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Xylem - Wikipedia
Xylem is one of the two types of transport tissue in vascular plants, the other being phloem; both of these are part of the vascular bundle. The basic function of the xylem is to transport water upward from the roots to parts of the plants such as stems and leaves, but it also transports nutrients. The word xylem is derived … See more
The most distinctive xylem cells are the long tracheary elements that transport water. Tracheids and vessel elements are distinguished by their … See more
Primary xylem is formed during primary growth from procambium. It includes protoxylem and metaxylem. Metaxylem develops after the … See more
Xylem appeared early in the history of terrestrial plant life. Fossil plants with anatomically preserved xylem are known from the See more
In his book De plantis libri XVI (On Plants, in 16 books) (1583), the Italian physician and botanist Andrea Cesalpino proposed that plants draw water from soil not by magnetism (ut … See more
The xylem, vessels and tracheids of the roots, stems and leaves are interconnected to form a continuous system of water … See more
Xylem development can be described by four terms: centrarch, exarch, endarch and mesarch. As it develops in young plants, its nature changes from protoxylem to metaxylem (i.e. from first xylem to after xylem). The patterns in which protoxylem and metaxylem are … See more
Wikipedia text under CC-BY-SA license Xylem Parenchyma—Role and Relevance in Wood …
In this review, we focus on the following selected roles of the xylem parenchyma in tree functioning, with emphasis on contact cells/VACs: (1) as a storage tissue; (2) in the regulation of xylem conductivity; (3) in a defence mechanism; (4) in …
Heartwood, Sapwood, Xylem - Master Gardeners of …
Xylem is the wood of a woody plant. It has three types of cells: conductive elements and fibers, both of which are dead cells, and living parenchyma cells. In the newer, outer wood layer, called sapwood , are the conductive elements …
Xylem – Wood Structure - Southern Illinois University …
Oct 12, 2022 · Xylem – Wood Structure I. General Information A. Hardwood (dicotyledons). Dicot woods are strong, heavy, dense, with many fibers. Example: Ilex opaca. B. Softwoods (gymnosperms).
Wood - Cells, Xylem, Elements, and Vessel - JRank Articles
Wood, also known as secondary xylem, is a composite of tissues found in trees. Secondary xylem is composed primarily of cells, called vessel elements in angiosperms, or of slightly different …
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Wood - Axial and Ray parenchyma, Annual ring, Ring …
Oct 9, 2024 · Wood, or secondary xylem, is a complex tissue derived from the vascular cambium, primarily found in the stems and roots of both gymnosperm and angiosperm-dicotyledonous plants. The study of wood through …
Plant Bodies: Wood - How trees filter water - Cronodon
Feb 15, 2014 · Wood is made up of a tissue called xylem. Xylem has two main functions - the conduction of water and ions (xylem sap) from the roots to the leaves, and mechanical support. Additionally, it can also act as a storage …
Wood vs Xylem - What's the difference? - WikiDiff
Used as a material for construction, to manufacture various items, etc. or as fuel while xylem is a vascular tissue in land plants primarily responsible for the distribution of water and minerals …
Secondary Xylem - an overview | ScienceDirect Topics
Wood, also called secondary xylem, is a highly specialized vascular tissue characterized by the presence of thick heavily lignified secondary cell walls composed of three main polymers: …
Woody plant cell walls: Fundamentals and utilization
In this review, we first describe the three xylem cell types. We next highlight recent discoveries of causative genetic and epigenetic mechanisms and present factors, such as hormones and stress, regulating cell wall biosynthesis for …