Downy mildew病抑制土壌が保護的なコアマイクロバイオームを葉圏に伝達する
Jelle Spooren1, Yadong Shao1, Tilda Tarrant1
1Department of Biology, Plant-Microbe Interactions Institute of Environmental Biology Science4Life, Utrecht University, 3584, CH, Utrecht, The Netherlands.
The ISME journal
|February 11, 2026
まとめ
Downy mildew病に感染した植物は、病気抑制性の土壌マイクロバイオームを発達させる。この土壌由来の遺産は、保護的な葉の微生物を伝達し、植物の抵抗力を高め、葉圏を主要なマイクロバイオーム集合ハブとして明らかにする。
科学分野:
- 植物と病原体の相互作用
- マイクロバイオーム集合
- 植物免疫
背景:
- 植物は病原体攻撃と戦うために病気抑制性土壌マイクロバイオームを利用します。
- Hyaloperonospora arabidopsidis(Hpa)に感染したArabidopsis thalianaは、後続の作物で抵抗力を高める土壌由来の遺産(SBL)を発達させます。
- Hpa関連微生物叢(HAM)は、植物の葉圏で濃縮され、病原体の増殖を抑制します。
主な方法:
- 複数の実験にわたるHpa感染Arabidopsis thalianaの葉圏微生物叢を特徴づけました。
- 病気圧下でのde novo HAM集合を研究するために、gnotobiotic Hpa胞子を使用しました。
- SBL処理された植物からの葉の洗い流しの病気抑制能力を評価しました。
結論:
- 病気抑制性土壌は、保護的なコアマイクロバイオームを葉圏に伝達します。
- 植物が駆動する地下と地上のマイクロバイオーム集合の間の重要なリンクを強調します。
- 葉圏は、病気抑制性土壌マイクロバイオーム集合の中心的なハブとして機能します。
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