Transgenic rice overproducing Rubisco exhibits increased yields with improved nitrogen-use efficiency in an experimental paddy field

Dong Kyung Yoon, Keiki Ishiyama, Mao Suganami, Yushi Tazoe, Mari Watanabe, Serina Imaruoka, Maki Ogura, Hiroyuki Ishida, Yuji Suzuki, Mitsuhiro Obara, Tadahiko Mae, Amane Makino

    Research output: Contribution to journalArticlepeer-review

    43 Citations (Scopus)

    Abstract

    The green revolution’s breeding of semi-dwarf rice cultivars in the 1960s improved crop yields, with large increases in the use of nitrogen (N) fertilizer. However, excess N application has caused serious environmental problems, including acid rain and the eutrophication of rivers and oceans. To use N to improve crop yields, while minimizing the associated environmental costs, there is a need to produce crops with higher N-use efficiency and higher yield components. Here we show that transgenic rice overproducing ribulose 1,5-bisphosphate carboxylase–oxygenase (Rubisco)—the key enzyme of photosynthesis—exhibits increased yields with improved N-use efficiency for increasing biomass production when receiving sufficient N fertilization in an experimental paddy field. This field experiment demonstrates an improvement in photosynthesis linked to yield increase due to a higher N-use efficiency in a major crop.

    Original languageEnglish
    Pages (from-to)134-139
    Number of pages6
    JournalNature Food
    Volume1
    Issue number2
    DOIs
    Publication statusPublished - 2020 Feb

    ASJC Scopus subject areas

    • Agronomy and Crop Science
    • Animal Science and Zoology
    • Food Science

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