A Membrane-Anchored Protein Kinase Involved in <i>Brassica</i> Self-Incompatibility Signaling

DOI Web Site 被引用文献27件
  • Kohji Murase
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
  • Hiroshi Shiba
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
  • Megumi Iwano
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
  • Fang-Sik Che
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
  • Masao Watanabe
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
  • Akira Isogai
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
  • Seiji Takayama
    Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.

抄録

<jats:p> Self-incompatibility (SI) response in <jats:italic>Brassica</jats:italic> is initiated by haplotype-specific interactions between the pollen-borne ligand <jats:italic>S</jats:italic> locus protein 11/SCR and its stigmatic <jats:italic>S</jats:italic> receptor kinase, SRK. This binding induces autophosphorylation of SRK, which is then thought to trigger a signaling cascade that leads to self-pollen rejection. A recessive mutation of the <jats:italic>modifier</jats:italic> ( <jats:italic>m</jats:italic> ) gene eliminates the SI response in stigma. Positional cloning of <jats:italic>M</jats:italic> has revealed that it encodes a membrane-anchored cytoplasmic serine/threonine protein kinase, designated <jats:italic>M</jats:italic> locus protein kinase (MLPK). Transient expression of MLPK restores the ability of <jats:italic>mm</jats:italic> papilla cells to reject self-pollen, suggesting that MLPK is a positive mediator of <jats:italic>Brassica</jats:italic> SI signaling. </jats:p>

収録刊行物

  • Science

    Science 303 (5663), 1516-1519, 2004-03-05

    American Association for the Advancement of Science (AAAS)

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