In Defense of Plants

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Ep. 390 - Pinosaur Revisited

October 9, 2022

The Wollemi pine is one of the world's rarest trees. These mysterious gymnosperms was unknown to science until 1994. Their discovery made headlines around the globe. My guest today, Dr. Heidi Zimmer, has the distinct honor of working with this wonderful species. Join us for a conversation all about Wollemia nobilis. This episode was produced in part by Caelan, Tom, Don, Susan, Corbin, Keena, Robin, Peter, Whitney, Kenned, Margaret, Daniel, Karen, David, Earl, Jocelyn, Gary, Krysta, Elizabeth, Southern California Carnivorous Plant Enthusiasts, Pattypollinators, Peter, Judson, Ella, Alex, Dan, Pamela, Peter, Andrea, Nathan, Karyn, Michelle, Jillian, Chellie, Linda, Laura, Miz Holly, Christie, Carlos, Paleo Fern, Levi, Sylvia, Lanny, Ben, Lily, Craig, Sarah, Lor, Monika, Brandon, Jeremy, Suzanne, Kristina, Christine, Silas, Michael, Aristia, Felicidad, Lauren, Danielle, Allie, Jeffrey, Amanda, Tommy, Marcel, C Leigh, Karma, Shelby, Christopher, Alvin, Arek, Chellie, Dani, Paul, Dani, Tara, Elly, Colleen, Natalie, Nathan, Ario, Laura, Cari, Margaret, Mary, Connor, Nathan, Jan, Jerome, Brian, Azomonas, Ellie, University Greens, Joseph, Melody, Patricia, Matthew, Garrett, John, Ashley, Cathrine, Melvin, OrangeJulian, Porter, Jules, Griff, Joan, Megan, Marabeth, Les, Ali, Southside Plants, Keiko, Robert, Bryce, Wilma, Amanda, Helen, Mikey, Michelle, German, Joerg, Cathy, Tate, Steve, Kae, Carole, Mr. Keith Santner, Lynn, Aaron, Sara, Kenned, Brett, Jocelyn, Ethan, Sheryl, Runaway Goldfish, Ryan, Chris, Alana, Rachel, Joanna, Lori, Paul, Griff, Matthew, Bobby, Vaibhav, Steven, Joseph, Brandon, Liam, Hall, Jared, Brandon, Christina, Carly, Kazys, Stephen, Katherine, Mohsin Kazmi Takes Pictures, Manny, doeg, Daniel, Tim, Philip, Tim, Lisa, Brodie, Bendix, Irene, holly, Sara, and Margie.

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Ep. 347 - Resisting the Emerald Ash Borer

December 12, 2021

The invasive emerald ash borer has devastated North America's ash trees (genus Fraxinus), but we aren't going to stand by and let it happen. Join Ecologist Dr. Kathleen Knight and me about all the incredible work being done to keep ash from going extinct. This episode was produced in part by Paleo Fern, Levi, Sylvia, Lanny, Ben, Lily, Craig, Sarah, Lor, Monika, Brandon, Jeremy, Suzanne, Kristina, Christine, Silas, Michael, Aristia, Felicidad, Lauren, Danielle, Allie, Jeffrey, Amanda, Tommy, Marcel, C Leigh, Karma, Shelby, Christopher, Alvin, Arek, Chellie, Dani, Paul, Dani, Tara, Elly, Colleen, Natalie, Nathan, Ario, Laura, Cari, Margaret, Mary, Connor, Nathan, Jan, Jerome, Brian, Azomonas, Ellie, University Greens, Joseph, Melody, Patricia, Matthew, Garrett, John, Ashley, Cathrine, Melvin, OrangeJulian, Porter, Jules, Griff, Joan, Megan, Marabeth, Les, Ali, Southside Plants, Keiko, Robert, Bryce, Wilma, Amanda, Helen, Mikey, Michelle, German, Joerg, Cathy, Tate, Steve, Kae, Carole, Mr. Keith Santner, Lynn, Aaron, Sara, Kenned, Brett, Jocelyn, Ethan, Sheryl, Runaway Goldfish, Ryan, Chris, Alana, Rachel, Joanna, Lori, Paul, Griff, Matthew, Bobby, Vaibhav, Steven, Joseph, Brandon, Liam, Hall, Jared, Brandon, Christina, Carly, Kazys, Stephen, Katherine, Mohsin Kazmi Takes Pictures, Manny, doeg, Daniel, Tim, Philip, Tim, Lisa, Brodie, Bendix, Irene, holly, Sara, and Margie.

