Thekey differencebetween symplast and vacuolar pathway is thatin the symplast pathway, water does not enter intovacuoleswhile in the vacuolar pathway, water passes into vacuoles.
Water moves through plant cells, especially across the root, via three major pathways. They areapoplast, symplast and vacuolar pathways. In the apoplast pathway, water and dissolved ions move through the cell walls of cells. Therefore, water does not cross any membrane or细胞质in the apoplast pathway. In the symplast pathway, water moves through protoplasm from cytoplasm to cytoplasm via plasmodesmata, so water does not enter into vacuoles in the symplast pathway. In the vacuolar pathway, water moves through the质膜,细胞质,然后通过液泡。
内容
1.Overview and Key Difference
2.What is Symplast Pathway
3.What is Vacuolar Pathway
4.Similarities Between Symplast and Vacuolar Pathway
5.Side by Side Comparison – Symplast vs Vacuolar Pathway in Tabular Form
6.概括
What is Symplast Pathway?
Symplast途径是植物中水运动的三个主要途径之一。在符号途径中,水通过质量瘤从细胞质移动到细胞质。因此,水不会越过细胞的块状或液泡。通过隔离途径的水运动是通过渗透发生的。而且,该途径使用细胞的原生质。
Moreover, this is one of the main pathways by which water and nutrients reach the xylem of the plant from the soil via roots. Water moves freely through this pathway. Also, low molecular weight solutes such as sugars, amino acids and ions move between cells.
What is Vacuolar Pathway?
液泡途径是通过植物细胞运动的另一种流动途径。在液泡途径中,水通过原生质移动。换句话说,水运动通过细胞壁,质膜,细胞质,块状液体和中央液泡进行。由于水通过液泡途径的植物细胞的几个部分,因此具有很大的阻力。因此,它不常用。仅当单个细胞从周围吸收水时才使用。
What are the Similarities Between Symplast and Vacuolar Pathway?
- Symplast and vacuolar pathways are two of the three main types of water movement pathways through plant cells.
- In both pathways, water passes through the cytoplasm of the cell.
- Water moves by the osmosis in both pathways.
What is the Difference Between Symplast and Vacuolar Pathway?
Symplast途径是水分子通过植物细胞的细胞肿瘤的运动,而液泡途径是水分子通过植物细胞中心液泡的运动。因此,在符号途径中,在液泡途径中,水不进入液泡,水通过中央液泡。因此,这是符号和液泡途径之间的关键区别。
Moreover, water moves from cytoplasm to cytoplasm via plasmodesmata in the symplast pathway. In contrast, water moves through the cell wall, plasma-lemma, cytoplasm, tonoplast and central vacuole in the vacuolar pathway. However, due to the high resistance posed by the vacuolar pathway, it is only used when individual cells uptake water. But, the symplast pathway is commonly used by plants for the water movements.
Below is a tabulation of the difference between symplast and vacuolar pathway.
概括– Symplast vs Vacuolar Pathway
Symplast and vacuolar pathways are two of the three pathways by which water moves in plant cells. In the symplast pathway, water moves from the cytoplasm of one cell to the cytoplasm of the next cell through plasmodesmata. In the vacuolar pathway, water moves between vacuoles of cells crossing cytoplasms as well. Compared to the vacuolar pathway, the resistance is less in the symplast pathway, and plant cells use this pathway more frequently than the vacuolar pathway. Thus, this summarizes the difference between symplast and vacuolar pathway.
Reference:
1.“根中的水运动:3条途径(带有图)”。生物学讨论,2020年,Available here.
2.“ Symplast Pathway”。embibe.com,2020年,Available here.
Image Courtesy:
1. “Apoplast and symplast pathways” By Jackacon, vectorised by Smartse – Apoplast and symplast pathways.gif, (Public Domain) viaCommons Wikimedia
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