供应促进了竹子和树苗之间的生长差异和C:N:P静态度
Xiaoyu Liu1, Xinghao Tang2, Zacchaeus G Compson3
1College of Forestry, Jiangxi Agricultural University, Nanchang, 330045, China.
BMC plant biology
|September 20, 2023
概括
(Si) 供应通过增加光合作用来促进竹子的生长和营养比率 (N:P). 其他树木表现出不同的反应,影响竹子扩张期间的竞争和生态系统动态.
科学领域:
- 植物生理学 植物生理学
- 生态系统动态生态系统动态
- 营养素循环的循环.
背景情况:
- 高积累的竹子需要 (Si) 进行生长和营养调节.
- 大多数树木缺乏特定的Si载体,限制了酸[Si(OH) [4]的活性吸收.
- 在不同Si供应下,竹子和树木之间的差异生长和C:N:P固态度仍然不清楚.
研究的目的:
- 调查供应对竹子和其他树苗生长,光合作用和营养固态度的影响.
- 了解竹子和树木对可用性的不同反应.
- 提供数据,以评估在含量改变的情况下的工厂竞争.
主要方法:
- 对竹子和树苗的供应进行实验操作.
- 测量生长参数 (高度,基底直径).
- 分析光合作用速率,透气速率,以及C:N:P静脉测量.
主要成果:
- 供应提高了竹子的生长率和N:P比率,与增加的净光合作用有关.
- 高供应通过部分用替代碳,降低了竹叶中的C:Si比率.
- 叶子度与树苗的透气率呈正相关.
结论:
- 供应改变了竹子中的叶子C:Si比率和N:P比率,但不影响树苗.
- 这些发现突出了竹子与树木对可用性的独特生理和静态度反应.
- 结果为植物竞争和生态系统影响的评估提供了信息,这些影响来自不断扩大的竹种群.
相关概念视频
Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
Primary and Secondary Growth in Roots and Shoots
57.4K
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.
57.4K
C4 Pathway and CAM
45.6K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
45.6K
The Calvin Benson Cycle
4.6K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.6K
Water and Mineral Acquisition
33.2K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
33.2K
Short-distance Transport of Resources
16.1K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.1K


