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Plants use a blend of external influences to evolve defense mechanisms

Plants use a blend of external influences to evolve defense mechanisms
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Tracking a tuber s travails: Scientists tap into potatoes under stress

Leaves of a control potato plant (L) and a genetically engineered one. (Courtesy, Shilo Rosenwasser) Scientists at Jerusalem’s Hebrew University have managed to genetically engineer a potato to glow in a particular color when it is feeling under the weather. Like humans, plants suffer stress if it is too hot or cold, or if they don’t get enough food or water. New research published in Plant Physiology by Matanel Hipsch under the direction of Dr. Shilo Rosenwasser of the university’s Department of Plant Sciences describes the implanting of a gene with a fluorescent protein that changes color according to the level of free radicals oxygen-containing molecules that accumulate when an organism is experiencing stress. High levels of free radicals can cause significant damage. The fluorescent signaling is picked up by a special fluorescent camera.

How micropropogation could make cannabis easier to mass produce

As nurseries and garden centers fill up with spring landscaping plants, home gardeners owe a lot to a technique called micropropagation, which has proven beneficial to many plants — perhaps soon to include cannabis, thanks to work by University of Connecticut researchers in the College of Agriculture, Health and Natural Resources. Micropropagation is a technique used for growing large quantities of new plants from fewer “parent” plants, yielding clones with the same, predictable qualities. The cannabis industry, however, has been largely left out of this beneficial technique, because this species of plant is extremely difficult to micropropagate. Researchers from UConn — including associate professor Jessica Lubell-Brand, Ph.D. student Lauren Kurtz, and professor Mark Brand, in the Department of Plant Science and Landscape Architecture — have worked through some of the challenges of cannabis micropropagation of hemp. Their method was recently published in H

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