在生物能源过程中,状积累和调节途径基因表达,为茎发育提供生物能量
Robert Chemelewski1, Brian A McKinley1, Scott Finlayson2
1Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, United States.
Frontiers in plant science
|November 8, 2023
概括
生物能源茎的组成和积累与基因表达有关. 这项研究详细介绍了负载,化学成分以及生物合成的基因调节,从而提高了的弹性.
科学领域:
- 植物生物学 植物生物学
- 生物化学 生化学
- 农业科学 农业科学
背景情况:
- 生物能源是一种耐旱,高生物质的作物,对边缘土地至关重要.
- 茎树皮状有助于植物抵御非生物压力的弹性.
- 了解生物合成是优化用于生物能源生产的关键.
研究的目的:
- 为了描述树干皮状的负载,组成和生物能源的形态学.
- 研究茎中生物合成途径基因的表达和调节.
- 为了阐明茎对的弹性贡献.
主要方法:
- 对Wray,R07020和TX08001种子的基因型分析.
- 干负载和化学成分 (酒精,) 的量化.
- 扫描电子显微镜 (SEM) 用于形态测量.
- 路基因的基因表达分析 (RT-qPCR).
- 基因调节网络分析.
主要成果:
- 茎表现出高的负荷 (103-215 μg/cm2),超过了阿拉比多普西斯.
- 发育中的茎表现出主要酒精的丰富 (C28/30),而成熟的茎则富含化物 (C28/30).
- 管看起来已经完成了细胞延长,与软木-酸盐细胞复合体有关.
- 生物合成基因的差异表达 (例如SbKCS6,SbCER3-1,SbWSD1) 与积累阶段相关.
- 关键转录因子同类物 (例如,SbSHN1,SbMYB94) 被确定为黄生物合成的潜在调节者.
结论:
- 茎的组成和积累在发育过程中受到动态调节.
- 特定的基因和转录因子在黄生物合成和皮层形成中发挥着关键作用.
- 这项研究提供了关于茎的遗传基础的见解,有助于提高作物弹性和生物能源潜力.
相关概念视频
Adaptations that Reduce Water Loss
25.6K
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.
25.6K
Role of Microtubules in Cell Wall Deposition
2.4K
Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of...
2.4K
Seed Structure and Early Development of the Sporophyte
28.3K
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
28.3K
Multipotency and Niche of Bulge Stem Cell
3.7K
A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...
3.7K


