棕色的虫操纵着水糖运输器,以使自己的食受益
Lingyuan Yu1, Yumeng Chen1, Xuan Zeng2
1State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China.
Current biology : CB
|June 13, 2024
概括
食大米的棕色 (BPH) 通过调节SWEET13和SWEET14基因来诱导糖的积累. 突变这些基因可以增强大米对BPH和细菌病的抵抗力,而不会影响产量.
科学领域:
- 植物与昆虫的相互作用
- 分子植物病理学 分子植物病理学
- 农业昆虫学 农业昆虫学
背景情况:
- 养植物的昆虫操纵宿主植物,以提高资源的获取.
- 草食动物诱导的资源重新分配的分子机制尚未得到充分理解.
- 棕色虫 (BPH) 是一种影响水汁成分的重要虫.
研究的目的:
- 研究SWEET13和SWEET14基因在米对BPH草食反应中的作用.
- 确定操纵这些SWEET基因是否可以增强植物对害虫的抵抗力.
- 探索潜在的分子标,用于培育抗虫害的米品种.
主要方法:
- 基因组编辑被用来创建甜13/14突变大米线.
- 分析了BPH草本动物对叶囊液糖水平和基因表达的影响.
- 对BPH和细菌病原体的耐药性 (Xanthomonas oryzae pv. 在突变植物和野生植物中进行了评估.
- 进行了实地试验,以评估产量和害虫耐药性.
主要成果:
- 食BPH诱导了SWEET13和SWEET14在米叶中的表达,与增加的叶液糖相关.
- 在SWEET13和SWEET14中的突变显著减少了BPH诱导的糖累积.
- 甜甜13/14突变体对BPH和细菌病菌的抗性增强.
- 实地研究表明,sweet13/14突变种可以达到与野生种类相比的产量,同时表现出更好的害虫抵抗力.
结论:
- SWEET13和SWEET14在调解中的BPH诱导的糖再分配方面发挥着至关重要的作用.
- 针对SWEET运输商提供了一个有前途的战略,用于开发抗昆虫的米品种.
- 在SWEET基因中的突变为培育具有对昆虫害虫和病原体的双重耐药性而没有产量损失的米提供了潜在的途径.
相关概念视频
02:02Phloem and Sugar Transport
37.2K
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.
37.2K
02:40Epiphytes, Parasites, and Carnivores
13.0K
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...
13.0K
01:59Plant Breeding and Biotechnology
18.9K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.9K