发现SOD5作为一种通过改变辅酶水平来调节利用效率和谷物产量的新型调节剂
Siyu Zhang1, Yunzhi Huang1, Zhe Ji2
1State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
The New phytologist
|March 6, 2025
概括
研究人员在5号染色体上发现了DNR1的抑制剂 (SOD5),这种转录因子可以提高利用效率 (NUE) 和大米的谷物产量. 针对SOD5提高了作物绩效,这对可持续农业至关重要.
科学领域:
- 植物分子生物学 植物分子生物学
- 农业科学 农业科学
- 遗传学 是一个遗传学.
背景情况:
- 辅酶对植物 (N) 使用效率 (NUE) 至关重要,影响生长和N代谢.
- 沉的反应1 (DNR1) 通过抑制辅酶的积累来负面调节米NUE和产量.
研究的目的:
- 为了确定DNR1.1上游作用的分子调节器.
- 探索这些监管机构在米NUE和谷物产量中的作用.
主要方法:
- 突变查以确定DNR1抑制剂.
- 在5号染色体 (SOD5) 上克隆基因和描述DNR1抑制器的基因.
- 分析SOD5与DNR1促进体的结合及其对基因表达和auxin水平的影响.
主要成果:
- 编码MYB转录因子的SOD5被确定为DNR1.1的上游调节器.
- SOD5直接与DNR1促进体结合,激活其表达并进一步抑制auxin积累.
- 淘汰SOD5显著提高了米NUE和谷物产量,特别是在低N条件下.
结论:
- SOD5是DNR1的关键积极调节剂,对米NUE和产量产生负面影响.
- 针对SOD5提出了一个有前途的战略,用于提高作物绩效和开发可持续农业解决方案.
相关概念视频
Key Elements for Plant Nutrition
18.6K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.6K
Light 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
The Roles of Bacteria and Fungi in Plant Nutrition
34.9K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
34.9K
Overview of Metabolism
29.4K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
29.4K
Tonicity in Plants
28.8K
Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
28.8K
Regulation of Transpiration by Stomata
27.7K
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.
27.7K


