Donald L. Smith
Distinguished James McGill Professor in Plant Science at McGill University and CEO of BioFuelNet Canada, known for research on plant–microbe interactions and signaling that improves plant growth and stress resilience.
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Feb 23, 2026 • 42min
853: Getting to the Root of How Microbes Help Plants Thrive Under Stress - Dr. Donald Smith
Dr. Donald L. Smith, a plant scientist at McGill and leader in biofuels research, studies how root microbes signal plants to grow and withstand drought or cold. He discusses microbial signals like LCOs and genistein that boost nodulation and seedling growth, surprising discoveries from field work, and his big plan to map plant–microbe signaling across species.
