関連する概念動画
01:57Adaptations that Reduce Water Loss
25.1K
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.
25.1K
02:22Introduction to Plant Diversity
44.0K
From Water to Land
44.0K
02:41Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
02:04Regulation of Transpiration by Stomata
27.8K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
27.8K
02:16Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
01:27C4 Pathway and CAM
45.3K
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...
C4 Pathway
The C4 pathway is used by plants such as...
45.3K
こちらも読む
関連記事
共著者、ジャーナル、引用グラフによってこの研究に関連する記事。
並び替え
Same author
Transcriptomic Analysis in Strawberry Fruits Reveals Active Auxin Biosynthesis and Signaling in the Ripe Receptacle.
Frontiers in plant science·2017
Same author
Photometric assay of maltose and maltose-forming enzyme activity by using 4-alpha-glucanotransferase (DPE2) from higher plants.
Analytical biochemistry·2017
ゼア属特有のマイクロペプチドがトウモロコシの核脱水を制御する
Yanhui Yu1, Wenqiang Li1, Yuanfang Liu1
1National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Hubei Hongshan Laboratory, Wuhan, Hubei 430070, China.
Cell
|November 13, 2024
まとめ
研究者らは,トウモロコシの核脱水率 (KDR) を調節する新しいマイクロペプチド,microRPG1を発見しました. この発見は,トウモロコシのKDRと作物育種を改善するためのツールを提供します.
さらに関連する動画
08:31Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves
Published on: December 2, 2016
10.8K
05:38Using Ustilago maydis as a Trojan Horse for In Situ Delivery of Maize Proteins
Published on: February 8, 2019
11.4K
科学分野:
- 植物生物学
- 遺伝学
- 農業科学
背景:
- コーン脱水率 (KDR) はトウモロコシの生産に不可欠であり,収穫と品質に影響します.
- KDRを制御する遺伝的および分子的メカニズムは完全に理解されていません.
研究 の 目的:
- トウモロコシの核脱水率の基礎にある分子メカニズムを解明する.
- KDRを制御する遺伝的要因を特定する.
主な方法:
- qKDR1を特定するための定量的な特性の位置 (QTL) 分析.
- RPGと下流の標的の遺伝子発現分析
- CRISPR-Cas9で 遺伝子ノックアウトと過剰発現の研究を行いました
- トウモロコシとアラビドプシスの生理学的測定
主要な成果:
- qKDR1という新しい定量的な特徴の場所が,RPG発現を調節する非コーディング配列として特定されました.
- RPGは,エチレンシグナル伝達遺伝子 (ZmEIL1とZmEIL3) を調節することによってKDRを制御する31アミノ酸マイクロペプチドであるmicroRPG1をコードする.
- microRPG1はZeaの属性特有であり,de novoで発生している.その欠如はKDRを加速し,その存在または過剰表現はKDRを遅らせます.
結論:
- この研究は,トウモロコシの核脱水を調節するマイクロRPG1の分子メカニズムを明らかにしています.
- microRPG1は,KDRを強化し,作物の品質と収穫可能性を改善するために,遺伝子工学にとって貴重なターゲットを提供します.