一方のタイプの誘引物質あるいはそのアゴニストで飽和された水溶液中での<i>Aphanomyces cochlioides</i>遊走子の二つの異なるタイプの誘引物質cochliophilin A および<i>N</i>-(<i>E</i>)-feruloyl-4-<i>O</i>-methyldopamineに対する反応，および内生cAMPと遊走子の被誘引行動との重要なリンク

DOI Web Site Web Site 被引用文献2件 参考文献2件
  • Wang Mengcen
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • 高山 智光
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • Kim Dongyeop
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • 崎浜 靖子
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • 田原 哲士
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University
  • 橋床 泰之
    Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University

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タイトル別名
  • Effects of different classes of attractants, cochliophilin A and <i>N</i>-(<i>E</i>)-feruloyl-4-<i>O</i>-methyldopamine, on the response of <i>Aphanomyces cochlioides</i> zoospores in their chemoattraction and activation of motility linked with intracellular cAMP
  • Effects of different classes of attractants, cochliophilin A and N-(E)-feruloyl-4-O-methyldopamine, on the response of Aphanomyces cochlioides zoospores in their chemoattraction and activation of motility linked with intracellular cAMP

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抄録

Cochliophilin A (5-hydroxy-6,7-methylenedioxyflavone, 1) and N-(E)-feruloyl-4-O-methyldopamine (2) are naturally occurring host-specific chemoattractants for Aphanomyces cochlioides zoospores. In a cross-competition assay, compound 1 (4 fmol) applied to diatomite particles clearly attracted A. cochlioides zoospores in an aqueous solution of excessive compound 2 (1×10−6 M) that could mask a concentration gradient of 1 dispersed from the particles. Similarly, 2 (40 fmol) on particles also attracted A. cochlioides zoospores in an aqueous solution of 1 (1×10−6 M). In addition, compound 2 on the particles did not attract the zoospores in an aqueous solution containing 1×10−6 M NADP+, while 1 clearly attracted zoospores in the same solution. These results allowed us to speculate that compounds 1 and 2 do not share receptors. The chemosensory system for 1 is probably for host recognition of A. cochlioides zoospores, while the system for 2 is linked to cell differentiation.

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