Arabidopsis seedlings after recovery from drought stress. Wild type on left, nac016 mutants on right.
Drought is one of the most urgent environmental crises facing the world today. In new work reported in The Plant Cell, scientists from Korea used a genome-wide approach to studying drought tolerance in plants and identified regulatory pathway that can be used to increase drought tolerance.
Regions all over the globe are suffering from severe drought, which threatens crop production worldwide. This is especially worrisome given the need to increase, not just maintain, crop yields to feed the increasing global population.
Over the course of evolution, plants have developed mechanisms to adapt to periods of inadequate water, and as any gardener can tell you, some species are better able to handle drought than others. Accordingly, scientists have invested much effort to understand how plants respond to drought stress and what can be done to increase the drought tolerance of economically important plants.
As Dr. NamChon Paek of Seoul National University in Korea stated, “We all expect that drought will be the major challenge for crop production in the near future. Understanding drought-responsive signaling and the molecular and biochemical mechanisms of drought tolerance in model plants such as Arabidopsis and rice provide new insight into how to develop drought-tolerant crop plants through conventional breeding or biotechnological approaches.”
Read more: Scientists Reveal Underpinnings of Drought Tolerance in Plants
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