叶子分泌结构在Rosa lucieae (Rosaceae):分泌的两倍 - 两个生态功能?
Valdnéa Casagrande Dalvi1, Maycon de Sousa Silva2, Alex Batista Moreira Rios2
1Laboratório de Anatomia Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano (IF Goiano, Campus Rio Verde), Rodovia Sul Goiana, Km 01, Zona Rural, Rio Verde, Goiás, 75901-970, Brazil. valdnea.dalvi@ifgoiano.edu.br.
Protoplasma
|September 12, 2023
概括
罗莎·卢西叶 (Rosa lucieae) 具有收集器和分泌体,它们可以保护正在发育的叶子并阻止食草动物. 收集器分泌粘液,而三体则散发脂质和烯,突出显示了各种植物防御策略.
科学领域:
- 植物解剖学和形态学
- 植物生态学 植物生态学
- 生物化学 生物化学
背景情况:
- 像三合体和聚合体这样的分泌结构产生具有生态功能的排泄物.
- 在Rosaceae中,分泌三体在叶子上发现,收集器与叶子牙有关.
研究的目的:
- 为了识别Rosa lucieae中的分泌结构.
- 通过形态解剖学和体质化学分析,阐明这些腺体的生态作用.
主要方法:
- 光和扫描电子显微镜用于发育和成熟的叶子.
- 应用了形态解剖学和体化学技术.
主要成果:
- 在叶子/树边缘发现的收集器,分泌粘液并保护年轻的叶子.
- 在各种叶片上存在的分泌三体分泌脂质和烯,提供对病原体和食草动物的保护.
- 这两种结构都通过皮膜破裂分泌.
结论:
- 罗莎lucieae采用收集器来保护早期的叶子发育和分泌三体,以在整个叶子本体发生过程中提供更广泛的防御.
- 集体 (粘膜) 和三合体 (脂质,烯) 的独特分泌物表明了专门的生态作用.
相关概念视频
Lysosomes
19.1K
Lysosomes are membrane-enclosed spherical sacs derived from the Golgi apparatus. The most important function of the lysosome is degrading macromolecules and biological polymers that are released during membrane trafficking events such as the secretory, endocytic, autophagic, and phagocytic pathways. The degradation is carried out by several hydrolytic enzymes active in an acidic environment of the lysosomal lumen. These acid hydrolases are involved in cellular processes such as cell signaling,...
19.1K
Adaptations that Reduce Water Loss
25.7K
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.
25.7K
Light Acquisition
8.5K
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.
8.5K
Introduction to Plant Diversity
44.9K
From Water to Land
44.9K
Overview of Secretory Vesicles
8.6K
Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
8.6K
Exocrine Glands: Methods of Secretion
4.2K
Exocrine glands are those that release their secretions through ducts. Based on their mode of secretion, they can be classified into merocrine, apocrine, and holocrine.
Merocrine Secretion
Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine...
Merocrine Secretion
Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine...
4.2K


