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利里奥登德龙体对不同立体密度的生理和分子反应

Jun Chen¹, Ting Li¹, Jinfeng Cai¹

¹Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China.

Plants (Basel, Switzerland)

|March 18, 2024

概括

高位密度通过改变叶子结构和光合作用能力,对Liriodendron chinense的生长产生负面影响. 基因表达分析揭示了对昼夜节律和碳代谢的关键作用,以应对不同的树密度.

科学领域:

林业科学林业科学
植物生理学植物生理学
分子生物学分子生物学

背景情况:

树密度通过影响光线和营养物质的可用性,极大地影响森林的生产力.
了解树木对密度的反应对于森林管理中的气候变化适应至关重要.

研究的目的:

为了研究不同位密度对Liriodendron chinense生长的生理和分子影响.
识别关键基因和参与密度依赖反应的调节网络.

主要方法:

实验性种植Liriodendron chinense的植被密度从277到1万棵树/公.
分析叶子结构,光合作用能力,生物质和营养积累.
转录组测序和基因调控网络的构建.

主要成果:

增加支架密度减少了叶子质量和总碳水化合物含量.
基因表达分析揭示了1784个基因与密度负相关,影响昼夜节律,碳代谢和氨基酸生物合成.
MYB和bHLH转录因子与调节光合作用基因 (petA,psbE,petD) 有关.

结论:

立体密度在生理和分子层面上显著影响Liriodendron chinense的生长.
这些发现为优化Liriodendron chinense种植园的建立提供了基础,以提高生产力.

关键词:

里里奥登德龙青 (Liriodendron chinense) 是一种植物.光合作用光合作用.监管机制监管机制立场密度立场密度转录因子是一种转录因子.

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