Channel: iBiology

Category: Science & Technology

Description: iBiology.org Unlike most animals, plants don’t have the option to run away when something is trying to eat them. Instead, they develop all kinds of chemical and structural defenses. But these defenses can be energetically costly, and plants’ ability to defend themselves can change over time and with the environment. In her Share Your Research Talk, Dr. Mia Howard discusses how soil microbes can influence defensive traits in goldenrod (Solidago altissima) at various stages of succession. Her work reveals that microbial communities from late succession soils can increase plant resistance to herbivory, and may even make plants less vulnerable to pests. 0:00 Introduction 1:08 Plant Defenses 4:05 Defenses and Succession 6:08 How does the herbivore resistance of a single plant species change over succession? 9:47 How are goldenrods becoming more resistant over succession? 11:42 Characterizing microbial communities 14:49 Microbiome transplant experiment 17:57 Summary Speaker Biography: Mia Howard is an ecologist interested in soil microbes and plant-herbivore interactions. She completed her doctoral research at Cornell University, where she studied the chemical ecology of plant-microbe-insect interactions in native goldenrod (Solidago altissima), and is currently a postdoctoral research fellow at Indiana University. Kevin McLean (iBiology): Producer Brittany Anderton (iBiology): Producer Eric Kornblum (iBiology): Videographer Jiefei Yuan (iBiology): Editor Chris George (iBiology): Graphics Maggie Hubbard (iBiology): Graphics Except where otherwise noted, this work is licensed under creative commons.org/licenses/by-nc-nd/4.0 © 2007-2021 Science Communication Lab™. All rights reserved.