Jun Inaba
5 Papers
5 Citations
Jun Inaba is an academic researcher. The author has contributed to research in topics: Ammonia & Glutamine synthetase. The author has an hindex of 3, co-authored 3 publications.
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Papers
Repression of Nitrogen Starvation Responses by Members of the Arabidopsis GARP-Type Transcription Factor NIGT1/HRS1 Subfamily
Takatoshi Kiba,Jun Inaba,Toru Kudo,Nanae Ueda,Mineko Konishi,Nobutaka Mitsuda,Yuko Takiguchi,Youichi Kondou,Takeshi Yoshizumi,Masaru Ohme-Takagi,Masaru Ohme-Takagi,Minami Matsui,Kentaro Yano,Shuichi Yanagisawa,Hitoshi Sakakibara +14 more
TL;DR: It is proposed that NIGT1/HRS1s are major regulators of N starvation responses that play an important role in optimizing N acquisition and utilization under fluctuating N conditions.
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Excessive ammonium assimilation by plastidic glutamine synthetase causes ammonium toxicity in Arabidopsis thaliana.
Takushi Hachiya,Jun Inaba,Mayumi Wakazaki,Mayuko Sato,Kiminori Toyooka,Atsuko Miyagi,Maki Kawai-Yamada,Daisuke Sugiura,Tsuyoshi Nakagawa,Takatoshi Kiba,Alain Gojon,Hitoshi Sakakibara +11 more
TL;DR: In this article, it was shown that ammonium assimilation by GLUTAMINE SYNTHETASE 2 (GLN2) localized in the plastid rather than ammonium accumulation is a primary cause for toxicity, which challenges the textbook knowledge.
Glutathione degradation activity of γ‐glutamyl peptidase 1 manifests its dual roles in primary and secondary sulfur metabolism in Arabidopsis
Takehiro Ito,Taisuke Kitaiwa,Kosuke Nishizono,Minori Umahashi,Shunsuke Miyaji,Shin-ichiro Agake,Kana Kuwahara,Tadashi Yokoyama,Shinya Fushinobu,Akiko Maruyama-Nakashita,Ryosuke Sugiyama,Muneo Sato,Jun Inaba,Masami Yokota Hirai,Naoko Ohkama-Ohtsu +14 more
TL;DR: It is suggested that GGP1 and possibly GGP3 play vital roles in both primary and secondary sulfur metabolism, and the GGP-mediated pathway could be a more efficient route for GSH degradation than the GGCT- mediated pathway.
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Excessive assimilation of ammonium by plastidic glutamine synthetase is a major cause of ammonium toxicity in Arabidopsis thaliana
Takushi Hachiya,Takushi Hachiya,Jun Inaba,Mayumi Wakazaki,Mayuko Sato,Kiminori Toyooka,Atsuko Miyagi,Maki Kawai-Yamada,Takatoshi Kiba,Alain Gojon,Hitoshi Sakakibara +10 more
TL;DR: It is shown that ammonium assimilation in plastids rather than ammonium accumulation is a primary cause for toxicity, and application of an alkaline ammonia solution to the toxic ammonium medium efficiently alleviated the ammonium toxicity with a concomitant reduction in shoot acidity.
N2 -Acetylornithine deacetylase functions as a Cys-Gly dipeptidase in the cytosolic glutathione degradation pathway in Arabidopsis thaliana.
Shunsuke Miyaji,Takehiro Ito,Taisuke Kitaiwa,Kosuke Nishizono,Shin-ichiro Agake,Hiroki Harata,Haruna Aoyama,Minori Umahashi,Muneo Sato,Jun Inaba,Shinya Fushinobu,Tadashi Yokoyama,Akiko Maruyama-Nakashita,Masami Yokota Hirai,Naoko Ohkama-Ohtsu +14 more
TL;DR: N2 -Acetylornithine deacetylase functions as a Cys-Gly dipeptidase in the cytosolic glutathione degradation pathway in Arabidopsis thaliana. The enzyme catalyzes the degradation of glutathione and its derivative cysteinylglycine, thereby regulating the cellular glutathione pool and sulfur metabolism.
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