Noncanonical Function of a Small-Molecular Virulence Factor Coronatine against Plant Immunity: An <i>In Vivo</i> Raman Imaging Approach

DOI Web Site Web Site 被引用文献10件 参考文献47件 オープンアクセス
  • Minoru Ueda
    Department of Chemistry, Tohoku University, 6-3 Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
  • Syusuke Egoshi
    Department of Chemistry, Tohoku University, 6-3 Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
  • Kosuke Dodo
    Synthetic Organic Chemistry Laboratory, RIKEN, Hirosawa, Wako, Saitama, 351-0198, Japan
  • Yasuhiro Ishimaru
    Department of Chemistry, Tohoku University, 6-3 Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
  • Hiroyuki Yamakoshi
    Synthetic Organic Chemistry Laboratory, RIKEN, Hirosawa, Wako, Saitama, 351-0198, Japan
  • Takeshi Nakano
    RIKEN Center for Sustainable Resource Science, Hirosawa, Wako, Saitama, 351-0198, Japan
  • Yousuke Takaoka
    Department of Chemistry, Tohoku University, 6-3 Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
  • Shinya Tsukiji
    Frontier Research Institute for Materials Science (FRIMS), Department of Life Science and Applied Chemistry, Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
  • Mikiko Sodeoka
    Synthetic Organic Chemistry Laboratory, RIKEN, Hirosawa, Wako, Saitama, 351-0198, Japan

書誌事項

公開日
2017-05-04
資源種別
journal article
権利情報
  • http://pubs.acs.org/page/policy/authorchoice_termsofuse.html
DOI
  • 10.1021/acscentsci.7b00099
公開者
American Chemical Society (ACS)

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説明

[Image: see text] Coronatine (1), a small-molecular virulence factor produced by plant-pathogenic bacteria, promotes bacterial infection by inducing the opening of stomatal pores, the major route of bacterial entry into the plant, via the jasmonate-mediated COI1-JAZ signaling pathway. However, this pathway is also important for multiple plant functions, including defense against wounding by herbivorous insects. Thus, suppression of the COI1-JAZ signaling pathway to block bacterial infection would concomitantly impair plant defense against herbivorous wounding. Here, we report additional, COI1-JAZ-independent, action of 1 in Arabidopsis thaliana guard cells. First, we found that a stereoisomer of 1 regulates the movement of Arabidopsis guard cells without affecting COI1-JAZ signaling. Second, we found using alkyne-tagged Raman imaging (ATRI) that 1 is localized to the endoplasmic reticulum (ER) of living guard cells of Arabidopsis. The use of arc6 mutant lacking chloroplast formation was pivotal to circumvent the issue of autofluorescence during ATRI. These findings indicate that 1 has an ER-related action on Arabidopsis stomata that bypasses the COI1-JAZ signaling module. It may be possible to suppress the action of 1 on stomata without impairing plant defense responses against herbivores.

収録刊行物

  • ACS Central Science

    ACS Central Science 3 (5), 462-472, 2017-05-04

    American Chemical Society (ACS)

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