One goes up... and one goes down. I was a college freshman in Botany 101 when I first learned about xylem and phloem, the two transport tissues which carry water and nutrients up and down a tree's ...

The presence of sugars in the phloem drives an osmotic flow of water (blue arrows) from the adjacent xylem tissue (X, blue). This osmotic flow maintains elevated pressure in the phloem ...

The cambium and its "zone" is a cell generator (reproductive tissue called growth meristem) that produces both the inner bark cells of the phloem and new living wood cells in the xylem.

The two tissue types that comprise the conducting system of plants are the xylem and phloem (zigh-lem and flow-um). Both tissues are found throughout the plant, carrying substances to and from ...

Specialised plant cells include root hair cells, palisade cells, xylem cells and phloem cells. Just like animals, plants are made of tiny little cells. Like animal cells, basic plant cells have a ...

Phloem production in Huanglongbing-affected citrus trees Date: March 26, 2014 Source: American Society for Horticultural Science Summary: Researchers monitored the progression of phloem production ...

Numerous insects and pathogens extract nutrients from phloem tissue buried deep inside plants. These phloem-feeding insects and pathogens cause tremendous economic losses worldwide and represent ...