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  • 2021 Cozzarelli Prize recipients | PNAS Updates | PNAS

    Abstract

    Nearly one-fifth of nitrogen fertilizers produced in factories worldwide is consumed by wheat farming. Nitrification, a process triggered by fertilizer use, can harm soil fertility and ecosystems. Although synthetic inhibitors can reduce soil nitrification, their use is limited by high cost and low efficacy in tropical environments. The authors uncovered a genomic segment in wild grass (Leymus racemosus) encoding the production of biological nitrification inhibitors from plant roots. Transferring the segment into high-yielding wheat varieties nearly doubled their ability to block nitrification. The transfer also increased nitrogen uptake and grain yield in some varieties. Genetically endowing wheat with the ability to block nitrification might help combat nitrogen pollution without affecting yield or coveted agronomic attributes..

    Source From: https://www.pnas.org/post/update/2021-cozzarelli-prize-recipients

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