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在植物阶段,对绿色玉米的叶子气流的比较生理和转录组分析

Fang Yang¹, Yudie Zhang¹, Hongyi Zhang²

¹Key Laboratory of Soil Resource Sustainable Utilization for Jilin Province Commodity Grain Bases, College of Resources and Environmental Sciences, Jilin Agricultural University, Changchun, 130118, China.

Plant physiology and biochemistry : PPB

|November 3, 2023

概括

玉米杂交物在 (N) 运动和光合作用方面有所不同. 了解叶子N流和光合作用N使用效率 (PNUE) 中的这些差异是提高作物中N使用效率 (NUE) 的关键.

科学领域:

农业科学农业科学
植物生理学植物生理学
分子生物学分子生物学

背景情况:

储存在玉米叶中的 (N) 对于生长至关重要,但其调节和对光合作用的影响尚未完全理解.
提高N使用效率 (NUE) 需要对叶子N进出口和光合作用N使用效率 (PNUE) 的知识.

研究的目的:

研究两种玉米杂交品种的叶子N流和PNUE的生理和分子基础,它们具有不同的绿色特征.
为了确定在植物阶段影响N代谢和光合作用的基因型变异.

主要方法:

利用15N标记和转录组分析来研究N动态和基因表达.
对比了两种玉米杂交品种 (XY335和XY696) 具有明显的绿色特征.

主要成果:

混合物XY696显示出更多的叶子N进口/出口,而XY335由于增加的净光合作用率和叶绿素含量而表现出更高的PNUE.
在XY335中,光合作用相关酶 (PEPc,PEPck,PPDK) 的活性较高.
转录组分析揭示了与N和碳代谢相关的差异性基因表达,包括载体,以响应N流.

结论:

玉米杂交物通过基因表达和酶活性差异调节叶子N流和光合作用.
这项研究提供了关于叶子N动态和PNUE的见解,这对于增强玉米育种中NUE至关重要.

关键词:

叶绿素是什么意思叶绿素是什么意思叶子中的气流量.光合作用酶光合作用酶鲁比斯科 (Rubisco) 是一个古老的葡萄酒.对转录组进行分析.植物阶段植物阶段

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