in vitro

Micropropagation; plant tissues grown on nutritional medium in a sterile humid glass or plastic container.

Cryopreserving Endangered Plants and Seeds

Although many rare plants have seeds that can be stored by conventional methods, not all species have seeds that can live after drying or freezing. Sometimes called “Exceptional plants, ” these species have a wide range of variation. Some produce few or no seeds, thus they cannot be seed banked, others have seeds or spores […]

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In Vitro Seed Germination and Seedling Development of Spiranthes Casei for Ex Situ Conservation

Screenshot from In Vitro Seed Germination and Seedling Development of Spiranthes Casei for Ex Situ Conservation video

Peter Zale and Matt Taylor, Longwood Gardens Several species of Spiranthes native to the Eastern U.S. are considered rare, threatened or endangered by federal and state agencies. Using the Pennsylvania endangered Spiranthes casei as a model species, experiments were designed to determine optimal conditions for in vitro seed germination and seedling development. Seeds were collected […]

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