相关实验视频

Updated: Jun 25, 2025

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics

Published on: June 17, 2012

为了丰富多彩的生活:在叶子衰老过程中对氨酸生物合成的最新进展

Ziqi Pei^1,2,3, Yifei Huang^1,2,3, Junbei Ni⁴

¹State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China.

|May 24, 2024

概括

叶子衰老会随着反素的积累而引发颜色变化. 了解这一过程有助于培养多彩的植物,并对秋季树叶的洞察力.

科学领域:

植物生物学植物生物学
分子生物学分子生物学
遗传学遗传学是一个

背景情况:

叶子衰老标志着叶子发育的最后阶段,通常以可见的颜色变化为特征.
在衰老过程中安东素的积累对于某些植物物种的装饰和商业价值至关重要.
了解反素积累的分子基础,可以了解秋季色彩和植物育种.

研究的目的:

审查复杂的分子机制,调节在叶子衰老期间的素积累.
讨论影响叶子颜色的遗传,荷尔蒙,环境和营养因素的相互作用.
提出在衰老期间叶子颜色的监管模型,并建议未来的研究方向.

主要方法:

文献综述侧重于了解叶子衰老和酸氨酸生物合成的近期进展.
对参与安东素通路调节的遗传网络的分析.
讨论荷尔蒙,环境和营养因素对安托素积累的影响.

主要成果:

叶子衰老期间的安托西亚宁积累是一个由复杂的遗传网络调节的多方面的过程.
荷尔蒙,环境和营养因素显著调节安托素的产生和沉积.
多个信号通路汇聚在一起,以控制反素积累的时间和程度.

结论:

建议在衰老期间为叶子颜色提供一个全面的监管模型.
对已识别的网络进行进一步的研究可以促进分子育种,以增强植物色彩.
阐明这些机制为农业和园艺应用提供了宝贵的知识.

关键词:

这就是MYB.安托西安尼尼 (anthocyanin) 是一种环境因素环境因素叶子衰老叶子衰老信号通道的信号通道.

更多相关视频

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade

Published on: August 14, 2019

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

Published on: July 5, 2017

相关概念视频

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

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.

Fruit Development, Structure, and Function

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.

Light Acquisition

Light Acquisition

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.

Photoreceptors and Plant Responses to Light

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.

Primary and Secondary Growth in Roots and Shoots

Primary and Secondary Growth in Roots and Shoots

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.

Morphogenesis

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.