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    Strategies for engineering improved nitrogen use efficiency in crop plants via redistribution and recycling of organic nitrogen

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    Name:
    Melino et al. 2021 Current Opinions.pdf
    Size:
    758.5Kb
    Format:
    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Melino, Vanessa J. cc
    Tester, Mark A. cc
    Okamoto, Mamoru
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Center for Desert Agriculture
    Plant Science
    The Salt Lab
    Date
    2021-09-22
    Online Publication Date
    2021-09-22
    Print Publication Date
    2022-02
    Embargo End Date
    2022-09-22
    Permanent link to this record
    http://hdl.handle.net/10754/672009
    
    Metadata
    Show full item record
    Abstract
    Global use of nitrogen (N) fertilizers has increased sevenfold from 1960 to 1995 but much of the N applied is lost to the environment. Modifying the temporal and spatial distribution of organic N within the plant can lead to improved grain yield and/or grain protein content for the same or reduced N fertilizer inputs. Biotechnological approaches to modify whole plant distribution of amino acids and ureides has proven successful in several crop species. Manipulating selective autophagy pathways in crops has also improved N remobilization efficiency to sink tissues whilst the contribution of ribophagy, RNA and purine catabolism to N recycling in crops is still too early to foretell. Improved recycling and remobilization of N must exploit N-stress responsive transcriptional regulators, N-sensing or phloem-localized promotors and genetic variation for N-responsive traits.
    Citation
    Melino, V. J., Tester, M. A., & Okamoto, M. (2022). Strategies for engineering improved nitrogen use efficiency in crop plants via redistribution and recycling of organic nitrogen. Current Opinion in Biotechnology, 73, 263–269. doi:10.1016/j.copbio.2021.09.003
    Sponsors
    We thank King Abdullah University of Science and Technology (KAUST) for funding this work. We also thank the ARC Industrial Transformation Research Hub for Wheat in a Hot and Dry Climate at the Waite Research Institute of the University of Adelaide.
    Publisher
    Elsevier BV
    Journal
    Current Opinion in Biotechnology
    DOI
    10.1016/j.copbio.2021.09.003
    PubMed ID
    34560475
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0958166921001683
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.copbio.2021.09.003
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Center for Desert Agriculture

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