri.edu/labs/environmental-microbiology/

For more information on graduate programs at DRI, please visit: https://www.dri.edu/education/graduate-programs/

 

DRI welcomes new graduate students to Reno and Las Vegas campuses

DRI welcomes new graduate students to Reno and Las Vegas campuses

Each year, the Desert Research Institute (DRI) welcomes new graduate students from the University of Nevada, Reno (UNR) and University of Nevada, Las Vegas (UNLV), who work under the direction of DRI faculty on our northern and southern campuses to conduct research across a variety of scientific fields as they pursue their master’s and doctoral degrees. Read below to get to know our new grad students!  


Natasha Sushenko

Natasha Sushenko

Natasha Sushenko
Las Vegas Campus

Natasha Sushenko is originally from Las Vegas, Nevada, and is currently pursuing a M.S. in microbiology at UNLV. At DRI, she is working in the Environmental Microbiology Lab with faculty advisor Duane Moser, Ph.D.

“I’m currently working on a NASA EPSCoR Space Biology project that involves studying strains of Klebsiella pneumoniae, an opportunistic pathogen, that have been isolated from the International Space Station (ISS),” Sushenko said.  “We are growing these strains under simulated microgravity while exposed to the disinfectants used on the ISS, and will later perform metatranscriptomic analysis to evaluate the strains for antimicrobial resistance and virulence gene expression.”

 


Victoria Wuest

Victoria Wuest

Victoria Wuest
Las Vegas Campus 

Victoria Wuest is originally from Las Vegas, Nevada, and is pursuing a M.S. in biological sciences with a concentration in ecology and evolutionary biology at UNLV. At DRI, she is working in the Environmental Microbiology Lab under the direction of Duane Moser, Ph.D. 

“I am working on a project to extract human mtDNA from ancient quids found in Mule Springs Rockshelter in Nevada,” Wuest said. “I am also studying the application and implementation of eDNA of endangered and invasive fish in the warm water springs of Nevada.” 

 

 


Manuel de Cespedes Molina

Manuel de Cespedes Molina

Manuelde Cespedes Molina 
Las Vegas Campus

Manuel de Cespedes Molina is originally from Camaguey, Cuba. He is currently pursuing a Ph.D. in Anthropology at UNLV. At DRI, he is working in the Division of Earth and Ecosystem Sciences under the supervision of Maureen King, M.A. 

“My work at DRI is involved with the Cultural Resource Management Program that supports the National Nuclear Security Administration Nevada Field Office’s historic preservation obligations at the Nevada National Security Site,” de Cespedes Molina said.  

 

 


Marc Berghouse

Marc Berghouse

Marc Berghouse
Reno campus 

Marc Berghouse is originally from Redwood City, Calif., and is currently pursuing a Ph.D. in Hydrology at UNR. At DRI, he is working in the Division of Hydrologic Sciences under the direction of Dr. Rishi Parashar.  

“I will be working on modeling the physics of microbial motility – the ability of a microbe to move through its environment – at the micro and field scales, Berghouse said.  

 

 

 


Anne Heggli

Anne Heggli

Anne Heggli
Reno campus 

Anne Heggli is originally from Cool, Calif., and is pursuing a Ph.D. in Atmospheric Science at UNR. At DRI, she is working under the direction of advisor Ben Hatchett, Ph.D. in the Division of Atmospheric Sciences. 

“I am working on the development of a Snow Runoff Readiness Advisory to provide information regarding the likelihood and magnitude of impactful snowmelt-derived runoff and flooding during extreme weather events,” Heggli said.  

 

 

 


Porraket Dechdacho

Porraket Dechdacho

Porraket (Porra) Dechdacho
Reno campus 

Porra Dechdado is originally from Nakhon Si Thammarat, Thailand. She is currently pursuing a M.S. in hydrogeology at UNR. At DRI, she is working with Dr. Rishi Parashar in the Division of Hydrologic Sciences. 

“I am working on a project to develop and evaluate iron-based strategies for arsenic removal from contaminated groundwater using metal organic framework and iron rich compost,” Dechdado explained. 

 

 

 


Zakaria Jibrin, DEES (Coming soon)