在Populus tomentosa中,CRISPR/Cas9突变的p-coumaroyl shikimate 3'-hydroxylase 3基因揭示了在支树直立上运作的素
Sufang Zhang1, Bo Wang2, Qian Li1
1Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architectures, South China Agricultural University, Guangzhou 510642, China.
International journal of biological macromolecules
|September 8, 2023
概括
波普鲁斯树的素缺乏,由C3'H3基因淘汰引起,导致矮化. 这种情况是由于体缩和体变化而发生的,影响了生长和运输.
科学领域:
- 植物生物学 植物生物学
- 生物化学 生物化学
- 遗传学 遗传学 是一个
背景情况:
- 红素在植物的二次新陈代谢中至关重要,但其在木材生长高度方面的作用尚不清楚.
- 了解红素对树木高度的贡献对于林业和植物科学至关重要.
研究的目的:
- 为了研究C3'H3的功能,一个关键的酶在素生物合成,在Populus tomentosa的生长.
- 阐明将红素生物合成与树木高度和植物发育联系起来的分子机制.
主要方法:
- 使用CRISPR/Cas9基因编辑,在Populus tomentosa中创建了一个c3'h3淘汰突变物.
- 评估了表型分析,素含量测量,液压导电性,光合作用效率和辅酶含量.
- 进行了类生物合成途径的基因表达分析和代谢物概况分析.
主要成果:
- 这种c3'h3突变体表现出矮体,体血管崩,体厚度减弱.
- 在突变者中,液压导电性,光合作用效率和辅酶含量都降低了.
- 利格宁生物合成发生变化,H子单元利格宁增加,黄类代谢流量增强,包括升高的hesperetin水平.
结论:
- 素缺乏,特别是C3'H3的淘汰,抑制了树木的生长,并导致矮人表型.
- 突变物体的崩的体和改变的体阻碍了物质交换和运输,限制了生长.
- 这项研究强调了素生物合成,黄类代谢和植物整体发育之间的复杂相互作用.
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