Keiki Ishiyama

The Organization of High-Affinity Ammonium Uptake in <i>Arabidopsis</i> Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type Transporters

Lixing Yuan, Dominique Loqué, Soichi Kojima et al. · The Plant Cell · 2007 · 397 citations · Full text

Agriculture, Plant Biology, Plant Sciences +16

Severe reduction in growth rate and grain filling of rice mutants lacking OsGS1;1, a cytosolic glutamine synthetase1;1

Mayumi Tabuchi, Kenjiro Sugiyama, Keiki Ishiyama et al. · The Plant Journal · 2005 · 307 citations

Life Sciences, Genetics, Plant Sciences +11

Additive contribution of AMT1;1 and AMT1;3 to high‐affinity ammonium uptake across the plasma membrane of nitrogen‐deficient Arabidopsis roots

Dominique Loqué, Lixing Yuan, Soichi Kojima et al. · The Plant Journal · 2006 · 258 citations · Full text

Life Sciences, Plant Biology, Plant Sciences +13

Kinetic Properties and Ammonium-dependent Regulation of Cytosolic Isoenzymes of Glutamine Synthetase in Arabidopsis

Keiki Ishiyama, Eri Inoue, Akiko Watanabe‐Takahashi et al. · Journal of Biological Chemistry · 2004 · 195 citations · Full text

Life Sciences, Plant Biology, Plant Sciences +16

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

Dong‐Kyung Yoon, Keiki Ishiyama, Mao Suganami et al. · Nature Food · 2020 · 172 citations

Agriculture, Agronomy, Plant Sciences +17