Xylem Cells
Xylem Cells - Related Videos
02:21
Xylem and Transpiration-driven Transport of Resources
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2026
The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process. Tracheids and vessel elements transport xylem sap Tracheary elements are the transport cells of the xylem. They lack cytoplasm and organelles when they are mature and are considered part of the apoplast of the plant because they connect directly with the...
10:47
Xylem Water Distribution in Woody Plants Visualized with a Cryo-scanning Electron Microscope
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Cited by 11 •
2019
Observing the water distribution within the xylem provides significant information regarding water flow dynamics in woody plants. In this study, we demonstrate the practical approach to observe xylem water distribution in situ by using a cryostat and cryo-SEM, which eliminates artifactual changes in the water status during sample preparation.
10:39
Histochemical Staining of Arabidopsis thaliana Secondary Cell Wall Elements
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Cited by 250 •
2014
Plant cell wall composition varies between tissue types and can include lignin, cellulose, hemicelluloses, and pectin. Various staining techniques have been developed to visualize differences at the cell-type level. This paper is a compilation of commonly used cell wall staining techniques.
02:37
Calcofluor White Staining: A Simple Method for UV-Induced Fluorescence Visualization of Cellulose Deposits in Cell Walls of Dicot Plant Stem Sections
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2025
In this video, we describe a staining procedure to visualize cellulose deposition within cell walls of Arabidopsis thaliana, a dicot plant, using calcofluor white, which specifically binds to β-linked glucans, exhibiting fluorescence under UV light.
10:04
Tractable In Vivo Reprogramming of Tumor Cells to Type 1 Conventional Dendritic Cell-like Cells
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2025
This protocol describes the in vivo reprogramming of mouse cancer cells into type 1 dendritic-like cells within the tumor microenvironment through enforced expression of the transcription factors PU.1, IRF8, and BATF3.
FAQs
Lignified secondary walls give mature tracheids and vessel elements structural support while resisting collapse as water moves through hollow conduits. Their thickened construction therefore serves two linked purposes: maintaining an open pathway and strengthening the plant body. This makes wall structure a central feature when interpreting xylem anatomy and function.
Evaporation from leaves generates the cohesion-tension forces that drive upward water movement. The xylem pathway transmits this effect from the roots toward the shoots, carrying water and dissolved mineral nutrients through hollow conduits. Examining this mechanism helps biological studies connect leaf water loss with transport behavior and whole-plant vascular function.
At maturity, tracheids and vessel elements lose their contents, leaving hollow spaces through which water can pass. This developmental change converts living cells into transport conduits while their secondary walls remain as reinforcement. Recognizing this transition is essential when interpreting stained or imaged xylem anatomy.
Microscopy and staining are suited to examining xylem vascular anatomy, whereas microtomography provides another way to study anatomical structure and transport-related features. Hydraulic measurements add a functional assessment of water transport. Used together, these approaches connect what the tissue looks like with how effectively the vascular system conducts water, supporting more complete biological analysis.
Microtomography and hydraulic measurements support analysis that extends beyond visible structure. They can be used to investigate water transport and embolism, while comparisons under drought or other environmental stress address how vascular tissues respond to changing conditions. The resulting evidence links internal xylem features with transport performance and stress-related behavior.
Studies of xylem cells support plant physiology by examining vascular anatomy, water transport, embolism, and stress responses. The same information can inform crop improvement and forest health research, where researchers need to understand how vascular tissues function under changing conditions. These techniques connect cellular-scale observations with broader questions about plant performance and vascular adaptation.
Technique selection should follow the intended outcome. For structure, researchers can use microscopy, staining, or microtomography; for transport function, they can use hydraulic measurements. When a study focuses on drought or other environmental stress, combining anatomical and functional approaches helps examine both tissue organization and water-transport behavior, supporting interpretation of vascular adaptation.