Marilyn Roossinck's guest appearances

Marilyn Roossinck

Finding Genius Podcast

Progress, Potential, and Possibilities

Kevin Outterson

Brian Keating

Eli Lilly

Ben Novak

Judith Campisi

Azra Raza

Michael Levin

Johns Hopkins

Ashani Weeraratna

Maria Elena Bottazzi

Jonna Mazet

Eleftherios Mylonakis

Cory Kidd

Paramjit Chopra

Charles C.J

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Dr. Marilyn Roossinck Ph.D. (https://plantpath.psu.edu/directory/mjr25) is Professor Emeritus of plant pathology, environmental microbiology and biology at Penn State University. Dr. Roossinck is an expert on viruses, from their evolutionary pressures and mechanisms, to the ecology of viral diseases. She performed some of the first experimental evolution studies on plant viruses and pioneered the first virus discovery work in a terrestrial system, by deep sequencing wild plant samples. A specialty of hers is the symbiotic relationships between plants and so-called “beneficial viruses.” Dr. Roossinck completed her undergraduate work at the University of Colorado, Boulder, receiving a biology degree in 1982. Four years later, she earned her doctorate in microbiology and immunology from the University of Colorado School of Medicine. Dr. Roossinck joined Penn State as professor of plant pathology and environmental microbiology and of biology in 2011, holding appointments in the College of Agricultural Sciences and the Eberly College of Science. She taught courses in virus ecology for several years at Penn State, and also has published both a popular press book about viruses entitled "Virus: An Illustrated Guide to 101 Incredible Microbes" as well as the academic text "Plant Virus Evolution".Support the show

Dr. Marilyn Roossinck Ph.D. (<a href="https://plantpath.psu.edu/directory/mjr25" rel="nofollow" target="_blank">https://plantpath.psu.edu/directory/mjr25</a>) is Professor Emeritus of plant pathology, environmental microbiology and biology at Penn State University. Dr. Roossinck is an expert on viruses, from their evolutionary pressures and mechanisms, to the ecology of viral diseases. She performed some of the first experimental evolution studies on plant viruses and pioneered the first virus discovery work in a terrestrial system, by deep sequencing wild plant samples. A specialty of hers is the symbiotic relationships between plants and so-called “beneficial viruses.” Dr. Roossinck completed her undergraduate work at the University of Colorado, Boulder, receiving a biology degree in 1982. Four years later, she earned her doctorate in microbiology and immunology from the University of Colorado School of Medicine. Dr. Roossinck joined Penn State as professor of plant pathology and environmental microbiology and of biology in 2011, holding appointments in the College of Agricultural Sciences and the Eberly College of Science. She taught courses in virus ecology for several years at Penn State, and also has published both a popular press book about viruses entitled "Virus: An Illustrated Guide to 101 Incredible Microbes" as well as the academic text "Plant Virus Evolution".<a href="https://www.buzzsprout.com/1531799/support" rel="payment nofollow" target="_blank">Support the show</a>

Dr. Marilyn Roossinck, Ph.D. - Beneficial Viruses - Professor Emeritus, Penn State University

Professor and virologist Marilyn J. Roossinck describes her work and interesting elements of  virus behavior.  She tells listeners   Why plant  viruses became the focus of her research, What she’s learned about the host impact on  virus diversity, and How her work on persistent plant  viruses has changed how she conceives of the larger virus community.  Marilyn J. Roossinck, Ph.D. is a professor in plant pathology and environmental microbiology and biology. She’s at the Center for Infectious Disease Dynamics at the Huck Institute of Life Sciences at Pennsylvania State University.  She describes for listeners how she first became interested in the field of virology and where that interest took her. Because  viruses evolve rapidly, they can be a helpful vehicle for observing evolutionary processes. One of her early studies involved watching virus mutations of RNA viruses, noting the diversity of their populations. She then describes the work she’s done with the cucumber mosaic virus. Because the  virus infects about 1,200 different species, they could compare virus evolution by starting with clones of the cucumber mosaic  virus and see how the exact same virus progressed differently among host plants. Contrary to general thought, they found the virus behavior and diversity was dependent on the host plant.  She discusses some other studies including on a  virus that has coevolved with the jalapeno and other pepper plants and what that plant virus accomplishes for that plant. She also talks about her work on a virus found in fungi that inhabit geothermal soil and viruses in Costa Rican plants. She explains how this work has caused her to think of  viruses differently, as beneficial for the most part. In fact, she says pathogenic  viruses are actually quite rare.  For more about her work, see roossincklab.com.

