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Conserved Binding Sites01:49

Conserved Binding Sites

Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
C4 Pathway and CAM01:27

C4 Pathway and CAM

Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
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Fruit Development, Structure, and Function01:58

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
Cell Signaling in Plants01:25

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Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
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Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development
10:08

Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development

Published on: March 5, 2017

複合葉の発達のための保存された分子枠組み.

Thomas Blein1, Amada Pulido, Aurélie Vialette-Guiraud

  • 1Laboratoire de Biologie Cellulaire, Institut Jean Pierre Bourgin, Institut National de la Recherche Agronomique (INRA), 78026 Versailles Cedex, France.

Science (New York, N.Y.)
|December 20, 2008
PubMed
まとめ
この要約は機械生成です。

NAM/CUC境界遺伝子は,葉の形状の多様性にとって極めて重要です. エウディコットのこれらの遺伝子を抑制すると,葉っぱが少なく,融合し,辺縁の成長が抑制され,葉っぱの発達に影響を及ぼします.

さらに関連する動画

Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging
06:11

Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging

Published on: September 22, 2023

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring
05:22

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring

Published on: January 20, 2023

関連する実験動画

Last Updated: Jun 27, 2026

Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development
10:08

Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development

Published on: March 5, 2017

Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging
06:11

Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging

Published on: September 22, 2023

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring
05:22

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring

Published on: January 20, 2023

科学分野:

  • 植物発達の遺伝学 植物発達の遺伝学
  • 進化生物学の進化生物学について
  • 比較ゲノミクスとは

背景:

  • 葉の形状の多様性は,葉の縁の変異から生じる,例えば,,葉の葉,葉巻などである.
  • これらの多様な葉の構造の形成の基礎となる遺伝的メカニズムは完全に理解されていません.

研究 の 目的:

  • NAM/CUC境界遺伝子の葉の縁の成長と葉の形成における役割を調査する.
  • 異なるエウディコット種におけるこれらの遺伝子の保存された機能を調査する.

主な方法:

  • 遺伝子サイレンシング技術とミュータント分析を用いた.
  • 遠縁のエウディコット4種で実験を行った.

主要な成果:

  • NAM/CUC遺伝子機能の減少は,すべての限界増殖の抑制につながった.
  • より少ない小葉が形成され,既存の小葉が分析された種に溶け込みました.
  • NAM/CUC遺伝子が促進する境界ドメインが特定され,葉巻の分離と形成に二重の役割を果たしました.

結論:

  • NAM/CUC遺伝子は,葉片を区切る境界ドメインを促進し,葉片の縁の発達を制御するために不可欠です.
  • これらの境界ドメインは,ローカル・リーフレット分離と遠隔のリーフレット形成の両方において重要な役割を果たします.
  • 植物におけるこれらの境界の発達的な役割は,動物の発達における境界機能と類似している.