BZU2/ZmMUTEの核コンデンサートは,トウモロコシの口腔複合体の構造的異質性を実現するために転写を調節します

Xin Qiao¹, Jingjing Xing¹, Bolun Meng¹

¹State Key Laboratory of Crop Stress Adaptation and Improvement, The Zhongzhou Laboratory for Integrative Biology, School of Life Sciences, Henan University, Kaifeng 475004, China.

The Plant cell

|February 20, 2026

まとめ

トウモロコシの転写因子BZU2/ZmMUTEは,液体-液体相分離により,口腔の発達における細胞多様性を促進する. その性質は,細胞タイプ特異的な調節を指揮し,複雑な口腔形態学を可能にします.

科学分野:

植物生物学植物生物学
分子生物学は分子生物学である.
遺伝学遺伝学とは

背景:

細胞運命の決定は,転写因子 (TFs) に依存しています.
開発の多様性に対するTFの貢献を理解することは極めて重要です.
トウモロコシの口腔の発達には,複雑なTF相互作用が伴う.

研究の目的:

トウモロコシの口腔複合体の異質性におけるBZU2/ZmMUTEの役割を調査する.
BZU2/ZmMUTE機能のメカニズムを明らかにし,その液体-液体相分離 (LLPS) プロパティを含む.

主な方法:

遺伝子型分析について
単細胞RNA配列決定 (scRNA-seq) について
本質的に無秩序な領域 (IDRs) の分析

主要な成果:

ZmMUTEは,4細胞の口腔複合体における機能的および空間的異質性を駆動する.
ZmMUTEの本質的に乱れた領域4 (IDR4) は,凝縮物形成を促進し,ZmSCRMを勧誘する.
ZmMUTEコンデンサートはDNA結合と標的遺伝子の活性化を強化し,ガード細胞と補助細胞の発達に影響を与えます.
IDR4は,MUTEに細胞間移動性を保ちます.

結論:

ZmMUTEのダイナミックな行動は,LLPSを介して,トウモロコシの口腔発達における細胞タイプ特異的な調節をオーケストラ化します.
このメカニズムは,ユニークな4細胞の口腔形状の出現を可能にします.
IDR4は,植物発達の過程で,TFの移動性と機能に保存された役割を果たします.

キーワード:

BZU2/ZmMUTE BZU2/ZmMUTE BZU2/ZmMUTE BZU2/ZmMUTE BZU2/ZmMUTE BZU2/ZmMUTE BZU2/ZmMUTE トウモロコシトウモロコシステージセパレーション・フェーズ分離口腔の発達についてトランスクリプションダイナミックな行動

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