Professor and virologist Marilyn J. Roossinck describes her work and interesting elements of <a href="https://www.findinggeniuspodcast.com/podcasts/virus-expert-dr-frank-ryan-discuss-behaviors-of-viruses-and-our-coevolution/" rel="nofollow" target="_blank"> virus</a> behavior. She tells listeners  <ul> <li>Why plant <a href="https://www.findinggeniuspodcast.com/podcasts/virus-expert-dr-frank-ryan-discuss-behaviors-of-viruses-and-our-coevolution/" rel="nofollow" target="_blank"> viruses</a> became the focus of her research,</li> <li>What she’s learned about the host impact on <a href="https://www.findinggeniuspodcast.com/podcasts/virus-expert-dr-frank-ryan-discuss-behaviors-of-viruses-and-our-coevolution/" rel="nofollow" target="_blank"> virus</a> diversity, and</li> <li>How her work on persistent plant <a href="https://www.findinggeniuspodcast.com/podcasts/virus-expert-dr-frank-ryan-discuss-behaviors-of-viruses-and-our-coevolution/" rel="nofollow" target="_blank"> viruses</a> has changed how she conceives of the larger virus community.</li> </ul> Marilyn J. Roossinck, Ph.D. is a professor in plant pathology and environmental microbiology and biology. She’s at the Center for Infectious Disease Dynamics at the Huck Institute of Life Sciences at Pennsylvania State University. She describes for listeners how she first became interested in the field of virology and where that interest took her. Because <a href="https://www.findinggeniuspodcast.com/podcasts/virus-expert-dr-frank-ryan-discuss-behaviors-of-viruses-and-our-coevolution/" rel="nofollow" target="_blank"> viruses</a> evolve rapidly, they can be a helpful vehicle for observing evolutionary processes. One of her early studies involved watching virus mutations of RNA viruses, noting the diversity of their populations. She then describes the work she’s done with the cucumber mosaic virus. Because the <a href="https://www.findinggeniuspodcast.com/podcasts/virus-expert-dr-frank-ryan-discuss-behaviors-of-viruses-and-our-coevolution/" rel="nofollow" target="_blank"> virus</a> infects about 1,200 different species, they could compare virus evolution by starting with clones of the cucumber mosaic <a href="https://www.findinggeniuspodcast.com/podcasts/bacteria-and-virus-interactions-understanding-microbes-with-alejandro-reyes-munoz/" rel="nofollow" target="_blank"> virus</a> and see how the exact same virus progressed differently among host plants. Contrary to general thought, they found the virus behavior and diversity was dependent on the host plant.  She discusses some other studies including on a <a href="https://www.findinggeniuspodcast.com/podcasts/bacteria-and-virus-interactions-understanding-microbes-with-alejandro-reyes-munoz/" rel="nofollow" target="_blank"> virus</a> that has coevolved with the jalapeno and other pepper plants and what that plant virus accomplishes for that plant. She also talks about her work on a virus found in fungi that inhabit geothermal soil and viruses in Costa Rican plants. She explains how this work has caused her to think of <a href="https://www.findinggeniuspodcast.com/podcasts/bacteria-and-virus-interactions-understanding-microbes-with-alejandro-reyes-munoz/" rel="nofollow" target="_blank"> viruses</a> differently, as beneficial for the most part. In fact, she says pathogenic <a href="https://www.findinggeniuspodcast.com/podcasts/bacteria-and-virus-interactions-understanding-microbes-with-alejandro-reyes-munoz/" rel="nofollow" target="_blank"> viruses</a> are actually quite rare.  For more about her work, see <a href="https://roossincklab.com/" rel="nofollow" target="_blank">roossincklab.com</a>.

Virus Diversity Dependent on Host: Marilyn Roossinck Discusses Her Research