玉米中氧化和酸性修饰的相互作用:对虫草食和干旱压力的影响
Hubert Sytykiewicz1, Paweł Czerniewicz1, Magdalena Ruszczyńska1
1Institute of Biological Sciences, Faculty of Natural Sciences, University of Siedlce, 14 Prusa St., 08-110 Siedlce, Poland.
International journal of molecular sciences
|October 26, 2024
概括
这项研究揭示了氧化 (NO) 和反应性物种 (RNS) 如何调解玉米对虫和干旱压力的反应. 抗性玉米品种显示出增强的NO信号和基因表达,这对于应激适应和恢复至关重要.
科学领域:
- 植物生理学 植物生理学
- 生物化学 生物化学
- 压力生物学 压力生物学
背景情况:
- 氧化 (NO) 和活性物种 (RNS) 是植物中重要的信号分子,调节生长和应激反应.
- 在压力下NO/RNS形成,代谢和功能的精确机制仍然不完全理解.
研究的目的:
- 调查单一和联合虫感染和干旱压力对玉米中NO和过氧酸离子 (ONOO-) 水平的影响.
- 在压力和恢复期间分析mRNA和蛋白质化,以及参与NO代谢 (nos-ip, nr1) 的基因表达.
- 为了比较耐 (Waza) 和易受 (Złota Karłowa) 的玉米品种之间的这些反应.
主要方法:
- 在玉米幼苗中量化NO,ONOO,8-甲 (mRNA化) 和3-甲 (蛋白化).
- 使用RT-qPCR测量nos-ip和nr1基因表达水平.
- 应用单一的 (虫,干旱) 和联合的压力,然后是压力后恢复期.
主要成果:
- 根据玉米品种,时间和压力类型观察到NO,ONOO,化水平和基因表达的显著差异.
- 与敏感的Złota Karłowa相比,抗虫的Waza玉米表现出更早和更高的NO积累,增加的mRNA化,以及上调的nos-ip和nr1基因表达.
- 易受影响的Złota Karłowa玉米在压力条件下显示了ONOO-和蛋白质3-甲酸的更明显增加.
结论:
- 及其衍生物在玉米对各种非生物和生物压力的反应中起着复杂的作用.
- 不同的NO代谢和信号调节有助于压力耐受性的品种差异.
- 了解这些途径对于开发抗压作物品种至关重要.
相关概念视频
Key Elements for Plant Nutrition
18.7K
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...
18.7K
The Roles of Bacteria and Fungi in Plant Nutrition
35.1K
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.
35.1K
Overview of Metabolism
29.5K
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...
29.5K
Plant Hormones
23.5K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
23.5K
Responses 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
Adaptations 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


