Researchers at the University of Tennessee’s Institute of Agriculture have isolated a novel promoter sequence from Populus that is highly, yet broadly inducible by high temperatures (40ºC), low temperatures (0ºC), drought, and flooding. This promoter sequence has been cloned, and when expressed in Arabidopsis, has been shown to induce reporter gene function in all tissue types tested (root, leaf, seed pot and flower). Experiments are currently underway to test this promoter sequence in several other economically important crops.
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