首页|Harnessing root-foraging capacity to improve nutrient-use efficiency for sustainable maize production
Harnessing root-foraging capacity to improve nutrient-use efficiency for sustainable maize production
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NSTL
Elsevier
? 2022Producing more food with less input is imperative in feeding the increasing world population. Here, for the first time we characterize the multipartite responses of maize to nutrient-rich patches and demonstrate significant synergistic effects between root morphological and physiological responses on improving nutrient-use efficiency and yield. Our results showed that maize root length, lateral root formation, acid phosphatase (APase) secretion, and expression of ammonium transporter genes increased in the ammonium-containing patches; moreover, ammonium-induced rhizosphere acidification enhanced activity of APase. These root responses were associated with improved maize nutrition and growth even with reduced fertilizer input, suggesting an adaptive benefit of synergistic root foraging strategies. These new findings improve our understanding of root-foraging responses to nutrient-specific cues and are crucial for engineering root and rhizosphere properties to improve nutrient-use efficiency for sustainable crop production.
Department of Biological Sciences University of Alberta
Department of Plant Nutrition College of Resources and Environmental Sciences National Academy of Agriculture Green Development Key Laboratory of Plant-Soil Interactions Ministry of Education China Agricultural University
Center for Crop Management & Farming System Institute of Crop Sciences Chinese Academy of Agricultural Sciences
Soil Science & Plant Nutrition UWA School of Agriculture and Environment The University of Western Australia
NSTL
Elsevier