Learn more about the emerald ash borer

Follow Dr. Knight on Twitter: @KathleenSKnight

Follow the Forest Service Northern Research Station on Twitter: @usfs_nrs

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Ep. 272 - Restoring the American Chestnut

July 5, 2020

This episode is all about the work being done by The American Chestnut Foundation and their partners to save the American chestnut (Castanea dentata) from extinction. Ravaged by an invasive fungal pathogen, this tree went from a dominant species in our forest to a spattering of dwindling stump sprouts barely hanging on in the understories of eastern North American forests. Join me as I sit down with Director of Restoration, Sara Fitzsimmons, to talk about the amazing, multifaceted efforts being put forth to restore this native tree to its former glory. This episode was sponsored by The Great Courses Plus and produced in part by Steve, Kae, Carole, Mr. Keith Santner, Dana, Chloe, Aaron, Sara, Kenned, Vaibhav, Kendall, Christina, Brett, Jocelyn, Kathleen, Ethan, Kaylee, Runaway Goldfish, Ryan, Donica, Chris, Shamora, Alana, Laura, Alice, Sarah, Rachel, Joanna, Griff, Philip, Paul, Matthew, Clark, Bobby, Kate, Steven, Brittney, McMansion Hell, Joey, Catherine, Brandon, Hall, Vegreville Creek and Wetlands Fund, Kevin, Oliver, John, Johansson, Christina, Jared, Hannah, Katy Pye, Brandon, Gwen, Carly, Stephen, Botanical Tours, Moonwort Studios, Liba, Mohsin Kazmi Takes Pictures, doeg, Clifton, Stephanie, Benjamin, Eli, Rachael, Plant By Design, Philip, Brent, Ron, Tim, Homestead Brooklyn, Brodie, Kevin, Sophia, Mark, Rens, Bendix, Irene, Holly, Caitlin, Manuel, Jennifer, Sara, and Margie.

Learn more about The American Chestnut Foundation

Listen to Episode 107 of the In Defense of Plants Podcast to learn more about the chestnut blight

Check out the paper “Medical biotechnology as a paradigm for forest restoration and introduction of the transgenic American chestnut” by Aucott & Parker

Learn more about Andrea’s work

Ep. 232 - The Plight of the Butternut

September 29, 2019

The butternut or white walnut (Juglans cinerea) is a tree that is unknown to many. Ravaged by an invasive fungal blight, this wonderful tree is on the decline throughout eastern North America. If nothing is done to save the butternut, it will likely go extinct. If it does, North America will lose yet another important nut-producing tree. That is where people like Andrea Brennan come in. Andrea and her colleagues are working hard to investigate what can be done to save the butternut from extinction. From hybridization to genetic modification, Andrea's research takes a holistic approach to tree conservation. Join us for an important discussion about the plight of the butternut. This episode was produced in part by Griff, Philip, Paul, Matthew, Clark, Bobby, Kate, Steven, Brittney, McMansion Hell, Joey, Catherine, Brandon, Hall, Vegreville Creek and Wetlands Fund, Kevin, Oliver, John, Johansson, Christina, Jared, Hannah, Katy Pye, Brandon, Gwen, Carly, Stephen, Botanical Tours, Moonwort Studios, Lisa, Liba, Lucas, Mohsin Kazmi Takes Pictures, doeg, Clifton, Stephanie, Benjamin, Eli, Rachael, Anthony, Plant By Design, Philip, Brent, Ron, Tim, Homestead Brooklyn, Brodie, Kevin, Sophia, Brian, Mark, Rens, Bendix, Irene, Holly, Caitlin, Manuel, Jennifer, Sara, and Margie.

Watch our video “The Elusive White Walnut”

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Learn more about her work

Ep. 230 - Cryogenic Conservation

September 15, 2019

Seed banking is an extremely important component of plant conservation but what do you do with seeds that don't store well? A considerable number of plant species produce seeds that die when placed into seed banks. Are these species destined to be lost forever if things go south? Not if my guest can help it. Karin van der Walt is the Conservation and Science Advisor for New Zealand's Otari Native Botanic Garden and she specializes in cryopreservation of some of the rarest trees on our planet. Join us as we discuss what it takes to save trees that don't lend well to being saved! This episode was produced in part by Griff, Philip, Paul, Matthew, Clark, Bobby, Kate, Steven, Brittney, McMansion Hell, Joey, Catherine, Brandon, Hall, Vegreville Creek and Wetlands Fund, Kevin, Oliver, John, Johansson, Christina, Jared, Hannah, Katy Pye, Brandon, Gwen, Carly, Stephen, Botanical Tours, Moonwort Studios, Lisa, Liba, Lucas, Mohsin Kazmi Takes Pictures, doeg, Clifton, Stephanie, Benjamin, Eli, Rachael, Anthony, Plant By Design, Philip, Brent, Ron, Tim, Homestead Brooklyn, Brodie, Kevin, Sophia, Brian, Mark, Rens, Bendix, Irene, Holly, Caitlin, Manuel, Jennifer, Sara, and Margie.

Send Karin an email: Karin.VanderWalt@wcc.govt.nz

Learn more about the New Zealand Plant Conservation Network

Watch a video about cryopreservation

Listen to my episode of Planted: Finding your roots in STEM careers