flg22による局所および全身のカルシウムおよび口腔閉塞反応の活性化は,eATP受容体DORN1によって調節される.
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PubMedで要約を見る
まとめ
この要約は機械生成です。植物受容体DORN1 (核酸に反応しない1) は,細胞外ATP (eATP) を感知するために不可欠です. この研究では,DORN1は,病原体に関連した分子パターンの知覚後に,カルシウムシグナル伝達と口腔閉塞を含む,局所的および全身的な植物防御反応を調節していることが示されています.
科学分野
- 植物免疫
- 植物における分子信号伝達
背景
- 植物は病原体に関連した分子パターン (PAMP) を認識し,防御反応を開始します.
- 細胞外ATP (eATP) は植物におけるシグナル伝達分子として作用する.
- DORN1 (核酸に反応しない1) はeATP受容体キナーゼとして識別される.
研究 の 目的
- eATP受容体DORN1が flg22,PAMPに対する植物反応を媒介する役割を調査する.
- DORN1が 局所的および全身的な 植物防御信号を制御するかどうかを判断する
主な方法
- アラビドプシス・タリアナの苗は,flg22で局所的に処理された.
- 治療された葉と全身葉のeATP濃度が測定された.
- DORN1の発現を減らすためにRNA干渉 (RNAi) が使用された.
- 局所および全身のカルシウム ([Ca2+]cyt) レベルと口腔閉塞が評価されました.
主要な成果
- 局所 flg22 治療は局所および全身葉のeATP レベルを上昇させた.
- 局所および全身 [Ca2+] 細胞のflg22誘発増加を減少させ,破壊した.
- DORN1のノックダウンはまた,flg22に対する局所的および全身的な口腔閉塞反応を弱めた.
結論
- eATP受容体DORN1は,flg22によって誘発される局所的および全身的なカルシウムおよび口腔閉塞反応の活性化において,調節的な役割を果たします.
- この研究は,eATPのシグナル伝達と植物免疫および全身の獲得反応に関する理解を広げています.
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