微生物群和根内皮之间的协调支持植物矿物质营养的平衡
Isai Salas-González1,2, Guilhem Reyt3,4, Paulina Flis3,4
1Curriculum in Bioinformatics and Computational Biology, Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Science (New York, N.Y.)
|November 20, 2020
概括
植物的根部使用内皮来管理营养平衡并与微生物协调. 微生物群影响内皮分化,影响植物营养的稳态和酸信号.
科学领域:
- 植物生物学
- 微生物学
- 营养平衡
背景情况:
- 植物根和动物肠道中的特殊细胞层保持矿物质营养的稳定性,同时耐受居住的微生物群.
- 根内皮对植物矿物质营养平衡至关重要,其与微生物群的协调作用尚不清楚.
研究的目的:
- 研究植物根内皮和微生物群之间的协调.
- 描述受微生物群影响的内皮分化的调节机制.
- 了解这种相互作用对植物营养的平衡的影响.
主要方法:
- 使用了模型植物Arabidopsis thaliana
- 与内皮分化相关的特征基因功能.
- 评估了微生物群对植物微生物组组合和营养稳定性的影响.
- 研究了内皮调节,微生物群和酸信号之间的联系.
主要成果:
- 在Arabidopsis thaliana中控制内皮功能的基因会影响植物微生物组组.
- 通过微生物群驱动的内皮分化的调节机制被确定,显著影响营养稳定.
- 这种机制与微生物群抑制根中的酸反应的能力有关.
结论:
- 植物根内皮作为一个调节中心.
- 皮内膜协调微生物群组和恒温机制.
- 这种相互作用对于保持植物健康和营养平衡至关重要.
更多相关视频
09:04Monitoring Bacterial Colonization and Maintenance on Arabidopsis thaliana Roots in a Floating Hydroponic System
Published on: May 28, 2019
11.1K
11:16A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
Published on: July 22, 2017
14.4K
相关概念视频
02:34Water and Mineral Acquisition
34.7K
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.
34.7K
02:11The Roles of Bacteria and Fungi in Plant Nutrition
46.0K
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.
46.0K
01:46The Apoplast and Symplast
52.8K
Plant growth depends on its ability to take up water and dissolved minerals from the soil. The root system of every plant is equipped with the necessary tissues to facilitate the entry of water and solutes. The plant tissues involved in the transport of water and minerals have two major compartments - the apoplast and the symplast. The apoplast includes everything outside the plasma membrane of living cells and consists of cell walls, extracellular spaces, xylem, phloem, and tracheids. The...
52.8K
02:35Key Elements for Plant Nutrition
23.5K
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...
23.5K
02:40Epiphytes, Parasites, and Carnivores
16.1K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
16.1K
02:12Short-distance Transport of Resources
17.1K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.1K