In Defense of Plants Podcast

Many of us are aware that planting legumes helps enrich soils but how do they do this? By partnering with bacteria, of course! My guest today studies how this mutualistic relationship evolved and how it is maintained throughout various lineages. Dr. Katy Heath is a plant person at heart and she brings that passion with her to her lab as she tries to understand these evolutionary processes. Join us for a fascinating discussion about this system. This episode was produced in part by Allan, Clifton, Katherina, Shane, Amy, Caitlin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

Ferns and lycophytes have been around for a long time. Still, they often get overshadowed by angiosperms but not in the Sessa lab! Our guest today is Dr. Emily Sessa, an assistant professor at the University of Florida. Her lab focuses on the interrelationships of these two great lineages and even offers the listener a unique opportunity to collaborate. This episode was produced in part by Allan, Katherina, Shane, Amy, Caitlin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

Mosquitoes are maligned the world over and often for very good reason. However, there are a plethora of different species of mosquito on this planet and many of them do not bite humans or spread disease. In fact, some of them are important pollinators. In this episode we take a closer look at an orchid that relies on mosquitoes for pollination. The one leaved rein orchid (Platanthera obtusata) grows in close association with mosquitoes and our guests, postdoc Chloé Lahondère and grad student Ryo Okubo are working hard to understand how this system works. Their research not only helps us understand these overlooked pollinators but also provides deeper insights into how mosquitoes find their food sources. This is a great example of the kind of collaborative science I love!

The 'Ohi'a (Metrosideros polymorpha) is the dominant tree on the Hawai'ian Archipelago and it is under attack by two different species of invasive fungi. Trying to understand and combat the spread of these pathogens is one of the main focuses of our guest, Dr. James B. Friday. Together with multiple different stakeholders, they are trying to understand how these fungi got to the island and what can be done to protect Hawai'i's most famous tree. Allan, Shane, Amy, Caitlin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

Our guest today is Dr. Karl Niklas. His work utilizes mathematics to explain plant growth and form in relation to four basic physical constraints: 1) Plants have to capture sunlight and avoid shading their own leaves, 2) Plants have to support themselves structurally, 3) Plants have to conduct water to their various tissues, and 4) Plants must be able to reproduce effectively. Using these basic constraints, Dr. Niklas builds mathematical simulations of plant evolution. Join us for a fascinating dive into the biophysical world of plant evolution. This episode was produced in part by Allan, Shane, Amy, Caitlin, Rosanna, Daniel, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

I am back in Illinois and I met up with my good friend Steve (co-host of The Field Guides Podcast) to wax poetic about summer botanizing. Steve has spent most of his summer exploring Illinois while I have been busying myself in the southern Appalachian Mountains. We bring a lot of interesting species to the table in this episode, each with its own memorable experience. This episode was produced in part by Allan, Amy, Caitlin, Rosanna, Daniel, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

Today we are continuing our conversation with Dr. James Costa. This week, we take a deeper look at the life of Alfred Russel Wallace, a man who independently began developing a theory of evolution. You will find out why we hardly remember Wallace for his contributions to this fascinating world of science and inquiry. This is a different kind of discussion than we normally have here at In Defense of Plants but I think it is important to humanize the sciences every now and then. This episode was produced in part by Allan, Amy, Caitlin, Rosanna, Daniel, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

For Dr. James Costa, a love of biology started early. It eventually evolved into a career studying social insects and their interactions with plants. It also evolved into a passion for the history of science, specifically that of evolutionary theory. Dr. Costa wears many hats and you will hear about some of them in part one of this two part episode! This episode was produced in part by Allan, Amy, Caitlin, Rosanna, Daniel, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.

Today we are talking about one of my favorite subjects - old growth forests. Joining us is Dr. Beverly Collins, an associate professor at Western Carolina University. Her work looks at the dynamics of old growth forests, especially as it relates to disturbances. She is especially curious about the role disturbance plays in the survival of understory herbs. This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, Mary Jane, Amy, and Caitlin.

In this episode, In Defense of Plants is going back in time a bit to my visit to San Francisco. What you are about to hear is a tour of Tilden Park's wonderful botanical garden whose purpose is the collection, growth, display, and preservation of the native plants of California. This was easily one of the most impressive living collections I have ever seen. The tour was led by none other than Bart O'Brien, who has been placed in charge of this amazing place. If you head on over to www.indefenseofplants.com/podcast you can find the photo album that accompanies this trip. This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, Mary Jane, Amy, and Caitlin.

Restoration ecology is a topic near and dear to my heart. The idea of nursing the land back to health is something we all must rally behind. Plants are at the center of this practice and our guest today has devoted his career to understanding both plant diversity and how to restore their populations following human disturbance. Joining us from western Australia is Dr. Kingsley Dixon. Restoration is quite challenging in this harsh landscape but the lessons Dr. Dixon has learned over the years is being used to improve restoration projects around the globe. This is one episode you do not want to miss! This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, Mary Jane, and Caitlin.

Plants have interesting sex lives. In this episode we take a closer look at reproduction in the mosses, in particular, a species known as fire moss. Joining us to talk about a particularly interesting version of this is Leslie Kollar, a PhD student at the University of Florida. Her work is fascinating and this is one episode you don't want to miss! This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, and Mary Jane. 

You have all probably seen them, however, many probably don't realize what they are. Leaf miners are any sort of arthropod that lives part or all of its life nestled in the tissues of a leaf. This is an amazing world that desperately need more attention. That's where people like Charley Eiseman come in. Charley has devoted much of his free time to trying to better understand the leaf miners of North America. Along the way he has made some exciting discoveries, describing new species in his own back yard! Join us for a riveting about the micro world. This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, and Mary Jane.

Trying to piece together an accurate picture of past ecosystems requires a lot of patience and attention to detail. That is why I am so amazed by the work of today's guest. Joining us is paleoecologist Dr. Jacquelyn Gill to talk about her work on ice age ecology. The clues she uses to tell the story of these systems are surprisingly small but incredibly useful. What's more, her work can help us better understand how ecosystems are going to change as man-made climate change rages on. This is one episode you don't want to miss! This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, and Mary Jane.

Joining us today from Harvard University is Dr. Charles Davis. His lab focuses on elucidating the phylogenetic relationships among the plants of the world. One of his most exciting projects revolves around a genus of plants known as Rafflesia, which is famous the world over for producing the largest single flower on this planet. Join us for a wonderfully enlightening conversation about taxonomy. This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, and Mary Jane.