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Return of the dead: How resurrection plants come back to life

sotMost plants die when they dry out, but resurrection plants are an exception to this rule. Resurrection plants can lose almost all their water and then come back to life when they are watered again. We call these plants “desiccation tolerant,” because they can survive near-complete desiccation (drying). In fact, most plants are desiccation tolerant at the seed stage, but only a few plants also have desiccation-tolerant leaves, stems, and roots. Desiccation tolerance might seem like the ultimate plant super power, but there are some challenges associated with being a resurrection plant. Plants have a vascular system, kind of like we do. When resurrection plants resurrect, they need to restore water flow through their vascular system. My collaborators and I used high-resolution CT scans (x-rays) to see inside the plants while they were resurrecting. Our results show that these resurrection plants have several special traits that help them restore water flow through their vascular system.

Speaker: Helen Holmlund, UC Santa Cruz

Monday, 11/11/19

Contact:

Website: Click to Visit

Cost:

Free

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