Growth rings are the cross-sections of xylem tissue (as botanists call it, from the Greek work for wood), constituting what we call wood. In temperate zones, rings are produced annually by living ...

In plant xylem tissue, there are two types of cells involved in the actual movement of water, tracheid and vessel elements. For tracheid elements, think of the human trachea, the bony and rigid ...

Many modern xylems have intricate cross sections that look like gappy rings, crosses, diamonds or hearts, with dead space called pith separating bundles of xylem tissue.

Photographer Gerhard Vlcek captured this vibrant cross-section of European beachgrass ... The turquoise tubes adjacent to the plant’s orange tissue are vascular bundles made up of xylem and ...

Within cross-sections of the fossilized trees, researchers were surprised to discover an interconnected web of woody strands. The strands, known as xylem, are tubes that carry water from the roots ...

Filters made from tree branches can purify drinking water sources, an MIT study finds. Prototypes of these xylem filters, tested in India, show promise as a low-cost, natural filtration option.

Sapwood is composed of xylem, porous tissue that conducts sap from a tree’s roots to its crown through a system of vessels and pores. Each vessel wall is pockmarked with tiny pores called pit ...

One day a few years ago, he was at a meeting on plants and water flow when a light bulb went off in his head. Why not, he thought, use the xylem tissue in plants for water filtration?

The key ingredient is plant xylem — a tissue in plants made up of vessels and tiny pores. The vessel pathways allow sap to travel up from the tree's roots to the shoots, while the pores trap air ...