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

17 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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