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  1. No Access

    Article

    Interannual and spatial variation in small zooplankton off Vincennes Bay, East Antarctica

    Although small zooplankton are an important component of both the classical food web and microbial loop, fundamental information about small zooplankton in the Southern Ocean is lacking. This study presents th...

    Aiko Tachibana, Yuri Ohkubo, Kohei Matsuno, Keigo D. Takahashi… in Polar Biology (2023)

  2. No Access

    Article

    A type 2C protein phosphatase activates high-affinity nitrate uptake by dephosphorylating NRT2.1

    The nitrate transporter NRT2.1, which plays a central role in high-affinity nitrate uptake in roots, is activated at the post-translational level in response to nitrogen (N) starvation1,2. However, the critical e...

    Yuri Ohkubo, Keiko Kuwata, Yoshikatsu Matsubayashi in Nature Plants (2021)

  3. Article

    Open Access

    Shoot-to-root mobile CEPD-like 2 integrates shoot nitrogen status to systemically regulate nitrate uptake in Arabidopsis

    Plants modulate the efficiency of root nitrogen (N) acquisition in response to shoot N demand. However, molecular components directly involved in this shoot-to-root communication remain to be identified. Here,...

    Ryosuke Ota, Yuri Ohkubo, Yasuko Yamashita, Mari Ogawa-Ohnishi… in Nature Communications (2020)

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  4. No Access

    Article

    Shoot-to-root mobile polypeptides involved in systemic regulation of nitrogen acquisition

    Plants uptake nitrogen (N) from the soil mainly in the form of nitrate. However, nitrate is often distributed heterogeneously in natural soil. Plants, therefore, have a systemic long-distance signalling mechan...

    Yuri Ohkubo, Mina Tanaka, Ryo Tabata, Mari Ogawa-Ohnishi… in Nature Plants (2017)