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Defensin-like polypeptide LUREs are pollen tube attractants secreted from synergid cells

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  • Satohiro Okuda

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Hiroki Tsutsui

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Keiko Shiina

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Stefanie Sprunck

    (Cell Biology/Plant Physiology, University of Regensburg, Universitätsstraße 31)

  • Hidenori Takeuchi

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Ryoko Yui

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Ryushiro D. Kasahara

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Yuki Hamamura

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Akane Mizukami

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Daichi Susaki

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Nao Kawano

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Takashi Sakakibara

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Shoko Namiki

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Kie Itoh

    (Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan)

  • Kurataka Otsuka

    (Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Motomichi Matsuzaki

    (Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Hisayoshi Nozaki

    (Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Tsuneyoshi Kuroiwa

    (Research Information Center of Extremophile, Graduate School of Science, Rikkyo (Saint Paul’s) University, Nishi-Ikebukuro, Tokyo 171-8501, Japan)

  • Akihiko Nakano

    (Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
    Molecular Membrane Biology Laboratory, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan)

  • Masahiro M. Kanaoka

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Thomas Dresselhaus

    (Cell Biology/Plant Physiology, University of Regensburg, Universitätsstraße 31)

  • Narie Sasaki

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

  • Tetsuya Higashiyama

    (Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan)

Abstract

Floral attraction: elusive pollen-tube attractant identified Precise pollen tube guidance is critical for the successful fertilization of flowering plants. The concept of a pollen tube attractant was proposed in the late nineteenth century when pollen tubes were found to grow towards excised pistil tissues on medium. In 2001 the synergid cells, situated next to the egg, were shown to secrete a soluble factor that guides the growing pollen tube towards the embryo sac. Now at long last, these pollen tube attractants have been identified. Synergid cells were isolated from Torenia fournieri ('wishbone flower') plants, which are unique in having a protruding embryo sac. The secreted guidance factors were identified as cysteine-rich polypeptides belonging to the sub group of defensin-like proteins, and named LUREs.

Suggested Citation

  • Satohiro Okuda & Hiroki Tsutsui & Keiko Shiina & Stefanie Sprunck & Hidenori Takeuchi & Ryoko Yui & Ryushiro D. Kasahara & Yuki Hamamura & Akane Mizukami & Daichi Susaki & Nao Kawano & Takashi Sakakib, 2009. "Defensin-like polypeptide LUREs are pollen tube attractants secreted from synergid cells," Nature, Nature, vol. 458(7236), pages 357-361, March.
    • Handle: RePEc:nat:nature:v:458:y:2009:i:7236:d:10.1038_nature07882
    DOI: 10.1038/nature07882
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    Cited by:

    1. Ronny Völz & William Harris & Heribert Hirt & Yong-Hwan Lee, 2022. "ROS homeostasis mediated by MPK4 and SUMM2 determines synergid cell death," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Zhihua Cheng & Xiaofeng Liu & Shuangshuang Yan & Bin Liu & Yanting Zhong & Weiyuan Song & Jiacai Chen & Zhongyi Wang & Gen Che & Liu Liu & Ao Ying & Hanli Lv & Lijie Han & Min Li & Jianyu Zhao & Junqi, 2023. "Pollen tube emergence is mediated by ovary-expressed ALCATRAZ in cucumber," Nature Communications, Nature, vol. 14(1), pages 1-15, December.

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