FERONIAはペクチンと酸化窒素による男性と女性の相互作用を制御する
Qiaohong Duan1,2, Ming-Che James Liu1,3, Daniel Kita1,4,5
1Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA, USA.
Nature
|March 28, 2020
まとめ
FERONIA受容体キナーゼは,花粉管の引き寄せを制御することによって,アラビドプシスの多精子症を防ぐ. 細胞壁の特定の状態を維持し,最初の精子が卵を受精した後,窒素酸化物を使用して 化学吸引剤をブロックします.
科学分野:
- 植物の繁殖
- セルラー信号
- 分子生物学
背景:
- 性繁殖には 多精子症の予防が必要です
- 花の植物は花粉管を使って 精子を運びます
- FERONIA受容体キナーゼは,精子の配送を促進し,多精子症を阻害することが知られている.
研究 の 目的:
- FERONIAがアラビドプシスの多精子症を防ぐメカニズムを明らかにする.
- FERONIAが雌性ゲメトファイト環境を制御し 過剰な花粉管を遮断する方法を理解するためです
主な方法:
- 糸状器官におけるペクチン構造の維持におけるフェロニアの役割を調査した.
- 花粉管の到着時に状装置で窒素酸化物の蓄積を分析した.
- 化学吸引剤LURE1に対する窒素酸化物の効果を調べた.
主要な成果:
- FERONIAは, filiform装置での脱エステル化ペクトンの維持に不可欠です.
- FERONIAに依存する窒素酸化物の蓄積を誘発する.
- 酸化窒素はLURE1を窒素化し,その分泌と受容体の相互作用を阻害し,引き寄せを減少させます.
結論:
- FERONIAは多精子症を防ぐために受精後の反応を指揮する.
- 最初の花粉管の到来は 卵子に変化をもたらし 他の卵子を 引き寄せるのを止めます
- このメカニズムは,窒素酸化物による化学誘導体シグナル伝達を変化させることで単発受精を保証します.
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