このページは機械翻訳されています。他のページは英語で表示される場合があります。 View in English

Cucurbita pepo LのCpARF22遺伝子によるリンニン形成と疾患抵抗の調節に関する機能研究

  • 0College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China; Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Gansu Agricultural University, Lanzhou, 730070, China.

|

|

まとめ

この要約は機械生成です。

CpARF22遺伝子は,リグニン含有量を増やすことで,フサリウム枯れ抵抗性を高めます. CpARF22の過剰発現は 植物の防御を強化し 沈黙させることで この破壊的な病気に対する 感受性を高めます

科学分野

  • 植物学
  • 分子生物学
  • 農業科学

背景

  • フサリウムオキシスポラム f. spによって引き起こされるフサリウム枯れ クキュメリヌムは,殻のないクキュルビータ・ペポ L. (裸種子カボチャ) の生産を大きく脅かしている.
  • 殻のないC.ペポの病気に抵抗する遺伝子を特定し理解することは,作物の改善と病気の管理に不可欠です.

研究 の 目的

  • CpARF22遺伝子をクローンし 特徴づけること
  • CpARF22がFusarium wiltに耐性を与える役割を解明する.
  • CpARF22媒介による疾患耐性の基礎となる分子機構を調査する.

主な方法

  • CpARF22の遺伝子クローンとバイオ情報分析
  • アラビドプシス・タリアナの 遺伝子過剰発現による遺伝子変異
  • ウイルスの誘発による遺伝子静止 (VIGS) は,植物における遺伝子静止です.
  • 病原体免疫測定法 病原体免疫測定法
  • 防衛メカニズムを評価するための生化学的分析と遺伝子発現分析.

主要な成果

  • アラビドプシスのCpARF22の過剰発現は,疾患の症状の減少,疾患指数の減少,光合成のパラメータの強化,防御酵素の活動の増加,およびリグニン生物合成の増加につながった.
  • CpARF22の遺伝子静止は,より重度の疾患症状,疾患指数の増加,およびリグニン含有量の減少をもたらしました.
  • CpARF22はIAAタンパク質と相互作用し,その発現は疾患耐性およびリグニン蓄積と正に相関しています.

結論

  • CpARF22遺伝子は,フサリウム枯れに対する耐性を高めることに重要な役割を果たしています.
  • CpARF22は,リンニン生物合成を促進し,植物防御反応を強化することによって,病気に対する耐性を高めます.
  • CpARF22は,Fusariumの枯れに耐える殻のないカボチャの品種を開発するための有望なターゲットです.

関連する概念動画

C4 Pathway and CAM 01:27

46.2K

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
The C4 pathway is used by plants such as...

Plant Cell Wall 02:43

57.4K

The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.

Collenchyma and sclerenchyma cells, on the other hand, mainly occur in the outer layers of a plant's stems and leaves. These cells provide the plant with strength and support by either partially thickening their primary cell wall (i.e., collenchyma), or depositing a...

Introduction to Plant Diversity 02:22

45.8K

From Water to Land

Kingdom Plantae first appeared about 410 million years ago as green algae transitioned from water to land. This land was a relatively uncolonized environment with ample resources. Terrestrial environments also offered more light and carbon dioxide, required by plants to grow and survive.

However, the stark differences between land and sea posed a formidable challenge to early colonizing species prompting many new adaptations that have resulted in the wide variety of plant...

Cell Specific Gene Expression 01:58

13.9K

Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...

Cell Signaling in Plants 01:25

5.7K

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...

Adaptations that Reduce Water Loss 01:57

26.3K

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

In land plants, the uppermost cell layer of a plant leaf, called the epidermis, is coated with a waxy substance called the cuticle. This hydrophobic layer is composed of the polymer cutin and...