干和叶表型,生理反应和细胞超结构对脱叶的甘品种的影响
Qiang Liang1, Xiaoyan Liu1, Xiu-Peng Song1
1Sugarcane Research Institute, Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China.
Scientific reports
|October 9, 2024
概括
甘叶的脱叶程度因品种而异,受叶特征的影响,如纤维素和素含量. 更高的过氧化酶和甲水平与成熟的叶子的色相关.
科学领域:
- 植物科学 植物科学
- 农业学是一种农业学.
- 生物化学 生物化学
背景情况:
- 脱叶是甘的一个关键农学特征,在各品种之间存在很大的差异.
- 了解叶子在脱叶过程中的形态和生化反应对于作物管理至关重要.
研究的目的:
- 为了评估叶子形态反应,氧化代谢物和糖品种在叶子脱叶过程中的酶活性.
- 为了研究叶子外特征和脱叶过程之间的关系.
主要方法:
- 在不同的甘品种 (GT47,ROC22,GT60) 中,对叶子形态,纤维素,红素,马隆迪化物含量和酶活性 (过氧化酶,外β-1,4-葡萄糖酶/纤维酸酶) 的比较分析.
- 在成熟的叶子中评估脱落区和色过程.
主要成果:
- 培养ROC22表现出最高的叶子纤维素和素含量,而GT60具有最高的甲含量.
- 过氧化酶活性在ROC22中最高,而外β-1,4-葡萄糖酶/细胞氧化酶活性在GT47中最高.
- 成熟的叶子容易脱叶,表现为松散的叶,大的倾斜角度,以及脱落区域的显著变形.
结论:
- 叶子外纤维和素含量与外硬度和厚度正相关.
- 甘品种表现出明显的脱叶模式,受叶成分和生物化学标记的影响.
- 过氧化酶和甲水平与成熟的叶子的色过程具有积极的相关性,这表明它们在脱叶过程中的作用.
相关概念视频
Adaptations that Reduce Water Loss
25.1K
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.
25.1K
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Phloem and Sugar Transport
36.4K
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.
36.4K
Primary and Secondary Growth in Roots and Shoots
56.5K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
56.5K


