Jan. 23, 2013 — Until now it has not been clear how salt, a scourge to agriculture, halts the growth of the plant-root system. A team of researchers, led by the Carnegie Institution’s José Dinneny and Lina Duan, found that not all types of roots are equally inhibited. They discovered that an inner layer of tissue in the branching roots that anchor the plant is sensitive to salt and activates a stress hormone, which stops root growth. The study, published in the current issue of The Plant Cell, is a boon for understanding the stress response and for developing salt-resistant crops. [ … continue ]
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- “A weed is a plant that is not only in the wrong place, but intends to stay.” - Sara Bonnett Stein, in My Weeds: A Gardener’s Botany, 1988