综合代谢组分析和转录资料揭示了SWEETs在胡卜尾根发育过程中糖累积中的潜在作用
Guanglong Wang1, Yujie Xu2, Jiaqi Wu2
1School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China. 11160021@hyit.edu.cn.
BMC plant biology
|April 14, 2025
概括
这项研究跟踪了在胡卜根发育过程中糖代谢物和糖最终将被输出运输器 (SWEET) 基因. 研究结果揭示了改善胡卜繁殖的关键糖动态和基因表达模式.
科学领域:
- 植物科学 植物科学
- 代谢学 代谢学 代谢学
- 分子生物学分子生物学
背景情况:
- 胡卜是营养丰富的根蔬菜,对全球农业至关重要.
- 碳水化合物,特别是糖,对于植物生长,应激反应和园艺产品质量至关重要.
- 了解胡卜根发育过程中的糖代谢动态对于作物改善至关重要.
研究的目的:
- 调查胡卜根代谢物的动态变化,重点关注糖,在不同的发育阶段.
- 分析糖的表达模式将最终出口运输 (SWEET) 基因与糖积累有关的基因.
- 提供关于胡卜根发育和质量的遗传和代谢基础的见解.
主要方法:
- 使用超高性能液态染色学与电子喷射电离式双重质谱学 (UPLC-ESI-MS/MS) 结合用于代谢物分析.
- 量化和分析差异积累的代谢物,特别关注糖化合物.
- 检查了在各种发育阶段的根组织内胡卜SWEET基因的转录模式.
主要成果:
- 总共鉴定了727种代谢物,其中539种显示出跨发育阶段的差异积累.
- 在胡卜根发育过程中检测到34种不同积累的糖代谢物.
- 发现了17个特异表达的胡卜SWEET基因,特别是在根部,与糖累积和生长潜力相关.
结论:
- 这项研究阐明了在胡卜根发育过程中糖代谢和SWEET基因表达的复杂相互作用.
- 这些发现为通过选择性育种提高胡卜产量和营养质量提供了有价值的目标.
- 为未来研究优化胡卜作物性能和应激弹性提供基础.
相关概念视频
Phloem and Sugar Transport
33.1K
Like many living organisms, plants have tissues that specialize in specific plant functions. For example, shoots are well adapted to rapid growth, while roots are structured to acquire resources efficiently. However, sugar production is primarily restricted to the photosynthetic cells that reside in the leaves of angiosperm plants. Sugar and other resources are transported from photosynthetic tissues to other specialized tissues by a process called translocation.
33.1K
Sugars as Energy Storage Molecules
8.2K
Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
8.2K
Carbohydrate Metabolism
10.6K
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
10.6K
C4 Pathway and CAM
45.0K
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...
45.0K
Water and Mineral Acquisition
28.7K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
28.7K
Carbohydrate Digestion
112.0K
Carbohydrate digestion and metabolism break down simple and complex carbohydrates from food into saccharides (i.e., sugars) for the body to use as energy. Carbohydrate digestion starts in the mouth during mastication, or chewing. The masticated carbohydrates remain intact in the stomach. Digestion resumes in the duodenum of the small intestine, where pancreatic alpha-amylase and brush border enzymes of the microvilli convert complex carbohydrates to monosaccharides. Finally, the monosaccharides...
112.0K


